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Sample records for dam blue creek

  1. Ground based interferometric radar initial look at Longview, Blue Springs, Tuttle Creek, and Milford Dams

    NASA Astrophysics Data System (ADS)

    Deng, Huazeng

    Measuring millimeter and smaller deformation has been demonstrated in the literature using RADAR. To address in part the limitations in current commercial satellite-based SAR datasets, a University of Missouri (MU) team worked with GAMMA Remote Sensing to develop a specialized (dual-frequency, polarimetric, and interferometric) ground-based real-aperture RADAR (GBIR) instrument. The GBIR device is portable with its tripod system and control electronics. It can be deployed to obtain data with high spatial resolution (i.e. on the order of 1 meter) and high temporal resolution (i.e. on the order 1 minute). The high temporal resolution is well suited for measurements of rapid deformation. From the same geodetic position, the GBIR may collect dual frequency data set using C-band and Ku-band. The overall goal of this project is to measure the deformation from various scenarios by applying the GBIR system. Initial efforts have been focusing on testing the system performance on different types of targets. This thesis details a number of my efforts on experimental and processing activities at the start of the MU GBIR imaging project. For improved close range capability, a wideband dual polarized antenna option was produced and tested. For GBIR calibration, several trihedral corner reflectors were designed and fabricated. In addition to experimental activities and site selection, I participated in advanced data processing activities. I processed GBIR data in several ways including single-look-complex (SLC) image generation, imagery registration, and interferometric processing. A number of initial-processed GBIR image products are presented from four dams: Longview, Blue Springs, Tuttle Creek, and Milford. Excellent imaging performance of the MU GBIR has been observed for various target types such as riprap, concrete, soil, rock, metal, and vegetation. Strong coherence of the test scene has been observed in the initial interferograms.

  2. Wildlife Mitigation and Restoration for Grand Coulee Dam: Blue Creek Project, Phase 1.

    SciTech Connect

    Merker, Christopher

    1993-04-01

    This report is a recommendation from the Spokane Tribe to the Northwest Power Planning Council (NPPC) for partial mitigation for the extensive wildlife and wildlife habitat losses on the Spokane Indian Reservation caused by the construction of Grand Coulee Dam. NPPC`s interim wildlife goal over the next 7 years for the Columbia hydropower system, is to protect, mitigate and enhance approximately 35% basin wide of the lost habitat units. Grand Coulee Dam had the greatest habitat losses of any Dams of the Wildlife Rule.

  3. 2. Salmon Creek Diversion Dam, overview, diversion weir center foreground, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Salmon Creek Diversion Dam, overview, diversion weir center foreground, headworks overflow weir to center left, view to east - Salmon Creek Diversion Dam, Salmon Creek, Okanogan, Okanogan County, WA

  4. 1. Salmon Creek Diversion Dam, weir (to left), sand and ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Salmon Creek Diversion Dam, weir (to left), sand and silt sluice gate (center), main canal headworks (to right), view to northwest - Salmon Creek Diversion Dam, Salmon Creek, Okanogan, Okanogan County, WA

  5. 5. Downstream face of Rock Creek Diversion Dam, looking west ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. Downstream face of Rock Creek Diversion Dam, looking west (Diversion into Irrigation District canal) - Bitter Root Irrigation Project, Rock Creek Diversion Dam, One mile east of Como Dam, west of U.S. Highway 93, Darby, Ravalli County, MT

  6. 4. Downstream face of Rock Creek Diversion Dam, looking west ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Downstream face of Rock Creek Diversion Dam, looking west (Irrigation District canal to right, creek gate and weir to left) - Bitter Root Irrigation Project, Rock Creek Diversion Dam, One mile east of Como Dam, west of U.S. Highway 93, Darby, Ravalli County, MT

  7. 2. Upstream face of Rock Creek Diversion Dam, looking east ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Upstream face of Rock Creek Diversion Dam, looking east (Canal slide gates to left, Rock Creek diversion gate to right in raised position) - Bitter Root Irrigation Project, Rock Creek Diversion Dam, One mile east of Como Dam, west of U.S. Highway 93, Darby, Ravalli County, MT

  8. National Dam Inspection Program. Blue Mountain Lake Dam (NDI ID PA 00627, PA DER 45-34), Delaware River Basin, Unnamed Tributary of Brodhead Creek, Pennsylvania. Phase I Inspection Report

    DTIC Science & Technology

    1981-08-01

    mounood [ ,3Q,,s’t,lt l oo &I on .. .. .+ MCCR DELAWARE RIVER BASIN Avallability Co4e _Avail- and/tim’eor - 11As pecial8J BLUE MOUNTAIN LAKE DAM...concrete reservoir outlet pipe discharges into the spillway channel about 50 feet downstream of the embankment. The inlet gate, which is located in the...impoundment at the upstream end of the pipe , is no longer operable. b. Lncation. Blue Mountain Lake Dam is located on a branch of Ruliffs Run, about 2.5

  9. 1. Upstream face of Rock Creek Diversion Dam, looking east ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Upstream face of Rock Creek Diversion Dam, looking east (Overflow weir right, diversion section into Irrigation District Canal to left) - Bitter Root Irrigation Project, Rock Creek Diversion Dam, One mile east of Como Dam, west of U.S. Highway 93, Darby, Ravalli County, MT

  10. 50. Upstream face of Humbug Creek Diversion Dam showing sluice ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    50. Upstream face of Humbug Creek Diversion Dam showing sluice opening. Photographer James Eastwood, 1986. Source: Salt River Project. - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  11. 49. Downstream face of Humbug Creek Diversion Dam with sluice ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    49. Downstream face of Humbug Creek Diversion Dam with sluice opening at center. Photographer James Eastwood, 1986. Source: Salt River Project. - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  12. Deer Creek Dam, Dam, 1,204 feet/238 degrees from intersection of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Deer Creek Dam, Dam, 1,204 feet/238 degrees from intersection of dam complex access road and U.S. Highway 189 to center of dam, 874 feet/352 degrees from Hydroelectric Powerplant (HAER UT-93-B) to center of dam, Charleston, Wasatch County, UT

  13. 2. Rear view of upper dam with Millstone Creek flowing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Rear view of upper dam with Millstone Creek flowing over overspill. Photograph taken from west bank of Millstone Creek. VIEW SOUTHEAST - Loleta Recreation Area, Upper Dam, 6 miles Southeast of interesection of State Route 24041 & State Route 66, Loleta, Elk County, PA

  14. 33 CFR 117.705 - Beaver Dam Creek.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Beaver Dam Creek. 117.705 Section 117.705 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements New Jersey § 117.705 Beaver Dam Creek. The draw of...

  15. 33 CFR 117.705 - Beaver Dam Creek.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Beaver Dam Creek. 117.705 Section 117.705 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements New Jersey § 117.705 Beaver Dam Creek. The draw of...

  16. 33 CFR 117.705 - Beaver Dam Creek.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Beaver Dam Creek. 117.705 Section 117.705 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements New Jersey § 117.705 Beaver Dam Creek. The draw of...

  17. 33 CFR 117.705 - Beaver Dam Creek.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Beaver Dam Creek. 117.705 Section 117.705 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements New Jersey § 117.705 Beaver Dam Creek. The draw of...

  18. 33 CFR 117.705 - Beaver Dam Creek.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Beaver Dam Creek. 117.705 Section 117.705 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements New Jersey § 117.705 Beaver Dam Creek. The draw of...

  19. 29. At Willard, Little Salmon Creek. Site of former dam ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    29. At Willard, Little Salmon Creek. Site of former dam and water supply pond for Broughton flume. View from downstream of intake, dam wind wall to right, lower wall of overflow chute in left foreground (contains pipes and small dam, possibly for water pumping). West 320 degrees. - Broughton Flume, Hood River Junction on Columbia River at Washington/Oregon border, Hood, Skamania County, WA

  20. Upper York Creek Dam Removal, Fish Passage, and Ecosystem Restoration

    EPA Pesticide Factsheets

    Information about the Upper York Creek Dam Removal, Fish Passage, and Ecosystem Restoration part of an EPA competitive grant program to improve SF Bay water quality focused on restoring impaired waters and enhancing aquatic resources.

  1. 53. Humbug Creek looking downstream from Humbug Diversion Dam. Retaining ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    53. Humbug Creek looking downstream from Humbug Diversion Dam. Retaining wall for canal is visible beginning at left center. Photographer James Eastwood, 1986. Source: Salt River Project. - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  2. 52. Humbug Creek Diversion Dam showing original masonry structure at ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    52. Humbug Creek Diversion Dam showing original masonry structure at right and concrete weir at left added later. Photographer James Eastwood, 1986. Source: Salt River Project. - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  3. Deer Creek Dam, Hydroelectric Powerplant, 868 feet/291 degrees from intersection ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Deer Creek Dam, Hydroelectric Powerplant, 868 feet/291 degrees from intersection of dam complex access road with U.S. Highway 189, 1,340 feet/352 degrees from the dam spillway overpass, Charleston, Wasatch County, UT

  4. 49. BEAR CREEK AND SANTA ANA RIVER DIVERSION DAMS AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    49. BEAR CREEK AND SANTA ANA RIVER DIVERSION DAMS AND CONCRETE CONDUIT NO. 1, PROJECT 1933, EXHIBIT F, SANTA ANA POWERHOUSE NO. 1. SCE drawing no. 5206851, no date (FERC no. 1933-41). - Santa Ana River Hydroelectric System, Redlands, San Bernardino County, CA

  5. National Dam Safety Program. Brushy Creek Tailings Dam (MO 30951), White Basin, Reynolds County, Missouri. Phase I Inspection Report.

    DTIC Science & Technology

    1979-08-01

    a crushed rock underdrainage system and earth starter dam . The configuration of the dam , reservoir, and appurtenant structures are best described by...AO-AI06 458 ARMY ENGINEER DISTRICT ST LOUIS MO F/6 13/13 NATIONAL DAM SAFETY PROGRAM. BRUSHY CREEK TAILINGS DAM (MO 3095--ETC(U) AUG 79 W ft...CATALOG NUMBER 4. TITLE (ind Subtitle) 5. TYPE OF REPORT & PERIOD COVERED Phase I Dam Inspection Report National Dam Safety Program Final F’eprt . Brushy

  6. VIEW OF FOSSIL CREEK DIVERSION DAM FROM DOWNSTREAM (INCLUDES 1950s ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    VIEW OF FOSSIL CREEK DIVERSION DAM FROM DOWNSTREAM (INCLUDES 1950s AUTOMATIC/REMOTE CONTROL SLUICE GATE IN UPPER CENTER OF DAM, NORTH SIDE). LOOKING NORTH-NORTHWEST - Childs-Irving Hydroelectric Project, Fossil Creek Diversion Dam, Forest Service Road 708/502, Camp Verde, Yavapai County, AZ

  7. Flood of August 27-28, 1977, West Cache Creek and Blue Beaver Creek, southwestern Oklahoma

    USGS Publications Warehouse

    Corley, Robert K.; Huntzinger, Thomas L.

    1979-01-01

    This report documents a major storm which occurred August 27-28, 1977, in southwest Oklahoma near the communities of Cache and Faxon, OK. Blue Beaver Creek and West Cache Creek and their tributaries experienced extensive flooding that caused an estimated $1 million in damages. Reported rainfall amounts of 8 to 12 inches in 6 hours indicate the storm had a frequency in excess of the 100-year rainfall. Peak discharges on Blue Beaver Creek near Cache and West Cache Creek near Faxon were 13,500 cubic feet per second and 45,700 cubic feet per second respectively. The estimated flood frequency was in excess of 100 years on Blue Beaver Creek and in excess of 50 years on West Cache Creek. Unit runoff on small basins were in excess of 2000 cubic feet per second per square mile. Surveyed highwater marks were used to map the flooded area. (USGS)

  8. Channel response to dam removal, Clear Creek, California

    NASA Astrophysics Data System (ADS)

    Miller, P.; Kondolf, G. M.; Ferry, M.

    2003-12-01

    Clear Creek drains 720 km2, joining the Sacramento River south of Redding, California. The 4.6-m high Saeltzer Dam blocked upstream migration of chinook salmon (Oncorhynchus tshawytscha) since it was built in 1912 to divert water for irrigation. Saeltzer Dam was removed in 2000 to restore anadromous fish access to upstream reaches. Before the dam was taken down, 19,000 m3 of sediment stored behind the dam was mechanically removed, but substantial deposits remained. A 2001 survey (Stillwater Sciences and University of California Davis 2001) detected little channel change in the former reservoir area over the 2001 flow season (peak flow 35 m3s-1). We resurveyed the channel in 2003 (peak flow 130 m3s-1). Our survey documented post 2001 incision of more than 1 m, over about 320 m upstream of the former dam site to an active headcut, and lateral erosion of 15-18 m, for total erosion of over 3000 m3 from the former reservoir deposit. Dam removal has led to desiccation of riparian trees (mostly Alnus spp.), with over 50 trees visibly dead or dying, and lateral bank erosion has removed more trees.

  9. National Dam Inspection Program. Ingham Creek (Aquetong Lake) Dam (NDI ID PA 00224, PA DER 9-49) Delaware River Basin, Ingham Creek, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1981-04-01

    8217 Date of Inspection: December 18, 19B0 ASSESSMENT Ingham Creek Dam , which impounds a private recreational lake, consists of an earth embankment...Appurtenances. Ingham Creek Dam consists of an earth embankment, approximately 645 feet long, with a maximum height of 24 feet. The embankment has a...Elev. 149.8 12.4 Top of Dam , Elev. 150.8 13.4 g. Dam Data Type Earth Embankment Length 645 feet Height to Low Point of Top of Dam 24 feet Crest Width

  10. Water quality in the Blue Creek arm of Lake Eufaula and Blue Creek, Oklahoma, March-October 1978

    USGS Publications Warehouse

    Kurklin, J.K.

    1985-01-01

    Based on samples collected bimonthly for major inorganic and trace elements and monthly for biota and bacteria, water from the Blue Creek arm of Lake Eufaula and Blue Creek is suitable for most uses when compared to water-quality standards or criteria. Concentrations of most chemical constituents gradually increased from spring to fall. The concentrations generally were within established drinking-water standards, with the exception of iron and manganese. Using water-quality determinations and biologic indicators, the water from Blue Creek arm of Lake Eufaula and Blue Creek is: (1) Soft and acidic with little mineral content and conductivity; (2) calm or very slowly moving; and (3) warm and enriched with organic matter.

  11. National Dam Inspection Program. Broad Creek Dam (NDI-Number-MD-00017), Susquehana River Basin, Broad Creek, Harford County, Maryland. Phase I Inspection Report.

    DTIC Science & Technology

    1979-08-01

    4 miles upstream from Conowingo Dam . c. Size Classification. The maximum height of the dam is 36.4 feet. The reservoir volume to the top of the dam at...159.0 HYDROMETEOROLOGICAL GAGES: a. Type daily totals b. Location Conowingo Dam c. Records 44 yrs. of record B-1 1 lam CN r-4 -4 .4 1 -4 :3 44 N C~4 q...G7NATIONAL DAM INSPECTION PROGRAM. BROAD CREEK DAM (NDI NUMBER-MD--ETC(U) UNCLASSIFIED mnmmmmmmmu miinihEEEEEiA JIB125 1.4~~~flf~~ MICRO~COPY R[So

  12. Blue Creek Winter Range : Wildlife Mitigation Project : Final Environmental Assessment.

    SciTech Connect

    United States. Bonneville Power Administration; United States. Bureau of Indian Affairs; Spokane Tribe of the Spokane Reservation, Washington

    1994-11-01

    Bonneville Power Administration (BPA) proposes to fund that portion of the Washington Wildlife Agreement pertaining to the Blue Creek Winter Range Wildlife Mitigation Project (Project) in a cooperative effort with the Spokane Tribe, Upper Columbia United Tribes, and the Bureau of Indian Affairs (BIA). If fully implemented, the proposed action would allow the sponsors to protect and enhance 2,631 habitat units of big game winter range and riparian shrub habitat on 2,185 hectares (5,400 acres) of Spokane Tribal trust lands, and to conduct long term wildlife management activities within the Spokane Indian Reservation project area. This Final Environmental Assessment (EA) examines the potential environmental effects of securing land and conducting wildlife habitat enhancement and long term management activities within the boundaries of the Spokane Indian Reservation. Four proposed activities (habitat protection, habitat enhancement, operation and maintenance, and monitoring and evaluation) are analyzed. The proposed action is intended to meet the need for mitigation of wildlife and wildlife habitat adversely affected by the construction of Grand Coulee Dam and its reservoir.

  13. Hydrogeophysical investigations of the earthen Martis Creek Dam, Truckee, CA

    NASA Astrophysics Data System (ADS)

    Powers, M.; Minsley, B.; Bedrosian, P. A.; Burton, B.

    2008-12-01

    Martis Creek Dam, to the north of Lake Tahoe, was constructed for flood control in 1972 by the US Army Corp of Engineers. Since completion, all attempts to raise the level of Martis Creek Reservoir to its design level have been aborted due to seepage from locations downstream and along the west dam abutment. Following a recent evaluation, concerns have been raised regarding the potential for dam failure due to such seepage, combined with the consequences of failure on the growing population of Reno downstream. In response to these concerns, the US Geological Survey has undertaken a comprehensive suite of geophysical investigations aimed at understanding the interplay between geologic structure, seepage patterns, lake level, and ground-water levels. Investigations to date are focused upon a series of profiles, along which P- and S- wave reflection/refraction, DC resistivity, time-domain electromagnetic, and self- potential measurements have been made. Preliminary interpretation of coincident velocity, resistivity, and reflection sections suggests the dam rests upon a deep (>300 m) sedimentary section that interfingers with one or more volcanic flows derived from the Dry Lake Volcanic center to the east; this package has been subsequently offset by a NNW-trending fault of undetermined age and activity. Shallow resistivity sections further map glacial outwash deposits of variable thickness that cover most of the region to an average depth of 20-30 m. The ground-water level, as defined from seismic refraction sections, is depressed relative to current reservoir level and lies within sediments of the Truckee Formation that underlie the outwash deposits. The self-potential data are consistent with regional ground-water flow from south to north, as well as downhill flow from a topographic high on the right (east) abutment. The data show little indication of seepage through the dam from the reservoir, though this is likely due to the low reservoir level currently

  14. Jadwin Dam Condition Report. Dam, Outlet Works & Spillway Periodic Inspection Report Number 4. Lackawaxen River Basin, Dyberry Creek, Pennsylvania.

    DTIC Science & Technology

    1980-11-01

    AD-A098 782 ARMY ENGINEER DISTRICTE PHILADELPHIA PA FIG 13/13 JADAI N DAM CONDITION REPORT. DA, OUTLET WORKS & SPILLWAY PERIO-ETC (U) UNCLASSIFIED...HUJREALI f ANDARD, 1961, L -GOVED FOR PUBLIC RELEASE; DISTRIBUtiON UNLIMITED. LACKAWAXEN RIVER BASIN * DYBERRY CREEK, PENNSYLVANIA DClJADWIN DAM DTIC ELECTE...MAY 1 2 1981fl CONDITION REFORT E DAM , OUTLET WORKS a SPILLWAY - PERIODIC INSPECTION REPORT NO. 4 NOVEMBER 1980 DEPARTMENT OF THE ARMY 0. PHILADELPHIA

  15. 75 FR 30852 - Hydroelectric Power Development at Ridgway Dam, Dallas Creek Project, Colorado

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-02

    ...-Federal development of environmentally sustainable hydropower potential on Federal water resource projects... sustainable, low impact, or small hydropower development that avoids, reduces, or minimizes environmental... Bureau of Reclamation Hydroelectric Power Development at Ridgway Dam, Dallas Creek Project,...

  16. 6. View of Sterling Creek Marsh looking west, with dam/bridge ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. View of Sterling Creek Marsh looking west, with dam/bridge to the right, note: the water is leaving the marsh - Richmond Hill Plantation, Sterling Creek Marsh, East of Richmond Hill on Ford Neck Road, Richmond Hill, Bryan County, GA

  17. Beaver dams and channel sediment dynamics on Odell Creek, Centennial Valley, Montana, USA

    NASA Astrophysics Data System (ADS)

    Levine, Rebekah; Meyer, Grant A.

    2014-01-01

    Beaver dams in streams are generally considered to increase bed elevation through in-channel sediment storage, thus, reintroductions of beaver are increasingly employed as a restoration tool to repair incised stream channels. Here we consider hydrologic and geomorphic characteristics of the study stream in relation to in-channel sediment storage promoted by beaver dams. We also document the persistence of sediment in the channel following breaching of dams. Nine reaches, containing 46 cross-sections, were investigated on Odell Creek at Red Rock Lakes National Wildlife Refuge, Centennial Valley, Montana. Odell Creek has a snowmelt-dominated hydrograph and peak flows between 2 and 10 m3 s- 1. Odell Creek flows down a fluvial fan with a decreasing gradient (0.018-0.004), but is confined between terraces along most of its length, and displays a mostly single-thread, variably sinuous channel. The study reaches represent the overall downstream decrease in gradient and sediment size, and include three stages of beaver damming: (1) active; (2) built and breached in the last decade; and (3) undammed. In-channel sediment characteristics and storage were investigated using pebble counts, fine-sediment depth measurements, sediment mapping and surveys of dam breaches. Upstream of dams, deposition of fine (≤ 2 mm) sediment is promoted by reduced water surface slope, shear stress and velocity, with volumes ranging from 48 to 182 m3. High flows, however, can readily transport suspended sediment over active dams. Variations in bed-sediment texture and channel morphology associated with active dams create substantial discontinuities in downstream trends and add to overall channel heterogeneity. Observations of abandoned dam sites and dam breaches revealed that most sediment stored above beaver dams is quickly evacuated following a breach. Nonetheless, dam remnants trap some sediment, promote meandering and facilitate floodplain development. Persistence of beaver dam sediment

  18. Water Control Manual: Fullerton Dam, Fullerton Creek, California

    DTIC Science & Technology

    1989-05-01

    t. .0 Crest elevation .................................. ft... 290 Design nur.harge (modified Rational Method ) ...... ft... 8.4 Design...discharge (modified Rational Method ) ...... ft... 3380 Outlets: Uncontrolled Number and size .................................. 1 - 3’W x 2’H Entrance invert...Corps of Engineer dams, Brea Dam and Carbon Canyon Dam, are located near Fullerton Dam, but each dam primarily protects its separate downstream channel

  19. Beaver dams, sediment dynamics and morphological change, Odell Creek, southwest Montana

    NASA Astrophysics Data System (ADS)

    Levine, R.; Meyer, G. A.

    2012-12-01

    Beaver (Castor canadensis) were historically part of riverine systems across North America, and enhancement of beaver populations is increasingly considered an important remedy for stream degradation problems such as incised channels. However, how beaver affect fluvial processes and resulting morphology in different fluvial environments and on various channel types requires further attention. We examine the effects of beaver damming on Odell Creek, a relatively high-energy piedmont stream in the upper Missouri River basin of southwest Montana, where air photo and real-time observations indicate that main-channel dams typically persist for only a few years. Odell Creek has a basin area of 46 km2, a snowmelt-dominated hydrograph, and peak flows of 2-10 m3s-1. Odell Creek is broadly incised along most of its length within a late Pleistocene fluvial fan surface, with mean floodplain width between confining terraces of 240 m. Channel gradient declines downstream from 0.018 - 0.004, and mean channel width for 46 cross-sections is 8.1 m. We examined the geomorphic effects of active beaver dams and the persistence of dam-induced changes in nine study reaches representing downstream channel variability and variations in dam history. In-channel sediment characteristics and storage were investigated using pebble counts, fine sediment surveys and bed sediment mapping. Discharges exceeding bankfull during 2011 spring runoff breached three active dams within reaches surveyed in 2009 and 2010, allowing for repeat channel cross-section and sediment surveys. Channel geometry and sediment analyses were also conducted at several other active and breached dam sites. Volumes of fine (≤ 2 mm) sediment stored upstream of active beaver dams ranged from 40 - 135 m3. Observations and surveys of abandoned dam sites and dam breaches revealed that the majority of sediment stored upstream of beaver dams is quickly evacuated following a breach. However, while general aggradation from damming

  20. 76 FR 50170 - Pohick Creek Watershed Dam No. 8, Fairfax County, Virginia; Finding of No Significant Impact

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-12

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Natural Resources Conservation Service Pohick Creek Watershed Dam No. 8, Fairfax County, Virginia; Finding... Creek Watershed Dam No. 8, Fairfax County, Virginia. FOR FURTHER INFORMATION CONTACT: John A....

  1. Geophysical investigations of geology and structure at the Martis Creek Dam, Truckee, California

    USGS Publications Warehouse

    Bedrosian, P.A.; Burton, B.L.; Powers, M.H.; Minsley, B.J.; Phillips, J.D.; Hunter, L.E.

    2012-01-01

    A recent evaluation of Martis Creek Dam highlighted the potential for dam failure due to either seepage or an earthquake on nearby faults. In 1972, the U.S. Army Corps of Engineers constructed this earthen dam, located within the Truckee Basin to the north of Lake Tahoe, CA for water storage and flood control. Past attempts to raise the level of the Martis Creek Reservoir to its design level have been aborted due to seepage at locations downstream, along the west dam abutment, and at the base of the spillway. In response to these concerns, the U.S. Geological Survey has undertaken a comprehensive suite of geophysical investigations aimed at understanding the interplay between geologic structure, seepage patterns, and reservoir and groundwater levels. This paper concerns the geologic structure surrounding Martis Creek Dam and emphasizes the importance of a regional-scale understanding to the interpretation of engineering-scale geophysical data. Our studies reveal a thick package of sedimentary deposits interbedded with Plio-Pleistocene volcanic flows; both the deposits and the flows are covered by glacial outwash. Magnetic field data, seismic tomography models, and seismic reflections are used to determine the distribution and chronology of the volcanic flows. Previous estimates of depth to basement (or the thickness of the interbedded deposits) was 100 m. Magnetotelluric soundings suggest that electrically resistive bedrock may be up to 2500 m deep. Both the Polaris Fault, identified outside of the study area using airborne LiDAR, and the previously unnamed Martis Creek Fault, have been mapped through the dam area using ground and airborne geophysics. Finally, as determined by direct-current resistivity imaging, time-domain electromagnetic sounding, and seismic refraction, the paleotopography of the interface between the sedimentary deposits and the overlying glacial outwash plays a principal role both in controlling groundwater flow and in the distribution of the

  2. Geophysical investigations of geology and structure at the Martis Creek Dam, Truckee, California

    NASA Astrophysics Data System (ADS)

    Bedrosian, Paul A.; Burton, Bethany L.; Powers, Michael H.; Minsley, Burke J.; Phillips, Jeffrey D.; Hunter, Lewis E.

    2012-02-01

    A recent evaluation of Martis Creek Dam highlighted the potential for dam failure due to either seepage or an earthquake on nearby faults. In 1972, the U.S. Army Corps of Engineers constructed this earthen dam, located within the Truckee Basin to the north of Lake Tahoe, CA for water storage and flood control. Past attempts to raise the level of the Martis Creek Reservoir to its design level have been aborted due to seepage at locations downstream, along the west dam abutment, and at the base of the spillway. In response to these concerns, the U.S. Geological Survey has undertaken a comprehensive suite of geophysical investigations aimed at understanding the interplay between geologic structure, seepage patterns, and reservoir and groundwater levels. This paper concerns the geologic structure surrounding Martis Creek Dam and emphasizes the importance of a regional-scale understanding to the interpretation of engineering-scale geophysical data. Our studies reveal a thick package of sedimentary deposits interbedded with Plio-Pleistocene volcanic flows; both the deposits and the flows are covered by glacial outwash. Magnetic field data, seismic tomography models, and seismic reflections are used to determine the distribution and chronology of the volcanic flows. Previous estimates of depth to basement (or the thickness of the interbedded deposits) was 100 m. Magnetotelluric soundings suggest that electrically resistive bedrock may be up to 2500 m deep. Both the Polaris Fault, identified outside of the study area using airborne LiDAR, and the previously unnamed Martis Creek Fault, have been mapped through the dam area using ground and airborne geophysics. Finally, as determined by direct-current resistivity imaging, time-domain electromagnetic sounding, and seismic refraction, the paleotopography of the interface between the sedimentary deposits and the overlying glacial outwash plays a principal role both in controlling groundwater flow and in the distribution of the

  3. National Dam Safety Program. Moore Creek Dam (Inventory Number VA 16304) , James River Basin, Rockbridge County, Virginia. Phase I Inspection Report

    DTIC Science & Technology

    1980-06-01

    Moore Creek Dam is an earthfill structure about 950 feet long and 88.9 feet high. The dam is owned and maintained by the City of Lexington, Virginia. The...has nothing to do with their szability or probability of failure. 1.2.5 Ownership: City of Lexington, Virginia 1.2.6 Purpose: The dam was used as a...permit from the City . 1.2.7 Design and Construction History: Records do not show when the original dam was constructed. The dam was raised 10 feet in

  4. National Dam Safety Program. Oquaga Creek State Park Dam (Inventory Number N.Y. 783) Delaware River Basin, Broome County, New York. Phase I Inspection Report,

    DTIC Science & Technology

    1980-07-14

    D-A087 586 NEW YORK STATE DEPT OF ENVIRONMENTAL CONSERVATON ALSANY /S 13/13 NATIONAL DAM SAFETY PROGRAM. OGUAGA CREEK STATE PARK DAM (INVEN-ETC() jUi...State Department of Environmental Con- 14 July 1980 servatlon/ 50 Wolf Road 1 NUMBER OF PAGES 14. MONITORING AGENCY NAME & AODRESS(I1 different from...George Koch Chief, Dam Safety Section New York State Department of Environmental Conservation NY License No. 45937 Approved By

  5. Construction of Tremie Concrete Cutoff Wall, Wolf Creek Dam, Kentucky.

    DTIC Science & Technology

    1980-09-01

    its maximum pool, the lake contains 6,100,000 acre-ft of water . 3. Construction of the dam was begun in 1941, but work was dis- continued for 3 years...concrete section includes a gated spillway with 10 radial gates having a rated discharge of 553,000 cfs. The power plant has an installed capacity of...i. SWT~p, SLOPE PROTWCTIONI Z’ SAND a $RAVEL FILTR BLANKET 800 c~iry 11 700A -*0 *0 *0 *0 *0 108 28300 b.4 Section0 Figur 3.Poiead eto iwso a0ad uof

  6. Preliminary results of a dam-removal analysis on brewster creek near st. Charles, Illinois, 2002-2004

    USGS Publications Warehouse

    Kosky, K.M.; Straub, T.D.; Roseboom, D.P.; Johnson, G.P.; ,

    2004-01-01

    The benefits of gradually removing a dam (through multiple notches) are to reduce the total project cost and reduce possible environmental effects by allowing the impounded sediment to slowly move downstream, and a stable stream and revegetated floodplain to form upstream. Notching, in this study of a dam on Brewster Creek, near St. Charles, Illinois, involves cutting a given height (in five 12-18 inch notches over approximately a 9 month period) across the length (or some portion of the length) of the dam. Brewster Creek is a tributary of the Fox River in northeastern, Illinois. Sediment, dissolved oxygen, and geomorphic response are being monitored before, during, and after a gradual (notching) removal of the dam. The study area includes the creek reach immediately below the dam and above the lake. Preliminary data analysis indicate that during and after the removal, the relation between the sediment transported to the study area from upstream and the sediment transported out of the study area remained relatively stable. This preliminary result indicates that the notching system created a fairly slow and predictable sediment transport response to storms, when compared to known upstream sediment loads. This result corresponds to the slow geomorphic response at the site since inception of the notching sequence in 2003. The creek responded to the five notches removed over the course of 9 months by gradually cutting through the former lakebed sediment to establish a meandering channel. Notchings did not appreciably affect dissolved oxygen concentrations in Brewster Creek.

  7. National Dam Inspection Program. Upper Rock Creek Watershed Site Number 1 Potomac River Basin (Lake Bernard Frank) Montgomery County, Maryland (NDI-Number-MD-0050) Phase I Inspection Report.

    DTIC Science & Technology

    1979-08-01

    NAME OF DAM: Upper Rock Creek Watershed Site #1 (Lake Bernard Frank) STATE: Maryland COUNI: Montgomery STREAM: Upper Rock Creek DATE OF INSPECTION...the condition of the dam-at Upper Rock Creek Site #1 (Lake Bernard Frank) Is assessed to be good. This dam is an intermediate size class I structure...F - Geology Report Pv *1i 5 i PHASE I INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM UPPER ROCK CREEK UATERSHED SITE :1 (LAKE BERNARD FRANK) NOI

  8. National Program of Inspection of Non-Federal Dams, Tennessee. (Inventory Number TN 11101), Cumberland River Basin, Jennings Creek Watershed Dam Number 16 near North Springs, Macon County, Tennessee. Phase I Investigation Report,

    DTIC Science & Technology

    1981-06-01

    List Visual Inspection of Earth Dams Department of Conservation Division of Water Resources Name of Dan Jennings Creek Watershed Dam # 16 County Macon...Date of Inspection January 8, 1981 ID # - State 56-7001 Federal TN11101 Type of Dam Earth Hazard Category-Federal High State Weather -Partly cloudy...Storage Volume 359 acre-feet (Normal Pool to Dam Crest) G. Surface Area at Dam Crest 23.4 acres Emergency Spillway: A. Type Saddle, trapezoidal, earth , rock

  9. 75 FR 71426 - Blue Creek Wind Farm, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-23

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Blue Creek Wind Farm, LLC; Supplemental Notice That Initial Market-Based... supplemental notice in the above-referenced proceeding, of Blue Creek Wind Farm, LLC's application for...

  10. National Dam Inspection Program. Saxe Pond Dam (NDI I.D. Number PA-729, DER ID Number 8-10) Susquehanna River Basin. North Branch Mehoopany Creek, Bradford County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1981-04-01

    formations and the Catskill Formation between them belong to the Susquehanna Group of Upper Devonian Age. They consist of sandstones, shales , and...1; 1. I)If *~~~~~ C iy GEOLOGIC MAP OF AREA AROUND SAXE POND DAM, ROSCOE BURGESS DAM AND THE BIRCH CREEK DAM SCALE 1:250,000 PENNSvVANIAN DEVONIAN

  11. Ecogeomorphic feedbacks in regrowth of travertine step-pool morphology after dam decommissioning, Fossil Creek, Arizona

    NASA Astrophysics Data System (ADS)

    Fuller, Brian M.; Sklar, Leonard S.; Compson, Zacchaeus G.; Adams, Kenneth J.; Marks, Jane C.; Wilcox, Andrew C.

    2011-03-01

    The linkages between fluvial geomorphology and aquatic ecosystems are commonly conceptualized as a one-way causal chain in which geomorphic processes create the physical template for ecological dynamics. In streams with a travertine step-pool morphology, however, biotic processes strongly influence the formation and growth of travertine dams, creating the potential for numerous feedbacks. Here we take advantage of the decommissioning of a hydroelectric project on Fossil Creek, Arizona, where restoration of CaCO 3-rich baseflow has triggered rapid regrowth of travertine dams, to explore the interactions between biotic and abiotic factors in travertine morphodynamics. We consider three conceptual frameworks, where biotic factors independently modulate the rate of physical and chemical processes that produce travertine dams; combine with abiotic factors in a set of feedback loops; and work in opposition to abiotic processes, such that the travertine step-pool morphology reflects a dynamic balance between dominantly-biotic constructive processes and dominantly-abiotic destructive processes. We consider separately three phases of an idealized life cycle of travertine dams: dam formation, growth, and destruction by erosive floods. Dam formation is catalyzed by abiotic factors (e.g. channel constrictions, and bedrock steps) and biotic factors (e.g. woody debris, and emergent vegetation). From measurements of changes over time in travertine thickness on a bedrock step, we find evidence for a positive feedback between flow hydraulics and travertine accrual. Measurements of organic content in travertine samples from this step show that algal growth contributes substantially to travertine accumulation and suggest that growth is most rapid during seasonal algal blooms. To document vertical growth of travertine dams, we embedded 252 magnets into nascent travertine dams, along a 10 km stretch of river. Growth rates are calculated from changes over time in the magnetic field

  12. Blue Creek Winter Range : Wildlife Mitigation Project : Preliminary Environmental Assessment.

    SciTech Connect

    United States. Bonneville Power Administration; United States. Bureau of Indian Affairs; Spokane Tribe of the Spokane Reservation, Washington

    1994-11-01

    This preliminary Environmental Assessment examines the potential environmental effects of securing land and conducting wildlife habitat enhancement and long term management activities within the boundaries of the Spokane Indian Reservation. Four proposed activities are analyzed: Habitat protection; Habitat enhancement; Operation and maintenance; and Monitoring and evaluation. The proposed action is intended to meet the need for mitigation of wildlife and wildlife habitat adversely affected by the construction of Grand Coulee Dam and its reservoir.

  13. Predicted Effects of Hydropower Uprate on Trout Habitat in the Cumberland River, Downstream of Wolf Creek Dam, Kentucky

    DTIC Science & Technology

    1988-08-01

    is useful for predicting flow patterns in simple, straight channels. Flow patterns at cross sections located on bends or with complex channel...URN), regulates flows in the Cumberland River at Wolf Creek Dam to provide for hydropower generation and flood control. The ORN is considering...Instream Flow Incremental Methodology concepts. The relative downstream habitat impacts of hydro- power uprate are assessed by contrasting existing

  14. National Dam Safety Program. Lake Como Dam (DE 00028), Delaware River Basin, Mill Creek, Kent County, Delaware. Phase I Inspection Report.

    DTIC Science & Technology

    1980-11-01

    J J WILLIAMS DACWl1-80- O -0013 uNCLASSIFIED DAEN/NAP-53842/DEOOS2B-BO/ NL LUIIIIIIEEEE IhIIIIIIIIIIIl IIIIIIIIIIIIIu IIIIIIIIIIIIII EIEIIIIIIIII...PHILADELPHIA PA 1q106 15:5 EST IMGMCOMP S.TO REPLY BY MAILGRAM. SEE RFVERSE SIDE FOR WFSTERN UNION S lOLL FI , ADA096 0bb O * BRIEN AND GERE ENGINEERS INC...Lak -e Cowm nlasfe Dam (DE 00028), Del~iturre River Basin, Un. O classifieINdONRIN M4ill Creek, Kent County, Delare 15m SCEDLEIIAIN/ONRD Phase I

  15. 33 CFR 208.29 - Arbuckle Dam and Lake of the Arbuckles, Rock Creek, Okla.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Arbuckles, Rock Creek, Okla. 208.29 Section 208.29 Navigation and Navigable Waters CORPS OF ENGINEERS... Arbuckles, Rock Creek, Okla. The Bureau of Reclamation, or its designated agent, shall operate the Arbuckle... in excess of bankfull on Rock Creek downstream of the lake and on the Washita River, from the...

  16. 33 CFR 208.29 - Arbuckle Dam and Lake of the Arbuckles, Rock Creek, Okla.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Arbuckles, Rock Creek, Okla. 208.29 Section 208.29 Navigation and Navigable Waters CORPS OF ENGINEERS... Arbuckles, Rock Creek, Okla. The Bureau of Reclamation, or its designated agent, shall operate the Arbuckle... in excess of bankfull on Rock Creek downstream of the lake and on the Washita River, from the...

  17. 33 CFR 208.29 - Arbuckle Dam and Lake of the Arbuckles, Rock Creek, Okla.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Arbuckles, Rock Creek, Okla. 208.29 Section 208.29 Navigation and Navigable Waters CORPS OF ENGINEERS... Arbuckles, Rock Creek, Okla. The Bureau of Reclamation, or its designated agent, shall operate the Arbuckle... in excess of bankfull on Rock Creek downstream of the lake and on the Washita River, from the...

  18. 33 CFR 208.29 - Arbuckle Dam and Lake of the Arbuckles, Rock Creek, Okla.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Arbuckles, Rock Creek, Okla. 208.29 Section 208.29 Navigation and Navigable Waters CORPS OF ENGINEERS... Arbuckles, Rock Creek, Okla. The Bureau of Reclamation, or its designated agent, shall operate the Arbuckle... in excess of bankfull on Rock Creek downstream of the lake and on the Washita River, from the...

  19. 33 CFR 208.29 - Arbuckle Dam and Lake of the Arbuckles, Rock Creek, Okla.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Arbuckles, Rock Creek, Okla. 208.29 Section 208.29 Navigation and Navigable Waters CORPS OF ENGINEERS... Arbuckles, Rock Creek, Okla. The Bureau of Reclamation, or its designated agent, shall operate the Arbuckle... in excess of bankfull on Rock Creek downstream of the lake and on the Washita River, from the...

  20. Water-quality study of Tulpehocken Creek, Berks County, Pennsylvania, prior to impoundment of Blue Marsh Lake

    USGS Publications Warehouse

    Barker, James L.

    1977-01-01

    Blue Marsh Lake is planned as a multipurpose impoundment to be constructed on Tulpehocken Creek near Bernville, Berks County, Pennsylvania. Prior to construction, samples of water, bed material, and soil were collected throughout the impoundment site to determine concentrations of nutrients, insecticides, trace metals, suspended sediment, and bacteria. Analyses of water suggest the Tulpehocken Creek basin to be a highly fertile environment. Nitrogen and phosphorus concentrations near the proposed dam site had median values of 4.5 and 0.13 mg/L, respectively. Suspended sediment discharges average between 100 and 200 tons (90.7 to 181.4 metric tons) per day during normal flows but may exceed 10,000 tons (9,070 metric tons) per day during storm runoff. Highest yields were measured during winter and early spring. Concentrations range from 3 mg/L to more than 500 mg/L. Bed material samples contain trace quantities of aldrin, DDT, DDD, DDE, dieldrin, and chlordane. Polychlorinated biphyenyls (PCB's) ranged from 10 to 100 μg/kg. Soils at the impoundment site are of average fertility. However, the silt loam texture is ideal for attachment and growth of aquatic plants. Bacteria populations indicative of recent fecal contamination are prevalent in the major inflows to the proposed lake. Fecal Coliform exceeded the standards recommended by the Federal Water Pollution Administration Committee on Water Quality Criteria for public water supply in 29 percent of the monthly samples, and exceeded the recommended public bathing waters standard in 83 percent of the samples collected from June to September. Arsenic from an industrial waste was found in the water, suspended sediment, and bed material of Tulpehocken Creek in concentrations of 0 to 30 μg/l, 2 to 879 μg/l, and 1 to 79 μg/g, respectively. It represents a potential environmental hazard; however, the measured concentrations are less than that known to be harmful to man, fish, or wildlife, according to published water

  1. Interactions between geomorphology and ecosystem processes in travertine streams: Implications for decommissioning a dam on Fossil Creek, Arizona

    NASA Astrophysics Data System (ADS)

    Marks, Jane C.; Parnell, Roderic; Carter, Cody; Dinger, Eric C.; Haden, G. Allen

    2006-07-01

    Travertine deposits of calcium carbonate can dominate channel geomorphology in streams where travertine deposition creates a distinct morphology characterized by travertine terraces, steep waterfalls, and large pools. Algae and microorganisms can facilitate travertine deposition, but how travertine affects material and energy flow in stream ecosystems is less well understood. Nearly a century of flow diversion for hydropower production has decimated the natural travertine formations in Fossil Creek, Arizona. The dam will be decommissioned in 2005. Returning carbonate-rich spring water to the natural stream channel should promote travertine deposition. How will the recovery of travertine affect the ecology of the creek? To address this question, we compared primary production, decomposition, and the abundance and diversity of invertebrates and fish in travertine and riffle/run reaches of Fossil Creek, Arizona. We found that travertine supports higher primary productivity, faster rates of leaf litter decomposition, and higher species richness of the native invertebrate assemblage. Observations from snorkeling in the stream indicate that fish density is also higher in the travertine reach. We postulate that restoring travertine to Fossil Creek will increase stream productivity, rates of litter processing, and energy flow up the food web. Higher aquatic productivity could fundamentally shift the nature of the stream from a sink to a source of energy for the surrounding terrestrial landscape.

  2. Hydrologic data, Colorado River and major tributaries, Glen Canyon Dam to Diamond Creek, Arizona, water years 1990-95

    USGS Publications Warehouse

    Rote, John J.; Flynn, Marilyn E.; Bills, D.J.

    1997-01-01

    The U.S. Geological Survey collected hydrologic data at 12 continuous-record stations along the Colorado River and its major tributaries between Glen Canyon Dam and Diamond Creek. The data were collected from October 1989 through September 1995 as part of the Bureau of Reclamation's Glen Canyon Environmental Studies. The data include daily values for streamflow discharge, suspended-sediment discharge, temperature, specific conductance, pH, and dissolved-oxygen concentrations, and discrete values for physical properties and chemical constituents of water. All data are presented in tabular form.

  3. National Dam Inspection Program. Lake Waukomis Dam (MO 10691) Tributary of Line Creek, Platte County, Missouri. Phase I Inspection Report.

    DTIC Science & Technology

    1978-08-01

    Dams. This report assesses the general condition of the dam with respect to safety, based on available data and on visual inspection, to determine if the...Usully a vertical pipe or box, where water flows over th, open top aad free -falli to theo conduit le.vel. Dbanknent (Enb) - The earth/rock fill da...at the danstream end of the oul:l:!t o .ks ot" spillway, design-ed to dissipate the flow energy and rediuo erosion. Shoulder - Used to designate a

  4. Effects of flow alterations on trout, angling, and recreation in the Chattahoochee River between Buford Dam and Peachtree Creek

    USGS Publications Warehouse

    Nestler, John M.; Milhouse, Robert T.; Troxel, Jay; Fritschen, Janet A.

    1985-01-01

    In 1974 county governments in the Atlanta vicinity realized that demands on the Chattahoochee River for water supply plus the streamflow required for water quality nearly equaled the minimum flow in the river. Increased demands for water supply in the following years could not be supplied under the then existing flow regime in the river. In response to the anticipated shortage of water, the Atlanta Regional Commission, a multicounty agency responsible for comprehensive regional planning in the Atlanta region, was contracted to prepare water demand projections to the year 2010 and identify alternatives for meeting projected water demands. The results of this study are published in an extensive final report, the Metropolitan Atlanta Area Water Resources Management Study (1981). Requests for copies should be directed to the District Engineer, Savannah District. Many of the identified alternatives to increase future water supply for the Atlanta area would result in modifications to the present flow regime within the Chattahoochee River between Buford Dam (river mile 348.3) and its confluence with Peachtree Creek (river mile 300.5). The present preferred alternative is construction of a reregulation dam at about river mile 342. The proposed reregulation dam would release a much more constant flow than the peaking flows presently released from Buford Dam (generally, a maximum release of approximately 9000 cfs or minimum release of about 550 cfs) by storing the generation releases from Buford Dam for gradual release during non-generation periods. The anticipated minimum release from the rereg dam would he approximately 1U5U cfs (based on contractual obligations to the Southeast Power Administration to supply a minimum of 11 hours of peaking power per week from Buford Dam). The average annual release from the proposed reregulation dam into the Chattahoochee River would be approximately 2000 cfs (based on USGS flow records) and the median release would he approximately 1500

  5. National Dam Inspection Program. Forest Lake Dam (NDI ID Number PA-00968, DER ID Number 58-21), Susquehanna River Basin, Forest Lake Creek, Susquehanna County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1981-05-01

    CREEK Unannounced 11Justification SUSQUEHANNA COUNTY, PENNSYLVANIA Distribution/gf Avallability Codes FOREST L A K E D A M Avail and/or Dist Special Dist...limited to, overtopping of the dam and the development of piping conditions at the toe of the dam. (2) When warnings of storms of major proportions are...spillway provided for the facility. A service spillway, consisting of two 15-inch diameter, 27-foot-long Corrugated Metal Pipes (CMP), is located at

  6. National Dam Inspection Program. Perrins Marsh Dam (NDI I.D. PA-0886, DER I.D. 066-005), Susquehanna River Basin Whitelock Creek, Wyoming County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1981-01-01

    square miles and impounds a reservoir with a surface area of 84 acres at normal pool level. The flood discharge facilities for the dam consist of the...of the creek. The stream flows adjacent to a rural residential area for approximately one mile, and then discharges to an essentially uninhabited...valley. It is estimated that a failure of this dam would likely cause damage to the downstream bridges and property in the rural residential area . Loss of

  7. Effects of removing Good Hope Mill Dam on selected physical, chemical, and biological characteristics of Conodoguinet Creek, Cumberland County, Pennsylvania

    USGS Publications Warehouse

    Chaplin, Jeffrey J.; Brightbill, Robin A.; Bilger, Michael D.

    2005-01-01

    The implications of dam removal on channel characteris-tics, water quality, benthic invertebrates, and fish are not well understood because of the small number of removals that have been studied. Comprehensive studies that document the effects of dam removal are just beginning to be published, but most research has focused on larger dams or on the response of a sin-gle variable (such as benthic invertebrates). This report, pre-pared in cooperation with the Conodoguinet Creek Watershed Association, provides an evaluation of how channel morphol-ogy, bed-particle-size distribution, water quality, benthic inver-tebrates, fish, and aquatic habitat responded after removal of Good Hope Mill Dam (a small 'run of the river' dam) from Conodoguinet Creek in Cumberland County, Pa. Good Hope Mill Dam was a 6-foot high, 220-foot wide concrete structure demolished and removed over a 3-day period beginning with the initial breach on November 2, 2001, at 10:00 a.m. eastern standard time. To isolate the effects of dam removal, data were collected before and after dam removal at five monitoring stations and over selected reaches upstream, within, and downstream of the impoundment. Stations 1, 2, and 5 were at free-flowing control locations 4.9 miles upstream, 2.5 miles upstream, and 5 miles downstream of the dam, respec-tively. Stations 3 and 4 were located where the largest responses were anticipated, 115 feet upstream and 126 feet downstream of the dam, respectively Good Hope Mill Dam was not an effective barrier to sedi-ment transport. Less than 3 inches of sediment in the silt/clay-size range (less than 0.062 millimeters) coated bedrock within the 7,160-foot (1.4-mile) impoundment. The bedrock within the impoundment was not incised during or after dam removal, and the limited sediment supply resulted in no measurable change in the thalweg elevation downstream of the dam. The cross-sec-tional areas at stations 3 and 4, measured 17 days and 23 months after dam removal, were within

  8. The 1980 Polallie Creek debris flow and subsequent dam-break flood, East Fork Hood River basin, Oregon

    USGS Publications Warehouse

    Gallino, Gary L.; Pierson, Thomas C.

    1984-01-01

    At approximately 9 p.m. on December 25, 1980, intense rainfall and extremely wet antecedent conditions combined to trigger a landslide of approximately 5,000 cubic yards at the head of Polallie Creek Canyon on the northeast flank of Mount Hood. The landslide was transformed rapidly into a debris flow, which surged down the channel at velocities between about 40 and 50 ft/s, eroding and incorporating large volumes of channel fill and uprooted vegetation. When it reached the debris fan at the confluence with the East Fork Hood River, the debris flow deposited approximately 100,000 cubic yards of saturated, poorly sorted debris to a maximum thickness of 35 ft, forming a 750-ft-long temporary dam across the channel. Within approximately 12 minutes, a lake of 85 acre-feet formed behind the blockage, breached the dam, and sent a flood wave down the East Fork Hood River. The combined debris flow and flood resulted in one fatality and over $13 million in damage to a highway, bridges, parks, and a water-supply pipeline. Application of simple momentum- and energy-balance equations, and uniform flow equations resulted in debris flow peak discharges ranging from 50,000 ft3/s to 300,000 ft3/s at different locations in the Polallie Creek Canyon. This wide range is attributed to temporary damming at the boulder- and log-rich flow front in narrow, curving reaches of the channel. When the volume of the solid debris was subtracted out, assuming a minimum peak debris-flow discharge of 100,000 ft3/s at the canyon mouth, a minimum peak-water discharge of 40,000 ft3/s was obtained. A computer dam-break model simulated peak flow for the outbreak flood on the East Fork Hood River in the range of 20,000 to 30,000 ft3/s using various breach shapes and durations of breach between 5 and 15 minutes. A slope conveyance computation 0.25 mi downstream from the dam gave a peak water discharge (solids subtracted out) for the debris-laden flood of 12,000 to 20,000 ft3/s, depending on the channel

  9. National Dam Inspection Program. Lake of the Four Seasons Dam (NDS-ID Number PA-568, DER-ID Number 40-225) Susquehanna River Basin, Oley Creek, Luzerne County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1980-09-01

    A0-AU91 266 KIMBALL (L ROBERT) AND ASSOCIATES EBENSBURG PA F/G 13/13 NATIONAL JAM INSPECTION PROGRAM. LAKE OF THE FOUR SEASONS DAM (--ETC(U) SEP 80 R...PENNSYLVANI LAKE OF THE FOUR SEASONS DA NDS ID NO. PA-568 DER ID NO. 40-225 DIVERSIFIED MORTGAGE INVESTORS INC. PHASE I INSPECTION REPORT v- NATIONAL DAM...OLEY CREEK LUZERNE COUNTY ~ IEPEN NSYL VAN IA-,, LAKE OF THE FOUR SEASONS DAM li0 L __NOS4D14. PA-56! DER 40. 4Y225) A:HASE JINSPE TIO LEP 5 NATIONAL

  10. Specific Conductance in the Colorado River between Glen Canyon Dam and Diamond Creek, Northern Arizona, 1988-2007

    USGS Publications Warehouse

    Voichick, Nicholas

    2008-01-01

    The construction of Glen Canyon Dam, completed in 1963, resulted in substantial physical and biological changes to downstream Colorado River environments between Lake Powell and Lake Mead - an area almost entirely within Grand Canyon National Park, Ariz. In an effort to understand these changes, data have been collected to assess the condition of a number of downstream resources. In terms of measuring water quality, the collection of specific-conductance data is a cost-effective method for estimating salinity. Data-collection activities were initially undertaken by the Bureau of Reclamation's Glen Canyon Environmental Studies (1982-96); these efforts were subsequently transferred to the U.S. Geological Survey's Grand Canyon Monitoring and Research Center (1996 to the present). This report describes the specific-conductance dataset collected for the Colorado River between Glen Canyon Dam and Diamond Creek from 1988 to 2007. Data-collection and processing methods used during the study period are described, and time-series plots of the data are presented. The report also includes plots showing the relation between specific conductance and total dissolved solids. Examples of the use of specific conductance as a natural tracer of parcels of water are presented. Analysis of the data indicates that short-duration spikes and troughs in specific-conductance values lasting from hours to days are primarily the result of flooding in the Paria and Little Colorado Rivers, Colorado River tributaries below Glen Canyon Dam. Specific conductance also exhibits seasonal variations owing to changes in the position of density layers within the reservoir; these changes are driven by inflow hydrology, meteorological conditions, and background stratification. Longer term trends in Colorado River specific conductance are reflective of climatological conditions in the upper Colorado River Basin. For example, drought conditions generally result in an increase in specific conductance in Lake

  11. Determination of premining geochemical background and delineation of extent of sediment contamination in Blue Creek downstream from Midnite Mine, Stevens County, Washington

    USGS Publications Warehouse

    Church, Stanley E.; Kirschner, Frederick E.; Choate, LaDonna M.; Lamothe, Paul J.; Budahn, James R.; Brown, Zoe Ann

    2008-01-01

    Geochemical and radionuclide studies of sediment recovered from eight core sites in the Blue Creek flood plain and Blue Creek delta downstream in Lake Roosevelt provided a stratigraphic geochemical record of the contamination from uranium mining at the Midnite Mine. Sediment recovered from cores in a wetland immediately downstream from the mine site as well as from sediment catchments in Blue Creek and from cores in the delta in Blue Creek cove provided sufficient data to determine the premining geochemical background for the Midnite Mine tributary drainage. These data provide a geochemical background that includes material eroded from the Midnite Mine site prior to mine development. Premining geochemical background for the Blue Creek basin has also been determined using stream-sediment samples from parts of the Blue Creek, Oyachen Creek, and Sand Creek drainage basins not immediately impacted by mining. Sediment geochemistry showed that premining uranium concentrations in the Midnite Mine tributary immediately downstream of the mine site were strongly elevated relative to the crustal abundance of uranium (2.3 ppm). Cesium-137 (137Cs) data and public records of production at the Midnite Mine site provided age control to document timelines in the sediment from the core immediately downstream from the mine site. Mining at the Midnite Mine site on the Spokane Indian Reservation between 1956 and 1981 resulted in production of more than 10 million pounds of U3O8. Contamination of the sediment by uranium during the mining period is documented from the Midnite Mine along a small tributary to the confluence of Blue Creek, in Blue Creek, and into the Blue Creek delta. During the period of active mining (1956?1981), enrichment of base metals in the sediment of Blue Creek delta was elevated by as much as 4 times the concentration of those same metals prior to mining. Cadmium concentrations were elevated by a factor of 10 and uranium by factors of 16 to 55 times premining

  12. Geomorphic and Salmon Habitat Response to Dam Removal with Minimal Constraints to Channel Evolution, Wa'atch Creek, Western Washington, U.S.A

    NASA Astrophysics Data System (ADS)

    Ritchie, A. C.; Shellberg, J. G.

    2010-12-01

    Dam removal has become an important component of aquatic ecosystem restoration, but studies documenting the physical and ecological response to dam removal across a range of human modified hydroclimatic and physiographic settings are still lacking. This research documents channel geomorphic response and fine sediment storage in salmon spawning gravels after removing two derelict dams (largest 6m) from Wa’atch Creek, located in the temperate coastal-marine zone of the Pacific Northwest, USA. After removing dam sheet pile and earthen fill, natural river processes including sediment flushing were allowed occur. Technical engineering solutions were avoided, unlike comparably sized dam removals in western Washington that over-engineered channel stability. However, two-hundred large-logs (LWD) were placed unanchored below the dam sites and throughout the reservoir before drawdown to sort and store sediment and provide future habitat complexity. Initial sedimentation impacts were severe following dam removal, temporarily smothering the bed of the creek with a fine sediment slurry (fluid mud) from dam to delta, killing aquatic biota, and covering spawning gravels with inhospitable levels of fine sediment. Subsequently, several large floods within the first year (max 10-yr recurrence interval) flushed the channel sediment slurry and over half (11,000 m^3) of the fine sediment stored in the reservoir out to sea. Coarse sediment aggraded immediately below the dam where wood was placed in the channel, while channel incision occurred through the reservoir and into tributaries, both diminishing away from the disturbance center. Channel changes were greatest immediately following removal due to high stream power, steep energy slope and saturated unconsolidated alluvium. The rate of change in sediment volume diminished over time (2003 to 2008) due to sediment consolidation, vegetation colonization, and a reduction in energy slope. After reservoir and channel flushing, fine

  13. 33 CFR 208.27 - Fort Cobb Dam and Reservoir, Pond (Cobb) Creek, Oklahoma.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., flows shall not exceed a 13.0-foot stage (1,300 cfs) on the USGS gage on Pond (Cobb) Creek near Fort Cobb, Oklahoma, river mile 5.0; a 19.0-foot stage (6,000 cfs) on the USGS gage on the Washita River near Anadarko, Oklahoma, river mile 305.0; or a 19.0-foot stage on the USGS gage near Bradley, Oklahoma...

  14. Quality of water in an inactive uranium mine and its effects on the quality of water in Blue Creek, Stevens County, Washington, 1984-85. Water Resources Investigation

    SciTech Connect

    Sumioka, S.S.

    1991-01-01

    The purpose of the report is to present the results of a study done to determine (1) the monthly and annual water budgets and probable variation in runoff for the drainage basin in which the mine is located; (2) if precipitation is the source of low pH water found in pit 3 and the retention pond; (3) the quality of water in pits 3 and 4, the retention pond, streamflow from the basin, Blue Creek upstream and downstream of the point the drainage enters, and near the mouth of Blue Creek; (4) the quality of ground water discharged from the basin into Blue Creek; and (5) the daily mean values of discharge, water temperature, specific conductance, and pH for mine drainage from the basin, Blue Creek upstream and downstream of the mine drainage, and near the mouth of Blue Creek. The report also describes a potential water-quality monitoring program that would allow the determination of annual loads of selected chemical constituents entering Blue Creek from the mine basin and information about the type of ground-water tracers and procedures needed to examine flow paths near the retention pond.

  15. Wolf Creek Dam - Concrete Diaphragm Walls. Final Completion Reports. Phases 1 and 2

    DTIC Science & Technology

    1988-12-01

    lC’i/Pg of /0/Duo "wer n,-, to. hallco~ 00/ prsv ,de a DAM ,nofwritten otice 9000r fo , to orkig so’d. roes. pa- in1,00 SWITCHYARD DIAPHRAGM WALL Si 1...IISFO E O 560 1!6 540 520 520 EO IP-0BAE OF DIAPHAG WL 500 lOX LMIT APROX LIMIITS OIF GROU LN 460 __ - - - I--460 2--U S ,4 3.00 2E-50 2-00 1+50 1+0...77, (HU SHFO ROCX 2. I > I9 "k GO _I _ .. . . . I I AGOIAXS OF DAM ,--7 El 77904 EL 7780G EL77350 0* I 15I 4 0 + 0 I I . -I- - 0 . . EO 7 I ST OSRI

  16. National Dam Safety Program. Structure Number 1 - Williams Creek Dam (MO 10728), Missouri - Kansas City Basin, Clay County, Missouri. Phase I Inspection Report.

    DTIC Science & Technology

    1978-08-01

    The flows over the dam crest were based on the broad - crested weir equation Q = CLH 3/2 , where H is the head on the dam crest ; the coefficient C, which...vegetated with grasses. Rough measurements along the crest of the dam indicate several places where the elevations are lower than the ends of the dam...the phreatic lime or other seepage on the downstream slope or along the toe of the dam. Rough measurements of the profiles of the crest of the dam and

  17. National Dam Inspection Program. Saw Creek Club Dam. Delaware River Basin, Saw Creek, Pike County, Pennsylvania (NDI ID Number PA-00764, DER ID Number 52-7), Saw Creek Club, Inc. Phase I Inspection Report,

    DTIC Science & Technology

    1980-02-01

    Mountain , which is a part of the Pocono Plateau Escarpment. The escarpment is well-defined southwestward from Camelback Mountain , but is more irregular...the Catskill Formation. These members include sand-stones, siltstone, and shales of the Towamensing Member; sandstone, siltstone and shale of the...Club Dam is underlain by the Walcksville Member of the Catskill Formation. The Walcksville Member is a cycle sequence of sandstones and shales with

  18. Devitrification of the Carlton Rhyolite in the Blue Creek Canyon area, Wichita Mountains, southwestern Oklahoma

    SciTech Connect

    Bigger, S.E. . Dept. of Geology); Hanson, R.E. . Dept. of Geology)

    1993-02-01

    The Cambrian Carlton Rhyolite is a sequence of lava flows and ignimbrites extruded in association with rifting in the Southern Oklahoma aulacogen. Rhyolite exposed in the Blue Creek Canyon area consists of a single, originally glassy, porphyritic lava flow > 300 m thick. Abundant flow banding is deformed by variably oriented flow folds present on both outcrop and thin-section scales. A variety of complex texture record the cooling, degassing, and devitrification history of the flow. Acicular Fe, Ti-oxide crystallites aligned in the flow banding document nucleation and limited crystal growth during flow. Spherical microvesicles and larger lithophysal cavities up to 10 cm long crosscut flow banding, showing that degassing continued after flow had ceased. Pseudomorphs of quartz after cristobalite and tridymite are present on cavity walls and are products of high-T vapor-phase crystallization. Devitrification textures overprint the flow banding and developed in two stages. Primary devitrification occurred during initial cooling and formed spherulitic intergrowths in distinct areas bound by sharp devitrification fronts. Spherulites nucleated on phenocrysts, vesicles, and flow bands and show evidence of multiple episodes of growth. Rhyolite outside of the devitrification fronts initially remained glassy but underwent later, low-T hydration to form perlitic texture, which was followed by prolonged secondary devitrification to form extremely fine-grained, equigranular quartzofeldspathic mosaics. Snowflake texture (micropoikilitic quartz surrounding randomly oriented alkali feldspar) developed during both primary and secondary devitrification. Spherical bodies up to 30 cm across are present in discrete horizons within the flow and weather out preferentially from the host rhyolite.

  19. Hydrology of Prairie Dog Creek Valley, Norton Dam to state line, north-central Kansas

    USGS Publications Warehouse

    Stullken, L.E.

    1984-01-01

    Development of water resources has been a major factor in the economy of Prairie Dog Creek Valley in north-central Kansas. Releases from Norton Reservoir to the Almena Irrigation District averaged 6,900 acre-feet per year during 1967-76. The number of irrigation wells increased from 4 to 147 during 1947-78. Ground water in the valley is derived mostly from the alluvial aquifer. The effects of irrigation on the aquifer are indicated by water-level changes. The water in storage increased from 130,000 to 136,000 acre-feet during 1947-78 due to recharge from surface-water irrigation. A steady-state model of the aquifer prior to irrigation (1947) indicated that most recharge was from precipitation (88 percent) and most discharge was to streams (54 percent) and reparian transpiration (26 percent). Although aquifer storage increased in this area, storage generally decreased in other areas of western Kansas. (USGS)

  20. Fish population and habitat analysis in Buck Creek, Washington, prior to recolonization by anadromous salmonids after the removal of Condit Dam

    USGS Publications Warehouse

    Allen, M. Brady; Burkhardt, Jeanette; Munz, Carrie; Connolly, Patrick J.

    2012-01-01

    We assessed the physical and biotic conditions in the part of Buck Creek, Washington, potentially accessible to anadromous fishes. This creek is a major tributary to the White Salmon River upstream of Condit Dam, which was breached in October 2011. Habitat and fish populations were characterized in four stream reaches. Reach breaks were based on stream gradient, water withdrawals, and fish barriers. Buck Creek generally was confined, with a single straight channel and low sinuosity. Boulders and cobble were the dominant stream substrate, with limited gravel available for spawning. Large-cobble riffles were 83 percent of the available fish habitat. Pools, comprising 15 percent of the surface area, mostly were formed by bedrock with little instream cover and low complexity. Instream wood averaged 6—10 pieces per 100 meters, 80 percent of which was less than 50 centimeters in diameter. Water temperature in Buck Creek rarely exceeded 16 degrees Celsius and did so for only 1 day at river kilometer (rkm) 3 and 11 days at rkm 0.2 in late July and early August 2009. The maximum temperature recorded was 17.2 degrees Celsius at rkm 0.2 on August 2, 2009. Minimum summer discharge in Buck Creek was 3.3 cubic feet per second downstream of an irrigation diversion (rkm 3.1) and 7.7 cubic feet per second at its confluence with the White Salmon River. Rainbow trout (Oncorhynchus mykiss) was the dominant fish species in all reaches. The abundance of age-1 or older rainbow trout was similar between reaches. However, in 2009 and 2010, the greatest abundance of age-0 rainbow trout (8 fish per meter) was in the most downstream reach. These analyses in Buck Creek are important for understanding the factors that may limit fish abundance and productivity, and they will help identify and prioritize potential restoration actions. The data collected constitute baseline information of pre-dam removal conditions that will allow assessment of changes in fish populations now that Condit Dam has

  1. U/Th geochronology of hydrothermal activity in Long Valley caldera: Little Hot Creek and the Blue Chert

    SciTech Connect

    Sturchio, N.C.; Binz, C.M.; Sorey, M.L.

    1986-01-01

    To better define the evolution of the Long Valley hydrothermal system, we have embarked on a program of U/Th age determinations of hydrothermal products from outcrops and drill cores within the caldera. The U/Th system is appropriate for determining ages less than about 350 Ka in suitable materials. Results presented are from dense chalcedonic silica veins, collected from base to top of the outcrop beginning 40 m N of hot spring LHC-1 in Little Hot Creek canyon, and from samples of the Blue Chert.

  2. Modeling the geomorphological impact on Alameda Creek, CA, and associated change in flood risk, due to the removal of Sunol and Niles Dams

    NASA Astrophysics Data System (ADS)

    Rupp, D. E.; Tjerry, S.; Saleh, R.

    2008-12-01

    The Sunol and Niles Dams on Alameda Creek, CA, were removed in 2006 to improve fish passage. Though the total sediment storage in the reservoirs was estimated to be at no more than one-quarter of the mean annual sediment load of Alameda Creek, there was concern that a downstream sediment pulse resulting from dam removal would induce a transient water level increase in the flood control channel (FCC) requiring that costly channel dredging (done as a flood control measure) be carried out earlier than originally anticipated. To assess the impact of the dams" removal, the morphological evolution of the FCC over an 11-year period (Oct. 2003 to Oct. 2014) was simulated with MIKE 21C, a curvilinear 2-dimensional (2D) morphological model. Simulations of over a decade at very fine time steps were feasible due to recent parallelization of the model code. Nine scenarios were simulated covering three different reservoir scouring potentials (high, low, and none - the 'baseline' case) and three different future stream discharge patterns (wet, dry, historic). The channel bed evolution from these nine scenarios was examined to determine four points in time at which the impact of the additional reservoir sediments might pose the greatest increase in flood risk compared to the dams remaining in place (i.e. the no-scouring baseline cases). The channel bathymetries for these four cases plus the baselines were carried over to a 1D+2D hydrodynamic model (MIKE FLOOD) of the channel (1D) and floodplain (2D). The hydrodynamic flood model was run using the 100-yr, 500-yr, and FCC standard design hydrographs as input to determine if the additional sedimentation resulted in increased, or any, overtopping of the channel levees and consequent flooding. The study therefore provided quantification of the temporary impact on flooding induced by the dam removal.

  3. View of upstream face of Lake Sabrina Dam showing the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of upstream face of Lake Sabrina Dam showing the redwood planks and base of dam from Lake Sabrina Basin, view north - Bishop Creek Hydroelectric System, Plant 2, Lake Sabrina Dam, Bishop Creek, Bishop, Inyo County, CA

  4. View of Lake Sabrina Dam downstream face from parking lot ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of Lake Sabrina Dam downstream face from parking lot showing concrete outlet structure on tow of dam at left edge of photo, view southeast - Bishop Creek Hydroelectric System, Plant 2, Lake Sabrina Dam, Bishop Creek, Bishop, Inyo County, CA

  5. Reevaluating the age of the Walden Creek Group and the kinematic evolution of the western Blue Ridge, southern Appalachians

    USGS Publications Warehouse

    Thigpen, J. Ryan; Hatcher, Robert D.; Kah, Linda C.; Repetski, John E.

    2016-01-01

    An integrated synthesis of existing datasets (detailed geologic mapping, geochronologic, paleontologic, geophysical) with new paleontologic and geochemical investigations of rocks previously interpreted as part of the Neoproterozoic Walden Creek Group in southeastern Tennessee suggest a necessary reevaluation of the kinematics and structural architecture of the Blue Ridge Foothills. The western Blue Ridge of Tennessee, North Carolina, and Georgia is composed of numerous northwest-directed early and late Paleozoic thrust sheets, which record pronounced variation in stratigraphic/structural architecture and timing of metamorphism. The detailed spatial, temporal, and kinematic relationships of these rocks have remained controversial. Two fault blocks that are structurally isolated between the Great Smoky and Miller Cove-Greenbrier thrust sheets, here designated the Maggies Mill and Citico thrust sheets, contain Late Ordovician-Devonian conodonts and stable isotope chemostratigraphic signatures consistent with a mid-Paleozoic age. Geochemical and paleontological analyses of Walden Creek Group rocks northwest and southeast of these two thrust sheets, however, are more consistent with a Late Neoproterozoic (550–545 Ma) depositional age. Consequently, the structural juxtaposition of mid-Paleozoic rocks within a demonstrably Neoproterozoic-Cambrian succession between the Great Smoky and Miller Cove-Greenbrier thrust sheets suggests that a simple foreland-propagating thrust sequence model is not applicable in the Blue Ridge Foothills. We propose that these younger rocks were deposited landward of the Ocoee Supergroup, and were subsequently plucked from the Great Smoky fault footwall as a horse, and breached through the Great Smoky thrust sheet during Alleghanian emplacement of that structure.

  6. National Dam Inspection Program. K-Section Dam (NDI ID Number PA-1045, DER ID Number 1-84), Potomac River Basin, Tributary to Toms Creek, Adams County, Pennsylvania, Carroll Valley Borough. Phase I Inspection Report

    DTIC Science & Technology

    1981-08-01

    on the west side of this fault were uplifted during the closing stages of the Triassic period , forming the South Mountains of the Blue Ridge Province...observed to be located adjacent to the spillway. It was observed during the inspection that during periods of excessive inflow to the reservoir...a, APPENDIX F GEOLOGY General Geology The K-Section Dam is located in the Triassic Lowland Section, also known as the Gettysburg Plain, of the

  7. Restoring Fossil Creek

    ERIC Educational Resources Information Center

    Flaccus, Kathleen; Vlieg, Julie; Marks, Jane C.; LeRoy, Carri J.

    2004-01-01

    Fossil Creek had been dammed for the past 90 years, and plans were underway to restore the stream. The creek runs through Central Arizona and flows from the high plateaus to the desert, cutting through the same formations that form the Grand Canyon. This article discusses the Fossil Creek monitoring project. In this project, students and teachers…

  8. Restoring Fossil Creek

    ERIC Educational Resources Information Center

    Flaccus, Kathleen; Vlieg, Julie; Marks, Jane C.; LeRoy, Carri J.

    2004-01-01

    Fossil Creek had been dammed for the past 90 years, and plans were underway to restore the stream. The creek runs through Central Arizona and flows from the high plateaus to the desert, cutting through the same formations that form the Grand Canyon. This article discusses the Fossil Creek monitoring project. In this project, students and teachers…

  9. National Dam Safety Program. East Highland lake Dam (NJ 00288). Hudson River Basin. Tributary to Warwick Creek, Sussex County, New Jersey. Phase 1 Inspection Report.

    DTIC Science & Technology

    1981-07-01

    maintenance plan to ensure the safety of the dam within one year from the date of approval of this report. d. An emergency action plan and warning...should bc cleared of accumulated silt and debris. c. The owner should develop written operating procedures and a periodic maintenance plan to ensure the...safety of the dam within one year from the date of approval of this report. d. An emergency action plan and warning system should be developed which

  10. National Dam Inspection Program. Black Creek Reservoir Dam (NY 00182) Mohawk River Basin, Town of Norway, Herkimer County, New York. Phase I Inspection Report,

    DTIC Science & Technology

    1981-09-14

    STrIICTURkS (Power Ilou::e, Lock, Gatehouse, Service Bridge , Other) a. Description: OL .> ! ,.P . , ’,- . C-,:Lt:. L.A( L- P - C’ .. ...~x~ .i V 4...ste must be tree tIoti p~aint and oil, and all scale shall be removed before imbediding itt tile concrete. Steel wire stirrups , wire niettinga...of those old covered woOden bridges spans the strcwn where the road crosses it. Above the present dam the ies expnse of M rroud. A daM or .tho

  11. National Dam Safety Program. Grindstone-Lost-Muddy Creek Dam C-3 (MO 10384), Grand - Chariton Basin, Dekalb County, Missouri. Phase I Inspection Report.

    DTIC Science & Technology

    1980-06-01

    11 4.3 Maintenance of Operating Facilities 11 4.4 Description of Any Warning System in Effect 11 4.5 Evaluation 11 SECTION 5 - HYDRAULIC/HYDROLOGIC...IN EFFECT There is no warning system in effect for this dam. 4.5 EVALUATION The overall appearance of this dam after 10 years of operation is excellent...71it; r atcz-iai is covered from 12 -ft. to 22 ft. vrith CL rmatcral a:iscep3a.-c fr-i the pcol~iUbe erylow* Fundation drai*ns shoul.d ztbe, needezi

  12. Wildlife and Wildlife Habitat Loss Assessment at Hills Creek Dam and Reservoir Project, Middle Fork Willamette River, Oregon, 1985 Final Report.

    SciTech Connect

    Noyes, J.H.

    1985-09-01

    A habitat based assessment was conducted of the US Army Corps of Engineers' Hills Creek Dam and Reservoir Project on the Middle Fork Willamette River, Oregon, to determine losses or gains resulting from the development and operation of the hydroelectric related components of the project. Preconstruction, postconstruction, and recent vegetation cover types of the project site were mapped based on aerial photographs from 1944, 1964, and 1979, respectively. Vegetation cover types were identified within the affected area and acreages of each type at each period were determined. Fifteen wildlife target species were selected to represent a cross-section of species groups affected by the project. An interagency team evaluated the suitability of the habitat to support the target species at each time period. An evaluation procedure which accounted for both the quantity and quality of habitat was used to aid in assessing impacts resulting from the project. The Hills Creek Project extensively altered or affected 4662 acres of land and river in the Middle Fork Willamette River drainage. Impacts to wildlife centered around the loss of 2694 acres of old-growth forest and 207 acres of riparian habitat. Impacts resulting from the Hills Creek Project included the loss of winter range for Roosevelt elk, and the loss of year-round habitat for black-tailed deer, black bear, cougar, river otter, beaver, ruffed grouse, spotted owl, and other nongame species. Bald eagle and osprey were benefited by an increase in foraging habitat. The potential of the affected area to support wildlife was greatly altered as a result of the Hills Creek Project, losses or gains in the potential of the habitat to support wildlife will exist over the life of the project.

  13. 75 FR 22758 - Notice of Intent To Prepare a Draft Environmental Impact Statement and Dam Safety Assurance...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-30

    ... Statement and Dam Safety Assurance Program Modification Report for the Martis Creek Dam Project, Nevada... the Federal action to remediate seismic, seepage, and hydrologic dam safety concerns at the Martis Creek Dam. Martis Creek Dam is located about two miles upstream of the confluence of Martis Creek and...

  14. 78 FR 76288 - Notice of Intent To Prepare a Draft Environmental Impact Statement and Dam Safety Modification...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-17

    ... and Dam Safety Modification Study Report for the Cherry Creek Project, Arapahoe County, Colorado... action to remediate dam safety concerns at Cherry Creek Dam. The dam safety concerns are primarily... that could be affected by such an event. Cherry Creek Dam and Lake is located on Cherry Creek, 11.4...

  15. 17. VIEW OF MAIN AND DIVERSION DAMS FROM WATERGATE AFTER ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. VIEW OF MAIN AND DIVERSION DAMS FROM WATER-GATE AFTER REMOVAL OF DRIFTWOOD. DIVERSION DAM IN LEFT FOREGROUND, MAIN DAM TO THE RIGHT. Photographed July 18, 1938. - Forge Creek Dam-John Cable Mill, Townsend, Blount County, TN

  16. National Dam Safety Program. Silver Lake Dam (NJ00469), Wallkill River Basin, Tributary to Franklin Pond Creek, Sussex County, New Jersey. Phase I Inspection Report.

    DTIC Science & Technology

    1981-05-01

    It. NUMBER OF PAGES Trenton, NJ 08625 65 IT. MONITORING AGENCY NAME & AoORESS(r rerf ,,,,t ha C.n. llhiE OM.) IS. SECURITY CLASS. (of thi t. t) U.S...WOROS (Cantlam an m ,*-e ai i mem med identiy by Slac* Vdi) Dams National Dam Safety Program Embanknents Wallkill River Basin, NJ Visual Inspection Silver...0t 0ac 5 0.’e 0. 03*q.uf 4A AL- V) c I ’-S I- CC LUD LC 4Jl r 0 0 c 4.) 0 to) * D 0 0 W OC .0 (0.0 I- V; 41 Z-; (• Ŕ 0-" 0Ŕ >0.04- 030 4-’ 0 0 v 0 CC

  17. National Dam Safety Program. Basic Creek Dam (Inventory Number N.Y. 84), Lower Hudson River Basin, Albany County, New York. Phase I Inspection Report,

    DTIC Science & Technology

    1981-02-01

    detectable if inspected under the normal operating environment of the structure. It is important to note that the condition of a dam depends on numerous and... detected and only through continued care and maintenance can these conditions be prevented or corrected. Phase I inspections are not intended to provide...topographic map, Landsat (ERTS), Skylab, or U-2 Photographic product. This feature extends from the south side of the reservoir southward and west of the

  18. National Dam Safety Program. Vincentown Mill Dam (NJ00396) Delaware River Basin, South Branch Rancocas Creek, Burlington County, New Jersey. Phase 1 Inspection Report

    DTIC Science & Technology

    1980-03-01

    topping failure. Rudolph rube -- Vice President Louis Berger & Associates, in-. C.) LLJ >9 TABLE OF CONTENTS Page Assessment of General Conditons Overall...OPERATION See Section 4. 2.4 EVALUATION a. Availability In view of the size and structural conditon of the dam, it is felt that sufficient engineering data...of land where the surficial soils are comprised of recent alluvium with a wide range of grain sizes occuring in intermingled layers. To the west are

  19. National Dam Safety Program. New Jersey No Name Dam Number 57 (NJ00826), Delaware River Basin, Tributary to Crosswicks Creek, Monmouth County, New Jersey. Phase I Inspection Report.

    DTIC Science & Technology

    1981-08-01

    Philadelphia District Corps oF Engineers Philadelphia, Pennsylvania AUGUST 1981 _7 -------- -,-.-in 7- -- /1 ---------------------- Now National Dam Safety...34. / Boston, Mass. 02114 I. CONTROLLING OFFICE NAME AND ADDRESS 5S. OATE 3NJ Department of Environmental Protection e Aug.. 1981 / Division of Water...CUSTOM HOUSE-2D & CHESTNUT STREEIS PHILADEIPHJA, PENNSYLVANIA 19106 IN REPL Y REF 10 NAPEN-N 1 1 AUG 1981 Honorable Brendan T. Byrae Governor of New

  20. National Dam Safety Program. Lake Windsor Dam (NJ-00034), Hudson River Basin, Tributary Papakating Creek, Sussex County, New Jersey. Phase I Inspection Report.

    DTIC Science & Technology

    1981-03-01

    Potential." Visual inspection of the downstream area shows that breach of the dam would cause little damage to downstream residences which are...Le Novo( ~OIP o. a p" ,,_ _,_ o= (T ]l,4oo7/-2 4; J r ./0 /000 , By~ DATE1’V2.3Z oe -No. Igo JO CKD A~ DATE ____________SHEETNOOF LANGAN ENGINEERING...JOB NO. 4AZY , CKD -" - DATE3,tl/& SHEET NOJ.. OF. 10~ NN r Q ~Zf) A)i~ JO N O. .. ey WA... DATE JOBL " - ""~ HE NO. oJ2. loo ’.4 ~ye 41P~4~’ S

  1. National Dam Safety Program. Lake Monocan Dam (ID VA-12502), James River Basin, Allen Creek. Nelson County, Virginia. Phase I Inspection Report.

    DTIC Science & Technology

    1980-04-01

    abutment. The broad - crested weir crest , at elevation ’Measured from the streambed at the downstream toe to the embankment crest .2All elevations are...LAKE MONOCAN DAM 7 677.0 feet M.S.L., is 38.4 feet long. Vertical steel reinforcing bars embedded in the crest of the weir act as a trash rack. The...elevation of 677.0 feet M.S.L. by means of the weir crest of the side channel principal spillway. During periods of heavy inflow, the excess water is

  2. Estimated Flood-Inundation Mapping for the Upper Blue River, Indian Creek, and Dyke Branch in Kansas City, Missouri, 2006-08

    USGS Publications Warehouse

    Kelly, Brian P.; Huizinga, Richard J.

    2008-01-01

    In the interest of improved public safety during flooding, the U.S. Geological Survey, in cooperation with the city of Kansas City, Missouri, completed a flood-inundation study of the Blue River in Kansas City, Missouri, from the U.S. Geological Survey streamflow gage at Kenneth Road to 63rd Street, of Indian Creek from the Kansas-Missouri border to its mouth, and of Dyke Branch from the Kansas-Missouri border to its mouth, to determine the estimated extent of flood inundation at selected flood stages on the Blue River, Indian Creek, and Dyke Branch. The results of this study spatially interpolate information provided by U.S. Geological Survey gages, Kansas City Automated Local Evaluation in Real Time gages, and the National Weather Service flood-peak prediction service that comprise the Blue River flood-alert system and are a valuable tool for public officials and residents to minimize flood deaths and damage in Kansas City. To provide public access to the information presented in this report, a World Wide Web site (http://mo.water.usgs.gov/indep/kelly/blueriver) was created that displays the results of two-dimensional modeling between Hickman Mills Drive and 63rd Street, estimated flood-inundation maps for 13 flood stages, the latest gage heights, and National Weather Service stage forecasts for each forecast location within the study area. The results of a previous study of flood inundation on the Blue River from 63rd Street to the mouth also are available. In addition the full text of this report, all tables and maps are available for download (http://pubs.usgs.gov/sir/2008/5068). Thirteen flood-inundation maps were produced at 2-foot intervals for water-surface elevations from 763.8 to 787.8 feet referenced to the Blue River at the 63rd Street Automated Local Evaluation in Real Time stream gage operated by the city of Kansas City, Missouri. Each map is associated with gages at Kenneth Road, Blue Ridge Boulevard, Kansas City (at Bannister Road), U.S. Highway 71

  3. Embankment Criteria and Performance Report. Salt Creek and Tributaries, Nebraska. Site 13. Twin Lakes Dam and Lake.

    DTIC Science & Technology

    1982-08-01

    rebar extending from the center of the post from which vertical and horizontal surveys are taken. Plan locations and recorded observations of the...1350 U. I. AIRMY STNIM11EEU bIM §OThi OMiAHA UMANA, 1611ASA 1340 t, SALT CREEN AND ITS TAWAARTAItt.WaASO mo~ ~ DAM AND RESERVOIR, SITE 13 - 133

  4. A visual resource management study of alternative dams, reservoirs and highway and transmission line corridors near Copper Creek, Washington

    Treesearch

    John Ady; Brian A. Gray; Grant R. Jones

    1979-01-01

    Three alternative dams have been considered by Seattle City Light for the Skagit River Narrows in the North Cascades National Recreation Area, Washington. The authors assessed the area's existing visual resources, identified three alternative highway and transmission line realignments, evaluated changes in visual character and quality for 13 different combinations...

  5. 10. DETAIL OF NONOVERFLOW SECTION OF DAM SHOWING PENSTOCK OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    10. DETAIL OF NON-OVERFLOW SECTION OF DAM SHOWING PENSTOCK OF SUBMERSIBLE TURBINE-GENERATOR - Middle Creek Hydroelectric Dam, On Middle Creek, West of U.S. Route 15, 3 miles South of Selinsgrove, Selinsgrove, Snyder County, PA

  6. VIEW FROM NORTH BANK LOOKING SOUTHWEST SHOWING DAM CREST, FISH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    VIEW FROM NORTH BANK LOOKING SOUTHWEST SHOWING DAM CREST, FISH ATTRACTION FLOW STRUCTURE (LEFT) AND WASTE FLOW GATE OUTLET (RIGHT) - Trout Creek Dam, River Mile 1.8 on Trout Creek, Carson, Skamania County, WA

  7. 61. 'LITTLEROCK DAM LOOKING FROM LEFT TO RIGHT ABUTMENTSPILLWAY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    61. 'LITTLEROCK DAM - LOOKING FROM LEFT TO RIGHT ABUTMENT-SPILLWAY DISCHARGING.' No date; probably 1960s. Photographer unknown. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  8. View of upstream face of Lake Sabrina Dam showing redwood ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of upstream face of Lake Sabrina Dam showing redwood planks and boulders in Lake Sabrina Basin, view north - Bishop Creek Hydroelectric System, Plant 2, Lake Sabrina Dam, Bishop Creek, Bishop, Inyo County, CA

  9. View of Lake Sabrina Dam upstream face from ridge showing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of Lake Sabrina Dam upstream face from ridge showing spillway at lower right of photo, view southwest - Bishop Creek Hydroelectric System, Plant 2, Lake Sabrina Dam, Bishop Creek, Bishop, Inyo County, CA

  10. View of Lake Sabrina Dam and Lake Sabrina from east ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of Lake Sabrina Dam and Lake Sabrina from east ridge showing spillway at photo center, view southwest - Bishop Creek Hydroelectric System, Plant 2, Lake Sabrina Dam, Bishop Creek, Bishop, Inyo County, CA

  11. View of Lake Sabrina Dam showing the wooden planks along ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of Lake Sabrina Dam showing the wooden planks along the upstream side face and the spillway at the right center of photo, view north - Bishop Creek Hydroelectric System, Plant 2, Lake Sabrina Dam, Bishop Creek, Bishop, Inyo County, CA

  12. 76. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLEARCHED TYPE: DOWNSTREAM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    76. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLE-ARCHED TYPE: DOWNSTREAM ELEVATION, SHEET 3; OCTOBER 2, 1919. Littlerock Water District files. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  13. 78. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLEARCHED TYPE: DIMENSIONS, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    78. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLE-ARCHED TYPE: DIMENSIONS, SECTION THROUGH ARCH RING, SHEET 5; OCTOBER 2, 1919. Littlerock Water District files. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  14. 79. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLEARCHED TYPE: REINFORCEMENT, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    79. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLE-ARCHED TYPE: REINFORCEMENT, SHEET 6; OCTOBER 2, 1919. Littlerock Water District files. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  15. 77. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLEARCHED TYPE: CROSS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    77. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLE-ARCHED TYPE: CROSS SECTIONS, SHEET 4; OCTOBER 2, 1919. Littlerock Water District files. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  16. 74. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLEARCHED TYPE: PLAN, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    74. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLE-ARCHED TYPE: PLAN, SHEET 1, OCTOBER 2, 1919. Littlerock Water District files. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  17. 75. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLEARCHED TYPE: UPSTREAM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    75. PALMDALE WATER COMPANY, LITTLEROCK DAM, EASTWOOD MULTIPLE-ARCHED TYPE: UPSTREAM ELEVATION, SHEET 2; OCTOBER 2, 1919. Littlerock Water District files. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  18. 68. LITTLE ROCK AND PALMDALE IRRIGATION DISTRICT, LITTLE ROCK DAM: ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    68. LITTLE ROCK AND PALMDALE IRRIGATION DISTRICT, LITTLE ROCK DAM: STRESS SHEET, SHEET 4; MAY, 1918. Littlerock Water District files. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  19. 71. PALMDALE WATER COMPANY, EASTWOOD MULTIPLEARCHED DAM: STRESS SHEET, SHEET ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    71. PALMDALE WATER COMPANY, EASTWOOD MULTIPLE-ARCHED DAM: STRESS SHEET, SHEET 3; DECEMBER 20, 1918. Littlerock Water District files. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  20. 80. LITTLE ROCK DAM: DIMENSIONS, SECTION THROUGH ARCH RING, AMENDED ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    80. LITTLE ROCK DAM: DIMENSIONS, SECTION THROUGH ARCH RING, AMENDED SHEET 5; SEPTEMBER, 1922. Palmdale Water District files. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  1. 7. Detail view of reinforced concrete archrings comprising dam's upstream ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Detail view of reinforced concrete arch-rings comprising dam's upstream face. Impressions of the wooden formwork used in construction are visible in the concrete. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  2. Technical background information for the ORNL environmental and safety report. Volume 2. A description of the aquatic ecology of the White Oak Creek Watershed and the Clinch River below Melton Hill Dam

    SciTech Connect

    Loar, J.M.; Solomon, J.A.; Cada, G.F.

    1981-10-01

    In order to characterize the aquatic communities in the vicinity of Oak Ridge National Laboratory (ORNL), a biological sampling program was initiated in March 1979 and continued until June 1980. The periphyton, benthic macroinvertebrate, and fish communities were sampled at four sites in White Oak Creek watershed above White Oak Lake. In addition to these communities, phytoplankton, zooplankton, and ichthyoplankton were routinely collected at sites in White Oak Lake, White Oak Creek embayment below the dam, and in the Clinch River above and below the confluence with White Oak Creek. Also, muscle tissue of several fish species, including sauger and striped bass from the Clinch River, was analyzed for seven trace elements (Cd, Cr, Cu, Pb, Hg, Ni, and Zn). Data on the taxonomic composition, abundance, and temporal distribution of each community are presented for each of three study areas: upper White Oak Creek watershed, White Oak Lake, and the Clinch River (including White Oak Creek embayment). The spatial distribution of major taxonomic groups in each area was examined using analysis of variance techniques and dissimilarity indices. Results obtained from this study are compared with those of previous surveys of White Oak Creek when equivalent sampling methodologies were used. Attempts were also made to document changes that have occurred since the 1950-1953 survey.

  3. National Dam Inspection Program. Bronson Pond Dam (NDI ID Number PA 00143, DER ID Number 64-42),Delaware River Basin, Middle Creek, Wayne County, Pennsylvania. Phase I Inspection Report.

    DTIC Science & Technology

    1981-02-01

    r Bronson Pond Dam is an earth and rockfill structure approxi- mately 8 feet high and 100 feet in length. The dam was...near top of dam . Inflow occurring when the lake is at or above top of dam passes over and through the rockfill embankment. 1.3 Pertinent Data. a...the dam could cause a gradual, progressive failure. The flow rate does not appear to be an excessive amount for a dam of rockfill construction, but

  4. Analysis of stream-aquifer system interrelationships in the Big Blue and Little Blue River basins in Gage and Jefferson Counties, Nebraska

    USGS Publications Warehouse

    Ellis, M.J.

    1981-01-01

    Seepage measurements made during the fall of 1978 at 21 sites in the Big Blue River basin and at 35 sites in the Little Blue River basin were used to determine stream gains or losses in 20 drainage areas in the Big Blue River basin and 31 drainage areas in the Little Blue River basin. Analyses of data from these seepage measurements and of available hydrogeologic data indicate that the most significant ground-water contributions to streamflow in the Big Blue and Little Blue River drainage basins in Gage and Jefferson Counties, Nebr., occur where a direct hydraulic connection exists between a stream and buried coarse-grained deposits of Quaternary age. These deposits occur in two buried bedrock valleys that trend east-northeasterly across the area. The largest ground-water contributions to streamflow in the Big Blue River occur in the reaches of the river between the mouth of Mud Creek and the dam at Blue Springs (about 13 cubic feet per second) and between the mouth of Turkey Creek and the Beatrice gaging station (about 22 cubic feet per second). Ground-water contributions to streamflow also occur in two tributaries of the Big Blue River; Bear Creek (4.39 cubic feet per second) and Big Indian Creek (6.23 cubic feet per second). In the Little Blue River basin the largest contributions to streamflow occur between the mouths of Big Sandy Creeks (about 6.5 cubic feet per second) and in the vicinity of Fairbury (about 16 cubic feet per second). A ground-water contribution to streamflow of about 6.5 cubic feet per second also occurs in Rose Creek, a tributary of the Little Blue River. (USGS)

  5. Blue Marsh Dam and Reservoir Condition Report. Dam, Outlet Works, Spillway and Bernville Protective Works. Periodic Inspection Report Number 2, September 1979. Schuylkill River Basin. Tulpehocken Creek, Pennsylvania.

    DTIC Science & Technology

    1980-04-01

    channel, possible cavities and steeply dipping open joints (in excess of 60 cy of solids were injected at the point of water loss in a few holes ). Due...inch diamter) drain hole in the bottom of the bonnet cover was recommended to prevent the accumulation of water at this location. Action accomplished...stop log lifting lug recesses contained water . A small drain hole should be drilled in each recess to relieve this condition. (c) An operational test

  6. National Dam Inspection Program. Shawnee Dam (NDI-ID number PA-00629), DER-ID number 45-115 Shawnee Development, nc. Delaware River Basin, Shawnee Creek, Monroe County, Pennsylvania. Phase I Inspection Report.

    DTIC Science & Technology

    1980-01-01

    development is present. The terrain varies from steep, mountainous areas to nearly flat areas in the valley. Camp Sun Mountain Lake Dam, a 9-foot high...dam, is located within the watershed about 0.45 mile upstream from Shawnee Dam. (Photographs K and L). Data for Camp Sun Mountain Lake Dam obtained...there is no means of drawing down the reservoir. (4) Reservoir Area. Camp Sun Mountain Lake Damn, located 0.45 mile upstrem, does affect the

  7. National Dam Inspection Program. Page’s Lake Dam NDI Number PA 00062 PennDER Number 58-5) Susquehanna River Basin, Salt Lick Creek, Susquehanna County, Pennsylvania. Phase I Inspection Report.

    DTIC Science & Technology

    1981-02-01

    Upstream - 1.5H:lV Downstream - Vertical (stone wall) Zoning - The upstream slope is earth and rockfill . A concrete core wall is located upstream of...feet high, with a trapezoidal earth spillway. d. Overtopping Potential - Page’s Lake Dam is an "Intermediate" size - "Significant" hazard dam ...34Evalua- tion and Repair of Stonewall- earth Dams ," by Kent A. Healy, Proceedings of "Safety of Small Dams " conference, New England College, Henniker, New

  8. National Dam Inspection Program. Laurel Hill Lake Dam (NDI I.D. Number PA-267, Penn.DER Number 56-66) Ohio River Basin. Laurel Hill Creek, Somerset County, Pennsylvania Phase I Inspection Report,

    DTIC Science & Technology

    1980-03-01

    AD-A GOG 1 73 ACKENH’EIL AND I ASSOCIATES INC BALTIMORE MO F /6 13/13NATIONAL DAM INSPECTION PROGRAM. LAUREL HILL LAKE DAM (NI I.D.--ETC(U) MAR...E2 APPENDIX F - REGIONAL GEOLOGY Regional Geology ...... ................ Fl Geologic Map.. ...... ................. F2 vi 4...Department of Environmental Resources, P. 0. Box 1467, Harrisburg, Pennsylvania 17120. F . PURPOSE OF DAM: The dam was constructed for use as a

  9. Integration of vertical and in-seam horizontal well production analyses with stochastic geostatistical algorithms to estimate pre-mining methane drainage efficiency from coal seams: Blue Creek seam, Alabama.

    PubMed

    Karacan, C Özgen

    2013-07-30

    Coal seam degasification and its efficiency are directly related to the safety of coal mining. Degasification activities in the Black Warrior basin started in the early 1980s by using vertical boreholes. Although the Blue Creek seam, which is part of the Mary Lee coal group, has been the main seam of interest for coal mining, vertical wellbores have also been completed in the Pratt, Mary Lee, and Black Creek coal groups of the Upper Pottsville formation to degasify multiple seams. Currently, the Blue Creek seam is further degasified 2-3 years in advance of mining using in-seam horizontal boreholes to ensure safe mining. The studied location in this work is located between Tuscaloosa and Jefferson counties in Alabama and was degasified using 81 vertical boreholes, some of which are still active. When the current long mine expanded its operation into this area in 2009, horizontal boreholes were also drilled in advance of mining for further degasification of only the Blue Creek seam to ensure a safe and a productive operation. This paper presents an integrated study and a methodology to combine history matching results from vertical boreholes with production modeling of horizontal boreholes using geostatistical simulation to evaluate spatial effectiveness of in-seam boreholes in reducing gas-in-place (GIP). Results in this study showed that in-seam wells' boreholes had an estimated effective drainage area of 2050 acres with cumulative production of 604 MMscf methane during ~2 years of operation. With horizontal borehole production, GIP in the Blue Creek seam decreased from an average of 1.52 MMscf to 1.23 MMscf per acre. It was also shown that effective gas flow capacity, which was independently modeled using vertical borehole data, affected horizontal borehole production. GIP and effective gas flow capacity of coal seam gas were also used to predict remaining gas potential for the Blue Creek seam.

  10. Integration of vertical and in-seam horizontal well production analyses with stochastic geostatistical algorithms to estimate pre-mining methane drainage efficiency from coal seams: Blue Creek seam, Alabama

    PubMed Central

    Karacan, C. Özgen

    2015-01-01

    Coal seam degasification and its efficiency are directly related to the safety of coal mining. Degasification activities in the Black Warrior basin started in the early 1980s by using vertical boreholes. Although the Blue Creek seam, which is part of the Mary Lee coal group, has been the main seam of interest for coal mining, vertical wellbores have also been completed in the Pratt, Mary Lee, and Black Creek coal groups of the Upper Pottsville formation to degasify multiple seams. Currently, the Blue Creek seam is further degasified 2–3 years in advance of mining using in-seam horizontal boreholes to ensure safe mining. The studied location in this work is located between Tuscaloosa and Jefferson counties in Alabama and was degasified using 81 vertical boreholes, some of which are still active. When the current long mine expanded its operation into this area in 2009, horizontal boreholes were also drilled in advance of mining for further degasification of only the Blue Creek seam to ensure a safe and a productive operation. This paper presents an integrated study and a methodology to combine history matching results from vertical boreholes with production modeling of horizontal boreholes using geostatistical simulation to evaluate spatial effectiveness of in-seam boreholes in reducing gas-in-place (GIP). Results in this study showed that in-seam wells' boreholes had an estimated effective drainage area of 2050 acres with cumulative production of 604 MMscf methane during ~2 years of operation. With horizontal borehole production, GIP in the Blue Creek seam decreased from an average of 1.52 MMscf to 1.23 MMscf per acre. It was also shown that effective gas flow capacity, which was independently modeled using vertical borehole data, affected horizontal borehole production. GIP and effective gas flow capacity of coal seam gas were also used to predict remaining gas potential for the Blue Creek seam. PMID:26435557

  11. Importance of dam BW change and calf birth weight in double-muscled Belgian Blue cattle and its relationship with parity and calving interval.

    PubMed

    Fiems, L O; Ampe, B

    2015-01-01

    Factors affecting calving interval (CI) in double-muscled Belgian Blue (DMBB) beef cows were investigated with regard to the BW yield (BWY) of the cow-calf pair, using 834 CI records from 386 females with parities 1 to 6. The effect of parity and CI on BWY was also studied. Cow-calf pair BWY was defined as calf birth weight plus dam BWY per CI. CI (mean±s.e.: 404±1.9 days) was affected by parity, calving season, suckling and calf birth weight/dam weight. Primiparous cows had a shorter CI than cows with three or more calvings (P<0.05), with an intermediate CI for second-calf cows. Spring calvings resulted in a shorter CI than summer and autumn calvings, with intermediate values for winter calvings. Suckling dams had longer CIs than non-suckling dams. There were interactions (P<0.05) between calving season and suckling, and between calving season and mating system. Shortest CIs were observed for spring calvings in case of non-suckling and for summer calvings in case of suckling. Longest CIs were observed for autumn calvings in case of natural service (NS) and for winter calvings in case of artificial insemination (AI). Calf birth weight/dam weight of 6% to 10% resulted in shorter CI than a ratio of <6% (P<0.05). Body condition and mating system (NS v. AI) did not affect CI. Daily cow-calf pair BWY was affected by parity (P<0.001) and CI (P=0.013), with a tendency for an interaction (P=0.094). Daily cow-calf pair BWY did not differ for CIs of <12 to 16 months in primiparous cows and was lowest for a CI of 13 to 15 months in second-calf cows, whereas the effect of CI was more variable in older cows. Dam contribution to cow-calf pair BWY was larger than calf birth weight in first- and second-calf cows, and increased with increasing CI. Dam contribution to cow-calf pair BWY was smaller than calf birth weight in older cows, varying from 0.2 to 1.0 depending on CI. A short CI is advised for DMBB cows because of a larger BWY and more efficient nutrient utilisation.

  12. 20. DISTANT HELICOPTER VIEW TO SOUTHEAST UP LITTLE ROCK CREEK ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    20. DISTANT HELICOPTER VIEW TO SOUTHEAST UP LITTLE ROCK CREEK CANYON, WITH DAM AND RESERVOIR AT RIGHT CENTER. PALMDALE-LITTLEROCK DITCH, MARKED BY DENSE VEGETATION, CROSSES ROAD AT LOWER CENTER - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  13. 18. Photocopy of a photographca. 1950showing Lake Hodges Dam in ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    18. Photocopy of a photograph--ca. 1950--showing Lake Hodges Dam in San Diego County, CA., during a period of low water. Courtesy Mr. Charles Allan Whitney. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  14. 18. DETAIL AT JUNCTION OF MAIN DAM AT LEFT AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    18. DETAIL AT JUNCTION OF MAIN DAM AT LEFT AND DIVERSION DAM AT RIGHT SHOWING LOG CRIBBING. SPACES INSIDE CRIBBING WERE FILLED WITH STONE TO ANCHOR DAM; DETERIORATION OF DAM HAS ALLOWED STONE BALLAST TO WASH AWAY. Photographed July 18, 1938. - Forge Creek Dam-John Cable Mill, Townsend, Blount County, TN

  15. 7. VIEW SOUTH OF SPILLWAY SECTION OF DAM WITH CONCRETE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. VIEW SOUTH OF SPILLWAY SECTION OF DAM WITH CONCRETE ABUTMENT TO LEFT, AND SHOWING FLASH BOARD SUPPORTS ON TOP OF DAM - Middle Creek Hydroelectric Dam, On Middle Creek, West of U.S. Route 15, 3 miles South of Selinsgrove, Selinsgrove, Snyder County, PA

  16. 3. View of Sterling Creek Marsh at low tide showing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. View of Sterling Creek Marsh at low tide showing rubble at the entrance of dam/bridge looking southwest - Richmond Hill Plantation, Sterling Creek Marsh, East of Richmond Hill on Ford Neck Road, Richmond Hill, Bryan County, GA

  17. 4. View of Sterling Creek Marsh at low tide showing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. View of Sterling Creek Marsh at low tide showing rubble at the entrance of the dam/bridge looking east - Richmond Hill Plantation, Sterling Creek Marsh, East of Richmond Hill on Ford Neck Road, Richmond Hill, Bryan County, GA

  18. 1. WATER ENTERING CONFLUENCE POOL FROM BEAR CREEK AT LEFT, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. WATER ENTERING CONFLUENCE POOL FROM BEAR CREEK AT LEFT, AND FROM SANTA ANA RIVER THROUGH TUNNEL #0 AT RIGHT. VIEW TO NORTHEAST. - Santa Ana River Hydroelectric System, Bear Creek Diversion Dam & Confluence Pool, Redlands, San Bernardino County, CA

  19. National Program of Inspection of Non-Federal Dams, Tennessee. Marys Creek Dam Number 8 (Inventory Number TN 15727), Wolf River Basin, near Cross Roads, Shelby County, Tennessee. Phase I Investigation Report,

    DTIC Science & Technology

    1981-09-01

    signjfic;an1M- d m rdn ..... A nr ’ the up- stream slope of the dam and downstream of the toe. 3) There wae no measurehle eerg fonntL XI. Recommendations 1...Inspection April 1 1 5I ID # - State 79- 7078 Federal TN 15776 Type of Dam Earth Hazard Category-Federal 1 State High Weather Sunny, breezy Temperature

  20. National Dam Inspection Program. Fishpond Dam (NDS ID Number PA-899, DER ID Number 19-81), Susquehanna River Basin, Unnamed Tributary to Roaring Creek, Columbia County, Pennsylvania. Phase I Inspection Report.

    DTIC Science & Technology

    1980-06-01

    lies within the Appalachian Mountain Section of the Valley and Ridge Physiographic Province. This area is characterized by overturned and assymetric...the dam. The bedrock underlying the dam consists of the Devonian aged Catskill formation. This is a complex unit consisting of sandstones, siltstones

  1. National Dam Inspection Program. Croops Dam (NDS I.D. Number PA 01063, DER I.D. Number 40-227), Susequehanna River Basin, Tributary to Hunlock Creek, Luzerne County, Pennsylvania. Phase I Inspection Report.

    DTIC Science & Technology

    1980-06-01

    8217-4 z 0 0 E40 wU APPENDIX * D Sheet 1 of 10 CHECK LIST HYDROLOGIC AND HYDRAULIC ENGINEERING DATA Small, mountainous , 80% zwooded, very little...401VA31 I N 0 -z .* 4 -~, - /z zz I N ] I APPENDIX F SITE GEOLOGY CROOPS DAM Croops Dam is located in the Appalachian Mountain Section of the Valley and...Ridge Physiographic Province. As shown in Plate F-i, the dam is constructed upon the Catskill Formation of Upper Devonian age, consisting of red to tan

  2. National Dam Inspection Program. Mountain Springs Lake Dam (NDI-ID number PA-00770), DER-ID number 45-42 Delaware River Basin, Appenzell Creek, Monroe County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1980-01-01

    Poplar Gap Member; and sandstones and conglomerates in the Duncannon Member. Mountain Springs Lake Dam is underlain by the Long Run Member of The Catskill ...AD-AG 636 GANNETT FLEMING CORDORY AND CARPENTER INC HARRISBURG PA F/G 13/13 NATIONAL DAM INSPECTION PROGRAM. MOUNTAIN SPRINGS LAKE DAM (NOI--ETC(U...5REEK. MONROE gOLJNTY ’ PENNSYLVANIA- -- " MOUNTAIN PRINGS LAKE DA &N I-ID .PA -,O ’a 7 0 , 7f 0- DER-ID -- d- 45-4 (~ ACK B /RADR ORDOINAL CONTAINS

  3. National Dam Inspection Program. Macham Dam (NDI I.D. Number PA-00043 Pennder I.D. Number 8-56) Susquehanna River Basin. Wolcott Creek, Bradford County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1980-07-01

    INSPECTION PROGRAM ABSTRACT Macham Dam: NDI I.D. No. PA-00043 Owner: Manley and Afton Chamberlain State Located: Pennsylvania (PennDER I.D. No. 8-56...storage capacity at top of dam. d. Hazard Classification. High (see Section 3.l.e). e. Ownership. Manley and Afton Chamberlain Box 122 R.D. 2 Wellsburg...N.Y. 14894 1 f. Purpose. Recreation. h. Historical Data. Macham Dam is owned by Manley and Afton Chamberlain, a father and son partnership who conceived

  4. Overwintering of the parasitic dinoflagellate Hematodinium perezi in dredged blue crabs (Callinectes sapidus) from Wachapreague Creek, Virginia.

    PubMed

    Shields, Jeffrey D; Sullivan, Shelley E; Small, Hamish J

    2015-09-01

    Parasitic dinoflagellates in the genus Hematodinium cause disease and mortality in several commercially important marine decapod crustaceans. One species, Hematodinium perezi, occurs in blue crabs, Callinectes sapidus, along the eastern seaboard and Gulf coast of the USA. The parasite infects blue crabs, other decapods, and amphipods in the high salinity waters of coastal bays. Epizootics of the parasite often reach prevalence levels of 75-80% during outbreaks with diseased crabs dying from the infection. Prevalence of the parasite is bimodal, with a minor peak in late spring or summer, and a major peak in fall, and declining rapidly to nearly zero in late November and December. The rapid decline in infections in the late fall brings up the question of whether the parasite overwinters in crabs or whether it uses an unidentified resting stage, such as a cyst. We report observations on the prevalence of the parasite from winter dredge surveys undertaken in 2011 and 2012. Crabs were examined via hemolymph smears, histology, and PCR diagnosis for the presence of H. perezi and other pathogens. Active infections were observed from January through March in 2011 and 2012, indicating the parasite can overwinter in blue crabs. However, several crabs that were positive by PCR had presumptive effete infections that were difficult to diagnose in histological slides and hemolymph smears. These infections did not appear to be active and may have been in subsidence. Dredged crabs with light and moderate active infections were held at 15°C to determine if the parasite was capable of rapid progression. In 8 cases, infections exhibited logarithmic growth progressing rapidly over 8-12days. We present evidence that overwintering of H. perezi occurs in the blue crab hosts, that infections are capable of responding rapidly to increases in temperatures, and that overwintering provides a reservoir of infected animals for transmission to occur in the spring. Copyright © 2015 Elsevier Inc

  5. National Dam Inspection Program. Polk Dam (NDI Number PA-00253, PennDER Number 61-7), Ohio River Basin, Piffer Run of Little Sandy Creek, Venango County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1980-03-01

    measures to reduce the overtopping potential of the dam. 2) Fill the two depressions on the downstream slope of the dam and monitor these areas in future...structure should be repaired. It is recommended that the slope be partially cut back in this area so as to decrease or stop the sloughing and erosion. ii...slope should be removed and the excavated area regraded and compacted. In addition, the following operational measures are recommended to be

  6. National Dam Inspection Program. Ross Pond Dam (NDI I.D. PA-0265, DER I. D. 058-142), Susquehanna River Basin, Tributary of Drinker Creek, Susquehanna County, Pennsylvania. Phase I Inspection Report

    DTIC Science & Technology

    1981-08-01

    visual examination of the spillway and the visible portions of the outlet works. 3. The evaluation of the downstream area hazard potential. The specific ... areas , at about the midheight of the dam, signs of sloughing were observed. Sloughing appeared to be surficial, caused by surface runoff. In these...of 0.98 square mile and impounds a reservoir with a surface area of 51.4 acres at normal pool level. The flood discharge facility of the dam

  7. National Dam Safety Program. Patterson Brixius Grey Creek Watershed Project, Site 2 (Inventory Number NY 725). Susquehanna River Basin, Broome County, New York. Phase I Inspection Report,

    DTIC Science & Technology

    1980-09-30

    4. kci-.ve the veL ticn f -za the irlet and cutlet cf the auxiliary spillway, and the downstream channel. Provide a program of periodic cutt.in- and...the downstream channel;., Provide a program of periodic cutting and mowing of the dam and appurtenant surfaces. 5. Investigate the conditions of the...the 6 feet diameter highway culvert, A..’ A 7. Provide a program of periodic inspection and maintenance of the dam and appurtenances, including yearly

  8. 3. Side view of upper dam overspill, taken from east ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. Side view of upper dam overspill, taken from east bank of Millstone Creek. VIEW WEST - Loleta Recreation Area, Upper Dam, 6 miles Southeast of interesection of State Route 24041 & State Route 66, Loleta, Elk County, PA

  9. 5. View of upper dam side sluice taken from east ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. View of upper dam side sluice taken from east bank of Millstone Creek. VIEW WEST - Loleta Recreation Area, Upper Dam, 6 miles Southeast of interesection of State Route 24041 & State Route 66, Loleta, Elk County, PA

  10. 4. Side of view of upper dam overspill, taken from ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Side of view of upper dam overspill, taken from west bank of Millstone Creek, VIEW EAST - Loleta Recreation Area, Upper Dam, 6 miles Southeast of interesection of State Route 24041 & State Route 66, Loleta, Elk County, PA

  11. 3. POOL, DAM, AND INTAKE TO PIPELINE LEADING TO FISH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. POOL, DAM, AND INTAKE TO PIPELINE LEADING TO FISH WHEEL, LOOKING WEST-NORTHWEST. - Santa Ana River Hydroelectric System, Bear Creek Diversion Dam & Confluence Pool, Redlands, San Bernardino County, CA

  12. 8. VIEW OF BASIN BEHIND DAM, SHOWING SCARS FROM EARTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. VIEW OF BASIN BEHIND DAM, SHOWING SCARS FROM EARTH MOVING TO CONSTRUCT DAM, LOOKING NORTH - High Mountain Dams in Upalco Unit, East Timothy Lake Dam, Ashley National Forest, 8.4 miles North of Swift Creek Campground, Mountain Home, Duchesne County, UT

  13. 4. VIEW OF DOWNSTREAM FACE OF DAM, WITH SCARS FROM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. VIEW OF DOWNSTREAM FACE OF DAM, WITH SCARS FROM EARTH MOVING TO CONSTRUCT DAM IN FOREGROUND, LOOKING NORTHWEST - High Mountain Dams in Upalco Unit, Five Point Lake Dam, Ashley National Forest, 12 miles Northwest of Swift Creek Campground, Mountain Home, Duchesne County, UT

  14. 9. VIEW OF BASIN BEHIND DAM, SHOWING SCARS FROM EARTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    9. VIEW OF BASIN BEHIND DAM, SHOWING SCARS FROM EARTH MOVING TO CONSTRUCT DAM, LOOKING EAST - High Mountain Dams in Upalco Unit, East Timothy Lake Dam, Ashley National Forest, 8.4 miles North of Swift Creek Campground, Mountain Home, Duchesne County, UT

  15. National Dam Inspection Program. Rose Valley Lake Dam (NDI I.D. Number PA-01127, PennDER I.D. Number 41-97), Susquehanna River Basin, Mill Creek, Lycoming County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1980-07-01

    Group of Devonian age. Soils, generally on the north, northeast and south shores are derived from glacial till whereas the soils underlying the site of... period of continental glaciation. The Catskill member is poorly represented in outcrop throughout the area; however, outcrops in the Mill Creek gorge just

  16. National Dam Inspection Program. Lake Pinecrest Dam (NDS ID Number PA-641, DER ID Number 40-200). Lake Pinecrest Sportmans Club. Susquehanna River Basin, Tributary to Huntington Creek, Luzerne County, Pennsylvania. Phase I Inspection Report.

    DTIC Science & Technology

    1980-09-01

    periodically . The upstream slope of the dam ranges from IH:1V to 5H:IV. The downstream slope 1.7511:1V and is grass covered. Several small animal burrows and...at the time of inspection. A roadway exists across the embankment crest which is oiled periodically . Brush and small trees which had been growing on...and dam are of the Devonian aged Susquehanna Group. This is a complex unit of conglomerate, sandstone and shale. The usually well developed bedding

  17. Designing multi-reservoir system designs via efficient water-energy-food nexus trade-offs - Selecting new hydropower dams for the Blue Nile and Nepal's Koshi Basin

    NASA Astrophysics Data System (ADS)

    Harou, J. J.; Hurford, A.; Geressu, R. T.

    2015-12-01

    Many of the world's multi-reservoir water resource systems are being considered for further development of hydropower and irrigation aiming to meet economic, political and ecological goals. Complex river basins serve many needs so how should the different proposed groupings of reservoirs and their operations be evaluated? How should uncertainty about future supply and demand conditions be factored in? What reservoir designs can meet multiple goals and perform robustly in a context of global change? We propose an optimized multi-criteria screening approach to identify best performing designs, i.e., the selection, size and operating rules of new reservoirs within multi-reservoir systems in a context of deeply uncertain change. Reservoir release operating rules and storage sizes are optimized concurrently for each separate infrastructure design under consideration across many scenarios representing plausible future conditions. Outputs reveal system trade-offs using multi-dimensional scatter plots where each point represents an approximately Pareto-optimal design. The method is applied to proposed Blue Nile River reservoirs in Ethiopia, where trade-offs between capital costs, total and firm energy output, aggregate storage and downstream irrigation and energy provision for the best performing designs are evaluated. The impact of filling period for large reservoirs is considered in a context of hydrological uncertainty. The approach is also applied to the Koshi basin in Nepal where combinations of hydropower storage and run-of-river dams are being considered for investment. We show searching for investment portfolios that meet multiple objectives provides stakeholders with a rich view on the trade-offs inherent in the nexus and how different investment bundles perform differently under plausible futures. Both case-studies show how the proposed approach helps explore and understand the implications of investing in new dams in a global change context.

  18. National Dam Inspection Program. North Arrowhead Lake Dam (NDI ID PA 00743, PA DER 45-246), Delaware River Basin, Unnamed Tributary of Trout Creek, Pennsylvania. Phase I Inspection Report

    DTIC Science & Technology

    1981-08-01

    junction with the concreto discharge apron. 7. Irreyular surfaces on the dam and levee should be regraded and back- filled with suitable compacted...to good aquifer. Glacial deposits occurring in the valley floor are quite permeable and act as excellent sources of groundwater and recharge to the

  19. National Dam Inspection Program. Warner Dam (NDI Number PA 00975, PennDER Number 58-71), Susquehanna River Basin, Tributary of Snake Creek, Susquehanna County, Pennsylvania. Phase I Inspection Report

    DTIC Science & Technology

    1981-08-01

    the state, into the Marine Beds, the Catskill Formation and the Oswayo Formation. The rocks underlying the dam most likely belong to the Catskill Forma...tion. This formation is composed chiefly of red to brownish shales and sandstones, including gray and greenish sandstone tongues named Elk Mountain

  20. 2. 'SANTA ANA RIVER AT CHINO CREEK, RIVERSIDE COUNTY.' This ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. 'SANTA ANA RIVER AT CHINO CREEK, RIVERSIDE COUNTY.' This is an oblique aerial view to the north, looking over the flooded fields between Chino Creek and the Santa Ana River, just upstream of the Prado Dam site. File number written on negative: R & H 80 024. - Prado Dam, Santa Ana River near junction of State Highways 71 & 91, Corona, Riverside County, CA

  1. National Dam Inspection Report. Lake Ondawa Dam (NDI ID Number PA-517 DER ID Number 8-28) Susquehanna River Basin, Tributary Bentley Creek, Bradford County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1981-04-01

    i " ’ i - - ~ ~, ,, -’ NU !|I ’ hs nI(I’ C;i o dd R / ,\\I C II " I . . . ../ 4P ’dN DAM SUAR REE DA AN LAE DAWA DA Ds , A". ’’ E ’ -i A~ F ,,, vat.. 1, P Codd,,4 014, 14, "I, C Tw 1- 04,shot *./A -e Ds I

  2. National Dam Inspection Program, Spring Mill Dam (NDS I.D. Number PA 00785 DER I.D. Number 39-1), Delaware River Basin, Spring Creek, Lehigh County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1980-03-01

    include a method of warning water treatment plant personnel if high flows are expected and provisions for evacuating these people in the event of an...21.5 feet below the spillway crest, which admit water into the chamber from which the flow is carried through a 16 inch main to the water treatment plant downstream...34 hazard classification is assigned consistent with the dam’s location above a water treatment plant and the potential to cause economic loss and possible

  3. National Dam Inspection Program. Lake Timberline Dam (NDI Number PA 00977, PennDER Number 58-125), Susquehanna River Basin, Tributary of Choconut Creek, Susquehanna County, Pennsylvania. Phase I Inspection Report

    DTIC Science & Technology

    1981-08-01

    group has been subdivided in other sections of the state into the Marine Beds, the Catskill Formation, and the Oswayo Formation. The rocks underlying...the dam are most likely of the Catskill Formation. This formadion is composed chiefly of red to brownish shales and sandstones; including gray and...greenish sandstone tongues named Elk Mountain , Honesdale, Shohola, and Delaware River in the east. II WUNTY 401 Chocfjný ory Gro" no’ok " it Lanes dot

  4. National Dam Inspection Program. Lake Jamie Dam (NDI ID Number PA-00778, DER ID Number 45-220). Delaware River Basin, Leavitt Branch of Brodhead Creek, Monroe County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1980-06-01

    the reservoir. It is a natural low area that discharges into Spruce Mountain Run. The various features of the dam are shown on the Photographs in...Construction was due to start in the late summer of 1955, when Tropical Storm Diane occurred. The Owner believed the contractor was called " Mountain ...spillway discharge flows downstream in Spruce Mountain Run. 1.3 Pertinent Data a. Drainage Area. (square miles) 0.8 b. Discharge at Damsite. (cfs.) Maximum

  5. Environmental and Water Quality Operational Studies. Effects of Flow Alterations on Trout, Angling, and Recreation in the Chattahoochee River between Buford Dam and Peachtree Creek.

    DTIC Science & Technology

    1986-08-01

    39180-0631 0 0 0 0 0 0 0 0 0 0 0 0 Unclassified SECURITY CLASSIFICATION OF THIS PAGE r’I,.,, Dst. Entered) REPORT DOCUMENTATION PAGE READ INSTRUCTIONS...releases can cause pass- age problems through the shoal areas for canoeists. Thus, canoeing in the major reach between Morgan Falls Dam and the...carp C A Ericymba buccata--silverjaw minnow R Nocomis leptocephalus- -bluehead chub R Notemigonus crysoleucas--golden R shiner Catostomidae --suckers

  6. 1. EXTERIOR OVERVIEW SHOWING BISHOP CREEK PLANT 4 RESIDENTIAL COMPLEX. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. EXTERIOR OVERVIEW SHOWING BISHOP CREEK PLANT 4 RESIDENTIAL COMPLEX. BUILDING 122 IS VISIBLE AT PHOTO CENTER. PLANT 5 INTAKE DAM AT PHOTO LEFT. VIEW TO WEST. - Bishop Creek Hydroelectric System, Plant 4, Worker Cottage, Bishop Creek, Bishop, Inyo County, CA

  7. 1. EXTERIOR OVERVIEW SHOWING BISHOP CREEK PLANT 4 RESIDENTIAL COMPLEX. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. EXTERIOR OVERVIEW SHOWING BISHOP CREEK PLANT 4 RESIDENTIAL COMPLEX. BUILDING 113 IS VISIBLE AT RIGHT PHOTO CENTER. PLANT 5 INTAKE DAM AT PHOTO LEFT. VIEW TO WEST. - Bishop Creek Hydroelectric System, Plant 4, Worker Cottage, Bishop Creek, Bishop, Inyo County, CA

  8. 1. EXTERIOR OVERVIEW SHOWING BISHOP CREEK PLANT 4 RESIDENTIAL COMPLEX. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. EXTERIOR OVERVIEW SHOWING BISHOP CREEK PLANT 4 RESIDENTIAL COMPLEX. ROOF OF BUILDING 105 IS VISIBLE IN UPPER PHOTO CENTER. PLANT 5 INTAKE DAM AT PHOTO LEFT. VIEW TO WEST. - Bishop Creek Hydroelectric System, Plant 4, Worker Cottage, Bishop Creek, Bishop, Inyo County, CA

  9. View of Lake Sabrina Dam showing wooden planks along the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of Lake Sabrina Dam showing wooden planks along the upstream face and concrete base added in 1916/1917 and showing the iron grating covering upstream side of outlet structure is visible at lower photo center, view northeast - Bishop Creek Hydroelectric System, Plant 2, Lake Sabrina Dam, Bishop Creek, Bishop, Inyo County, CA

  10. View of Lake Sabrina Dam and dry Lake Sabrina Basin ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of Lake Sabrina Dam and dry Lake Sabrina Basin with the upstream side of the outlet structure visible at photo center, view to north-northwest - Bishop Creek Hydroelectric System, Plant 2, Lake Sabrina Dam, Bishop Creek, Bishop, Inyo County, CA

  11. National Dam Inspection Program. Jennings Pond Dam (NDI I.D. PA-0891 DER I.D. 066-012) Susquehanna River Basin, Little Mehoopany Creek, Wyoming County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1981-03-19

    CdeS ii i~ Aval i and/’r--PC ieesah r Assessment - Jennings Pond Dam 3. Around-the-clock surveillance should be provided during unusually heavy runoff...of upstream rock fill is unknown Cutoff Concrete wall Grout curtain Unknown h. Regulating Outlet Type 22-inch pipe Length 50+ feet Closure Upstream...concrete conduit controlled by a gate on the upstream end. A stem supported by a steel structure is used to manually operate the gate. The pipe extends

  12. National Dam Inspection Program. Mosquito Run Dam (NDI Number PA01012, PennDER Number 41-2), Susquehanna River Basin, Mosquito Creek, Lycoming County, Pennsylvania. Phase I Inspection Report

    DTIC Science & Technology

    1981-08-01

    operational measures are recommended to be undertaken by the owner: 1) Develop a detailed emergency operation and warning system. 2) During periods of unusually...system. 2) During periods of unusually heavy rainfai!, provide around-the-clock surveillance of the dam. 3) When warning of a storm of major...Approximately Four Miles Pho Soo Legend, Next Pav -Ar AL GEOLOGY MAP LEGEND SILURIAN Tunu’t-owiiy "I"l~ l L . Wills C~reetk F~ormation - h.1, , S’d A

  13. National Dam Safety Program. Leatherwood Creek Number 2A (Inventory Number VA 08905), Roanoke River Basin, Henry County, Virginia. Phase I Inspection Report.

    DTIC Science & Technology

    1981-07-01

    structure based on its height and maxinin lake storage potential as defined in Peference 1, Appendix VI. 1.2.4 Hazard Classification: The dam is located...dwellings. -16- SECTION 4 - OPERATIONAL PROCEDURES 4.1 Procedures: The normal storage pool is elevation 782.5 msl or 0.3 ft above the crest of the principal...di.izharge data were utilized t< tk~t, c<x:ti r.c; sin :a-pt. Flxxis were routed through the -. i r tu p icip spi iway discharge up to a pool storage

  14. Multi-source data fusion and modeling to assess and communicate complex flood dynamics to support decision-making for downstream areas of dams: The 2011 hurricane irene and schoharie creek floods, NY

    NASA Astrophysics Data System (ADS)

    Renschler, Chris S.; Wang, Zhihao

    2017-10-01

    In light of climate and land use change, stakeholders around the world are interested in assessing historic and likely future flood dynamics and flood extents for decision-making in watersheds with dams as well as limited availability of stream gages and costly technical resources. This research evaluates an assessment and communication approach of combining GIS, hydraulic modeling based on latest remote sensing and topographic imagery by comparing the results to an actual flood event and available stream gages. On August 28th 2011, floods caused by Hurricane Irene swept through a large rural area in New York State, leaving thousands of people homeless, devastating towns and cities. Damage was widespread though the estimated and actual floods inundation and associated return period were still unclear since the flooding was artificially increased by flood water release due to fear of a dam break. This research uses the stream section right below the dam between two stream gages North Blenheim and Breakabeen along Schoharie Creek as a case study site to validate the approach. The data fusion approach uses a GIS, commonly available data sources, the hydraulic model HEC-RAS as well as airborne LiDAR data that were collected two days after the flood event (Aug 30, 2011). The aerial imagery of the airborne survey depicts a low flow event as well as the evidence of the record flood such as debris and other signs of damage to validate the hydrologic simulation results with the available stream gauges. Model results were also compared to the official Federal Emergency Management Agency (FEMA) flood scenarios to determine the actual flood return period of the event. The dynamic of the flood levels was then used to visualize the flood and the actual loss of the Old Blenheim Bridge using Google Sketchup. Integration of multi-source data, cross-validation and visualization provides new ways to utilize pre- and post-event remote sensing imagery and hydrologic models to better

  15. 76 FR 14959 - Fall Creek Hydro, LLC; Notice of Application Tendered for Filing With the Commission and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-18

    ... downstream fish passage) that would include, among other things, Eicher fish screens, steel pipes, multi... Creek Dam Hydroelectric Project. f. Location: The proposed project would be constructed at the existing U.S. Army Corps of Engineers' (Corps) Fall Creek Dam located on Fall Creek near the towns of...

  16. 6. VIEW SHOWING CREST OF DAM AND OUTLET GATE WHEEL, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. VIEW SHOWING CREST OF DAM AND OUTLET GATE WHEEL, STEM AND STEM GUIDE, LOOKING SOUTHEAST - High Mountain Dams in Upalco Unit, Milk Lake Dam, Ashley National Forest, 9.4 miles Northwest of Swift Creek Campground, Mountain Home, Duchesne County, UT

  17. 20. VIEW FROM DOWNSTREAM SIDE OF DAM SHOWING BUTTS OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    20. VIEW FROM DOWNSTREAM SIDE OF DAM SHOWING BUTTS OF LOGS PROJECTING BETWEEN CROSS LOGS. FREQUENTLY WHOLE TREES WERE USED IN CONSTRUCTING THESE DAMS. THE BRANCHES WERE PLACED UPSTREAM AND COVERED WITH EARTH AND STONE TO ANCHOR THEM. Photographed November 6, 1935. - Forge Creek Dam-John Cable Mill, Townsend, Blount County, TN

  18. Data collection and documentation of flooding downstream of a dam failure in Mississippi

    USGS Publications Warehouse

    Van Wilson, Jr.; ,

    2005-01-01

    On March 12, 2004, the Big Bay Lake dam failed, releasing water and affecting lives and property downstream in southern Mississippi. The dam is located near Purvis, Mississippi, on Bay Creek, which flows into Lower Little Creek about 1.9 miles downstream from the dam. Lower Little Creek flows into Pearl River about 16.9 miles downstream from the dam. Knowledge of the hydrology and hydraulics of floods caused by dam breaks is essential to the design of dams. A better understanding of the risks associated with possible dam failures may help limit the loss of life and property that often occurs downstream of a dam failure. The USGS recovered flood marks at the one crossing of Bay Creek and eight crossings of Lower Little Creek. Additional flood marks were also flagged at three other bridges crossing tributaries where backwater occurred. Flood marks were recovered throughout the stream reach of about 3/4 to 15 miles downstream of the dam. Flood marks that were flagged will be surveyed so that a flood profile can be documented downstream of the Big Bay Lake dam failure. Peak discharges are also to be estimated where possible. News reports stated that the peak discharge at the dam was about 67,000 cubic feet per second. Preliminary data suggest the peak discharge from the dam failure attenuated to about 13,000 cubic feet per second at Lower Little Creek at State Highway 43, about 15 miles downstream of the dam.

  19. 8. Inverted siphon structure carrying ditch flow under Willow Creek, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. Inverted siphon structure carrying ditch flow under Willow Creek, looking southwest - Natomas Ditch System, Blue Ravine Segment, Juncture of Blue Ravine & Green Valley Roads, Folsom, Sacramento County, CA

  20. 7. Inverted siphon structure carrying ditch flow under Willow Creek, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Inverted siphon structure carrying ditch flow under Willow Creek, looking east - Natomas Ditch System, Blue Ravine Segment, Juncture of Blue Ravine & Green Valley Roads, Folsom, Sacramento County, CA

  1. 32. Otter Lake Dam. View from downstream show how the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    32. Otter Lake Dam. View from downstream show how the dam blends into its environment. Looking east-northeast. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  2. Steel Creek fish, L-Lake/Steel Creek Biological Monitoring Program, January 1986--December 1991

    SciTech Connect

    Sayers, R.E. Jr.; Mealing, H.G. III

    1992-04-01

    The Savannah River Site (SRS) encompasses 300 sq mi of the Atlantic Coastal plain in west-central South Carolina. The Savannah River forms the western boundary of the site. Five major tributaries of the Savannah River -- Upper Three Runs Creek, Four Mile Creek, Pen Branch, Steel Creek, and Lower Three Runs Creek -- drain the site. All but Upper Three Runs Creek receive, or in the past received, thermal effluents from nuclear production reactors. In 1985, L Lake, a 400-hectare cooling reservoir, was built on the upper reaches of Steel Creek to receive effluent from the restart of L-Reactor, and protect the lower reaches from thermal impacts. The lake has an average width of approximately 600 m and extends along the Steel Creek valley approximately 7000 m from the dam to the headwaters. Water level is maintained at a normal pool elevation of 58 m above mean sea level by overflow into a vertical intake tower that has multilevel discharge gates. The intake tower is connected to a horizontal conduit that passes through the dam and releases water into Steel Creek. The Steel Creek Biological Monitoring Program was designed to meet environmental regulatory requirements associated with the restart of L-Reactor and complements the Biological Monitoring Program for L Lake. This extensive program was implemented to address portions of Section 316(a) of the Clean Water Act. The Department of Energy (DOE) must demonstrate that the operation of L-Reactor will not significantly alter the established aquatic ecosystems.

  3. VIEW OF DOWNSTREAM SIDE OF TUMALO DIVERSION DAM AND SPILLWAY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    VIEW OF DOWNSTREAM SIDE OF TUMALO DIVERSION DAM AND SPILLWAY, WITH FISH LADDER TO RIGHT OF VIEW. FROM WEST BANK OF TUMALO CREEK. LOOKING SOUTHWEST - Tumalo Irrigation District, Tumalo Project, West of Deschutes River, Tumalo, Deschutes County, OR

  4. 5. View of Sterling Creek Marsh at low tide showing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. View of Sterling Creek Marsh at low tide showing the lining of the bottom of the marsh, with dam in background - Richmond Hill Plantation, Sterling Creek Marsh, East of Richmond Hill on Ford Neck Road, Richmond Hill, Bryan County, GA

  5. 121. MCMULLEN CREEK DRAW, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    121. MCMULLEN CREEK DRAW, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; OUTLET SIDE OF CREEK, SOUTH VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  6. 101. DRY CREEK SPILL, MURTAUGH LAKE, TWIN FALLS COUNTY, SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    101. DRY CREEK SPILL, MURTAUGH LAKE, TWIN FALLS COUNTY, SOUTH OF MURTAUGH, IDAHO; NORTHEAST VIEW OF DRY CREEK OUTLET. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  7. 122. MCMULLEN CREEK, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    122. MCMULLEN CREEK, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; INLET SIDE OF THE CREEK, ENTRANCE INTO THE HIGH LINE CANAL, SOUTH VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  8. 123. MCMULLEN CREEK, HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    123. MCMULLEN CREEK, HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; SOUTH VIEW OF THE CREEK EMPTYING INTO THE HIGH LINE CANAL. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  9. 119. COTTONWOOD CREEK SIPHON, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    119. COTTONWOOD CREEK SIPHON, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; INLET SIDE OF COTTONWOOD CREEK, SOUTH VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  10. 115. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    115. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY IDAHO; WEST VIEW OF SIPHON CROSSING ROCK CREEK. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  11. 103. DRY CREEK SPILL, TWIN FALLS COUNTY, SOUTH OF MURTAUGH, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    103. DRY CREEK SPILL, TWIN FALLS COUNTY, SOUTH OF MURTAUGH, IDAHO; INLET SIDE TO DRY CREEK, SOUTH VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  12. Army Corps of Engineers: Actions Needed to Improve Cost Sharing for Dam Safety Repairs

    DTIC Science & Technology

    2015-12-01

    according to Corps officials, the “ karst ” limestone upon which the Center Hill and Wolf Creek dams are built is prone to increasing seepage over time...at Wolf Creek were inadequate to control seepage in the “ karst ” geology beneath the dam. In addition, according to this report, installation of a

  13. 17. Photocopy of a photographca. 1920showing newly completed Argonaut Dam ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. Photocopy of a photograph--ca. 1920--showing newly completed Argonaut Dam near Jackson, CA. Structure was built by the Argonaut Mining Company. Courtesy Mr. Charles Allan Whitney. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  14. 78 FR 16849 - Fall Creek Hydro, LLC, Oregon; Notice of Availability of Draft Environmental Assessment

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-19

    ... Energy Regulatory Commission Fall Creek Hydro, LLC, Oregon; Notice of Availability of Draft Environmental... construct the Fall Creek Dam Hydroelectric Project and has prepared a draft environmental assessment (EA). The proposed 10-megawatt project would be located on Fall Creek in Lane County, Oregon, near the...

  15. 19. Photocopy of a photographca. 1923showing the Anyox Dam in ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    19. Photocopy of a photograph--ca. 1923--showing the Anyox Dam in British Columbia, Canada, just prior to completion of final arching. A sudden storm filled the reservoir and water began pouring over the uncompleted arch-ring; the dam was unhurt by the unexpected deluge and Eastwood used this photo as evidence of the great strength of his designs. Courtesy Mr. Charles Allan Whitney.20. DISTANT HELICOPTER VIEW TO SOUTHEAST UP LITTLE ROCK CREEK CANYON, WITH DAM AND RESERVOIR AT RIGHT CENTER. PALMDALE-LITTLEROCK DITCH, MARKED BY DENSE VEGETATION, CROSSES ROAD AT LOWER CENTER. - Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

  16. 1. View looking upstream (southwest) at diversion dam. Water enters ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. View looking upstream (southwest) at diversion dam. Water enters half-round flume on right. Break in diversion structure provides a view of water flow in flume during the high water runoff in June. - Rock Creek Hydroelectric Project, Rock Creek, Baker County, OR

  17. Geology of the Teakettle Creek watersheds

    Treesearch

    Robert S. LaMotte

    1937-01-01

    The Teakettle Creek Experimental Watersheds lie for the most part on quartzites of probable Triassic age. However one of the triplicate drainages has a considerable acreage developed on weathered granodiorite. Topography is relatively uniform and lends itself to triplicate watershed studies. Locations for dams are suitable if certain engineering precautions...

  18. Traveltime characteristics of Gore Creek and Black Gore Creek, upper Colorado River basin, Colorado

    USGS Publications Warehouse

    Gurdak, Jason J.; Spahr, Norman E.; Szmajter, Richard J.

    2002-01-01

    , discharges ranged from 82 cubic feet per second (ft3/s) at Black Gore Creek near Minturn (U.S. Geological Survey station number 09066000) to 724 ft3/s at Gore Creek at mouth near Minturn (U.S. Geological Survey station number 09066510), whereas during the September traveltime measurements, discharges ranged from 3.6 ft3/s at Black Gore Creek near Minturn to 62 ft3/s at Gore Creek at mouth near Minturn. Cumulative traveltimes for the peak dye concentration during the May traveltime measurements ranged from 3.45 hours (site 1 to site 3) in Black Gore Creek to 2.50 hours (site 8 to site 12) in Gore Creek, whereas cumulative traveltimes for the peak dye concentration during the September traveltime measurements ranged from 15.33 hours (site 1 to site 3) in Black Gore Creek to 8.65 hours (site 8 to site 12) in Gore Creek. During the September dye injections, beaver dams on Black Gore Creek, between site 1 and the confluence with Gore Creek, substantially delayed movement of the rhodamine WT. Estimated traveltimes were developed using relations established from linear-regression methods of relating measured peak traveltime to discharge during those measurements, which were obtained at Black Gore Creek near Minturn and Gore Creek at mouth near Minturn. Resulting estimated peak traveltimes for Black Gore Creek (sites 1 to 5) ranged from 5.4 to 0.4 hour for 20 to 200 ft3/s and for Gore Creek (sites 5 to 12), 5.5 to 0.3 hour for 20 to 800 ft3/s. Longitudinal-dispersion coefficients that were calculated for selected stream reaches ranged from 17.2 square feet per second at 4 ft3/s between sites 2 and 3 to 650 square feet per second at 144 ft3/s between sites 7 and 8. Longitudinal-dispersion coefficients are necessary variables for future stream-contaminant modeling in the Gore Creek watershed.

  19. 4. Side view of lower dam showing crest, overspill and ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Side view of lower dam showing crest, overspill and apron. Photograph taken from east side of Millstone Creek. VIEW SOUTHWEST - Loleta Recreation Area, Lower Dam, 6 miles Southeast of interesection of State Route 24041 & State Route 66, Loleta, Elk County, PA

  20. 3. Side view of lower dam showing crest, overspill and ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. Side view of lower dam showing crest, overspill and apron. Photograph taken from west side of Millstone Creek. VIEW NORTHEAST - Loleta Recreation Area, Lower Dam, 6 miles Southeast of interesection of State Route 24041 & State Route 66, Loleta, Elk County, PA

  1. 6. View of lower dam masonry pier which houses the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. View of lower dam masonry pier which houses the sluice. Photograph taken from cut stone apron edging in Millstone Creek. VIEW WEST. - Loleta Recreation Area, Lower Dam, 6 miles Southeast of interesection of State Route 24041 & State Route 66, Loleta, Elk County, PA

  2. 3. LOOKING NORTHEAST ACROSS DAM TO GATE CONTROLS, CABLE CAR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. LOOKING NORTHEAST ACROSS DAM TO GATE CONTROLS, CABLE CAR ANCHORING, AND, AT RIGHT, HEAD WORKS AT PORTAL OF TUNNEL ZERO FOR DIVERSION OF WATER TO BEAR CREEK/SANTA ANA RIVER CONFLUENCE POOL. - Santa Ana River Hydroelectric System, Santa Ana River Diversion Dam, Redlands, San Bernardino County, CA

  3. Effects of variations in flow characteristics through W.P. Franklin Lock and Dam on downstream water quality in the Caloosahatchee River Estuary and in McIntyre Creek in the J.N. “Ding” Darling National Wildlife Refuge, southern Florida, 2010–13

    USGS Publications Warehouse

    Booth, Amanda C.; Soderqvist, Lars E.; Knight, Travis M.

    2016-05-17

    The U.S. Geological Survey studied water-quality trends at the mouth of McIntyre Creek, an entry point to the J.N. “Ding” Darling National Wildlife Refuge, to investigate correlations between flow rates and volumes through the W.P. Franklin Lock and Dam and water-quality constituents inside the refuge from March 2010 to December 2013. Outflow from Lake Okeechobee, and flows from Franklin Lock, tributaries to the Caloosahatchee River Estuary, and the Cape Coral canal system were examined to determine the sources and quantity of water to the study area. Salinity, temperature, dissolved-oxygen concentration, pH, turbidity, and chromophoric dissolved organic matter fluorescence (FDOM) were measured during moving-boat surveys and at a fixed location in McIntyre Creek. Chlorophyll fluorescence was also recorded in McIntyre Creek. Water-quality surveys were completed on 20 dates between 2011 and 2014 using moving-boat surveys.Franklin Lock contributed the majority of flow to the Caloosahatchee River. Between 2010 and 2013, the monthly mean flow rate at Franklin Lock ranged from 29 cubic feet per second in May 2011 to 10,650 cubic feet per second in August 2013. Instantaneous near-surface salinity in McIntyre Creek ranged from 12.9 parts per thousand on September 26, 2013, to 37.9 parts per thousand on June 27, 2011. Salinity in McIntyre Creek decreased with increasing flow rate through Franklin Lock. Flow rates through Franklin Lock explained 61 percent of the variation in salinity in McIntyre Creek. Salinity data from moving-boat surveys also indicate that an increase in flow rate at Franklin Lock decreases salinity in the Caloosahatchee River Estuary, and a reduction or elimination in flow increases salinity. The FDOM in McIntyre Creek was positively correlated with flow at Franklin Lock, and 54 percent of the variation in FDOM can be attributed to the flow rate through Franklin Lock. Data from moving-boat surveys indicate that FDOM increases when flow volume from

  4. 106. DAM EARTH DIKE SUBMERSIBLE DAMS & DIKE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    106. DAM - EARTH DIKE - SUBMERSIBLE DAMS & DIKE CONN. AT MOVABLE DAM (ML-8-52/2-FS) March 1940 - Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

  5. 30. Otter Lake Dam. View shows rustic stone facade of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    30. Otter Lake Dam. View shows rustic stone facade of the dam. The stepped face of the dam gives the illusion of a natural cascade. Facing southeast. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  6. Caspar Creek

    Treesearch

    Robert R. Ziemer

    2001-01-01

    The USDA Forest Service Pacific Southwest Research Station and the California Department of Forestry and Fire Protection have gauged streamflow, and suspended sediment and precipitation since 1962 in the 473 ha North Fork and the 424 ha South Fork of the 2167 ha Caspar Creek in the Jackson Demonstation State Forest in northwestern California. Within the two Caspar...

  7. National Dam Safety Program. Middle Fork Slurry Impoundment (ID No. VA-16708), Tennessee River Basin, Middle Fork of Dumps Creek, Russell County, Virginia. Phase I inspection report. Final report

    SciTech Connect

    Martin, R.E.

    1980-03-01

    The purpose of a Phase I investigation is to identify expeditiously those dams which may pose hazards to human life or property. The assessment of the general conditions of the dam is based upon available data and visual inspections. Detailed investigations and analyses involving topographic mapping, subsurface investigations, testing, and detailed computational evaluations are beyond the scope of Phase I investigation; however, the investigation is intended to identify any need for such studies. Based upon the field conditions at the time of the field inspection and all available engineering data, the Phase I report addresses the hydraulic, hydrologic, geologic, geotechnic, and structural aspects of the dam. The engineering techniques employed give a reasonably accurate assessment of the conditions of the dam. It should be realized that certain engineering aspects cannot be fully analyzed during a Phase I inspection. Assessment and remedial measures in the report include the requirement of additional indepth study when necessary. Phase I reports include project information of the dam and appurtenances, all existing engineering data, operational procedures, hydraulic/hydrologic data of the watershed, dam stability, visual inspection report and an assessment including required remedial measures.

  8. Does damming of the Colorado River affect the nursery area of blue shrimp Litopenaeus stylirostris (Decapoda: Penaeidae) in the Upper Gulf of California?

    PubMed

    Aragón-Noriega, E A; Calderón-Aguilera, L E

    2000-12-01

    After damming the Colorado River the freshwater flow was reduced to 1% of its virgin flow to the Upper Gulf of California (UGC). The ecological effects need to be properly documented. The UGC is the nursery area for Litopenaeus stylirostris, the most profitable fishery in the zone. In order to know the relative abundance of L. stylirostris postlarval stage we conducted a sampled survey every 14 days in 1993, 1994 and 1997, plus an intensive sampling during a complete tide cycle in July 1995 and 1996. We did 10 min trawls each hour during the flood tide. Relative abundance of postlarvae was higher (p < 0.05) in those years when freshwater flow reached the UGC.

  9. Cave Buttes Dam Master Plan, Phoenix, Arizona and Vicinity (Including New River).

    DTIC Science & Technology

    1982-03-01

    Cave Buttes Dam is on Cave Creek, 0.7 mile (1.1 kin ) south (downstream) of the existing Cave Creek Dam and about 18 miles (30 km) north of the...important tributaries. Cave Creek flows in a general southwesterly direction from its headwaters -to the dam, a distance of about 25 mi (410 kin ). D...History of the United States, U.S. Department of Commerce, 1970). An evaluation of the geologic and seismic conditions within a 150-mi (2410 kin

  10. National Dam Inspection Program. Silt Pond B, (NDI Number PA 00824 PENN DER Number 63-77) Ohio River Basin, Pigeon Creek, Washington County, Pennsylvania. United States Steel Corporation, Raw Materials Division. Phase I Inspection Report.

    DTIC Science & Technology

    1981-03-01

    Classification: Silt Pond B is classified as a "high" hazard dam. In the event of a dam failure , at least seven inhabited dwellings could be subjected to...emergency pro- cedure to alert or evacuate downstream residents upon threat of a dam failure . 4.5 EVALUATION The maintenance program should be continued...i 4-4 4-) 4-.) .1 -4 C3C -4 0OC 0L b3 L. >- LC o L 0) 4)-) 4. C -)Q)V 10 cO C 30 &.CV0 .- ) a 0.,I ) .0 L u C.-li CL .4L0 &.( tO a) 0 C) 0. mLcC 4z3

  11. National Dam Inspection Program. SCS PA 477 (NDS I.D. Number PA 00720, DER I.D. Number 6-457), Delaware River Basin, Tributary of Mill Creek. Berks County, Pennsylvania. Phase I Inspection Report,

    DTIC Science & Technology

    1980-01-01

    condition of the dam, the only recommendations made beyond routine maintenance of the dam are: 1. The multiflora rose should be removed from the...drainage swale between the embankment and the highway to prevent the spread of the multiflora rose to the embankment. ii " ’-1 I’P" " " """ z i,’i .. K ’li...worn through the embankment cover, as shown in Photograph No. 8, Appendix C, but no significant erosion has resulted. Multiflora rose is starting to

  12. Lower Walnut Creek Restoration

    EPA Pesticide Factsheets

    Lower Walnut Creek Restoration Project will restore and enhance coastal wetlands along southern shoreline of Suisun Bay from Suisun Bay upstream along Walnut Creek, improving habitat quality, diversity, and connectivity along three miles of creek channel.

  13. 71. Meadow Creek Culvert. This is an example of a ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    71. Meadow Creek Culvert. This is an example of a triple arch concrete box culvert with stone facing mimicking rigid frame structures. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  14. 27. Otter Creek Bridge #5. Detail of the interior abutment ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    27. Otter Creek Bridge #5. Detail of the interior abutment wall. Wingwall, and facade thickness. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  15. Hydrologic data for Mountain Creek, Trinity River basin, Texas, 1976

    USGS Publications Warehouse

    Buckner, H.D.

    1978-01-01

    The total drainage area of Mountain Creek, Texas, is 304 sq mi. The stream-gaging stations on Mountain Creek near Cedar Hill and Walnut Creek near Mansfield provide hydrologic data to define runoff characteristics from small drainage basins. They also serve as index stations for inflow into the reservoir and provide operational data for the reservoir. In addition, the station Walnut Creek near Mansfield is equipped with a recording rain gage. The stage station near Duncanville provides data pertinent to operation of the gates in the Mountain Creek Lake Dam. The reservoir-content station at the dam provides records of reservoir state and contents. The stream-gaging station Mountain Creek at Grand Prairie provides records of outflow from Mountain Creek Lake and the basin. Basin outflow for the 1976 water year was 78,660 acre-feet which is only 1,140 acre-feet above the 16-year (1960-76) average of 77,520 acre-feet. Storage in Mountain Creek Lake showed a net gain of 760 acre-feet during the water year. Rainfall over the study area for the 1976 water year was about 32 inches, which is about 2 inches below the long-term mean rainfall (1960-75) for the area. (Woodard-USGS)

  16. 107. DAM EARTH DIKE SUBMERSIBLE DAMS PLANS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    107. DAM - EARTH DIKE - SUBMERSIBLE DAMS - PLANS & SECTIONS (ML-8-52/3-FS) March 1940 - Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

  17. Paleoflood investigations for Cherry Creek Basin, Eastern Colorado

    USGS Publications Warehouse

    Jarrett, R.D.

    2004-01-01

    In 1950 when Cherry Creek dam, which is located in Denver. Colorado, was completed, the design flood was 5,126 m3/s. Two recent probable maximum flood (PMF) estimates for the dam range from 14,840 to 18,750 m 3/s demonstrate the uncertainty in estimating extreme flooding in eastern Colorado. PMF difference is due in part to a lack of extreme rainfall and flood data in eastern Colorado. A paleoflood study was conducted to assist dam-safety officials in assessing the risk of large floods in Cherry Creek basin. An envelope curve encompassing maximum contemporary floods (19 sites) and paleofloods (99 sites) was developed for Cherry Creek basin streams; paleoflood data reflect maximum flooding during the last few hundred to many thousands of years. Maximum paleofloods in Cherry Creek range from about 1,050 m 3/s near Franktown (in about 5,000 to at least 10,000 years), about 2,100 m3/s near Melvin (in about 1,500 to 5,000 years), and about 2,270 m3/s at Cherry Creek Reservoir (also in about 1,500 to 5,000 years). Flood-frequency relations for Cherry Creek, which incorporate paleoflood data, indicate the 10,000-year flood (10-4 annual exceedence probability) ranges from about 1,200 m3/s (near Franktown) to about 2,200 m3/s (near Melvin). PMF estimates are about six to eight times larger than paleofloods in Cherry Creek basin. Additional research in flood hydrometeorology is needed to help dam safety officials evaluate potential safety problems related to large floods in Cherry Creek basin. Copyright ASCE 2004.

  18. Persistence of historical logging impacts on channel form in mainstem North Fork Caspar Creek

    Treesearch

    Michael B. Napolitano

    1998-01-01

    The old-growth redwood forest of North Fork Caspar Creek was clear-cut logged between 1860 and 1904. Transportation of logs involved construction of a splash dam in the headwaters of North Fork Caspar Creek. Water stored behind the dam was released during large storms to enable log drives. Before log drives could be conducted, the stream channel had to be prepared by...

  19. National Dam Inspection Program. Stanford Avenue Stormwater Retention Pond (NDI Number PA-01146, DER Number 6-467), Delaware River Basin, Tributary to Wyomissing Creek, Berks County, Pennsylvania. Phase I Inspection Report

    DTIC Science & Technology

    1981-07-01

    refusal and six borings were drilled 10 feet into rock. Laboratory testinq included phvsical properties and compaction tests. Borrow materials from...be given to installing a trash rack at the low level outlet in the event that the fence should fail during a large storm oermitting large debris to...DAM STABILITY SEEPAGE STUDIES MATERIALS INVESTIGATIONS BORING RECORDS LABORATORY Complete records are located in FIELD the Township Engineer’s files

  20. 1. EAGLE CREEK RECREATION AREA, VIEW OF EAGLE CREEK TRAIL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. EAGLE CREEK RECREATION AREA, VIEW OF EAGLE CREEK TRAIL REGISTRY BOOTH. - Historic Columbia River Highway, Eagle Creek Recreation Area, Historic Columbia River Highway at Eagle Creek, Troutdale, Multnomah County, OR

  1. 3. VIEW OF CONTINENTAL EAGLE GIN CO. ACROSS CREEK, TAKEN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. VIEW OF CONTINENTAL EAGLE GIN CO. ACROSS CREEK, TAKEN FROM DAM, LOOKING SOUTH. FROM RIGHT TO LEFT: CUPOLA TOWER ON 1854 CONTINENTAL GIN CO., 1848, 1852, 1912 CONTINENTAL GIN CO. BUILDINGS. - Prattville Manufacturing Company, Number One, 242 South Court Street, Prattville, Autauga County, AL

  2. 124. MCMULLEN CREEK HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    124. MCMULLEN CREEK HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; OVERALL SOUTH VIEW OF DRAW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  3. 113. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    113. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY IDAHO; CLOSE-UP OF INLET SIDE OF SIPHON, NORTHWEST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  4. 126. COTTONWOOD CREEK SIPHON, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    126. COTTONWOOD CREEK SIPHON, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; CLOSE-UP OF OUTLET SIDE OF SIPHON, SOUTH VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  5. 111. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    111. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY IDAHO; OVERALL VIEW OF SIPHON, EAST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  6. 112. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    112. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY IDAHO; OUTLET SIDE, EAST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  7. 118. COTTONWOOD CREEK SPILL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    118. COTTONWOOD CREEK SPILL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; WEST VIEW OF GATES ON HIGH LINE CANAL. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  8. 93. ROCK CREEK SIPHON, LOW LINE CANAL, TWIN FALLS COUNTY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    93. ROCK CREEK SIPHON, LOW LINE CANAL, TWIN FALLS COUNTY SOUTH OF KIMBERLY, IDAHO; OVERALL NORTHEAST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  9. 129. COTTONWOOD CREEK SIPHON, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    129. COTTONWOOD CREEK SIPHON, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; OUTLET SIDE OF SIPHON UNDER CANAL. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  10. 116. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    116. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY IDAHO; CLOSE-UP OF OUTLET, DIVERSION SPILL IN BACKGROUND, WEST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  11. 106. DRY CREEK SPILL, MURTAUGH LAKE, TWIN FALLS COUNTY, SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    106. DRY CREEK SPILL, MURTAUGH LAKE, TWIN FALLS COUNTY, SOUTH OF MURTAUGH, IDAHO; CLOSE-UP OF GATES, NORTHWEST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  12. 114. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    114. ROCK CREEK SIPHON LOW LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY IDAHO; OVERALL VIEW, WEST OF INLET SIDE. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  13. 104. DRY CREEK OUTLET (SPILL), TWIN FALLS COUNTY, SOUTH OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    104. DRY CREEK OUTLET (SPILL), TWIN FALLS COUNTY, SOUTH OF MURTAUGH, IDAHO; OUTLET FOR MURTAUGH LAKE, SOUTHEAST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  14. 117. COTTONWOOD CREEK SPILL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    117. COTTONWOOD CREEK SPILL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; CLOSE-UP OF OUTLET SIDE OF SPILL, SOUTH VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  15. 110. ROCK CREEK SIPHON, LOW LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    110. ROCK CREEK SIPHON, LOW LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; INLET SIDE WEST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  16. Temporary Restoration of Bull Trout Passage at Albeni Falls Dam, 2008 Progress Report.

    SciTech Connect

    Bellgraph, Brian J.

    2009-03-31

    The goal of this project is to provide temporary upstream passage of bull trout around Albeni Falls Dam on the Pend Oreille River, Idaho. Our specific objectives are to capture fish downstream of Albeni Falls Dam, tag them with combination acoustic and radio transmitters, release them upstream of Albeni Falls Dam, and determine if genetic information on tagged fish can be used to accurately establish where fish are located during the spawning season. In 2007, radio receiving stations were installed at several locations throughout the Pend Oreille River watershed to detect movements of adult bull trout; however, no bull trout were tagged during that year. In 2008, four bull trout were captured downstream of Albeni Falls Dam, implanted with transmitters, and released upstream of the dam at Priest River, Idaho. The most-likely natal tributaries of bull trout assigned using genetic analyses were Grouse Creek (N = 2); a tributary of the Pack River, Lightning Creek (N = 1); and Rattle Creek (N = 1), a tributary of Lightning Creek. All four bull trout migrated upstream from the release site in Priest River, Idaho, were detected at monitoring stations near Dover, Idaho, and were presumed to reside in Lake Pend Oreille from spring until fall 2008. The transmitter of one bull trout with a genetic assignment to Grouse Creek was found in Grouse Creek in October 2008; however, the fish was not found. The bull trout assigned to Rattle Creek was detected in the Clark Fork River downstream from Cabinet Gorge Dam (approximately 13 km from the mouth of Lightning Creek) in September but was not detected entering Lightning Creek. The remaining two bull trout were not detected in 2008 after detection at the Dover receiving stations. This report details the progress by work element in the 2008 statement of work, including data analyses of fish movements, and expands on the information reported in the quarterly Pisces status reports.

  17. Steel Creek zooplankton: L Lake/Steel Creek Biological Monitoring Program, January 1986--December 1987

    SciTech Connect

    Starkel, W.M.; Chimney, M.J.

    1988-03-01

    The objectives of this portion of the Steel Creek Biological Monitoring Program were to analyze data on macrozooplankton taxonomy and density in the Steel Creek corridor and swamp/delta, and compare the composition of the post-impoundment macrozooplankton community with pre-impoundment conditions and communities from other stream and swamp systems. The data presented in the report cover the period January 1986 through December 1987. Macrozooplankton samples were collected monthly using an 80 ..mu..m mesh net at Stations 275, 280, and 290 in the Steel Creek corridor and Stations 310, 330, 350, and 370 in the Steel Creek delta/swamp. Macrozooplankton taxa richness was highest at the two Steel Creek corridor stations nearest the L-Lake dam (Stations 275 and 280); mean values were 10.6 and 7.2 taxa collected/month in 1986 vs 12.1 and 12.3 taxa collected/month in 1987. The lowest taxa richness occurred at Steel Creek swamp/delta stations; means ranged from 1.9 to 4.2 taxa collected/month during both years.

  18. 129. Julian Price Memorial Park. Price Lake Dam. A concrete ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    129. Julian Price Memorial Park. Price Lake Dam. A concrete slab bridge crosses the top of the dam impounding a forty-seven acre lake. Looking west. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  19. Bulletins examine dam issues

    SciTech Connect

    Ervine, A.

    1994-12-31

    This month`s Tech Notes includes discussions of bulletins on upstream slope protection of embankment dams, dams and environmental geophysical impacts, rock materials for rockfill dams, and a scathing review of various hydro efforts accross the world.

  20. National Program for Inspection of Non-Federal Dams. Richville Dam (VT 00074) Richelieu River Basin, Shoreham.

    DTIC Science & Technology

    1978-09-01

    crest of the dam axis to about 50 feet downstream of the dam. The bedrock is basically a massively bedded, very hard blue- gray calcitic dolostone ... dolostone is -’-- relatively soluble, minor-solution features in the form of small pits up to one inch deep were observed at a bedrock exposure about 20

  1. Stability analysis of White Oak Dam

    SciTech Connect

    1995-04-11

    White Oak Dam is located in the White Oak Creek watershed which provides the primary surface drainage for Oak Ridge National Laboratory. A stability analysis was made on the dam by Syed Ahmed in January 1994 which included an evaluation of the liquefaction potential of the embankment and foundation. This report evaluates the stability of the dam and includes comments on the report prepared by Ahmed. Slope stability analyses were performed on the dam and included cases for sudden drawdown, steady seepage, partial pool and earthquake. Results of the stability analyses indicate that the dam is stable and failure of the structure would not occur for the cases considered. The report prepared by Ahmed leads to the same conclusions as stated above. Review of the report finds that it is complete, well documented and conservative in its selection of soil parameters. The evaluation of the liquefaction potential is also complete and this report is in agreement with the findings that the dam and foundation are not susceptible to liquefaction.

  2. Channel changes downstream from a dam

    USGS Publications Warehouse

    Hadley, R.F.; Emmett, W.W.

    1998-01-01

    A flood-control dam was completed during 1979 on Bear Creek, a small tributary stream to the South Platte River in the Denver, Colorado, area. Before and after dam closure, repetitive surveys between 1977 and 1992 at five cross sections downstream of the dam documented changes in channel morphology. During this 15-year period, channel width increased slightly, but channel depth increased by more than 40 percent. Within the study reach, stream gradient decreased and median bed material sizes coarsened from sand in the pools and fine gravel on the riffle to a median coarse gravel throughout the reach. The most striking visual change was from a sparse growth of streamside grasses to a dense growth of riparian woody vegetation.

  3. 5. Aerial view west, Adams Dam Road bottom center, State ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. Aerial view west, Adams Dam Road bottom center, State Route 100 center, duck pond and reservoir center, State Route 100 center right, State Route 92 below center right, Brandywine Creek State Park center bottom. - Winterthur Farms, Intersection State Routes 92 & 100, Intersection State Routes 92 & 100, Winterthur, New Castle County, DE

  4. Dam safety: Morris Sheppard Dam rehabilitation

    SciTech Connect

    Garland, J.D.; Waters, R.H.; Focht, J.A. Jr.

    1995-12-31

    Morris Sheppard Dam is one of the world`s largest flat slab buttress dams. It is located on the Brazos River about 96 km (60 miles) west of Dallas - Fort Worth. Designed by Ambursen Dam Company, the dam was constructed between 1938 and 1941 at a cost of $8.7 million. In 1987, a maximum buttress movement of 114 mm (4.5 inches) was discovered. The dam was successfully rehabilitated between 1987 and 1994 at a cost of $36 million. This paper will describe: (1) the dam`s construction and operational history, (2) the lowering of the reservoir by 3.94 m (13 feet) as an emergency response when the movement was discovered, (3) the initial stabilization of the dam by the addition of relief wells and grouting, (4) the final stabilization using ballast to increase the weight of the dam, (5) the use of actual dam performance as a full-scale, long-term, load test to back-calculate realistic strength parameters, (6) the multiple sets of design stability criteria used to analyze the structure, and (7) the use of model studies to enlarge the dam`s stilling basin and design an emergency spillway to handle the PMF.

  5. DAM Safety and Deformation Monitoring in Dams

    NASA Astrophysics Data System (ADS)

    Kalkan, Y.; Bilgi, S.; Potts, L.; Miiama, J.; Mahgoub, M.; Rahman, S.

    2013-12-01

    Water is the life and necessity to water is increasing day by day with respect to the World population, rising of living standards and destruction of nature. Thus, the importance of water and water structures have been increasing gradually. Dams are among the most important engineering structures used for water supplies, flood controls, agricultural purposes as well as drinking and hydroelectric power. There are about 150.000 large size dams in the World. Especially after the Second World War, higher and larger capacity dams have been constructed. Dams create certain risks like the other manmade structures. No one knows precisely how many dam failures have occurred in the World, whereas hundreds of dam failures have occurred throughout the U.S. history. Some basic physical data are very important for assessing the safety and performance of dams. These are movement, water pressure, seepage, reservoir and tail-water elevations, local seismic activities, total pressure, stress and strain, internal concrete temperature, ambient temperature and precipitation. These physical data are measured and monitored by the instruments and equipment. Dams and their surroundings have to be monitored by using essential methods at periodic time intervals in order to determine the possible changes that may occur over the time. Monitoring programs typically consist of; surveillance or visual observation. These programs on dams provide information for evaluating the dam's performance related to the design intent and expected changes that could affect the safety performance of the dam. Additionally, these programs are used for investigating and evaluating the abnormal or degrading performance where any remedial action is necessary. Geodetic and non-geodetic methods are used for monitoring. Monitoring the performance of the dams is critical for producing and maintaining the safe dams. This study provides some information, safety and the techniques about the deformation monitoring of the

  6. Channel Recovery Following Dam Removal: Lessons From Three Historic Dam Removals of the Middle Atlantic Piedmont

    NASA Astrophysics Data System (ADS)

    Pizzuto, J. E.; Skalak, K. J.; Brown, R.; Tomlinson, J.; Moskalski, S.

    2003-12-01

    To determine the rates and processes of channel recovery following dam removal, we studied 3 sites along Muddy Creek in southeastern Pennsylvania. Garthridge Dam, 12.2 m high and located the farthest downstream, was breached in 1933. Highrock Dam, 1.8 m high and located the farthest upstream, was breached in 1972. Castle Fin Dam, 3.1 m high, was removed in 1997. We surveyed the longitudinal profile and channel cross-sections upstream of the former dam site. We also sampled the bed material and mapped floodplain and channel deposits. Undammed reaches far upstream were used as controls. At all sites, laminated muddy reservoir deposits are still preserved as terraces up to 5 m high bordering the channel. These deposits are persistent and will likely remain in place for decades, if not centuries. In addition, these deposits are a preferred habitat for exotic plant species, which had exceptionally high cover values at all three sites. At Castle Fin, laminated muddy reservoir deposits underlie the channel bed, indicating that the channel has not incised to its predam elevation after 5 years. At the other sites, vertical incision has completely removed fine-grained reservoir deposits from beneath the channel. Bed material is finer grained near the former dam site than at the control reaches at all the sites, and the water surface slope is higher near the former dam site than at the control reaches. These data suggest that, even after many years, channels above locations of removed dams are noticeably different from nearby control reaches, possibly indicating that complete recovery from dam removal is an inherently slow process.

  7. Assessment of suspended-sediment transport, bedload, and dissolved oxygen during a short-term drawdown of Fall Creek Lake, Oregon, winter 2012-13

    USGS Publications Warehouse

    Schenk, Liam N.; Bragg, Heather M.

    2014-01-01

    The drawdown of Fall Creek Lake resulted in the net transport of approximately 50,300 tons of sediment from the lake during a 6-day drawdown operation, based on computed daily values of suspended-sediment load downstream of Fall Creek Dam and the two main tributaries to Fall Creek Lake. A suspended-sediment budget calculated for 72 days of the study period indicates that as a result of drawdown operations, there was approximately 16,300 tons of sediment deposition within the reaches of Fall Creek and the Middle Fork Willamette River between Fall Creek Dam and the streamgage on the Middle Fork Willamette River at Jasper, Oregon. Bedload samples collected at the station downstream of Fall Creek Dam during the drawdown were primarily composed of medium to fine sands and accounted for an average of 11 percent of the total instantaneous sediment load (also termed sediment discharge) during sample collection. Monitoring of dissolved oxygen at the station downstream of Fall Creek Dam showed an initial decrease in dissolved oxygen concurrent with the sediment release over the span of 5 hours, though the extent of dissolved oxygen depletion is unknown because of extreme and rapid fouling of the probe by the large amount of sediment in transport. Dissolved oxygen returned to background levels downstream of Fall Creek Dam on December 18, 2012, approximately 1 day after the end of the drawdown operation.

  8. 50. LOCK AND DAM NO. 26 (REPLACEMENT). FIRST STAGE DAM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    50. LOCK AND DAM NO. 26 (REPLACEMENT). FIRST STAGE DAM -- DAM CONCRETE -- GENERAL ARRANGEMENT -- SECTION AND ELEVATIONS. M-L 26(R) 40/3 - Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton, Madison County, IL

  9. 49. LOCK AND DAM NO. 26 (REPLACEMENT). FIRST STAGE DAM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    49. LOCK AND DAM NO. 26 (REPLACEMENT). FIRST STAGE DAM -- DAM CONCRETE -- TYPICAL PIER ISOMETRIC. M-L 26(R) 40/1 - Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton, Madison County, IL

  10. CRIB DAM, LOOKING ALONG DAM FROM WEST ABUTMENT, SHOWING PLANK ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    CRIB DAM, LOOKING ALONG DAM FROM WEST ABUTMENT, SHOWING PLANK SHEATHING IN FOREGROUND. VIEW TO EAST - Kachess Dam, 1904 Cascade Canal Company Crib Dam, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

  11. Supplement Analysis for the Watershed Management Program EIS (DOE/EIS-0265/SA-75) - Gourlay Creek Fish Ladder Project

    SciTech Connect

    Stewart, Shannon C.

    2002-02-20

    BPA proposes to fund the construction of a fish passage facility at the Gourlay Creek Dam/water reservoir in Columbia County, Oregon. The City of Scappoose owns and manages close to half of the Gourlay Creek Watershed including high quality habitat above and below the Gourlay Creek Dam. Gourlay Creek Dam has been identified as a key limiting factor in the re-generation of salmon and trout in the Gourlay Creek Watershed. Currently it provides a complete barrier to fish passage for Endangered Species Act (ESA) listed salmonids, as well as to salmonids that are under status review for ESA listing. Historically, Gourlay Creek has provided important salmonid habitat within the Scappoose Bay Watershed. Salmonids still utilize the lower reaches of Gourlay Creek. The goal of the project is to provide unimpeded access for juvenile and adult salmonids to historic habitat upstream of the dam. The project would open up over two miles of habitat for coho and cutthroat trout and nearly four miles of habitat for steelhead.

  12. National Dam Inspection Program. SCS Dam PA-445 (NDI Number PA-00099 DER Number 64-176), Delaware River Basin, Wayne County, Pennsylvania. Phase I inspection Report

    DTIC Science & Technology

    1980-03-01

    per second) See Appendix D for hydraulic calculations Maximum known inflow (estimated from U.S.G.S. 370 ~gage data for Mill Creek at nearby Mountain ...PA-445. Based on records of the U.S.G.S. stream gage on Mill Creek at nearby Mountain - home, PA, the maximum inflow to PA-445 is estimated to be 370...44 𔃾 -~ ( APPENDIX F 4 ~ ~q* ~ - A ~ I ~ GEOLOGIC REPORT Bedrock - Dam and Reservoir Formation Name: Poplar Gap Member, Catskill Formation

  13. Pine Creek Ranch, FY 2001 Annual Report.

    SciTech Connect

    Berry, Mark E.

    2001-11-01

    Pine Creek Ranch was purchased in 1999 by the Confederated Tribes of Warm Springs using Bonneville Power Administration Fish and Wildlife Habitat Mitigation funds. The 25,000 acre property will be managed in perpetuity for the benefit of fish and wildlife habitat. Major issues include: (1) Restoring quality spawning and rearing habitat for stealhead. Streams are incised and fish passage barriers exist from culverts and possibly beaver dams. In addition to stealhead habitat, the Tribes are interested in overall riparian recovery in the John Day River system for wildlife habitat, watershed values and other values such as recreation. (2) Future grazing for specific management purposes. Past grazing practices undoubtedly contributed to current unacceptable conditions. The main stem of Pine Creek has already been enrolled in the CREP program administered by the USDA, Natural Resource Conservation Service in part because of the cost-share for vegetation restoration in a buffer portion of old fields and in part because of rental fees that will help the Tribes to pay the property taxes. Grazing is not allowed in the riparian buffer for the term of the contract. (3) Noxious weeds are a major concern. (4) Encroachment by western juniper throughout the watershed is a potential concern for the hydrology of the creek. Mark Berry, Habitat Manager, for the Pine Creek Ranch requested the Team to address the following objectives: (1) Introduce some of the field staff and others to Proper Functioning Condition (PFC) assessments and concepts. (2) Do a PFC assessment on approximately 10 miles of Pine Creek. (3) Offer management recommendations. (4) Provide guidelines for monitoring.

  14. Focusing on dam safety

    SciTech Connect

    Lagassa, G.

    1993-01-01

    With increased relicensing activity and a federal emphasis on safety, dam repair and refurbishment is a growing business. Providers of goods and services are gearing up to meet the dam repair and rehabilitation needs that result.

  15. Shell Creek Summers

    ERIC Educational Resources Information Center

    Seier, Mark; Goedeken, Suzy

    2005-01-01

    In 2002 Shell Creek Watershed Improvement Group turned to the Newman Grove Public Schools' science department to help educate the public on water quality in the watershed and to establish a monitoring system that would be used to improve surface and groundwater quality in the creek's watershed. Nebraska Department of Environmental Quality provided…

  16. Shell Creek Summers

    ERIC Educational Resources Information Center

    Seier, Mark; Goedeken, Suzy

    2005-01-01

    In 2002 Shell Creek Watershed Improvement Group turned to the Newman Grove Public Schools' science department to help educate the public on water quality in the watershed and to establish a monitoring system that would be used to improve surface and groundwater quality in the creek's watershed. Nebraska Department of Environmental Quality provided…

  17. Gypsum-karst problems in constructing dams in the USA

    NASA Astrophysics Data System (ADS)

    Johnson, Kenneth S.

    2008-01-01

    Gypsum is a highly soluble rock and is dissolved readily to form caves, sinkholes, disappearing streams, and other karst features that typically are also present in limestones and dolomites. Gypsum karst is widespread in the USA and has caused problems at several sites where dams were built, or where dam construction was considered. Gypsum karst is present (at least locally) in most areas where gypsum crops out, or is less than 30-60 m below the land surface. These karst features can compromise on the ability of a dam to hold water in a reservoir, and can even cause collapse of a dam. Gypsum karst in the abutments or foundation of a dam can allow water to pass through, around, or under a dam, and solution channels can enlarge quickly, once water starts flowing through such a karst system. The common procedure for controlling gypsum karst beneath the dam is a deep cut-off trench, backfilled with impermeable material, or a close-spaced grout curtain that hopefully will fill all cavities. In Oklahoma, the proposed Upper Mangum Dam was abandoned before construction, because of extensive gypsum karst in the abutments and impoundment area. Catastrophic failure of the Quail Creek Dike in southwest Utah in 1989 was due to flow of water through an undetected karstified gypsum unit beneath the earth-fill embankment. The dike was rebuilt, at a cost of US 12 million, with construction of a cut-off trench 600 m long and 25 m deep. Other dams in the USA with severe gypsum-karst leakage problems in recent years are Horsetooth and Carter Lake Dams, in Colorado, and Anchor Dam, in Wyoming.

  18. Gypsum-karst problems in constructing dams in the USA

    USGS Publications Warehouse

    Johnson, K.S.

    2008-01-01

    Gypsum is a highly soluble rock and is dissolved readily to form caves, sinkholes, disappearing streams, and other karst features that typically are also present in limestones and dolomites. Gypsum karst is widespread in the USA and has caused problems at several sites where dams were built, or where dam construction was considered. Gypsum karst is present (at least locally) in most areas where gypsum crops out, or is less than 30-60 m below the land surface. These karst features can compromise on the ability of a dam to hold water in a reservoir, and can even cause collapse of a dam. Gypsum karst in the abutments or foundation of a dam can allow water to pass through, around, or under a dam, and solution channels can enlarge quickly, once water starts flowing through such a karst system. The common procedure for controlling gypsum karst beneath the dam is a deep cut-off trench, backfilled with impermeable material, or a close-spaced grout curtain that hopefully will fill all cavities. In Oklahoma, the proposed Upper Mangum Dam was abandoned before construction, because of extensive gypsum karst in the abutments and impoundment area. Catastrophic failure of the Quail Creek Dike in southwest Utah in 1989 was due to flow of water through an undetected karstified gypsum unit beneath the earth-fill embankment. The dike was rebuilt, at a cost of US $12 million, with construction of a cut-off trench 600 m long and 25 m deep. Other dams in the USA with severe gypsum-karst leakage problems in recent years are Horsetooth and Carter Lake Dams, in Colorado, and Anchor Dam, in Wyoming. ?? 2007 Springer-Verlag.

  19. Turbid releases from Glen Canyon Dam, Arizona, following rainfall-runoff events of September 2013

    USGS Publications Warehouse

    Wildman, Richard A.; Vernieu, William

    2017-01-01

    Glen Canyon Dam is a large dam on the Colorado River in Arizona. In September 2013, it released turbid water following intense thunderstorms in the surrounding area. Turbidity was >15 nephelometric turbidity units (NTU) for multiple days and >30 NTU at its peak. These unprecedented turbid releases impaired downstream fishing activity and motivated a rapid-response field excursion. At 5 locations upstream from the dam, temperature, specific conductance, dissolved oxygen, chlorophyll a, and turbidity were measured in vertical profiles. Local streamflow and rainfall records were retrieved, and turbidity and specific conductance data in dam releases were evaluated. Profiling was conducted to determine possible sources of turbidity from 3 tributaries nearest the dam, Navajo, Antelope, and Wahweap creeks, which entered Lake Powell as interflows during this study. We discuss 4 key conditions that must have been met for tributaries to influence turbidity of dam releases: tributary flows must have reached the dam, tributary flows must have been laden with sediment, inflow currents must have been near the depth of dam withdrawals, and the settling velocity of particles must have been slow. We isolate 2 key uncertainties that reservoir managers should resolve in future similar studies: the reach of tributary water into the reservoir thalweg and the distribution of particle size of suspended sediment. These uncertainties leave the source of the turbidity ambiguous, although an important role for Wahweap Creek is possible. The unique combination of limnological factors we describe implies that turbid releases at Glen Canyon Dam will continue to be rare.

  20. Hoover Dam Learning Packet.

    ERIC Educational Resources Information Center

    Bureau of Reclamation (Dept. of Interior), Washington, DC.

    This learning packet provides background information about Hoover Dam (Nevada) and the surrounding area. Since the dam was built at the height of the Depression in 1931, people came from all over the country to work on it. Because of Hoover Dam, the Colorado River was controlled for the first time in history and farmers in Nevada, California, and…

  1. Dam removal: Listening in

    USGS Publications Warehouse

    Foley, Melissa M.; Bellmore, James; O'Connor, James E.; Duda, Jeff; East, Amy E.; Grant, Gordon G.; Anderson, Chauncey; Bountry, Jennifer A.; Collins, Mathias J.; Connolly, Patrick J.; Craig, Laura S.; Evans, James E.; Greene, Samantha; Magilligan, Francis J.; Magirl, Christopher S.; Major, Jon J.; Pess, George R.; Randle, Timothy J.; Shafroth, Patrick B.; Torgersen, Christian; Tullos, Desiree D.; Wilcox, Andrew C.

    2017-01-01

    Dam removal is widely used as an approach for river restoration in the United States. The increase in dam removals—particularly large dams—and associated dam-removal studies over the last few decades motivated a working group at the USGS John Wesley Powell Center for Analysis and Synthesis to review and synthesize available studies of dam removals and their findings. Based on dam removals thus far, some general conclusions have emerged: (1) physical responses are typically fast, with the rate of sediment erosion largely dependent on sediment characteristics and dam-removal strategy; (2) ecological responses to dam removal differ among the affected upstream, downstream, and reservoir reaches; (3) dam removal tends to quickly reestablish connectivity, restoring the movement of material and organisms between upstream and downstream river reaches; (4) geographic context, river history, and land use significantly influence river restoration trajectories and recovery potential because they control broader physical and ecological processes and conditions; and (5) quantitative modeling capability is improving, particularly for physical and broad-scale ecological effects, and gives managers information needed to understand and predict long-term effects of dam removal on riverine ecosystems. Although these studies collectively enhance our understanding of how riverine ecosystems respond to dam removal, knowledge gaps remain because most studies have been short (< 5 years) and do not adequately represent the diversity of dam types, watershed conditions, and dam-removal methods in the U.S.

  2. 15. CONCRETE CHECK DAM NORTHWEST OF SOUTHEAST LAKE LADORA (SECTION ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. CONCRETE CHECK DAM NORTHWEST OF SOUTHEAST LAKE LADORA (SECTION 2) WITH THE FORMER EGLI FARM IN THE DISTANCE. - Highline Canal, Sand Creek Lateral, Beginning at intersection of Peoria Street & Highline Canal in Arapahoe County (City of Aurora), Sand Creek lateral Extends 15 miles Northerly through Araphoe County, City & County of Denver, & Adams County to its end point, approximately 1/4 mile Southest of intersectioin of D Street & Ninth Avenue in Adams County (Rocky Mountain Arsenal, Commerce City Vicinity), Commerce City, Adams County, CO

  3. 122. Goshen Creek Viaduct. This steel girder viaduct, built in ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    122. Goshen Creek Viaduct. This steel girder viaduct, built in 1949, is the only viaduct with solid, stone-faced, concrete reinforced piers. View facing north-northeast. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  4. 86. Round Meadow Creek Viaduct. This steel girder bridge, built ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    86. Round Meadow Creek Viaduct. This steel girder bridge, built in 1939, has a reinforced concrete deck and piers. It is an example of a major in-line, or straight, viaduct over a deep ravine. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  5. 64. Paynes Creek Culvert. This concrete box culvert is a ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    64. Paynes Creek Culvert. This concrete box culvert is a typical example of a concrete box culvert finished with rusticated stone. Its arches reflect the rigid frame structures. Looking west. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  6. 26. Otter Creek Bridge #5. View of elevation of stone ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    26. Otter Creek Bridge #5. View of elevation of stone facing on concrete box culvert. Stone facing appears on the headwall, tail wall, wingwalls, interior abutment wall and the pier. Looking northwest. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  7. 80. Laurel Fork Creek Bridge #2. Example of a concrete ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    80. Laurel Fork Creek Bridge #2. Example of a concrete slab bridge with T beams. It was built in 1937 and the wing walls were faced with stone to blend with its surroundings. Looking northeast. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  8. 101. Pine Creek Bridge #7. It is the only parkway ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    101. Pine Creek Bridge #7. It is the only parkway bridge with steel arch piers and the only one whose piers are attached to its foundations with steel pins allowing it to flex without damaging the structure. Looking northeast. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  9. 145. Camp Creek Bridge. This is a Roman spandrel arch ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    145. Camp Creek Bridge. This is a Roman spandrel arch bridge built in 1939. View shows the stone arch stones and the stone facing on the headwall and wing wall. Looking north-northwest. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  10. PERSPECTIVE ON LANDSLIDE DAMS.

    USGS Publications Warehouse

    Schuster, Robert L.; Costa, John E.; ,

    1986-01-01

    The most common types of mass movements that form landslide dams are rock and soil slumps and slides; mud, debris, and earth flows: and rock and debris avalanches. The most common initiation mechanisms for dam-forming landslides are excessive rainfall and snow melt, and earthquakes. Most landslide dams are remarkable short-lived. In a sample of 63 documented cases, 22 percent of the landslide dams failed in less than 1 day after formation, and half failed within 10 days. Overtopping was by far the most frequent cause of landslide-dam failure. Backwater flooding behind landslide dams can inundate communities and valuable agricultural land. Floods from the failure of landslide dams are smaller than floods from constructed dams impounding bodies of water with the same potential energy, but larger than floods from failure of ice dams. Secondary effects of landslide-dam failures include additional landslides as reservoir levels drop rapidly, aggradation of valleys upstream and downstream of the dams, and avulsive channel changes downstream.

  11. Flood hydrology for Dry Creek, Lake County, Northwestern Montana

    USGS Publications Warehouse

    Parrett, C.; Jarrett, R.D.

    2004-01-01

    Dry Creek drains about 22.6 square kilometers of rugged mountainous terrain upstream from Tabor Dam in the Mission Range near St. Ignatius, Montana. Because of uncertainty about plausible peak discharges and concerns regarding the ability of the Tabor Dam spillway to safely convey these discharges, the flood hydrology for Dry Creek was evaluated on the basis of three hydrologic and geologic methods. The first method involved determining an envelope line relating flood discharge to drainage area on the basis of regional historical data and calculating a 500-year flood for Dry Creek using a regression equation. The second method involved paleoflood methods to estimate the maximum plausible discharge for 35 sites in the study area. The third method involved rainfall-runoff modeling for the Dry Creek basin in conjunction with regional precipitation information to determine plausible peak discharges. All of these methods resulted in estimates of plausible peak discharges that are substantially less than those predicted by the more generally applied probable maximum flood technique. Copyright ASCE 2004.

  12. Channel aggradation by beaver dams on a small agricultural stream in Eastern Nebraska

    Treesearch

    M.C. McCullough; J.L. Harper; D.E. Eisenhauer; M.G. Dosskey

    2004-01-01

    We assessed the effect of beaver dams on channel gradation of an incised stream in an agricultural area of eastern Nebraska. A topographic survey was conducted of a reach of Little Muddy Creek where beaver are known to have been building dams for twelve years. Results indicating that over this time period the thalweg elevation has aggraded an average of 0.65 m by...

  13. 16. Parker Dam, only top fourth of dam visible, at ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16. Parker Dam, only top fourth of dam visible, at 320' high, Parker Dam is one of the highest in the world. Much of this height is because dam penetrates well below river bottom to fasten to bedrock. - Parker Dam, Spanning Colorado River between AZ & CA, Parker, La Paz County, AZ

  14. Persistence of the longnose darter (P. nasuta) in Lee Creek, Oklahoma

    USGS Publications Warehouse

    Gatlin, Michael R.; Long, James M.

    2011-01-01

    Lee Creek is one of Oklahoma’s six rivers designated as "scenic" by the Oklahoma Legislature. Lee Creek is located on the Oklahoma-Arkansas border in far eastern Oklahoma. The headwaters originate in northwestern Arkansas and flow south towards the Arkansas River. While the majority of the stream is in Arkansas, a portion flows into Oklahoma northwest of Uniontown, AR and continues for 28.2 river-km before crossing back into Arkansas near Van Buren, AR. The hydrology of lower Lee Creek has been altered by Lee Creek Reservoir near Van Buren, AR. It was believed that pre-impounded Lee Creek had the largest existing population of longnose darters (8). However, the most recent fish surveys in Lee Creek were conducted approximately twenty years ago. Robinson (8) surveyed Lee Creek in Arkansas, upstream of the Oklahoma border, and found longnose darters upstream of Natural Dam, AR. Wagner et al. (10) were the last to document longnose darter presence in the Oklahoma segment of Lee Creek. No efforts to collect this species in Oklahoma have occurred since the completion of Lee Creek Reservoir. Our objective was to determine whether the species persist in this segment of its historic range since impoundment.

  15. San Mateo Creek Basin

    EPA Pesticide Factsheets

    The San Mateo Creek Basin comprises approximately 321 square miles within the Rio San Jose drainage basin in McKinley and Cibola counties, New Mexico. This basin is located within the Grants Mining District (GMD).

  16. Partridge Creek Diversion Project

    EPA Pesticide Factsheets

    Goal: prevent mercury contamination by keeping the creek from flowing through a mine pit. The project improved brook trout habitat, green infrastructure, the local economy, and decreased human health risks. Includes before-and-after photos.

  17. [Maternity blues].

    PubMed

    Gonidakis, F

    2007-04-01

    Maternity blues is a transient change of mood that occurs mainly between the 1st and 10th day of puerpartum and is characterized by bursts of tears, mild depressive mood, anxiety and liability of mood. The frequency of maternity blues varies in different studies form 4% to 80%. A number of biological and psychosocial parameters have been studied in order to determine their correlation with maternity blues. The most well studied biological parameters are progesterone and cortizol although their relation with maternity blues has not yet been clearly defined. Stress and the emotional state of the woman during pregnancy as well as history of mood disorders or maternity blues in a previous birth are the psychosocial parameters that are more likely to correlate with the occurrence of maternity blues. Most of the authors suggest that information on maternity blues and reassurance of the woman are the best way to deal with maternity blues both on preventive and therapeutical basis.

  18. Intake Structure Operation Study Elk Creek Dam, Oregon

    DTIC Science & Technology

    1990-09-01

    excess of the water quality system, and an overflow spillway for passage of extreme flood flows . The water quality system and the regulating outlet will...wet well, the flow must transition from the large rectangular geometry of the upper wet well to a 7- by 7-ft rectangular con- duit. It then must...the two ports was approximated by a straight -forward calculation. 43. To prove that the flow distributions desired were attainable, the port settings

  19. Intake Structure Operation Study, Lost Creek Dam, Oregon

    DTIC Science & Technology

    1989-07-01

    Reservoirs OSPACE (computer program) Resource conservation Reservoir modeling Water quality 19 ABSTRACT (Continue on reverse if necessary and identify by...G. A. Pickering, Chief, HSD. The tests were conducted by Mr. Stacy E. Howington, Reservoir Water Quality Branch (RWQB), HSD, under the direct super...supply, power generation, fish and wild- life enhancement, recreation, and water quality (Cassidy and Johnson 1982). 6. Releases from the reservoir are

  20. National Dam Safety Program. Lake Lafayette Dam (MO 20415), Missouri - Kansas City Basin, Lafayette County, Missouri. Phase I Inspection Report.

    DTIC Science & Technology

    1980-06-01

    lake used for recrea- tion. g. Design and Construction History . The dam was designed by Kennoy Engineers, Inc., 3367 Tates Creek Pike, Lexington...coo rmoooeo,,oooocoe.-.. 0Oa,0 ~OO4W 00 * an OCOCCO L.a C.r.C en to to.. taD c.a 000Cc-co CacaO 00CC, tat coo COOt coca CC) CCC 0)’ * * 0 * W~ ~ * S

  1. The impact of small irrigation diversion dams on the recent migration rates of steelhead and redband trout (Oncorhynchus mykiss)

    USGS Publications Warehouse

    Weigel, Dana E.; Connolly, Patrick J.; Powell, Madison S.

    2013-01-01

    Barriers to migration are numerous in stream environments and can occur from anthropogenic activities (such as dams and culverts) or natural processes (such as log jams or dams constructed by beaver (Castor canadensis)). Identification of barriers can be difficult when obstructions are temporary or incomplete providing passage periodically. We examine the effect of several small irrigation diversion dams on the recent migration rates of steelhead (Oncorhynchus mykiss) in three tributaries to the Methow River, Washington. The three basins had different recent migration patterns: Beaver Creek did not have any recent migration between sites, Libby Creek had two-way migration between sites and Gold Creek had downstream migration between sites. Sites with migration were significantly different from sites without migration in distance, number of obstructions, obstruction height to depth ratio and maximum stream gradient. When comparing the sites without migration in Beaver Creek to the sites with migration in Libby and Gold creeks, the number of obstructions was the only significant variable. Multinomial logistic regression identified obstruction height to depth ratio and maximum stream gradient as the best fitting model to predict the level of migration among sites. Small irrigation diversion dams were limiting population interactions in Beaver Creek and collectively blocking steelhead migration into the stream. Variables related to stream resistance (gradient, obstruction number and obstruction height to depth ratio) were better predictors of recent migration rates than distance, and can provide important insight into migration and population demographic processes in lotic species.

  2. 36 CFR 7.34 - Blue Ridge Parkway.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... restrictions indicated: (i) North Carolina. Basin Creek and its tributaries in Doughton Park; Trout Lake in... hour after sunset until one-half hour before sunrise. (2) Fishing from the dam at Price Lake or from the footbridge in Price Lake picnic area in Watauga County, N.C., and from the James River Parkway...

  3. 36 CFR 7.34 - Blue Ridge Parkway.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... restrictions indicated: (i) North Carolina. Basin Creek and its tributaries in Doughton Park; Trout Lake in... hour after sunset until one-half hour before sunrise. (2) Fishing from the dam at Price Lake or from the footbridge in Price Lake picnic area in Watauga County, N.C., and from the James River Parkway...

  4. 36 CFR 7.34 - Blue Ridge Parkway.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... restrictions indicated: (i) North Carolina. Basin Creek and its tributaries in Doughton Park; Trout Lake in... hour after sunset until one-half hour before sunrise. (2) Fishing from the dam at Price Lake or from the footbridge in Price Lake picnic area in Watauga County, N.C., and from the James River Parkway...

  5. 36 CFR 7.34 - Blue Ridge Parkway.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... restrictions indicated: (i) North Carolina. Basin Creek and its tributaries in Doughton Park; Trout Lake in... hour after sunset until one-half hour before sunrise. (2) Fishing from the dam at Price Lake or from the footbridge in Price Lake picnic area in Watauga County, N.C., and from the James River Parkway...

  6. 51. LOCK AND DAM NO. 26 (REPLACEMENT). FIRST STAGE DAM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    51. LOCK AND DAM NO. 26 (REPLACEMENT). FIRST STAGE DAM -- TAINTER GATE -- GENERAL ARRANGEMENT. M-L 26(R) 45/1 - Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton, Madison County, IL

  7. 9. Excavation work at Pleasant Dam (now called Waddell Dam). ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    9. Excavation work at Pleasant Dam (now called Waddell Dam). Photographer unknown, July, 22, 1926. Source: Maricopa County Municipal Water Conservation District Number One (MWD). - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  8. Scotch Creek Wildlife Area 2007-2008 Annual Report.

    SciTech Connect

    Olson, Jim

    2008-11-03

    The Scotch Creek Wildlife Area is a complex of 6 separate management units located in Okanogan County in North-central Washington State. The project is located within the Columbia Cascade Province (Okanogan sub-basin) and partially addresses adverse impacts caused by the construction of Chief Joseph and Grand Coulee hydroelectric dams. With the acquisition of the Eder unit in 2007, the total size of the wildlife area is now 19,860 acres. The Scotch Creek Wildlife Area was approved as a wildlife mitigation project in 1996 and habitat enhancement efforts to meet mitigation objectives have been underway since the spring of 1997 on Scotch Creek. Continuing efforts to monitor the threatened Sharp-tailed grouse population on the Scotch Creek unit are encouraging. The past two spring seasons were unseasonably cold and wet, a dangerous time for the young of the year. This past spring, Scotch Creek had a cold snap with snow on June 10th, a critical period for young chicks just hatched. Still, adult numbers on the leks have remained stable the past two years. Maintenance of BPA funded enhancements is necessary to protect and enhance shrub-steppe and to recover and sustain populations of Sharp-tailed grouse and other obligate species.

  9. Focusing attention on dam safety

    SciTech Connect

    Barnes, M.J.

    1992-09-01

    When people think of hydropower, an image of a dam often comes to mind. Indeed, at most high-hazard dams, there is a hydro plant. A North American hydro industry survey shows that dams and their safety are a priority among project owners. The survey identified several recent dam safety activities: development of safety evaluation programs; dam rehabilitation for greater stability; dam monitoring installations; seismic strengthening; and emergency preparedness.

  10. Proceedings of Dam Safety Training Program

    SciTech Connect

    Tanner, D.T.; Sloan, R.C.; Tockstein, C.D.; Price, J.T.; Stone, S.D.; Newton, D.; Spearman, E.L.; Hodge, R.D.; Jenkins, C.; Chapman, L.D.

    1985-01-01

    The papers included are titled: Assessment of Instrumentation Data, Design of Concrete Dams, Instrumentation of Dams, TVA's Dam Safety Program, Design of Earth Dams, Hydrologic Design of Dams, Emergency Action Plans, TVA Dam Safety Studies and Project Rehabilitation, Collection of Instrumentation Data, Structural Inspection at Non-Power Dams, Construction of Dams, and Site Selection and Geology.

  11. Soap Creek Associates NPDES Permit

    EPA Pesticide Factsheets

    Under National Pollutant Discharge Elimination System permit number MT-0023183, Soap Creek Associates, Inc. is authorized to discharge from its wastewater treatment facility located in West, Bighorn County, Montana, to Soap Creek.

  12. Detecting dam failures

    SciTech Connect

    Knarr, C.M.; Barker, T.J.; McKenery, S.F. )

    1994-06-01

    This article describes efforts by Southern California Edison to meet Federal Energy Regulatory Commission requirements for unattended dam monitoring against failure. The topics include a description of the two dam systems, monitoring system design and operation including warning sirens for remote camping areas, and installation of the systems.

  13. Dammed or Damned?

    ERIC Educational Resources Information Center

    Hirsch, Philip

    1988-01-01

    Summarizes issues raised at a workshop on "People and Dams" organized by the Society for Participatory Research in Asia. Objectives were to (1) understand problems created by dams for people, (2) consider forces affecting displaced populations and rehabilitation efforts, and (3) gain a perspective on popular education efforts among…

  14. Hydrologic response of streams restored with check dams in the Chiricahua Mountains

    USDA-ARS?s Scientific Manuscript database

    In this study, hydrological processes are evaluated to determine impacts of stream restoration in the West Turkey Creek, Chiricahua Mountains, southeast Arizona, during a summer-monsoon season (June–October of 2013). A paired-watershed approach was used to analyze the effectiveness of check dams to ...

  15. Technical background information for the environmental and safety report, Volume 4: White Oak Lake and Dam

    SciTech Connect

    Oakes, T.W.; Kelly, B.A.; Ohnesorge, W.F.; Eldridge, J.S.; Bird, J.C.; Shank, K.E.; Tsakeres, F.S.

    1982-03-01

    This report has been prepared to provide background information on White Oak Lake for the Oak Ridge National Laboratory Environmental and Safety Report. The paper presents the history of White Oak Dam and Lake and describes the hydrological conditions of the White Oak Creek watershed. Past and present sediment and water data are included; pathway analyses are described in detail.

  16. Blue Note

    ScienceCinema

    Murray Gibson

    2016-07-12

    Argonne's Murray Gibson is a physicist whose life's work includes finding patterns among atoms. The love of distinguishing patterns also drives Gibson as a musician and Blues enthusiast."Blue" notes are very harmonic notes that are missing from the equal temperament scale.The techniques of piano blues and jazz represent the melding of African and Western music into something totally new and exciting.

  17. Blue Note

    SciTech Connect

    Murray Gibson

    2007-04-27

    Argonne's Murray Gibson is a physicist whose life's work includes finding patterns among atoms. The love of distinguishing patterns also drives Gibson as a musician and Blues enthusiast."Blue" notes are very harmonic notes that are missing from the equal temperament scale.The techniques of piano blues and jazz represent the melding of African and Western music into something totally new and exciting.

  18. Heavy metal contents and the water quality of Karasu Creek in Nigde, Turkey.

    PubMed

    Yalcin, M Gurhan; Aydin, Olcay; Elhatip, Hatim

    2008-02-01

    Different sources of pollution in Karasu Creek were investigated to obtain the water quality and ratio of contamination in this region. To achieve the main objectives of the present study, water samples were collected from Karasu Creek, starting from flow pattern at the upstream site of Akkaya Dam to the end of the dam, crossing the place where the Creek drains into. Dissolved oxygen, electrical conductivity, temperature and maximum/minimum pH were measured systematically for 12 months in the stations, where the water samples were collected. Chemical analyses of the water samples were carried out by using Cadas 50 S brand UV spectrometer to find out the Pb, Fe, Cu, Zn, Ni, Cr, Cd, S, F and Cn concentrations. These concentration were determined in microg/lt as 80-850; 180-4,920; 10-6,100; 440-25,530; 130-2,400; 120-280; 20-150; 214,250-1,113,580; 1,560-4,270 and 40-690, respectively. To determine metal levels of the water samples, multivariate analyses (element coefficient correlation, coefficient correlation dendrogram, hierarchical cluster analysis dendrogram, model summary and ANOVA) were used. The analyses yielded highly accurate results. There were positive correlations between some elements and their possible sources were the same. The stations which resembled each other along the creek were divided into three groups. The water quality of the creek was low and had toxic qualities. Eutrophication developed in Akkaya Dam along the creek. The source of pollution was thought to be industrial and residential wastes. Absolute (0-100 m), short distance (100-500 m) and medium distance (500-2,000 m) conservation areas should be determined in pollution areas along Karasu Creek and they should be improved.

  19. 1. GORGE HIGH DAM. THIS THIN ARCH DAM WITH A ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. GORGE HIGH DAM. THIS THIN ARCH DAM WITH A GRAVITY SECTION IS THE THIRD DAM BUILT BY SEATTLE CITY LIGHT TO PROVIDE WATER FOR GORGE POWERHOUSE AND WAS COMPLETED IN 1961, 1989. - Skagit Power Development, Gorge High Dam, On Skagit River, 2.9 miles upstream from Newhalem, Newhalem, Whatcom County, WA

  20. Alturas Lake Creek Flow Augmentation, 1986 Final Report.

    SciTech Connect

    Andrews, John; Lloyd, John; Webster, Bert

    1987-04-01

    Two alternatives were outlined in the first statement of work as possibilities for flow augmentation in Alturas Lake Creek. The alternatives were to raise the level of Alturas Lake and to acquire necessary water rights in Alturas Lake Creek. The first alternative considered in the study was raising the water level at Alturas Lake with a low head dam. Raising Alturas Lake, appeared feasible in that it provided the necessary fish flows in Alturas Lake Creek. However, raising the level of Alturas Lake has adverse effects to other resources and forced pursuing the second alternative as defined in this report. Some of these effects included: flooding Smokey Bear boat ramp, inundation of recreation beaches for extended periods, flooding of the campground and some of the road system, potentially contaminating the quality of lake water from flooded toilet vaults, and destroying the conifer canopy around the lake. Maintenance and operation costs of the dam, along with the need to have a watermaster to distribute flows over the course of the irrigation season, raised additional concerns that detracted from this alternative. The second alternative considered was the acquisition of water rights. This led to an appraisal of the water right values which was completed by BPA with a comparison appraisal done by the Forest Service.

  1. Thermal effects of dams in the Willamette River basin, Oregon

    USGS Publications Warehouse

    Rounds, Stewart A.

    2010-01-01

    where the annual maximum temperature typically occurred in September or October. Without-dam temperatures also tended to have more daily variation than with-dam temperatures. Examination of the without-dam temperature estimates indicated that dam sites could be grouped according to the amount of streamflow derived from high-elevation, spring-fed, and snowmelt-driven areas high in the Cascade Mountains (Cougar, Big Cliff/Detroit, River Mill, and Hills Creek Dams: Group A), as opposed to flow primarily derived from lower-elevation rainfall-driven drainages (Group B). Annual maximum temperatures for Group A ranged from 15 to 20 degree(s)C, expressed as the 7-day average of the daily maximum (7dADM), whereas annual maximum 7dADM temperatures for Group B ranged from 21 to 25 degrees C. Because summertime stream temperature is at least somewhat dependent on the upstream water source, it was important when estimating without-dam temperatures to use correlations to sites with similar upstream characteristics. For that reason, it also is important to maintain long-term, year-round temperature measurement stations at representative sites in each of the Willamette River basin's physiographic regions. Streamflow and temperature estimates downstream of the major dam sites and throughout the Willamette River were generated using existing CE-QUAL-W2 flow and temperature models. These models, originally developed for the Willamette River water-temperature Total Maximum Daily Load process, required only a few modifications to allow them to run under the greatly reduced without-dam flow conditions. Model scenarios both with and without upstream dams were run. Results showed that Willamette River streamflow without upstream dams was reduced to levels much closer to historical pre-dam conditions, with annual minimum streamflows approximately one-half or less of dam-augmented levels. Thermal effects of the dams varied according to the time of year, from cooling in mid-summer to warm

  2. Geomorphic and Ecological Issues in Removal of Sediment-Filled Dams in the California Coast Ranges (Invited)

    NASA Astrophysics Data System (ADS)

    Kondolf, G. M.; Oreilly, C.

    2010-12-01

    Water-supply reservoirs in the actively eroding California Coast Ranges are vulnerable to sediment filling, thus creating obsolete impounding dams (Minear & Kondolf 2009). Once full of sediment, there is more impetus to remove dams for public safety and fish passage, but managing accumulated sediments becomes a dominant issue in dam removal planning. We analyzed the planning process and sediment management analyses for five dams, all of which have important ecological resources but whose dam removal options are constrained by potential impacts to downstream urban populations. Ringe Dam on Malibu Ck, Matilija Dam on the Ventura River, Searsville Dam on San Francisquito Ck, and Upper York Creek Dam on York Ck cut off important habitat for anadromous steelhead trout (Oncorhynchus mykiss). San Clemente Dam on the Carmel River has a working fish ladder, but only some of the migratory steelhead use it. By virtue of having filled with sediment, all five dams are at greater risk of seismic failure. San Clemente Dam is at greater risk because its foundation is on alluvium (not bedrock), and the poor-quality concrete in Matilija Dam is deteriorating from an akali-aggregate reaction. Simply removing the dams and allowing accumulated sediments to be transported downstream is not an option because all these rivers have extremely expensive houses along downstream banks and floodplains, so that allowing the downstream channel to aggrade with dam-dervied sediments could expose agencies to liability for future flood losses. Analyses of potential sediment transport have been based mostly on application of tractive force models, and have supported management responses ranging from in-situ stabilization (San Clemente and Matilija) to removal of stored sediment (York) to annual dredging to maintain capacity and prevent sediment passing over the dam (proposed for Searsville).

  3. Tenderfoot Creek Experimental Forest

    Treesearch

    Ward W. McCaughey

    1996-01-01

    The Tenderfoot Creek Experimental Forest, established in 1961, is representative of the vast expanses of lodgepole pine (Pinus contorta) found east of the Continental Divide in Montana, southwest Alberta, and Wyoming. Discrete generations of even-age lodgepole stands form a mosaic typical of the fireprone forests at moderate to high altitudes in the Northern Rocky...

  4. Boulder Creek Study

    ERIC Educational Resources Information Center

    Bingaman, Deirdre; Eitel, Karla Bradley

    2010-01-01

    Boulder Creek runs literally in the backyard of Donnelly Elementary School and happens to be on the EPA list of impaired water bodies. Therefore, a unique opportunity for problem solving opened the door to an exciting chance for students to become scientists, while also becoming active in their community. With the help of the Idaho Department of…

  5. Boulder Creek Study

    ERIC Educational Resources Information Center

    Bingaman, Deirdre; Eitel, Karla Bradley

    2010-01-01

    Boulder Creek runs literally in the backyard of Donnelly Elementary School and happens to be on the EPA list of impaired water bodies. Therefore, a unique opportunity for problem solving opened the door to an exciting chance for students to become scientists, while also becoming active in their community. With the help of the Idaho Department of…

  6. Bent Creek demonstration program

    Treesearch

    Erik C. Berg

    1997-01-01

    Bent Creek Research and Demonstration Forest scientists have transferred the results of research on the ecology and management of Southern Appalachian hardwoods since 1925. Since 1989, a full-time technology transfer specialist has led demonstration efforts. The demonstration program was designed to quickly transfer research results to interested users and to free...

  7. Bent Creek demonstration program

    Treesearch

    Erik C. Berg

    1997-01-01

    Bent Creek Research and Demonstration Forest scientists have transferred the results of research on the ecology and management of Southern Appalachian hardwoods since 1925. Since 1989, a full-time technology transfer specialist has led demonstration efforts. The demonstration program was designed to quickly transfer research results to interested users, and free-up...

  8. Trout Creek 1999 Burn

    Treesearch

    Sherel Goodrich

    2008-01-01

    A small prescribed fire near the mouth of Trout Creek in Strawberry Valley, Wasatch County, Utah, on the Uinta National Forest provided an opportunity to compare production and vascular plant composition in unburned and burned areas. At four years post burn, production of herbaceous plants was about four times greater in the burned area than in the unburned area. Most...

  9. Effects of dam removal on brook trout in a Wisconsin stream

    USGS Publications Warehouse

    Stanley, E.H.; Catalano, M.J.; Mercado-Silva, N.; Orr, C.H.

    2007-01-01

    Dams create barriers to fish migration and dispersal in drainage basins, and the removal of dams is often viewed as a means of increasing habitat availability and restoring migratory routes of several fish species. However, these barriers can also isolate and protect native taxa from aggressive downstream invaders. We examined fish community composition two years prior to and two years after the removal of a pair of low-head dams from Boulder Creek, Wisconsin, U.S.A. in 2003 to determine if removal of these potential barriers affected the resident population of native brook trout (Salvelinus fontinalis). Despite the presence of other taxa in the downstream reaches, and in other similar streams adjacent to the Boulder Creek (including the brown trout, Salmo trutta), no new species had colonized the Boulder Creek in the two years following dam removal. The adults catch per unit effort (CPUE) was lower and the young-of-the-year catch per unit effort (YOY CPUE) was higher in 2005 than in 2001 in all reaches, but the magnitude of these changes was substantially larger in the two dam-affected sample reaches relative to an upstream reference reach, indicating a localized effect of the removal. Total length of the adults and the YOY and the adult body condition did not vary between years or among reaches. Thus, despite changes in numbers of adults and the YOYs in some sections of the stream, the lack of new fish species invading Boulder Creek and the limited extent of population change in brook trout indicate that dam removal had a minor effect on these native salmonids in the first two years of the post-removal. Copyright ?? 2007 John Wiley & Sons, Ltd.

  10. Wynoochee Dam Foundation Report

    DTIC Science & Technology

    1988-01-01

    metamorphosed tholeiitic basalt, diabase , volcaniclastic, and associated sediments. From 8 miles upstream to 10 miles downstream from the dam the rocks are...clay and fine sandy interbeds are occasion- ally present at flow contacts. locally, the basalt is cut by dark gray, moderately jointed diabase dike...rock. 3.03.2 All of the concrete dam is founded on bedrock (figure 3-3). Basalt forms the right abutment, diabase forms the left, and a contact zone

  11. Paleontological evidence of Paleozoic age for the Walden Creek Group, Ocoee Supergroup, Tennessee

    NASA Astrophysics Data System (ADS)

    Unrug, Raphael; Unrug, Sophia

    1990-11-01

    A newly discovered fossil assemblage including trilobite, ostracod, bryozoan, and microcrinoid fragments and agglutinated foraminifers has been found in the Wilhite Formation, Walden Creek Group, Ocoee Supergroup, in the foothills of the Great Smoky Mountains, Tennessee. These fossils prove a Paleozoic age for the Walden Creek Group, which had been interpreted to be of Late Proterozoic age. The foraminiferal assemblage indicaes the Silurian as the older age limit for the Walden Creek Group. These findings make necessary a redefinition of the Ocoee sedimentary basin and reinterpretation of models of the evolution of the Blue Ridge structural province.

  12. 25. Otter Creek Bridge #2. View of the stone facing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    25. Otter Creek Bridge #2. View of the stone facing common on nearly all concrete box culverts. The stone faced arch mimics rigid frame structures. Culverts were used for a variety of purposes from small stream crossings to grade separation structures for farmers whose land was split by the parkway. Looking northeast. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  13. LOST COVE AND HARPER CREEK ROADLESS AREAS, NORTH CAROLINA.

    USGS Publications Warehouse

    Griffitts, W.R.; Crandall, T.M.

    1984-01-01

    An investigation indicated that a part of the Lost Cove and Harper Creek Roadless Areas, North Carolina has a probable mineral-resource potential for uranium, niobium, and beryllium. The study areas lie within the Blue Ridge physiographic province and are predominantly underlain by Precambrian plutonic and metasedimentary rocks of low metamorphic grade. The uranium occurs in vein-type deposits and in supergene-enriched foliated rocks. The geologic setting precludes the presence of fossil fuel resources.

  14. WELCOME CREEK WILDERNESS, MONTANA.

    USGS Publications Warehouse

    Lidke, D.J.; Close, T.J.

    1984-01-01

    Mineral-resource surveys indicate probable or substantiated mineral-resource potential for small amounts of gold and other metals. Areas of alluvium in Welcome Creek and in part of Rock Creek are classed as having probable and substantiated mineral-resource potential for small quantities of gold in small and scattered placers and in placer tailings. A small area which contains the Cleveland mine, on Cleveland Mountain, near the west border of the wilderness was classed as having probable mineral-resource potential for silver and gold in veins. Although green mudstone strata that often are favorable hosts for stratabound copper occurrences were found in the northeast part of the wilderness, no copper deposits were found and these studies indicate little likelihood for the occurrence of copper resources. The nature of the geologic terrain indicates that there is little likelihood of the occurrence of energy resources.

  15. Estimation of Downstream Cesium Concentrations Following a Postulated PAR Pond Dam Break

    SciTech Connect

    Chen, K.F.

    2002-07-08

    Following a postulated PAR Pond dam break, some of the PAR Pond sediment including the cesium could be eroded and be transported downstream to the Savannah River through the Lower Three Runs Creek. Studies showed that most of the eroded sediment including the cesium would deposit in the Lower Three Runs Creek and the remainder would discharge to the Savannah River from the mouth of Lower Three Runs Creek. A WASP5 model was developed to simulate the eroded sediment and cesium transport from the Lower Three Runs Creek mouth to the Atlantic coast. The dissolved cesium concentrations at the Highway 301 bridge and near the City of Savannah Industrial and Domestic Water Supply Plant are 30 and 27 pCi/l, respectively. The concentrations at both locations are less than the U. S. Environmental Protection Agency drinking water standard of 200 pCi/l.

  16. The effects of small dam removal on the distribution of sedimentary contaminants.

    PubMed

    Ashley, Jeffrey T F; Bushaw-Newton, Karen; Wilhelm, Matt; Boettner, Adam; Drames, Gregg; Velinsky, David J

    2006-03-01

    With increasing concern over degradation of aquatic resources, issues of liability, and maintenance costs, removal of small dams has become increasing popular. Although the benefits of removal seem to outweigh the drawbacks, there is a relative paucity of studies documenting the extent and magnitude of biological and chemical changes associated with dam removal, especially those evaluating potential changes in contaminant inventories. In August and November of 2000, a run-of-the-river dam on Manatawny Creek (southeast Pennsylvania) was removed in a two-stage process. To assess the effects of dam removal on the contaminant redistribution within the creek, sedimentary concentrations of polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and trace metals (Cd, Cr, Cu, Ni, Pb, Zn) were evaluated prior to and several months after removal. Pre- and post-removal analyses revealed elevated and spatially variable concentrations of total PAHs (ranging from approximately 200 to 81,000 ng(g dry weight) and low to moderate concentrations of trace metals and PCBs. The concentrations of these sedimentary contaminants pre- versus post-removal were not significantly different. Additionally, though the impoundment received storm water run-off and associated contaminants from the adjacent city of Pottstown, the total inventory of fine-grain sediments in the impoundment prior to removal was very low. The removal of the low-level Manatawny Creek dam did not significantly redistribute contaminants downstream. However, each dam removal should be assessed on a case by case basis where the potential of sedimentary contaminant redistribution upon dam removal exists.

  17. Blue Laser.

    DTIC Science & Technology

    1985-12-01

    HOLLOW CATHODE LASER FABRICATION 13 4. EXPERIENCE WITH THE BLUE LASER 18 4.1 Operational and Processing Experience 18 4.2 Performance Testing 20 5...34 -. - . •. SECTION 3 BLUE HOLLOW CATHODE LASER FABRICATION This section presents an overview of the steps taken in creating a HCL. There is...to the laser assembly. These steps can actually be considered as the final steps in laser fabrication because some of them involve adding various

  18. 140. PLAN AND SECTION OF NEW DAM AND OLD DAM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    140. PLAN AND SECTION OF NEW DAM AND OLD DAM From Annual Report of 1872, Water Department of Philadelphia - Fairmount Waterworks, East bank of Schuylkill River, Aquarium Drive, Philadelphia, Philadelphia County, PA

  19. Dams and Intergovernmental Transfers

    NASA Astrophysics Data System (ADS)

    Bao, X.

    2012-12-01

    Gainers and Losers are always associated with large scale hydrological infrastructure construction, such as dams, canals and water treatment facilities. Since most of these projects are public services and public goods, Some of these uneven impacts cannot fully be solved by markets. This paper tried to explore whether the governments are paying any effort to balance the uneven distributional impacts caused by dam construction or not. It showed that dam construction brought an average 2% decrease in per capita tax revenue in the upstream counties, a 30% increase in the dam-location counties and an insignificant increase in downstream counties. Similar distributional impacts were observed for other outcome variables. like rural income and agricultural crop yields, though the impacts differ across different crops. The paper also found some balancing efforts from inter-governmental transfers to reduce the unevenly distributed impacts caused by dam construction. However, overall the inter-governmental fiscal transfer efforts were not large enough to fully correct those uneven distributions, reflected from a 2% decrease of per capita GDP in upstream counties and increase of per capita GDP in local and downstream counties. This paper may shed some lights on the governmental considerations in the decision making process for large hydrological infrastructures.

  20. Bonanza Creek Experimental Forest & Caribou-Poker Creeks Research Watershed.

    Treesearch

    Valerie. Rapp

    2003-01-01

    Bonanza Creek Experimental Forest and Caribou-Poker Creeks Research Watershed are located in the boreal forest of interior Alaska. Research focuses on basic ecological processes, hydrology, disturbance regimes, and climate change in the boreal forest region. Interior Alaska lies between the Alaska Range to the south and the Brooks Range to the north and covers an area...

  1. ECHETA DAM RIPRAP ON RESERVOIR SIDE OF THE DAM AT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    ECHETA DAM RIP-RAP ON RESERVOIR SIDE OF THE DAM AT BREACH. VIEW TO NORTH-NORTHEAST. - Echeta Dam & Reservoir, 2.9 miles east of Echeta Road at Echeta Railroad Siding at County Road 293, Echeta, Campbell County, WY

  2. Coupled dam safety analysis using WinDAM

    USDA-ARS?s Scientific Manuscript database

    Windows® Dam Analysis Modules (WinDAM) is a set of modular software components that can be used to analyze overtopping and internal erosion of embankment dams. Dakota is an extensive software framework for design exploration and simulation. These tools can be coupled to create a powerful framework...

  3. 52. LOCK AND DAM NO. 26 (REPLACEMENT). FIRST STAGE DAM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    52. LOCK AND DAM NO. 26 (REPLACEMENT). FIRST STAGE DAM -- TAINTER GATE HOIST-ASSEMBLY -- PLANS AND ELEVATIONS. M-L 26(R) 46/2 - Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton, Madison County, IL

  4. 32. AERIAL VIEW OF TIETON DAM, UPSTREAM FACE OF DAM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    32. AERIAL VIEW OF TIETON DAM, UPSTREAM FACE OF DAM (Trashrack-structure for outlet at lower left in reservoir, spillway at upper left. Reservoir nearly empty due to drought.) - Tieton Dam, South & East of State Highway 12, Naches, Yakima County, WA

  5. Nested Paleozoic successor basins in the southern Appalachian Blue Ridge

    SciTech Connect

    Tull, J.F.; Groszos, M.S. )

    1990-11-01

    Field studies in the southern Appalachian Blue Ridge and its southwest extension, the Talladega belt, indicate that in at least three regions, polydeformed and metamorphosed turbidite-dominated sequences unconformably overlie rifted-margin continental-terrace wedge clastic rocks and overlying carbonate-platform deposits. These sequences are (1) the Talladega Group (in the Talladega belt), (2) the Walden Creek Group (along the west flank of the Blue Ridge), and (3) the Mineral Bluff Formation (within the core of the Blue Ridge). Paleontologic evidence indicates that the Talladega and Walden Creek Groups are in part as young as Silurian-Devonian. The presence of these anomalously young sequences unconformably above the trailing-margin stratigraphy in the Blue Ridge brings into question conventional ideas of the timing and nature of the tectonic evolution of the ancient continental margin.

  6. Nested Paleozoic "successor" basins in the southern Appalachian Blue Ridge

    NASA Astrophysics Data System (ADS)

    Tull, James F.; Groszos, Mark S.

    1990-11-01

    Field studies in the southern Appalachian Blue Ridge and its southwest extension, the Talladega belt, indicate that in at least three regions, polydeformed and metamorphosed turbidite-dominated sequences unconformably overlie rifted-margin continental-terrace wedge clastic rocks and overlying carbonate-platform deposits. These sequences are (1) the Talladega Group (in the Talladega belt), (2) the Walden Creek Group (along the west flank of the Blue Ridge), and (3) the Mineral Bluff Formation (within the core of the Blue Ridge). Paleontologic evidence indicates that the Talladega and Walden Creek Groups are in part as young as Silurian-Devonian. The presence of these anomalously young sequences unconformably above the trailing-margin stratigraphy in the Blue Ridge brings into question conventional ideas of the timing and nature of the tectonic evolution of the ancient continental margin.

  7. Small dams need better management

    NASA Astrophysics Data System (ADS)

    Balcerak, Ernie

    2012-03-01

    Many small dams around the world are poorly maintained and represent a safety hazard, according to Pisaniello et al. Better oversight of small dams is needed, the authors argue. The researchers reviewed literature, conducted case studies in four states in Australia, and developed policy benchmarks and best practices for small-dam management. Small dams, often just several meters high and typically privately owned by individual farmers, have historically caused major damage when they fail. For instance, in China in 1975, 230,000 people died when two large dams failed because of the cumulative failure of 60 smaller upstream dams. In the United States, in 1977 the 8-meter-high Kelly Barnes Lake dam failed, killing 39 people. Many other small-dam failures around the world have resulted in casualties and severe ecological and economic damage.

  8. 75 FR 27332 - AER NY-Gen, LLC; Eagle Creek Hydro Power, LLC; Eagle Creek Water Resources, LLC; Eagle Creek Land...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-14

    ... Energy Regulatory Commission AER NY-Gen, LLC; Eagle Creek Hydro Power, LLC; Eagle Creek Water Resources... Creek Hydro Power, LLC, Eagle Creek Water Resources, LLC, and Eagle Creek Land Resources, LLC.... For the transferee: Mr. Paul Ho, Eagle Creek Hydro Power, LLC, Eagle Creek Water Resources, LLC,...

  9. Water-Quality Characteristics of Cottonwood Creek, Taggart Creek, Lake Creek, and Granite Creek, Grand Teton National Park, Wyoming, 2006

    USGS Publications Warehouse

    Clark, Melanie L.; Wheeler, Jerrod D.; O'Ney, Susan E.

    2007-01-01

    To address water-resource management objectives of the National Park Service in Grand Teton National Park, the U.S. Geological Survey in cooperation with the National Park Service has conducted water-quality sampling on streams in the Snake River headwaters area. A synoptic study of streams in the western part of the headwaters area was conducted during 2006. Sampling sites were located on Cottonwood Creek, Taggart Creek, Lake Creek, and Granite Creek. Sampling events in June, July, August, and October were selected to characterize different hydrologic conditions and different recreational-use periods. Stream samples were collected and analyzed for field measurements, major-ion chemistry, nutrients, selected trace elements, pesticides, and suspended sediment. Water types of Cottonwood Creek, Taggart Creek, Lake Creek, and Granite Creek were calcium bicarbonate. Dissolved-solids concentrations were dilute in Cottonwood Creek and Taggart Creek, which drain Precambrian-era rocks and materials derived from these rocks. Dissolved-solids concentrations ranged from 11 to 31 milligrams per liter for samples collected from Cottonwood Creek and Taggart Creek. Dissolved-solids concentrations ranged from 55 to 130 milligrams per liter for samples collected from Lake Creek and Granite Creek, which drain Precambrian-era rocks and Paleozoic-era rocks and materials derived from these rocks. Nutrient concentrations generally were small in samples collected from Cottonwood Creek, Taggart Creek, Lake Creek, and Granite Creek. Dissolved-nitrate concentrations were the largest in Taggart Creek. The Taggart Creek drainage basin has the largest percentage of barren land cover of the basins, and subsurface waters of talus slopes may contribute to dissolved-nitrate concentrations in Taggart Creek. Pesticide concentrations, trace-element concentrations, and suspended-sediment concentrations generally were less than laboratory reporting levels or were small for all samples. Water

  10. Dam health diagnosis and evaluation

    NASA Astrophysics Data System (ADS)

    Wu, Zhongru; Su, Huaizhi

    2005-06-01

    Based on the bionics principle in the life sciences field, we regard a dam as a vital and intelligent system. A bionics model is constructed to observe, diagnose and evaluate dam health. The model is composed of a sensing system (nerve), central processing unit (cerebrum) and decision-making implement (organism). In addition, the model, index system and engineering method on dam health assessment are presented. The proposed theories and methods are applied to evaluate dynamically the health of one concrete dam.

  11. The Beaver Creek story

    USGS Publications Warehouse

    Doyle, W.H.; Whitworth, B.G.; Smith, G.F.; Byl, T.D.

    1996-01-01

    Beaver Creek watershed in West Tennessee includes about 95,000 acres of the Nation's most productive farmland and most highly erodible soils. In 1989 the U.S. Geological Survey, in cooperation with the Tennessee Department of Agriculture, began a study to evaluate the effect of agricultural activities on water quality in the watershed and for best management practices designed to reduce agricultural nonpoint-source pollution. Agrichemical monitoring included testing the soils, ground water, and streams at four farm sites ranging from 27 to 420 acres. Monitoring stations were operated downstream to gain a better understanding of the water chemistry as runoff moved from small ditches into larger streams to the outlet of the Beaver Creek watershed. Prior to the implementation of best management practices at one of the farm study sites, some storms produced an average suspended-sediment concentration of 70,000 milligrams per liter. After the implementation of BMP's, however, the average value never exceeded 7,000 milligrams per liter. No-till crop production was the most effective best management practice for conserving soil on the farm fields tested. A natural bottomland hardwood wetland and a constructed wetland were evaluated as instream resource-management systems. The wetlands improved water quality downstream by acting as a filter and removing a significant amount of nonpoint-source pollution from the agricultural runoff. The constructed wetland reduced the sediment, pesticide, and nutrient load by approximately 50 percent over a 4-month period. The results of the Beaver Creek watershed study have increased the understanding of the effects of agriculture on water resources. Study results also demonstrated that BMP's do protect and improve water quality.

  12. Line Creek improves efficiency

    SciTech Connect

    Harder, P.

    1988-04-01

    Boosting coal recovery rate by 8% and reducing fuel expense $18,000 annually by replacing two tractors, are two tangible benefits that Crows Nest Resources of British Columbia has achieved since overseas coal markets weakened in 1985. Though coal production at the 4-million tpy Line Creek open pit mine has been cut 25% from its 1984 level, morale among the pit crew remains high. More efficient pit equipment, innovative use of existing equipment, and encouragement of multiple skill development among workers - so people can be assigned to different jobs in the operation as situations demand - contribute to a successful operation.

  13. Hydrology of Pine Creek, Wisconsin

    USGS Publications Warehouse

    Gebert, Warren A.

    1971-01-01

    The purpose of this study was to determine the hydrologic characteristics of Pine Creek, Price County, Wisconsin, in order to evaluate a proposed reservoir on Pine Creek. The streamflow characteristics estimated are the mean flows, low flows, and flood peaks. The study was done by the U.S. Geological Survey in cooperation with the Wisconsin Department of Natural Resources.

  14. Deception Creek Experimental Forest (Idaho)

    Treesearch

    Russell T. Graham; Theresa B. Jain

    2004-01-01

    Deception Creek Experimental Forest is located in one of the most productive forests of the Rocky Mountains. When the forest was established in 1933, large, old western white pines were important for producing lumber products, matches, and toothpicks. Deception Creek is located in the heart of the western white pine forest type, allowing researchers to focus on the...

  15. Geomorphic responses to large check-dam removal on a mountain river in Taiwan

    NASA Astrophysics Data System (ADS)

    Wang, H.; Stark, C. P.; Cook, K. L.; Kuo, W.

    2011-12-01

    Dam removal has become an important aspect of river restoration in recent years, but studies documenting the physical and ecological response to dam removal are still lacking - particularly in mountain rivers and following major floods. This presentation documents the recent removal of a large dam on a coarse-grained, steep (an order of magnitude greater than on the Marmot) mountain channel in Taiwan. The Chijiawan river, a tributary of the Tachia River draining a 1236 km2 watershed, is the only habitat in Taiwan of the endangered Formosan landlocked salmon. The habitat of this fish has been cut significantly since the 1960s following construction of check dams designed to prevent reservoir sedimentation downstream. The largest and lowermost barrier on Chijiawan creek is the 15m high, "No. 1 Check Dam" built in 1971. Forty years later, in early 2011, the sediment wedge behind the dam had reached an estimated 0.2 million m3 and the dam toe had been scoured about 4m below its foundation, posing a serious risk of dam failure. For these reasons, the Shei-Pa National Park removed the dam in late May 2011. To monitor the response of the river to dam removal, we installed video cameras, time-lapse cameras, stage recorders, and turbidity sensors, conducted surveys of grain size distributions and longitudinal profiles, and carried out repeat photography. Channel changes were greatest immediately following removal as a result of the high stream power, steep energy slope, and unconsolidated alluvial fill behind the dam. Headcut propagation caused immediate removal of the sand-grade sediment and progressive channel widening. One month after dam removal, a minor flood event excavated a big wedge of sediment from the impoundment. Most of the subsequent downstream deposition occurred within 500m of the dam, with alluviation reaching up to 0.5m in places. Two months after dam removal, erosion had propagated 300m upstream into the impounded sediment along a bed profile of gradient

  16. Blue gods, blue oil, and blue people.

    PubMed

    Fairbanks, V F

    1994-09-01

    Studies of the composition of coal tar, which began in Prussia in 1834, profoundly affected the economies of Germany, Great Britain, India, and the rest of the world, as well as medicine and surgery. Such effects include the collapse of the profits of the British indigo monopoly, the growth in economic power of Germany based on coal tar chemistry, and an economic crisis in India that led to more humane tax laws and, ultimately, the independence of India and the end of the British Empire. Additional consequences were the development of antiseptic surgery and the synthesis of a wide variety of useful drugs that have eradicated infections and alleviated pain. Many of these drugs, particularly the commonly used analgesics, sulfonamides, sulfones, and local anesthetics, are derivatives of aniline, originally called "blue oil" or "kyanol." Some of these aniline derivatives, however, have also caused aplastic anemia, agranulocytosis, and methemoglobinemia (that is, "blue people"). Exposure to aniline drugs, particularly when two or three aniline drugs are taken concurrently, seems to be the commonest cause of methemoglobinemia today.

  17. Water Conservation Study for Manastash Creek Water Users, Kittias County, Washington, Final Report 2002.

    SciTech Connect

    Montgomery Watson Harza

    2002-12-31

    Manastash Creek is tributary of the Yakima River and is located southwest and across the Yakima River from the City of Ellensburg. The creek drains mountainous terrain that ranges in elevation from 2,000 feet to over 5,500 feet and is primarily snowmelt fed, with largest flows occurring in spring and early summer. The creek flows through a narrow canyon until reaching a large, open plain that slopes gently toward the Yakima River and enters the main stem of the Yakima River at river mile 154.5. This area, formed by the alluvial fan of the Creek as it leaves the canyon, is the subject of this study. The area is presently dominated by irrigated agriculture, but development pressures are evident as Ellensburg grows and develops as an urban center. Since the mid to late nineteenth century when irrigated agriculture was established in a significant manner in the Yakima River Basin, Manastash Creek has been used to supply irrigation water for farming in the area. Adjudicated water rights dating back to 1871 for 4,465 acres adjacent to Manastash Creek allow appropriation of up to 26,273 acre-feet of creek water for agricultural irrigation and stock water. The diversion of water from Manastash Creek for irrigation has created two main problems for fisheries. They are low flows or dewatered reaches of Manastash Creek and fish passage barriers at the irrigation diversion dams. The primary goal of this study, as expressed by Yakama Nation and BPA, is to reestablish safe access in tributaries of the Yakima River by removing physical barriers and unscreened diversions and by adding instream flow where needed for fisheries. The goal expressed by irrigators who would be affected by these projects is to support sustainable and profitable agricultural use of land that currently uses Manastash Creek water for irrigation. This study provides preliminary costs and recommendations for a range of alternative projects that will partially or fully meet the goal of establishing safe access

  18. Dams and water developments

    Treesearch

    Robert H. Schueneman

    1979-01-01

    The U.S. Army Corps of Engineers is involved in the construction and regulation of many activities relating to water resource development. Such activities include dams and reservoirs, channelization and erosion control on rivers and tributaries, and coastal works. These activities can result in an array of visual effects depending on the specific activity type and...

  19. Application of Sediment Transport Model on Chijiawan Dam Removal

    NASA Astrophysics Data System (ADS)

    Kuo, W. C.; Wang, H. W.

    2016-12-01

    Studies have using numerical models to simulate channel changes in steep mountainous areas with coarser sediments and high sediment yield are not many to date, which might hinder the understanding of model capabilities. For this purpose, this study focused on the application of a sediment transport model on channel evolution associated with dam removal in a mountain channel system. The first large dam removal project in Taiwan removed a 13-m high check dam on Chijiawan Creek in late May 2011. We applied the Sedimentation and River Hydraulics (SRH) Group's one-dimensional model to predict bed changes after dam removal and extreme hydrological events. Based on the root-mean-square error (RMSE) values and simulated thalweg profiles, this model showed the Yang's function best fit the observed changes in calibration with lowest RMSE value of 0.87 m and 1.49 m for verification. The results in bed changes revealed that the model effectively simulated sediment transports with thalweg, bed sorting and armoring except simulating the hydrological events exceeding 20-year return period discharge. Therefore, this study concludes that the SRH-1D can be applied on mountain channel with caution in choosing appropriate sediment transport formula.

  20. Kiowa Creek Switching Station

    SciTech Connect

    Not Available

    1990-03-01

    The Western Area Power Administration (Western) proposes to construct, operate, and maintain a new Kiowa Creek Switching Station near Orchard in Morgan County, Colorado. Kiowa Creek Switching Station would consist of a fenced area of approximately 300 by 300 feet and contain various electrical equipment typical for a switching station. As part of this new construction, approximately one mile of an existing 115-kilovolt (kV) transmission line will be removed and replaced with a double circuit overhead line. The project will also include a short (one-third mile) realignment of an existing line to permit connection with the new switching station. In accordance with the Council on Environmental Quality (CEQ) regulations for implementing the procedural provisions of the National Environmental Policy Act of 1969 (NEPA), 40 CFR Parts 1500--1508, the Department of Energy (DOE) has determined that an environmental impact statement (EIS) is not required for the proposed project. This determination is based on the information contained in this environmental assessment (EA) prepared by Western. The EA identifies and evaluates the environmental and socioeconomic effects of the proposed action, and concludes that the advance impacts on the human environment resulting from the proposed project would not be significant. 8 refs., 3 figs., 1 tab.

  1. Ship Creek bioassessment investigations

    SciTech Connect

    Cushing, C.E.; Mueller, R.P.; Murphy, M.T.

    1995-06-01

    Pacific Northwest Laboratory (PNL) was asked by Elmendorf Air Force Base (EAFB) personnel to conduct a series of collections of macroinvertebrates and sediments from Ship Creek to (1) establish baseline data on these populations for reference in evaluating possible impacts from Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) activities at two operable units, (2) compare current population indices with those found by previous investigations in Ship Creek, and (3) determine baseline levels of concentrations of any contaminants in the sediments associated with the macroinvertebrates. A specific suite of indices established by the US Environmental Protection Agency (EPA) was requested for the macroinvertebrate analyses; these follow the Rapid Bioassessment Protocol developed by Plafkin et al. (1989) and will be described. Sediment sample analyses included a Microtox bioassay and chemical analysis for contaminants of concern. These analyses included, volatile organic compounds, total gasoline and diesel hydrocarbons (EPA method 8015, CA modified), total organic carbon, and an inductive-coupled plasma/mass spectrometry (ICP/MS) metals scan. Appendix A reports on the sediment analyses. The Work Plan is attached as Appendix B.

  2. Channel morphology of Cottonwood Creek near Cottonwood, California, from 1940 to 1985

    USGS Publications Warehouse

    McCaffrey, W.F.; Blodgett, J.C.; Thornton, J.L.

    1988-01-01

    Proposed construction of two dams on Cottonwood Creek California , has caused concern that resulting streamflow modification may alter downstream channel morphology. Baseline information on Cottonwood Creek channel characteristics from 1982-83 field surveys and 1940-84 aerial photographs indicates an alluvial channel that consists of a braided inner main channel within a broader flood channel, with no clear topographic break between the main and flood channels. The braided channel is subject to large and rapid position shifts in the flood channel, which meanders within the valley fill; however, the position of the flood channel has remained relatively stable since 1940. Mean slope of Cottonwood Creek is 0.0017 and that of South Fork Cottonwood Creek is 0.0020. Fluctuations of mean bed elevation appear to be random with no apparent long-term trend of aggradation or degradation. Mean bed-material size ranged from 3 to 82 millimeters. Low-flow channel sinuosity ranged from 1.04 to 1.47 from 1940 to 1984. Cumulative lateral migration for Cottonwood Creek decreased upstream, while for South Fork, it remained relatively constant. Net lateral migration was toward the right bank on Cottonwood Creek whereas no trend in net lateral migration is apparent for the South Fork. (USGS)

  3. 75 FR 5631 - Wolf Creek Nuclear Operating Corporation, Wolf Creek Generating Station; Environmental Assessment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-03

    ... COMMISSION Wolf Creek Nuclear Operating Corporation, Wolf Creek Generating Station; Environmental Assessment... Wolf Creek Nuclear Operating Corporation (WCNOC, the licensee), for operation of the Wolf Creek... Statement for License Renewal of Nuclear Plants: Wolf Creek Generating Station--Final Report (NUREG-1437...

  4. Water temperature effects from simulated dam operations and structures in the Middle Fork Willamette River, western Oregon

    USGS Publications Warehouse

    Buccola, Norman L.; Turner, Daniel F.; Rounds, Stewart A.

    2016-09-14

    Significant FindingsStreamflow and water temperature in the Middle Fork Willamette River (MFWR), western Oregon, have been regulated and altered since the construction of Lookout Point, Dexter, and Hills Creek Dams in 1954 and 1961, respectively. Each year, summer releases from the dams typically are cooler than pre-dam conditions, with the reverse (warmer than pre-dam conditions) occurring in autumn. This pattern has been detrimental to habitat of endangered Upper Willamette River (UWR) Chinook salmon (Oncorhynchus tshawytscha) and UWR winter steelhead (O. mykiss) throughout multiple life stages. In this study, scenarios testing different dam-operation strategies and hypothetical dam-outlet structures were simulated using CE-QUAL-W2 hydrodynamic/temperature models of the MFWR system from Hills Creek Lake (HCR) to Lookout Point (LOP) and Dexter (DEX) Lakes to explore and understand the efficacy of potential flow and temperature mitigation options.Model scenarios were run in constructed wet, normal, and dry hydrologic calendar years, and designed to minimize the effects of Hills Creek and Lookout Point Dams on river temperature by prioritizing warmer lake surface releases in May–August and cooler, deep releases in September–December. Operational scenarios consisted of a range of modified release rate rules, relaxation of power-generation constraints, variations in the timing of refill and drawdown, and maintenance of different summer maximum lake levels at HCR and LOP. Structural scenarios included various combinations of hypothetical floating outlets near the lake surface and hypothetical new outlets at depth. Scenario results were compared to scenarios using existing operational rules that give temperature management some priority (Base), scenarios using pre-2012 operational rules that prioritized power generation over temperature management (NoBlend), and estimated temperatures from a without-dams condition (WoDams).Results of the tested model scenarios led

  5. CG-DAMS: Concrete gravity dam stability analysis software

    SciTech Connect

    Not Available

    1993-01-01

    CG-DAMS is a finite element based program written specifically for the stability analysis of concrete gravity dams. The code automates the prediction and evaluation of cracking in the dam, along the dam-rock interface, and in the foundation using incremental nonlinear analysis techniques based on the smeared crack'' approach. Its primary application is in the computation of dam-rock interface sliding stability factors of safety. The automated procedure for crack propagation analysis replaces the trial-and-error cracked-base analysis method commonly used in gravity dam safety analyses. This Application manual of CG-DAMS illustrates, through sample problems, the many features of the software. Example problems illustrate the capabilities of both CG-DAMS-PC and CG-DAMS-ABAQUS. CG-DAMS-PC is a menu driven program that runs on 386/486 PCs under the DOS operating system (4 Megabytes RAM, 25 Megabytes of hard disk space). CG-DAMS-ABAQUS is a pre- and post-processor along with a concrete constitutive model and distributed load module that interfaces with the ABAQUS general purpose finite element program. The PC program contains thermal analysis capabilities, a rough crack constitutive model, and an interface to the CRFLOOD software not available with the ABAQUS version. The CG-DAMS-ABAQUS program contains time marching dynamic analysis capabilities not available with the PC program. Example analyses presented include static, pseudo dynamic, and time marching dynamic analyses. The manual also presents sensitivity evaluations on mesh size and foundation material strength. Comparisons are presented between CG-DAMS and gravity method calculations. Comparisons with other finite element software are included for the dynamic time history analyses.

  6. Assess Current and Potential Salmonid Production in Rattlesnake Creek Associated with Restoration Efforts; Yakama Indian Nation, Annual Report 2002-2003.

    SciTech Connect

    Morris, Gregory

    2003-05-01

    This document represents the FY2002 BPA contract Statement of Work for the Yakama Nation (YN) portion of the project entitled 'Assessment of current and potential salmonid production in Rattlesnake Creek associated with restoration efforts'. The purpose of the project is to complete detailed surveys of water quality, fish populations, habitat conditions and riparian health in the Rattlesnake Creek sub-basin of the White Salmon River in south central Washington. Results of the surveys will be used to establish Rattlesnake Creek sub-basin baseline environmental factors prior to anticipated removal of Condit Dam in 2006 and enable cost-effective formulation of future watershed restoration strategies.

  7. Coyote Creek Trash Reduction Project: Clean Creeks, Healthy Communities

    EPA Pesticide Factsheets

    Information about the SFBWQP Coyote Creek Trash Reduction Project, part of an EPA competitive grant program to improve SF Bay water quality focused on restoring impaired waters and enhancing aquatic resources.

  8. PINEY CREEK WILDERNESS, MISSOURI.

    USGS Publications Warehouse

    Pratt, Walden P.; Ellis, Clarence

    1984-01-01

    The Piney Creek Wilderness in southwest Missouri was investigated by geologic, geochemical, and mineral-occurrence surveys. These is no evidence of metallic mineral deposits in the rock units exposed at the surface in the wilderness, but the entire area has a probable potential for significant zinc-lead deposits at depths of several hundred feet. A probable potential also exists for a small to moderate-sized iron ore deposit at a depth of at least 2100 ft along the northwest side of the wilderness. Evaluation of these potentials would require deep drilling, and in the case of the possible iron ore deposit, a detailed magnetic survey. No energy resource potential was identified within this area.

  9. GEE CREEK WILDERNESS, TENNESSEE.

    USGS Publications Warehouse

    Epstein, Jack B.; Gazdik, Gertrude C.

    1984-01-01

    On the basis of geologic, geochemical, and mine and prospect surveys, it was determined that the Gee Creek Wilderness, Tennessee has little promise for the occurrence of mineral resources. Iron ore was formerly mined, but the deposits are small, have a high phosphorous content, and are inaccessible. Shale, suitable for brick or lightweight aggregate, and sandstone, which could be utilized for crushed stone or sand, are found in the area, but are also found in areas closer to potential markets. The geologic setting precludes the presence of oil and gas resources in the surface rocks, but the possibility of finding natural gas at depth below the rocks exposed in the area cannot be discounted. Geophysical exploration would be necessary to define the local structure in rocks at depth to properly evaluate the potential of the area for gas.

  10. Water, Rivers and Creeks

    NASA Astrophysics Data System (ADS)

    Mac, Robert D.

    Luna B. Leopold's intent in Water, Rivers and Creeks was to provide a nontechnical primer on hydrology and water resources, and he succeeded admirably. The terse style is reminiscent of the mystery writer Mickey Spillane, though the content is complex science expounded in simple terms. “Part I, Hydrology and Morphology,” makes up the first two thirds of the book, and in this section, Leopold develops hydrologic and geomorphic concepts and principles using analogies with items common to any household. Garden hoses, dishpans, bath tubs, and sieves provide illuminating examples of the effects of channel storage on stream flow, water tables and the movement of groundwater, sustainable yield and the storage equation, and the infiltration/percolation process.

  11. Geomorphic evolution to large check-dam removal on a mountain river in Taiwan

    NASA Astrophysics Data System (ADS)

    Wang, H.; Kuo, W.

    2012-12-01

    As aging dams become obsolete or economically inefficient, dam removal has become an important aspect of river restoration in recent years. While various efforts are ongoing to enhance our understanding, studies documenting the physical and ecological responses to dam removal are still lacking, particularly for removal of large dams in mountain river and following major flood, where the size of watersheds and the amount of reservoir sediment released can be much greater than for most previously studied dam removals. This presentation documents the geomorphic evolution to removal of a large dam on a coarse-grained, steep (an order of magnitude greater than on the Marmot) mountain channel in Taiwan. The Chijiawan creek is the only habitat in Taiwan of the endangered Formosan landlocked salmon. Its habitat has been cut significantly since the 1960s following construction of check dams designed to prevent reservoir sedimentation downstream. The largest and lowermost barrier on Chijiawan creek is the 15m high, "No. 1 Check Dam" built in 1971. Forty years later, the dam had backfilled with about an estimated 0.2 million m3 sediment and its toe had been scoured about 4m below its foundation, raising a significant risk of dam failure. For these reasons, the Shei-Pa National Park removed the dam in late May 2011. To monitor the channel response to dam removal, we conducted surveys of grain size distributions, cross-sectional and longitudinal profiles, analyzed the stage and turbidity records, and carried out repeat photography. Channel changes were greatest immediately following removal as a result of the high stream power, steep energy slope, and unconsolidated alluvial fill behind the dam. Headcut propagation caused immediate removal of the sand-grade sediment and progressive channel widening. One month after dam removal, a minor flood event with the estimated peak discharge of 20 m3/s excavated a big wedge of sediment from the impoundment. Two months after dam removal

  12. Environmental Assessment : Tumwater Dam and Dryden Dam Fish Passage Projects.

    SciTech Connect

    United States. Bonneville Power Administration.

    1986-01-01

    Existing fish passage facilities at Tumwater Dam and Dryden Dam currently do not effectively pass the anadromous fish runs in the Wenatchee River. At Tumwater Dam, the proposed action includes the construction of a new fish ladder which will improve water flow characteristics and, subsequently, fish passage. In order to improve fish passage at Dryden Dam, a new fish ladder will be constructed to replace the existing ladder and another ladder will be constructed. The proposed action will supplement mitigation of adverse hydroelectric impacts to the fisheries of the Columbia River basin. The proposal to fund the Tumwater Dam and Dryden Dam Fish Passage facilities does not appear to constitute a major Federal action significantly affecting the quality of the human environment and would not require an environmental impact statement.

  13. Perspective view of span over French Creek and east abutment, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Perspective view of span over French Creek and east abutment, looking NW. - Pennsylvania Railroad, French Creek Trestle, Spanning French Creek, north of Paradise Street, Phoenixville, Chester County, PA

  14. 1. DEADWOOD CREEK BRIDGE FACING SOUTHWEST. MOUNT RAINIER AND EMMONS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. DEADWOOD CREEK BRIDGE FACING SOUTHWEST. MOUNT RAINIER AND EMMONS GLACIER VISIBLE IN BACKGROUND. - Deadwood Creek Bridge, Spanning Deadwood Creek on Mather Memorial Parkway, Longmire, Pierce County, WA

  15. Post Falls Dam stabilization

    SciTech Connect

    Gorny, R.H.; Gibson, J.Z.

    1995-12-31

    The stability of Washington Water Power`s (WWP) Middle Channel and South Channel Dams at Post Falls, Idaho, were evaluated as required by the Federal Energy Regulatory Commission (FERC) and did not meet guideline stability criteria under Probable Maximum Flood (PMF) loading. This paper describes the stability analysis, stabilization design, design parameters, construction of the anchors, and compares the design and as-built conditions. Value engineering was used to select the optimal stabilization measure. Constructibility, cost, and schedule were major considerations. The value engineering study evaluated 41 potential stabilization alternatives, selected post tensioning, and used scheduling criteria to optimize the design. Access considerations required the installation of five 47 strand, 7400 kN (1645{sup k}) anchors in the Middle Dam, and installation of six anchors with different capacities anchors in the South Channel Dam. The Washington Water Power - Black & Veatch team used value engineering, contractor prequalification, resident engineering services provided by the engineer, and strong construction support provided by the Owner to successfully complete the project on a very tight schedule.

  16. Geological and Seismological Evaluation of Earthquake Hazards at Ririe Dam, Idaho

    DTIC Science & Technology

    1991-07-01

    Ririe Dam is located in southeastern Idaho on Willow Creek, a tributary to the Snake River . The damsite is located in Bonneville County, approximately...3.1 miles) to the north is the southern edge of the Snake River Plain, a vast lava plain stretching across the entire width of southern Idaho. The...eastern portion of the Snake River Plain adjoins the Yellowstone and Island Park Calderas. Calderas, the sites of former volcanic activity, are large

  17. Cave Buttes Dam Foundation Report. Gila River Basin: Phoenix, Arizona and Vicinity (Including New River).

    DTIC Science & Technology

    1983-08-01

    Dike No. 1. CP drill setting pipe for grout holes in the zone TI area. 25 Jan 78 .................................. 77 87. Dike No. 1. Pressure...the town of Cave -reek. The creek crosses six miles of alluvial plain before it bends northeast at a point one mile north of Cave Buttes Dam. The plain...resolved by puddling grout at the surface to seal the surface fractures. The holes were filled to the ground surface by hand and the pipe above ground

  18. Alameda Creeks Healthy Watersheds Project

    EPA Pesticide Factsheets

    Information about the SFBWQP Alameda Creeks Healthy Watersheds Project, part of an EPA competitive grant program to improve SF Bay water quality focused on restoring impaired waters and enhancing aquatic resour

  19. 77 FR 13592 - AER NY-Gen, LLC; Eagle Creek Hydro Power, LLC, Eagle Creek Water Resources, LLC, Eagle Creek Land...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-07

    ... Energy Regulatory Commission AER NY-Gen, LLC; Eagle Creek Hydro Power, LLC, Eagle Creek Water Resources... Power, LLC, Eagle Creek Water Resources, LLC, and Eagle Creek Land Resources, LLC (transferees) filed an...) 805-1469. Transferees: Mr. Bernard H. Cherry, Eagle Creek Hydro Power, LLC, Eagle Creek...

  20. Dam Failure Planning Report, Winnibigoshish Dam, Mississippi River, Minnesota.

    DTIC Science & Technology

    1985-01-01

    A ̂ 57 231 DAM FAILUR PLANNING R-PORT WINNISIGOSI4IS OAl -- I 7 A1 723 MISSISSIPPI RIVER iINNESO&(US ARMy 1INEIlSIRCI SI LOUIS M0 JAN 85 A,’ F I F D...TSCATALOG NME 4. TITLE (and Subti.) Dam Failure’Planning Report, s. TYPE OF REPORT & PERIOD COVERED Winnibigoshish Dam, Mississippi River , Minnesota 6...safety at Winnibigoshish Dam near Deer River , Minnesota. Discussion is made including computer programs used, routing methods used, assumptions made

  1. Geomorphic Responses to Check-Dam Removal on a Steep Mountain River in Taiwan

    NASA Astrophysics Data System (ADS)

    Wang, H. W.; Kuo, W. C.

    2014-12-01

    The Chijiawan creek, located in the mountains of Central Taiwan with a strongly seasonal hydrology, high discharge and sediment yields, is the only habitat in Taiwan of the endangered Formosan landlocked salmon. The 13-m-high No. 1 Check Dam was the largest and lowermost barrier on Chijiawan creek built in 1972. After forty years, the dam had 4-m scouring holes below its foundation, raising a significant risk of dam failure. Due to the safety concern and habitat restoration, the Shei-Pa National Park removed the dam in late May 2011. This paper documents the channel evolution after its removal by focusing on understanding the geomorphic responses to sediment processes and complexities of hydrological processes. We collected the hourly discharge data of a Taipower gaging station located 6.8 km from the dam from 2010 to 2013 and conducted surveys of grain size distributions, cross-sectional and longitudinal profiles, and carried out repeat photography. One month after dam removal, a one-year event (Typhoon Meari) excavated a wedge of sediment from the impoundment. The knickpoint migrated to 200 m upstream from the dam and about 20,000 m3 of sediment had eroded from the reservoir. The profile remained pretty much unchanged until a year after in June 2012. Following a 20-year event (Typhoon Saola) in August 2012, the highest flow after dam removal to present, the channel significantly changed and the knickpoint migrated to 800 m upstream to the dam. The cumulative eroded amount increased to 150,000 m3, about three-thirds of the former impounded sediment. After a 5-year event (Typhoon Soulik) later on in July 2013, the knickpoint did not show much difference and the eroded amount of impounded sediment only increased 10,000 m3. However, the surveyed cross-sections showed obvious channel form changes and thalweg migration. It is likely that the entire bed was mobilized during the earlier high flows (Typhoon Saola), resulting in more easily mobilized bed material. As many

  2. Ecohydrology of a Dammed Amazon

    NASA Astrophysics Data System (ADS)

    Timpe, K. A.; Kaplan, D. A.

    2016-12-01

    The Amazon River watershed is the world's largest river basin and provides >US$30 billion/yr in ecosystem services to local populations, national societies and humanity at large. Construction of >30 large hydroelectric dams and >170 small dams in the Brazilian Amazon is currently underway as a result of governmental plans geared toward increased energy security, economic growth, improved living standards and industrialization. Changes in the Amazon's freshwater ecosystems from the development of hydropower will have a cascade of physical, ecological, and social effects at local to global scales. Here we demonstrate the extensive and large-scale effects of hydroelectric dams in the Amazon region on hydrologic parameters calculated using the Indicators of Hydrologic Alteration (IHA) method applied to 33 small and large dams in the Brazilian Amazon. Our analysis provides the first holistic assessment of hydrological alterations (HA) caused by Amazonian dams and offers insight on the primary physical and management drivers of dam impacts. Across sites, results show that dams have affected all ecologically important flow characteristics (i.e., magnitude, duration, timing, frequency and rate of change of pulse events). While each dam/river system are unique, some dams cause substantially greater HA. The "worst" dams were Balbina (HA=108%), Manso (HA=62%), and Serra da Mesa (HA=48%). All three are "large" dams with substantial reservoirs, however Serra da Mesa produces 6 times more electricity than either Balbina or Manso, with lower impact. The most dramatic dam-induced shifts in hydrologic regime were related to the frequency/duration and frequency/rate of change of pulse events. HA on rivers with multiple dams was only 8% higher than those with individual dams. Dam elevation and reservoir area were the best environmental predictors of HA. Results suggest that hydrological impacts from dams are similar among temperate and tropical climates (i.e., peak flows are often

  3. SERVICE CREEK ROADLESS AREA, COLORADO.

    USGS Publications Warehouse

    Schmidt, Paul W.; Kluender, S.A.

    1984-01-01

    The Service Creek Roadless Area, near Steamboat Springs, Colorado, was studied. Geologic mapping and geochemical sampling did not identify any mineral-resource potential in the area. No mining activity has been recorded for the area. An east-west topographic linear feature just south of Silver Creek, which contains clusters of single and multi-element anomalies of certain rare-earth and metallic minerals deserves further study.

  4. Water-resources monitoring in the Cottonwood Creek area, Shasta and Tehama counties, California, 1982-83

    USGS Publications Warehouse

    Fogelman, R.P.; Evenson, K.D.

    1985-01-01

    The Cottonwood Creek study area in the Redding basin, California , contains a network of wells established to provide baseline information on ground-water levels and quality prior to the completion of two proposed dams, one on Cottonwood Creek and one on South Fork Cottonwood Creek. Analysis of monthly ground-water levels from September 1982 through September 1983 shows lowest water levels in autumn and highest in spring. The ground-water surface slopes east and has a mound at Anderson-Cottonwood Irrigation District Canal near the town of Cottonwood. Future studies here could provide additional information needed for subsequent modeling studies. Data are insufficient upstream from the damsites, specifically in areas of future impoundment where the monitoring network could be expanded. Comparison of ground-water quality samples collected from periods of lowest and highest water levels showed little chemical variation. Ground water is good to excellent with respect to recommended drinking-water standards. Ground-water types north of Cottonwood Creek are sodium magnesium or magnesium sodium bicarbonate and south of Cottonwood Creek are calcium magnesium or magnesium calcium bicarbonate. Surface-water samples from Cottonwood and South Fork Cottonwood Creeks indicate water chemically similar to ground water south of Cottonwood Creek. (USGS)

  5. 1000 dams down and counting

    USGS Publications Warehouse

    O'Connor, James E.; Duda, Jeff J.; Grant, Gordon E.

    2015-01-01

    Forty years ago, the demolition of large dams was mostly fiction, notably plotted in Edward Abbey's novel The Monkey Wrench Gang. Its 1975 publication roughly coincided with the end of large-dam construction in the United States. Since then, dams have been taken down in increasing numbers as they have filled with sediment, become unsafe or inefficient, or otherwise outlived their usefulness (1) (see the figure, panel A). Last year's removals of the 64-m-high Glines Canyon Dam and the 32-m-high Elwha Dam in northwestern Washington State were among the largest yet, releasing over 10 million cubic meters of stored sediment. Published studies conducted in conjunction with about 100 U.S. dam removals and at least 26 removals outside the United States are now providing detailed insights into how rivers respond (2, 3).

  6. Blue Saturn

    NASA Image and Video Library

    2004-03-19

    Bands and spots in Saturn's atmosphere, including a dark band south of the equator with a scalloped border, are visible in this image from the Cassini-Huygens spacecraft. The narrow angle camera took the image in blue light on Feb. 29, 2004. The distance to Saturn was 59.9 million kilometers (37.2 million miles). The image scale is 359 kilometers (223 miles) per pixel. Three of Saturn's moons are seen in the image: Enceladus (499 kilometers, or 310 miles across) at left; Mimas (398 kilometers, or 247 miles across) left of Saturn's south pole; and Rhea (1,528 kilometers, or 949 miles across) at lower right. The imaging team enhanced the brightness of the moons to aid visibility. The BL1 broadband spectral filter (centered at 451 nanometers) allows Cassini to "see" light in a part of the spectrum visible as the color blue to human eyes. Scientist can combine images made with this filter with those taken with red and green filters to create full-color composites. Scientists can also assess cloud heights by combining images from the blue filter with images taken in other spectral regions. For example, the bright clouds that form the equatorial zone are the highest in altitude and have pressures at their tops of about one quarter of Earth's atmospheric pressure at sea level. The cloud tops at middle latitudes are lower in altitude and have higher pressures of about half that found at sea level. Analysis of Saturn images like this one will be extremely useful to researchers assessing cloud altitudes during the Cassini-Huygens mission. http://photojournal.jpl.nasa.gov/catalog/PIA05383

  7. 76 FR 35873 - Blue Heron Hydro LLC; Notice of Application Ready for Environmental Analysis and Soliciting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-20

    ...] Blue Heron Hydro LLC; Notice of Application Ready for Environmental Analysis and Soliciting Comments... Heron Hydro LLC. e. Name of Project: Ball Mountain Dam Hydroelectric Project. f. Location: At the U.S..., Blue Heron Hydro LLC, 113 Bartlett Road, Plainfield, Vermont 05667. (802) 454-1874. i. FERC Contact:...

  8. USGS Dam Removal Science Database

    USGS Publications Warehouse

    Bellmore, J. Ryan; Vittum, Katherine; Duda, Jeff J.; Greene, Samantha L.

    2015-01-01

    This database is the result of an extensive literature search aimed at identifying documents relevant to the emerging field of dam removal science. In total the database contains 179 citations that contain empirical monitoring information associated with 130 different dam removals across the United States and abroad. Data includes publications through 2014 and supplemented with the U.S. Army Corps of Engineers National Inventory of Dams database, U.S. Geological Survey National Water Information System and aerial photos to estimate locations when coordinates were not provided. Publications were located using the Web of Science, Google Scholar, and Clearinghouse for Dam Removal Information.

  9. Health impacts of large dams

    SciTech Connect

    Lerer, L.B.; Scudder, T.

    1999-03-01

    Large dams have been criticized because of their negative environmental and social impacts. Public health interest largely has focused on vector-borne diseases, such as schistosomiasis, associated with reservoirs and irrigation projects. Large dams also influence health through changes in water and food security, increases in communicable diseases, and the social disruption caused by construction and involuntary resettlement. Communities living in close proximity to large dams often do not benefit from water transfer and electricity generation revenues. A comprehensive health component is required in environmental and social impact assessments for large dam projects.

  10. Hungry Horse Dam Fisheries Mitigation, 1992-1993 Progress Report.

    SciTech Connect

    DosSantos, Joe; Vashro, Jim; Lockard, Larry

    1994-06-01

    In February of 1900, over forty agency representatives and interested citizens began development of the 1991 Mitigation Plan. This effort culminated in the 1993 Implementation Plan for mitigation of fish losses attributable to the construction and operation of Hungry Horse Dam. The primary purpose of this biennial report is to inform the public of the status of ongoing mitigation activities resulting from those planning efforts. A habitat improvement project is underway to benefit bull trout in Big Creek in the North Fork drainage of the Flathead River and work is planned in Hay Creek, another North Fork tributary. Bull trout redd counts have been expanded and experimental programs involving genetic evaluation, outmigrant monitoring, and hatchery studies have been initiated, Cutthroat mitigation efforts have focused on habitat improvements in Elliott Creek and Taylor`s Outflow and improvements have been followed by imprint plants of hatchery fish and/or eyed eggs in those streams. Rogers Lake west of Kalispell and Lion Lake, near Hungry Horse, were chemically rehabilitated. Cool and warm water fish habitat has been improved in Halfmoon Lake and Echo Lake. Public education and public interest is important to the future success of mitigation activities. As part of the mitigation team`s public awareness responsibility we have worked with numerous volunteer groups, public agencies, and private landowners to stimulate interest and awareness of mitigation activities and the aquatic ecosystem. The purpose of this biennial report is to foster public awareness of, and support for, mitigation activities as we move forward in implementing the Hungry Horse Dam Fisheries Mitigation Implementation Plan.

  11. Application of GPS and GIS to map channel features in Walnut Creek, Iowa

    USGS Publications Warehouse

    Schilling, K.E.; Wolter, C.F.

    2000-01-01

    A 12-km reach of Walnut Creek was mapped at the Neal Smith National Wildlife Refuge in Jasper County, Iowa to identify and prioritize areas of the stream channel in need of further investigation or restoration. Channel features, including streambank conditions, bottom sediment materials and thickness, channel cross-sections, debris dams, tile lines, tributary creeks, and cattle access points, were located to one-meter accuracy with global positioning system (GPS) equipment and described while traversing the stream. The GPS data were exported into a Geographic Information System (GIS) format, and field descriptions were added to create a series of coverages. Channel features were coupled with existing land cover data for analysis. Left and right streambank erosion rates varied from slight in many areas to severe at outside meander bends, debris dams or cattle access points. Erosion estimates from this study suggest that stream banks contribute about 50 percent of the annual suspended sediment load in the channel. Substrate materials varied from bare or thinly mantled pre-Illinoian till to thick silty muck (> 0.3 m) behind some debris dams and cattle access points. Occurrences of sand and gravel areas were generally restricted to cattle access areas and bridge crossings. A total of 81 debris dams were identified in the stream channel, ranging from fallen trees and beaver dams to several large debris dams. Numerous tile lines (52 total) and tributary creeks (45 total) were mapped as contributing flow to the main channel. Cross-sections measured at 34 locations indicated Walnut Creek averages 10.64 m wide and 2.77 m deep, with the width and depth increasing downstream. Channelization and tile discharge in row crop land use areas have contributed to increased bed degradation and channel widening throughout the watershed. The results of this study indicate the effectiveness of a one-time detailed mapping program to characterize stream system variability and identify

  12. Rapid evolution of a marsh tidal creek network in response to sea level rise.

    NASA Astrophysics Data System (ADS)

    Hughes, Z. J.; Fitzgerald, D. M.; Mahadevan, A.; Wilson, C. A.; Pennings, S. C.

    2008-12-01

    In the Santee River Delta (SRD), South Carolina, tidal creeks are extending rapidly onto the marsh platform. A time-series of aerial photographs establishes that these channels were initiated in the 1950's and are headward eroding at a rate of 1.9 m /yr. Short-term trends in sea level show an average relative sea level rise (RSLR) of 4.6 mm/yr over a 20-year tide gauge record from nearby Winyah Bay and Charleston Harbor (1975-1995). Longer-term (85-year) records in Charleston suggest a rate of 3.2 mm/yr. RSLR in the SRD is likely even higher as sediment cores reveal that the marsh is predominantly composed of fine-grained sediment, making it highly susceptible to compaction and subsidence. Furthermore, loss in elevation will have been exacerbated by the decrease in sediment supply due to the damming of the Santee River in 1939. The rapid rate of headward erosion indicates that the marsh platform is in disequilibrium; unable to keep pace with RSLR through accretionary processes and responding to an increased volume and frequency of inundation through the extension of the drainage network. The observed tidal creeks show no sinuosity and a distinctive morphology associated with their young age and biological mediation during their evolution. Feedbacks between tidal flow, vegetation and infauna play a strong role in the morphological development of the creeks. The creek heads are characterized by a region denuded of vegetation, the edges of which are densely populated and burrowed by Uca Pugnax (fiddler crab). Crab burrowing destabilizes sediment, destroys rooting and impacts drainage. Measured infiltration rates are three orders of magnitude higher in the burrowed regions than in a control area (1000 ml/min and 0.6 ml/min respectively). Infiltration of oxygenated water enhances decomposition of organic matter and root biomass is reduced within the creek head (marsh=4.3 kg/m3, head=0.6 kg/m3). These processes lead to the removal and collapse of the soils, producing

  13. Big Bayou Creek and Little Bayou Creek Watershed Monitoring Program

    SciTech Connect

    Kszos, L.A.; Peterson, M.J.; Ryon; Smith, J.G.

    1999-03-01

    Biological monitoring of Little Bayou and Big Bayou creeks, which border the Paducah Site, has been conducted since 1987. Biological monitoring was conducted by University of Kentucky from 1987 to 1991 and by staff of the Environmental Sciences Division (ESD) at Oak Ridge National Laboratory (ORNL) from 1991 through March 1999. In March 1998, renewed Kentucky Pollutant Discharge Elimination System (KPDES) permits were issued to the US Department of Energy (DOE) and US Enrichment Corporation. The renewed DOE permit requires that a watershed monitoring program be developed for the Paducah Site within 90 days of the effective date of the renewed permit. This plan outlines the sampling and analysis that will be conducted for the watershed monitoring program. The objectives of the watershed monitoring are to (1) determine whether discharges from the Paducah Site and the Solid Waste Management Units (SWMUs) associated with the Paducah Site are adversely affecting instream fauna, (2) assess the ecological health of Little Bayou and Big Bayou creeks, (3) assess the degree to which abatement actions ecologically benefit Big Bayou Creek and Little Bayou Creek, (4) provide guidance for remediation, (5) provide an evaluation of changes in potential human health concerns, and (6) provide data which could be used to assess the impact of inadvertent spills or fish kill. According to the cleanup will result in these watersheds [Big Bayou and Little Bayou creeks] achieving compliance with the applicable water quality criteria.

  14. Suspended-sediment loads from major tributaries to the Missouri River between Garrison Dam and Lake Oahe, North Dakota, 1954-98

    USGS Publications Warehouse

    Macek-Rowland, Kathleen M.

    2000-01-01

    Annual suspended-sediment loads for water years 1954 through 1998 were estimated for the major tributaries in the Missouri River Basin between Garrison Dam and Lake Oahe in North Dakota and for the Missouri River at Garrison Dam and the Missouri River at Bismarck, N. Dak. The major tributaries are the Knife River, Turtle Creek, Painted Woods Creek, Square Butte Creek, Burnt Creek, Heart River, and Apple Creek. Sediment and streamflow data used to estimate the suspended-sediment loads were from selected U.S. Geological Survey streamflow-gaging stations located within each basin. Some of the stations had no sediment data available and limited continuous streamflow data for water years 1954 through 1998. Therefore, data from nearby streamflow-gaging stations were assumed for the calculations.The Heart River contributed the largest amount of suspended sediment to the Missouri River for 1954-98. Annual suspended-sediment loads in the Heart River near Mandan ranged from less than 1 to 40 percent of the annual suspended-sediment load in the Missouri River. The Knife River contributed the second largest amount of suspended sediment to the Missouri River. Annual suspended-sediment loads in the Knife River at Hazen ranged from less than 1 to 19 percent of the annual suspended-sediment load in the Missouri River. Apple Creek, Turtle Creek, Painted Woods Creek, Square Butte Creek, and Burnt Creek all contributed 2 percent or less of the annual suspended-sediment load in the Missouri River. The Knife River and the Heart River also had the largest average suspended-sediment yields for the seven tributaries. The yield for the Knife River was 91.1 tons per square mile, and the yield for the Heart River was 133 tons per square mile. The remaining five tributaries had yields of less than 24 tons per square mile based on total drainage area.

  15. Dam-incuced Changes in Geomorphology and Vegetation Along a Stream in Northern California

    NASA Astrophysics Data System (ADS)

    Gordon, E.

    2004-12-01

    Dams are well known for trapping sediment and altering natural flow regimes that affect downstream channel geometry and the distribution of riparian vegetation. While many studies have evaluated pre-dam and post-dam effects, and land-use activity adjacent to the channel on riparian vegetation and channel morphology, few have included GIS mapping and an undammed reference stream to serve as a control for studying responses in an alluvial system. This paper evaluated the effects of Warm Springs Dam (established in 1983) on the variation, magnitude, and directional changes of stream channel geometry and riparian vegetation distribution along Dry Creek and compared the changes to a nearby undammed stream with similar geomorphic and land-use characteristics. Six historical black and white aerial photographs were examined for both streams over a 34 year period prior to the dam's establishment (1942-1976), and a 13 year period after (1987-2000), after being scanned and georeferenced in a GIS. For each year, three stream and riparian features were manually digitized on-screen, including the center of the stream channel, bankfull width, and patches of riparian vegetation, as well as the distance land-use was to the channel. Multi-way statistical analyses evaluated variation in stream length and distance that land-use moved from the channel as well as variation and change in the rate and direction of bankfull area and riparian area. Rating curves and hydraulic geometry exponents used stream gauge measurements that analyzed changes in channel geometry (width, depth and velocity). While mean variation in the reference stream's length and bankfull area remained constant during the 58-year study period, Dry Creek's stream length varied 84% (P=0.02) less (shortened 550 m within the 10.5 km study reach), and bankfull area decreased by 52.5% (P=0.01) after the dam. Riparian vegetation decreased 28.5% (P<0.0001) from 1942-1986 on Dry Creek then increased by 2000 to levels similar to

  16. Big dams and salmon evolution: changes in thermal regimes and their potential evolutionary consequences

    PubMed Central

    Angilletta, Michael J; Ashley Steel, E; Bartz, Krista K; Kingsolver, Joel G; Scheuerell, Mark D; Beckman, Brian R; Crozier, Lisa G

    2008-01-01

    Dams designed for hydropower and other purposes alter the environments of many economically important fishes, including Chinook salmon (Oncorhynchus tshawytscha). We estimated that dams on the Rogue River, the Willamette River, the Cowlitz River, and Fall Creek decreased water temperatures during summer and increased water temperatures during fall and winter. These thermal changes undoubtedly impact the behavior, physiology, and life histories of Chinook salmon. For example, relatively high temperatures during the fall and winter should speed growth and development, leading to early emergence of fry. Evolutionary theory provides tools to predict selective pressures and genetic responses caused by this environmental warming. Here, we illustrate this point by conducting a sensitivity analysis of the fitness consequences of thermal changes caused by dams, mediated by the thermal sensitivity of embryonic development. Based on our model, we predict Chinook salmon likely suffered a decrease in mean fitness after the construction of a dam in the Rogue River. Nevertheless, these demographic impacts might have resulted in strong selection for compensatory strategies, such as delayed spawning by adults or slowed development by embryos. Because the thermal effects of dams vary throughout the year, we predict dams impacted late spawners more than early spawners. Similar analyses could shed light on the evolutionary consequences of other environmental perturbations and their interactions. PMID:25567632

  17. Hydrologic response of streams restored with check dams in the Chiricahua Mountains, Arizona

    USGS Publications Warehouse

    Norman, Laura M.; Brinkerhoff, Fletcher C.; Gwilliam, Evan; Guertin, D. Phillip; Callegary, James B.; Goodrich, David C.; Nagler, Pamela L.; Gray, Floyd

    2016-01-01

    In this study, hydrological processes are evaluated to determine impacts of stream restoration in the West Turkey Creek, Chiricahua Mountains, southeast Arizona, during a summer-monsoon season (June–October of 2013). A paired-watershed approach was used to analyze the effectiveness of check dams to mitigate high flows and impact long-term maintenance of hydrologic function. One watershed had been extensively altered by the installation of numerous small check dams over the past 30 years, and the other was untreated (control). We modified and installed a new stream-gauging mechanism developed for remote areas, to compare the water balance and calculate rainfall–runoff ratios. Results show that even 30 years after installation, most of the check dams were still functional. The watershed treated with check dams has a lower runoff response to precipitation compared with the untreated, most notably in measurements of peak flow. Concerns that downstream flows would be reduced in the treated watershed, due to storage of water behind upstream check dams, were not realized; instead, flow volumes were actually higher overall in the treated stream, even though peak flows were dampened. We surmise that check dams are a useful management tool for reducing flow velocities associated with erosion and degradation and posit they can increase baseflow in aridlands.

  18. 76 FR 4891 - Blue Heron Hydro LLC; Notice of Application Accepted for Filing and Soliciting Motions To...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-27

    ... Heron Hydro LLC. e. Name of Project: Townshend Dam Hydroelectric Project. f. Location: U.S. Army Corps of Engineers Townshend Dam on the West River near the Town of Townshend, Windham County, Vermont. g. Filed Pursuant to: Federal Power Act, 16 U.S.C. 791(a)-825(r). h. Applicant Contact: Lori Barg, Blue...

  19. 75 FR 70729 - Blue Heron Hydro, LLC; Notice of Applications Tendered for Filing With the Commission and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-18

    ... Project; Townshend Dam Hydroelectric Project. f. Location: Both projects would be constructed at existing... Act 16 U.S.C. 791(a)-825(r). h. Applicant Contact: Lori Barg, Blue Heron Hydro, LLC 113 Bartlett Road... average annual generation of approximately 6,000 megawatt-hours (MWh). The Townshend Dam Hydroelectric...

  20. War damages and reconstruction of Peruca dam

    SciTech Connect

    Nonveiller, E.; Rupcic, J. |; Sever, Z.

    1999-04-01

    The paper describes the heavy damages caused by blasting in the Peruca rockfill dam in Croatia in January 1993. Complete collapse of the dam by overtopping was prevented through quick action of the dam owner by dumping clayey gravel on the lowest sections of the dam crest and opening the bottom outlet of the reservoir, thus efficiently lowering the water level. After the damages were sufficiently established and alternatives for restoration of the dam were evaluated, it was decided to construct a diaphragm wall through the damaged core in the central dam part as the impermeable dam element and to rebuild the central clay core at the dam abutments. Reconstruction works are described.

  1. Monitoring and Evaluation of Yearling Fall Chinook Salmon Released from Acclimation Facilities Upstream of Lower Granite Dam; 1998 Annual Report.

    SciTech Connect

    Rocklage, Stephen J.

    2004-01-01

    The Nez Perce Tribe, in cooperation with the U.S. Fish and Wildlife Service and Washington Department of Fish and Wildlife, conducted monitoring and evaluation studies on Lyons Ferry Hatchery (Snake River stock) yearling fall chinook salmon that were acclimated and released at three Fall Chinook Acclimation Project sites upstream of Lower Granite Dam along with yearlings released on-station from Lyons Ferry Hatchery in 1998. The three fall chinook acclimation facilities are operated by the Nez Perce Tribe and located at Pittsburg Landing and Captain John Rapids on the Snake River and at Big Canyon Creek on the Clearwater River. Yearlings at the Big Canyon facility consisted of two size classes that are referred to in this report as 9.5 fish per pound (fpp) and 30 fpp. The Big Canyon 9.5 fpp were comparable to the yearlings at Pittsburg Landing, Captain John Rapids and Lyons Ferry Hatchery. A total of 9,942 yearlings were PIT tagged and released at Pittsburg Landing. PIT tagged yearlings had a mean fork length of 159.9 mm and mean condition factor of 1.19. Of the 9,942 PIT tagged fish released, a total of 6,836 unique tags were detected at mainstem Snake and Columbia River dams (Lower Granite, Little Goose, Lower Monumental and McNary). A total of 4,926 9.5 fpp and 2,532 30 fpp yearlings were PIT tagged and released at Big Canyon. PIT tagged 9.5 fpp yearlings had a mean fork length of 156.9 mm and mean condition factor of 1.13. PIT tagged 30 fpp yearlings had a mean fork length of 113.1 mm and mean condition factor of 1.18. Of the 4,926 PIT tagged 9.5 fpp yearlings released, a total of 3,042 unique tags were detected at mainstem Snake and Columbia River dams. Of the 2,532 PIT tagged 30 fpp yearlings released, a total of 1,130 unique tags were detected at mainstem Snake and Columbia River dams. A total of 1,253 yearlings were PIT tagged and released at Captain John Rapids. PIT tagged yearlings had a mean fork length of 147.5 mm and mean condition factor of 1.09. Of

  2. Boiling Water at Hot Creek - The Dangerous and Dynamic Thermal Springs in California's Long Valley Caldera

    USGS Publications Warehouse

    Farrar, Christopher D.; Evans, William C.; Venezky, Dina Y.; Hurwitz, Shaul; Oliver, Lynn K.

    2007-01-01

    The beautiful blue pools and impressive boiling fountains along Hot Creek in east-central California have provided enjoyment to generations of visitors, but they have also been the cause of injury or death to some who disregarded warnings and fences. The springs and geysers in the stream bed and along its banks change location, temperature, and flow rates frequently and unpredictably. The hot springs and geysers of Hot Creek are visible signs of dynamic geologic processes in this volcanic region, where underground heat drives thermal spring activity.

  3. 6. GENE WASH DAM, LOOKING NORTHWEST. SURVEY REFLECTOR IN FOREGROUND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. GENE WASH DAM, LOOKING NORTHWEST. SURVEY REFLECTOR IN FOREGROUND FOR MONITORING MOVEMENT OF DAM AND EARTH. - Gene Wash Reservoir & Dam, 2 miles west of Parker Dam, Parker Dam, San Bernardino County, CA

  4. Water quality study at the Congaree Swamp National monument of Myers Creek, Reeves Creek and Toms Creek. Technical report

    SciTech Connect

    Rikard, M.

    1991-11-01

    The Congaree Swamp National Monument is one of the last significant near virgin tracts of bottom land hardwood forests in the Southeast United States. The study documents a water quality monitoring program on Myers Creek, Reeves Creek and Toms Creek. Basic water quality parameters were analyzed. High levels of aluminum and iron were found, and recommendations were made for further monitoring.

  5. Synthesizing Studies of Dam Removal

    NASA Astrophysics Data System (ADS)

    O'Connor, Jim; East, Amy

    2014-10-01

    Dam decommissioning is rapidly emerging as an important river restoration strategy in the United States. Hundreds of dams have been removed in the past few decades, including several large ones (>10-15 meters) impounding large sediment volumes (>106 cubic meters) in the past 3 years, notably Condit Dam and the Elwha River dams in Washington State. These removals and the associated studies provide for the first time an opportunity to evaluate the immediate and persistent consequences of these significant fluvial—and in some cases, coastal—perturbations. Understanding dam removal response not only improves understanding of landscape and ecosystem adjustment to profound sediment pulses but also provides important lessons for future watershed restoration efforts.

  6. Geotechnical practice in dam rehabilitation

    SciTech Connect

    Anderson, L.R.

    1993-01-01

    This proceedings, Geotechnical Practice in Dam Rehabilitation, consists of papers presented at the Specialty Conference sponsored by the Geotechnical Engineering Division of the American Society of Civil Engineers held in Raleigh, North Carolina, April 25-28, 1993. The conference provided a forum for the discussion of the rehabilitation of dams, including case histories and current geotechnical practice. The topics covered by this proceeding include: (1) inspection and monitoring of dams; (2) investigation and evaluation of dams and foundations; (3) risk and reliability assessment; (4) increasing reservoir capacity, spillway modifications and overtopping; (5) seepage control; (6) improving stability of dams, foundations and reservoir slopes; (7) rehabilitation for seismic stability; and (8) geosynthetics and ground improvement techniques.

  7. 78 FR 62616 - Salmon Creek Hydroelectric Company, Salmon Creek Hydroelectric Company, LLC; Notice of Transfer...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-22

    ... Energy Regulatory Commission Salmon Creek Hydroelectric Company, Salmon Creek Hydroelectric Company, LLC; Notice of Transfer of Exemption 1. By letter filed September 23, 2013, Salmon Creek Hydroelectric Company informed the Commission that they have changed its name to Salmon Creek Hydroelectric Company, LLC for...

  8. 33 CFR 117.331 - Snake Creek.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... OPERATION REGULATIONS Specific Requirements Florida § 117.331 Snake Creek. The draw of the Snake Creek bridge, at Islamorada, Florida, shall open on signal, except that from 8 a.m. to 4 p.m., the draw need...

  9. Salmon Supplementation Studies in Idaho Rivers; Field Activities Conducted on Clear and Pete King Creeks, 2001 Annual Report.

    SciTech Connect

    Gass, Carrie; Olson, Jim M.

    2004-11-01

    In 2001 the Idaho Fisheries Resource Office continued as a cooperator on the Salmon Supplementation Studies in Idaho Rivers (ISS) project on Pete King and Clear creeks. Data relating to supplementation treatment releases, juvenile sampling, juvenile PIT tagging, brood stock spawning and rearing, spawning ground surveys, and snorkel surveys were used to evaluate project data points and augment past data. Due to low adult spring Chinook returns to Kooskia National Fish Hatchery (KNFH) in brood year 1999 there was no smolt supplementation treatment release into Clear Creek in 2001. A 17,014 spring Chinook parr supplementation treatment (containing 1000 PIT tags) was released into Pete King Creek on July 24, 2001. On Clear Creek, there were 412 naturally produced spring Chinook parr PIT tagged and released. Using juvenile collection methods, Idaho Fisheries Resource Office staff PIT tagged and released 320 naturally produced spring Chinook pre-smolts on Clear Creek, and 16 natural pre-smolts on Pete King Creek, for minimum survival estimates to Lower Granite Dam. There were no PIT tag detections of brood year 1999 smolts from Clear or Pete King creeks. A total of 2261 adult spring Chinook were collected at KNFH. Forty-three females were used for supplementation brood stock, and 45 supplementation (ventral fin-clip), and 45 natural (unmarked) adults were released upstream of KNFH to spawn naturally. Spatial and temporal distribution of 37 adults released above the KNFH weir was determined through the use of radio telemetry. On Clear Creek, a total of 166 redds (8.2 redds/km) were observed and data was collected from 195 carcasses. Seventeen completed redds (2.1 redds/km) were found, and data was collected data from six carcasses on Pete King Creek.

  10. Asotin Creek Model Watershed Plan

    SciTech Connect

    Browne, D.; Holzmiller, J.; Koch, F.; Polumsky, S.; Schlee, D.; Thiessen, G.; Johnson, C.

    1995-04-01

    The Asotin Creek Model Watershed Plan is the first to be developed in Washington State which is specifically concerned with habitat protection and restoration for salmon and trout. The plan is consistent with the habitat element of the ``Strategy for Salmon``. Asotin Creek is similar in many ways to other salmon-bearing streams in the Snake River system. Its watershed has been significantly impacted by human activities and catastrophic natural events, such as floods and droughts. It supports only remnant salmon and trout populations compared to earlier years. It will require protection and restoration of its fish habitat and riparian corridor in order to increase its salmonid productivity. The watershed coordinator for the Asotin County Conservation District led a locally based process that combined local concerns and knowledge with technology from several agencies to produce the Asotin Creek Model Watershed Plan.

  11. The distribution of ichthyoplankton in thermal and non-thermal creeks and swamps on the Savannah River Plant, February-July 1985

    SciTech Connect

    Paller, M.H.; Saul, B.M.; Hughes, D.W.

    1986-01-01

    The report deals with the distribution of ichthyoplankton in the Savannah River tributary streams and associated swamps located on the SRP during the 1985 spawning season (February-July). The 1985 sampling program was a continuation of the 1984 program and, except for the addition of seven sampling stations and minor methodological changes, incorporated the same sampling sites and procedures. The streams under study were Upper Three Runs Creek, Beaver Dam Creek, Four Mile Creek, Pen Branch, Steel Creek, Meyer's Branch and Lower Three Runs Creek. The objectives were to determine: (1) the density, distribution and species composition of ichthyoplankton at sample sites in the creeks and swamps of the SRP; (2) how ichthyoplankton in SRP creeks and swamps is distributed in relation to habitat and temperature; (3) the effects of elevated temperatures on ichthyoplankton distribution and abundance and on the time of spawning; and (4) the magnitude of yearly variations in ichthyoplankton abundance in the creeks and swamps of the SRP and the reasons for these variations.

  12. The Blue Bottle Revisited.

    ERIC Educational Resources Information Center

    Vandaveer, Walter R., IV; Mosher, Mel

    1997-01-01

    Presents a modification of the classic Blue Bottle demonstration that involves the alkaline glucose reduction of methylene blue. Uses other indicators in the classic Blue Bottle to produce a rainbow of colors. (JRH)

  13. The Blue Bottle Revisited.

    ERIC Educational Resources Information Center

    Vandaveer, Walter R., IV; Mosher, Mel

    1997-01-01

    Presents a modification of the classic Blue Bottle demonstration that involves the alkaline glucose reduction of methylene blue. Uses other indicators in the classic Blue Bottle to produce a rainbow of colors. (JRH)

  14. 27 CFR 9.85 - Willow Creek.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Willow Creek. 9.85 Section... THE TREASURY ALCOHOL AMERICAN VITICULTURAL AREAS Approved American Viticultural Areas § 9.85 Willow Creek. (a) Name. The name of the viticultural area described in this section is “Willow Creek.”...

  15. 27 CFR 9.85 - Willow Creek.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2013-04-01 2013-04-01 false Willow Creek. 9.85 Section... THE TREASURY ALCOHOL AMERICAN VITICULTURAL AREAS Approved American Viticultural Areas § 9.85 Willow Creek. (a) Name. The name of the viticultural area described in this section is “Willow Creek.”...

  16. 27 CFR 9.85 - Willow Creek.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Willow Creek. 9.85 Section... THE TREASURY LIQUORS AMERICAN VITICULTURAL AREAS Approved American Viticultural Areas § 9.85 Willow Creek. (a) Name. The name of the viticultural area described in this section is “Willow Creek.”...

  17. 27 CFR 9.85 - Willow Creek.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Willow Creek. 9.85 Section... THE TREASURY LIQUORS AMERICAN VITICULTURAL AREAS Approved American Viticultural Areas § 9.85 Willow Creek. (a) Name. The name of the viticultural area described in this section is “Willow Creek.”...

  18. 27 CFR 9.85 - Willow Creek.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Willow Creek. 9.85 Section... THE TREASURY LIQUORS AMERICAN VITICULTURAL AREAS Approved American Viticultural Areas § 9.85 Willow Creek. (a) Name. The name of the viticultural area described in this section is “Willow Creek.”...

  19. 33 CFR 117.331 - Snake Creek.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Snake Creek. 117.331 Section 117.331 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements Florida § 117.331 Snake Creek. The draw of the Snake Creek...

  20. Hulburt Creek Hydrology, Southwestern Wisconsin

    USGS Publications Warehouse

    Gebert, Warren A.

    1971-01-01

    The purpose of this study was to determine the hydrologic characteristics of Hulburt Creek, Sauk County, Wis., in order to evaluate a proposed reservoir. The streamflow characteristics estimated are the low flow, monthly flow, and inflow flood. The study was done by the U.S. Geological Survey in cooperation with the Wisconsin Department of Natural Resources. The following estimates are for the point on Hulburt Creek at the proposed Dell Lake damsite near Wisconsin Dells. The drainage area is 11.2 square miles.

  1. Importance of Field Data for Numerical Modeling to Dam Removal on a Mountain Channel

    NASA Astrophysics Data System (ADS)

    Kuo, W. C.; Wang, H. W.

    2015-12-01

    In 2011, a 13-m high Chijiawan Dam on Chijiawan Creek was removed due to the safety concern due to aging structure and scoured dam foundation as well as habitat restoration of the endangered Formosan landlocked salmon. Similar to Chijiawan Dam, many dams in Taiwan are located in steep mountainous area with coarser sediment and high sediment yield, and may be removed in the near future. Since the capability of current sediment transport model is insufficient, a systematic planning of field survey and monitoring work can effectively help to decrease data uncertainty in simulation. In this study, we aimed to understand the minimum requirements of data for numerical model to predict channel responses after dam removal, according to the data of pre-project and long term post-project monitoring works from removal of Chijiawan dam. We collected the hourly discharge data of Taipower gaging station located 6.8 km from the dam from 2010 to 2012 and conducted surveys of grain size distributions, cross-sectional and longitudinal profiles. We applied Sedimentation and River Hydraulics (SRH) one-dimensional model to simulate bed elevation changes by different setting of data input, including bed sediment, roughness coefficient, cross-section spacing, and flow discharge. Then, we performed a sensitivity analysis by using Root Mean Square Error (RMSE) to evaluate the minimum requirements of data for predicting to dam removal. The RMSE variability of varied setting of bed sediment, roughness coefficient, cross-section spacing, and flow discharge ranged from 0.02 m, 0.17 m, 0.14 m and 0.09 m, respectively. The results highlight that the simulation is sensitive to roughness coefficient, cross-section spacing, and flow discharge, and less sensitive to bed sediment. We anticipate the results will help decision maker to understand the importance of field data in future removals.

  2. Influence of Partial Dam Removal on Change of Channel Morphology and Physical Habitats: A Case Study of Yu-Sheng River

    NASA Astrophysics Data System (ADS)

    Hao Weng, Chung; Yeh, Chao Hsien

    2017-04-01

    The rivers in Taiwan have the characteristic of large slope gradient and fast flow velocity caused by rugged terrain. And Taiwan often aces many typhoons which will bring large rainfall in the summer. In early Taiwan, river management was more focus on flood control, flood protection and disaster reduction. In recent years, the rise of ecological conservation awareness for the precious fish species brings spotlight on the Taiwan salmon (Oncorhynchus masou formosanus) which lives in the river section of this study. In order to make sure ecological corridor continuing, dam removal is the frequently discussed measure in recent years and its impact on environmental is also highly concerned. Since the dam removal may causes severe changes to the river channel, the action of dam removal needs careful evaluation. As one of the endangered species, Taiwan salmon is considered a national treasure of Taiwan and it was originally an offshore migration of the Pacific salmon. After the ice age and geographical isolation, it becomes as an unique subspecies of Taiwan and evolved into landlocked salmon. Now the Taiwan salmon habitats only exists in few upstream creeks and the total number of wild Taiwan salmon in 2015 was about 4,300. In order to expand the connectivity of the fish habitats in Chi-Jia-Wan creek basin, several dam removal projects had completed with good results. Therefore, this paper focuses on the dam removal of Yu-Sheng creek dam. In this paper, a digital elevation model (DEM) of about 1 kilometer channel of the Yu-Sheng creek dam is obtained by unmanned aerial vehicle (UAV). Using CCHE2D model, the simulation of dam removal will reveal the impact on channel morphology. After model parameter identification and verification, this study simulated the scenarios of three historical typhoon events with recurrence interval of two years, fifteen years, and three decades under four different patterns of dam removal to identify the the head erosion, flow pattern, and

  3. Three Gorges Dam, China

    NASA Image and Video Library

    2002-07-25

    This ASTER image shows a 60 km stretch of the Yangtze River in China, including the Xiling Gorge, the eastern of the three gorges. In the left part of the image is the construction site of the Three Gorges Dam, the world's largest. This image was acquired on July 20, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet. http://photojournal.jpl.nasa.gov/catalog/PIA03852

  4. 250 years of historic occupation on Steel Creek, Savannah River Plant, Barnwell County, South Carolina

    SciTech Connect

    Brooks, R.D.

    1988-01-01

    This report discusses the investigation of seven historic archaeological sites on the uppper coastal plain of the South Atlantic Slope in South Carolina. These seven sites are located on the United States Department of Energy's Savannah River Plant in the Steel Creek watershed. This project has its beginnings in 1980, when the Department of Energy initiated the reactivation of the L Reactor. At that time, the plan called for an increased thermal water discharage. In 1980, the Savannah River Plant Archaeological Research Program (SRP-ARP) conducted an intensive archaeological survey of the Steel Creek terrace edge and bottomland. In early 1984, the Department of Energy made the decision to construct a dam and create a cooling lake (L-Lake) on Steel Creek. This required a new survey. The new project initially was to be an intensive survey of the entire proposed lake area. However, construction time constraints changed the general outline of the project into a two-phased survey of the area. The first phase of the project was a survey of the dam, borrow area, discharge structure, and diversion canal. Ten sites were identified, none of which were considered eligible for nomination to the National Register of Historic Places. The second phase of the project was the intensive survey of the lake and embankment. Twenty-six sites were located in that portion of the survey, 11 of which were considered eligible for nomination to the National Register of Historic Places.

  5. Hydrological, socio-economic and reservoir alterations of Er Roseires Dam in Sudan.

    PubMed

    Alrajoula, Mohammad Taher; Al Zayed, Islam Sabry; Elagib, Nadir Ahmed; Hamdi, Moshrik R

    2016-10-01

    Er Roseires Dam plays a key role in controlling the Blue Nile flow in Sudan. This study explores the influence of the dam on the hydrological regimes, which in turn have implications for the ecosystem. The Range of Variability Approach (RVA) - based on a set of 32 indicators - was applied over the period 1965 to 2014 to establish a safe range of river flow. Moreover, remotely-sensed data of the Normalized Difference Vegetation Index (NDVI) was used to analyse the spatio-temporal variation of the dam's reservoir area over the period 2000-2014. Significant influence on the dry-season hydrological indicators is expressed by high negative hydrological alteration of the range from -47% to -100%, but the dam contributes positively through flow regulation during the flood season. Impounding water procedure and fluctuation of water flow caused by the dam are found to induce significant alterations. Releasing less water during the dry season and more gradual impounding process, which are not expected to affect the power generation or irrigation practices, are recommended for better ecological restoration. The total surface area of the reservoir has changed post the implementation of the dam heightening project. Since 2012, the lake surface area has expanded by 250%. Relationships between the lake size and the head have been developed to help in the monitoring of the hydrological conditions and, accordingly, in managing the dam operation. A field survey showed that the dam plays a positive social role as the reservoir supports local activities, such as fishery, farming, and collection of wood and fruits. But increased humidity and health problems have also been noted. The Grand Ethiopian Renaissance Dam (GERD) would have a direct effect on Er Roseires Dam and the river flow downstream. High level of coordination among the riparian countries is recommended for better river water management.

  6. 7 CFR 1724.55 - Dam safety.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 11 2013-01-01 2013-01-01 false Dam safety. 1724.55 Section 1724.55 Agriculture... § 1724.55 Dam safety. (a) The provisions of this section apply only to RUS financed electric system... for Dam Safety,”(Guidelines), as applicable. A dam, as more fully defined in the Guidelines,...

  7. 7 CFR 1724.55 - Dam safety.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 11 2014-01-01 2014-01-01 false Dam safety. 1724.55 Section 1724.55 Agriculture... § 1724.55 Dam safety. (a) The provisions of this section apply only to RUS financed electric system... for Dam Safety,”(Guidelines), as applicable. A dam, as more fully defined in the Guidelines,...

  8. 7 CFR 1724.55 - Dam safety.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 11 2012-01-01 2012-01-01 false Dam safety. 1724.55 Section 1724.55 Agriculture... § 1724.55 Dam safety. (a) The provisions of this section apply only to RUS financed electric system... for Dam Safety,”(Guidelines), as applicable. A dam, as more fully defined in the Guidelines,...

  9. 7 CFR 1724.55 - Dam safety.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 11 2011-01-01 2011-01-01 false Dam safety. 1724.55 Section 1724.55 Agriculture... § 1724.55 Dam safety. (a) The provisions of this section apply only to RUS financed electric system... for Dam Safety,”(Guidelines), as applicable. A dam, as more fully defined in the Guidelines,...

  10. Changes in the freshwater mussel (Bivalvia: Unionidae) fauna of the Bear Creek system of Northwest Alabama and Northeast Mississippi

    USGS Publications Warehouse

    McGregor, S.W.; Garner, J.T.

    2003-01-01

    Drastic reductions in diversity and abundance of mussel populations are documented in many systems. Bear Creek, located in northwest Alabama and northeast Mississippi, has seen changes to its fauna, possibly the result of impoundment, channelization, wastewater discharge, and sedimentation from such sources such as strip mining, agriculture, and silviculture. The most obvious influences have been impoundment of the lowermost 32 km of Bear Creek by Pickwick Reservoir of Tennessee River, the construction of four dams within the system, construction of a 29-km-long channel designed to limit flooding, and bank destabilization. Mussels are absent from much of the system and faunal composition has apparently been altered where mussels persist, based on comparison to limited previous studies. The most notable changes are the loss of Cumberlandian species diversity and the apparent increase in Ohioan species diversity. We sampled 40 stations in the Bear Creek system and report 32 mussel species live or fresh dead, including 3 Cumberlandian species, and 2 others weathered dead. Fourteen of these species were not reported in two earlier studies. During this study the most depauperate populations were upstream of Bear Creek km 41.0 and in tributaries. No mussels were collected immediately downstream of dams, and diversity gradually increased downstream from the lowermost main channel dam until 28 species occurred together in a free-flowing reach shortly before entering Pickwick Reservoir. One weathered dead zebra mussel, Dreisenna polymorpha, was also collected, representing a new tributary record. The population of Epioblasma brevidens in Bear Creek is the only population of that species known in the lower Tennessee River system, and the population of Lexingtonia dolabelloides, another new tributary record, is one of only two populations of that species known downstream of Paint Rock River.

  11. Is it worth a dam?

    PubMed Central

    Joyce, S

    1997-01-01

    Once a sign of modernization and growth, dams are often seen today as symbols of environmental and social devastation. Over 800,000 dams have been built worldwide to provide drinking water, flood control, hydropower, irrigation, navigation, and water storage. Dams do indeed provide these things,but at the cost of several adverse, unexpected effects: disruption of ecosystems, decline of fish stocks, forced human and animal resettlements, and diseases such as malaria, which are borne by vectors that thrive in quiet waters. PMID:9349830

  12. The Caspar Creek Experimental Watershed

    Treesearch

    T. E. Lisle

    1979-01-01

    The Caspar Creek Experimental Watershed was set up as a traditional paired watershed to investigate the effects of logging and road construction on erosion and sedimentation. Research participants have come from the California Division of Forestry, the Pacific Southwest Forest and Range Experiment Station, the California Department of Water Resources, the California...

  13. Caspar Creek study completion report

    Treesearch

    C. S. Kabel; E. R. German

    1967-01-01

    The Department of Fish and Game assisted in an interagency study on Caspar Creek, a small coastal stream in Mendocino County. This study included the effects of logging on the stream and its population of silver salmon (Oncorhynchus kisutch) and steelhead trout (Salmo gairdnerii).

  14. LINCOLN CREEK ROADLESS AREA, NEVADA.

    USGS Publications Warehouse

    John, David A.; Stebbins, Scott A.

    1984-01-01

    On the basis of a mineral survey, the Lincoln Creek Roadless Area, Nevada was determined to have little likelihood for the occurrence of mineral resources. Geologic terrane favorable for the occurrence of contact-metasomatic tungsten deposits exists, but no evidence for this type of mineralization was identified. The geologic setting precludes the occurrence of fossil fuels and no other energy resources were identified.

  15. Parachute Creek Shale Oil Program

    SciTech Connect

    Not Available

    1981-01-01

    This pamphlet describes Union Oil's shale oil project in the Parachute Creek area of Garfield County, Colorado. The oil shale is estimated to contain 1.6 billion barrels of recoverable oil in the high Mahogany zone alone. Primarily a public relations publication, the report presented contains general information on the history of the project and Union Oil's future plans. (JMT)

  16. Historical Channel Changes in Cache Creek, Capay Valley, California

    NASA Astrophysics Data System (ADS)

    Higgins, S. A.; Kamman, G. R.

    2009-12-01

    Historical channel changes were assessed for the 21-mile segment of Cache Creek through Capay Valley in order to evaluate temporal changes in stream channel morphology. The Capay Valley segment of Cache Creek is primarily a low-gradient channel with a gravel/cobble substrate. Hydrologic conditions have been affected by dam operations that store runoff during the wet season and deliver water during the dry season for downstream irrigation uses. Widespread distribution of invasive plant species has altered the condition of the riparian corridor. The assessment evaluated a hypothesis that historical changes in hydrology and vegetation cover have triggered changes in geomorphic conditions. Historic channel alignments were digitized to assess planform channel adjustments. Results illustrate a dynamic system with frequent channel movements throughout the historic period. Evaluation of longitudinal channel adjustments revealed a relatively stable bed surface elevation since the 1930’s. Comparisons of cross-sectional channel geometry for topographic profiles surveyed in 1984 were compared to equivalent features in a LiDAR survey from 2008. The comparisons show a relatively consistent channel geometry that has maintained a similar form despite rather large planform adjustments with areas of bank retreat in excess of 500 feet. Results suggest that the study reach has maintained a relatively stable morphology through a series of dynamic planform adjustments during the historic period.

  17. Asotin Creek Model Watershed Plan: Asotin County, Washington, 1995.

    SciTech Connect

    Browne, Dave

    1995-04-01

    The Northwest Power Planning Council completed its ``Strategy for Salmon'' in 1992. This is a plan, composed of four specific elements,designed to double the present production of 2.5 million salmon in the Columbia River watershed. These elements have been called the ``four H's'': (1) improve harvest management; (2) improve hatcheries and their production practices; (3) improve survival at hydroelectric dams; and (4) improve and protect fish habitat. The Asotin Creek Model Watershed Plan is the first to be developed in Washington State which is specifically concerned with habitat protection and restoration for salmon and trout. The plan is consistent with the habitat element of the ``Strategy for Salmon''. Asotin Creek is similar in many ways to other salmon-bearing streams in the Snake River system. Its watershed has been significantly impacted by human activities and catastrophic natural events, such as floods and droughts. It supports only remnant salmon and trout populations compared to earlier years. It will require protection and restoration of its fish habitat and riparian corridor in order to increase its salmonid productivity.

  18. FORMATION AND FAILURE OF NATURAL DAMS.

    USGS Publications Warehouse

    Costa, John E.; Schuster, Robert L.

    1988-01-01

    Of the numerous kinds of dams that form by natural processes, dams formed from landslides, glacial ice, and late-neoglacial moraines present the greatest threat to people and property. Landslide dams form a wide range of physiographic settings. The most common types of mass movements that form landslide dams are rock and debris avalanches; rock and soil slumps and slides; and mud, debris, and earth flows. The most common initiation mechanisms for dam-forming landslides are excessive rainfall and snowmelt and earthquakes. Natural dams may cause upstream flooding as the lake rises and downstream flooding as a result of failure of the dam. Although data are few, for the same potential energy at the dam site, downstream flood peaks from the failure of glacier-ice dams are smaller than those from landslide, moraine, and constructed earth-fill and rock-fill dam failures.

  19. Ethiopia's Grand Renaissance Dam: Implications for Downstream Riparian Countries

    NASA Astrophysics Data System (ADS)

    Zhang, Y.; Block, P. J.; Hammond, M.; King, A.

    2013-12-01

    Ethiopia has begun seriously developing their significant hydropower potential by launching construction of the Grand Ethiopian Renaissance Dam (GERD) on the Blue Nile River to facilitate local and regional growth. Although this has required substantial planning on Ethiopia's part, no policy dictating the reservoir filling rate strategy has been publicly issued. This filling stage will have clear implications on downstream flows in Sudan and Egypt, complicated by evaporative losses, climate variability, and climate change. In this study, various filling policies and future climate states are simultaneously explored to infer potential streamflow reductions at Lake Nasser, providing regional decision-makers with a set of plausible, justifiable, and comparable outcomes. Schematic of the model framework Box plots of 2017-2032 percent change in annual average streamflow at Lake Nasser for each filling policy constructed from the 100 time-series and weighted precipitation changes. All values are relative to the no dam policy and no changes to future precipitation.

  20. White Oak Creek Embayment site characterization and contaminant screening analysis

    SciTech Connect

    Blaylock, B.G.; Ford, C.J.; Frank, M.L.; Hoffman, F.O.; Hook, L.A.

    1993-01-01

    Analyses of sediment samples collected near the mouth of White Oak Creek during the summer of 1990 revealed [sup 137]Cs concentrations [> 10[sup 6] Bq/kg dry wt (> 10[sup 4] pCi/g dry wt)] near the sediment surface. Available evidence indicates that these relatively high concentrations of [sup 137]Cs now at the sediment surface were released from White Oak Dam in the mid-1950s and had accumulated at depositionalsites in the embayment. These accumulated sediments are being eroded and transported downstream primarily during winter low-water levels by flood events and by a combination of normal downstream flow and the water turbulence created by the release of water from Melton Hill Dam during hydropower generation cycles. This report provides a more thorough characterization of the extent of contamination in WOCE than was previously available. Environmental samples collected from WOCE were analyzed for organic, inorganic, and radiological contaminants in fish, water, and sediment. These results were used to conduct a human health effects screening analysis. Walkover radiation surveys conducted inside the fenced area surrounding the WOCE at summer-pool (741 ft MSL) and at winter-pool (733 ft MSL) level, indicated a maximum exposure rate of 3 mR h[sup 1] 1 m above the soil surface.

  1. The Debris Flow of September 20, 2014, in Mud Creek, Mount Shasta Volcano, Northern California

    NASA Astrophysics Data System (ADS)

    De La Fuente, J. A.; Bachmann, S.; Courtney, A.; Meyers, N.; Mikulovsky, R.; Rust, B.; Coots, F.; Veich, D.

    2015-12-01

    The debris flow in Mud Creek on September 20, 2014 occurred during a warm spell at the end of an unusually long and hot summer. No precipitation was recorded during or immediately before the event, and it appears to have resulted from rapid glacial melt. It initiated on the toe of the Konwakiton Glacier, and immediately below it. The flow track was small in the upper parts (40 feet wide), but between 8,000 and 10,000 feet in elevation, it entrained a large volume of debris from the walls and bed of the deeply incised gorge and transported it down to the apex of the Mud Creek alluvial fan (4,800'). At that point, it overflowed the channel and deposited debris on top of older (1924) debris flow deposits, and the debris plugged a road culvert 24 feet wide and 12 feet high. A small fraction of the flow was diverted to a pre-existing overflow channel which parallels Mud Creek, about 1,000 feet to the west. The main debris flow traveled down Mud Creek, confined to the pre-existing channel, but locally got to within a foot or so of overflowing the banks. At elevation 3920', video was taken during the event by a private citizen and placed on YouTube. The video revealed that the flow matrix consisted of a slurry of water/clay/silt/sand/gravel, transporting boulders 1-6 feet in diameter along with the flow. Cobble-sized rock appears to be absent. Sieve analysis of the debris flow matrix material revealed a fining of particles in a downstream direction, as expected. The thickness of deposits on the fan generally decreased in a downstream direction. Deposits were 5-6 feet deep above the Mud Creek dam, which is at 4,800' elevation, and 4-5 feet deep at the dam itself. Further downstream, thicknesses decreased as follows: 3920'aqueduct crossing, 3-4 feet; 3620' Pilgrim Creek Road crossing, 2-3 feet; 3,520', 1-2 feet; 3,440' abandoned railroad grade, 1 foot. This event damaged roads, and future events could threaten life and property. There is a need to better understand local

  2. Concrete gravity dam stability analysis

    SciTech Connect

    Morris, D.

    1992-09-01

    Under Federal Energy Regulatory Commission (FERC) guidelines, dam owners must evaluate the stability of their structures every five years. Because traditional approaches typically yield overly conservative stability estimates, EPRI sponsored the development of a computer code, CG-DAMS, to provide more-realistic assessments that reflect site-specific conditions. This finite-element code-which is available in mainframe, workstation, and personal computer versions-can be used to predict crack growth, shear, and stress under a variety of loads.

  3. Structural Stability Evaluation, Pokegama Dam.

    DTIC Science & Technology

    1980-09-01

    rock - filled timber crib construction; the original structure was essentially replaced in 1903 by a new timber and concrete structure. Construction after...1279.27. Pertinent dam data are given in Table 1. 5 Structure evolution 8. Reconstruction in 1903. Because the original structure was of timber and rock ...were the timber sluiceway floor aprons and the rock -filled timber cribs in the embankment at each end of the dam. The left and right cribs are 50 and

  4. The Effect of Landuse and Other External Factors on Water Quality Within two Creeks in Northern Kentucky

    NASA Astrophysics Data System (ADS)

    Boateng, S.

    2006-05-01

    The purpose of this study was to monitor the water quality in two creeks in Northern Kentucky. These are the Banklick Creek in Kenton County and the Woolper Creek in Boone County, Kentucky. The objective was to evaluate the effect of landuse and other external factors on surface water quality. Landuse within the Banklick watershed is industrial, forest and residential (urban) whereas that of Woolper Creek is agricultural and residential (rural). Two testing sites were selected along the Banklick Creek; one site was upstream the confluence with an overflow stream from an adjacent lake; the second site was downstream the confluence. Most of the drainage into the lake is over a near-by industrial park and the urban residential areas of the cities of Elsmere and Erlanger, Kentucky. Four sampling locations were selected within the Woolper Creek watershed to evaluate the effect of channelization and subsequent sedimentation on the health of the creek. Water quality parameters tested for include dissolved oxygen, phosphates, chlorophyll, total suspended sediments (TSS), pH, oxidation reduction potential (ORP), nitrates, and electrical conductivity. Sampling and testing were conducted weekly and also immediately after storm events that occurred before the regular sampling dates. Sampling and testing proceeded over a period of 29 weeks. Biological impact was determined, only in Woolper Creek watershed, by sampling benthic macroinvertebrates once every four weeks. The results showed significant differences in the water quality between the two sites within the Banklick Creek. The water quality may be affected by the stream overflow from the dammed lake. Also, channelization in the Woolper Creek seemed to have adverse effects on the water quality. A retention pond, constructed to prevent sediments from flowing into the Woolper Creek, did not seem to be effective. This is because the water quality downstream of the retention pond was significantly worse than that of the

  5. "U.S. Reclamation Service, Grand River Dam, topographical map of dam ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    "U.S. Reclamation Service, Grand River Dam, topographical map of dam site and construction plant. September 15, 1914." - Grand Valley Diversion Dam, Half a mile north of intersection of I-70 & Colorado State Route 65, Cameo, Mesa County, CO

  6. Water quality of Nippersink Creek and Wonder Lake, McHenry County, Illinois, 1994-2001

    USGS Publications Warehouse

    Dupre, David H.; Robertson, Dale M.

    2004-01-01

    Wonder Lake, McHenry County, Illinois was formed when an earthen dam was constructed across Nippersink Creek in 1929. The U.S. Geological Survey (USGS), in cooperation with the McHenry County Soil and Water Conservation District, operated two streamflow and water-quality monitoring sites (upstream and downstream of Wonder Lake) from July 1994 through June 1997, and examined the water quality of the lake during 1999-2000. From 1999 through 2001, the USGS National Water-Quality Assessment Program operated the same upstream monitoring station to assess the streamflow, sediments, nutrients, and other chemical and physical characteristics of Nippersink Creek. Interpolation and regression methods were used to compute loads of sediment and nutrients delivered to Wonder Lake through Nippersink Creek by the combination of data sets collected as part of these studies. Since the formation of Wonder Lake, sediment and nutrient loading from Nippersink Creek has caused lake water-quality degradation. Wonder Lake effectively trapped 75 percent of the 15,900 tons of suspended sediment delivered during 1994-97. The average daily sediment load delivered during 1994-2001 was 25 tons. High sediment loading from the watershed reduces water clarity and hinders lake navigation. Nutrient loading from Nippersink Creek results in eutrophic conditions within Wonder Lake as evaluated on a Trophic State Index. The load of total phosphorus trapped in Wonder Lake is from 6 to 28 percent of the delivered load from Nippersink Creek. If the lake could be restored to its original capacity, the sediment trapping efficiency may be increased.

  7. 76 FR 5147 - Blue Heron Hydro LLC; Notice of Application Accepted for Filing and Soliciting Motions To...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-28

    ... Energy Regulatory Commission Blue Heron Hydro LLC; Notice of Application Accepted for Filing and... Heron Hydro LLC. e. Name of Project: Ball Mountain Dam Hydroelectric Project. f. Location: U.S. Army..., Blue Heron Hydro LLC, 113 Bartlett Road, Plainfield, Vermont 05667. (802) 454 1874. i. FERC Contact:...

  8. National Dam Safety Program. South River Number 3 Dam, (Inventory Number VA 01510), Potomac River Basin, Augusta County, Virginia. Phase I Inspection Report.

    DTIC Science & Technology

    1980-05-01

    Vesuvius Stream: Poor Creek Date of Inspection: 16 April 1980 South River #3 Dam is an earthfill structure about 665 feet long and 47 feet high. The...490a0 r a IV .0 U bel " -c" mt 0 f.. ow 0 44 o. w.1 C6 Ce1 N14 * o S 1. P0 .1 ..~ : 4 10 -4 A.i 4O 4 al Ai:1 4 r4 IV * Ai 0 Va to v4 C Ŕ c A m4*A

  9. Detecting changes in streamflow response to changes in non-climatic catchment conditions: farm dam development in the Murray?Darling basin, Australia

    NASA Astrophysics Data System (ADS)

    Schreider, S. Yu.; Jakeman, A. J.; Letcher, R. A.; Nathan, R. J.; Neal, B. P.; Beavis, S. G.

    2002-05-01

    Anecdotal evidence suggests that farm dams have an impact on the streamflow regime of a catchment. There is however a notable absence of suitable information on the nature and magnitude of these impacts. This work seeks to address this knowledge gap by identifying the nature of the impact of farm dams on the hydrology of catchments in the Murray-Darling Drainage Division, Australia. The 12 catchments selected for this analysis span zones of the Division with very different climatic and land use conditions. In 11 of the catchments considered there has been an increase in farm dam development over the last two to three decades. The remaining catchment, on the Jamieson River, has undergone no land use changes over the last 50 years and was selected as a control catchment for testing our approach. Statistically significant reductions in the quantity, potential streamflow response (PSR), were found for two catchments, the Yass River and Broadwater Creek. The average annual increase in farm dam capacity in these two catchments was 1.5 and 3.3% of mean annual flow, respectively. The remaining nine catchments displayed no statistically significant reductions in PSR for the entire period of simulation. Farm dam capacity information was available for five of the nine catchments. These five catchments displayed significantly smaller increases in farm dam capacity (not more than 0.3% of mean annual flow per year) than the Yass River and Broadwater Creek catchments.

  10. Bacteriological water quality of Tulpehocken Creek basin, Berks and Lebanon Counties, Pennsylvania

    USGS Publications Warehouse

    Barker, James L.

    1978-01-01

    A four month intensive study of the bacteriological quality of water in the Tulpehocken Creek basin indicates that (1) the streams locally contain high densities of bacteria indicative of fecal contamination, (2) nonpoint waste sources, particularly livestock, are the dominant influence in the excessive bacteriological-indicator counts observed, and (3) retention time of water in the proposed Blue Marsh Lake is believed sufficient to reduce bacteria densities to acceptable levels except following intense rainfall and runoff events during normally low flow periods.

  11. Elwha River Riparian Vegetation Response to Dams and Dam Removal

    NASA Astrophysics Data System (ADS)

    Shafroth, P. B.; Brown, R. L.; Clausen, A. J.; Chenoweth, J.

    2012-12-01

    Riparian vegetation is highly diverse and influences habitat of aquatic and terrestrial wildlife. Riparian vegetation dynamics are driven by stream flow regime, and fluxes of sediment and large woody debris, all of which can be altered by river damming. Dam removal is often implemented, in part, to help restore degraded riparian vegetation by reversing the alteration of these key drivers. However, increased disturbance and sediment flux associated with transport and exposure of trapped reservoir sediment can complicate a simple return to pre-dam conditions and can favor exotic species. We are studying the effects of dams and their removal on riparian vegetation along the Elwha River in Washington State, where removal of two large dams began in September 2011. To characterize vegetation composition, structure, and diversity prior to dam removal, we sampled 60-150 vegetation plots in 2004, 2005, and 2010 along five cross-valley transects in each of three river reaches: above both dams (upper reach), between the dams (middle reach), and downstream of both dams (lower reach). In summer 2012, we resampled a subset of our plots in the lower and middle reaches to evaluate vegetation and geomorphic change. We also sampled vegetation, topography, and grain size along newly-established transects within the exposed former reservoir behind Elwha Dam, which was removed in 2011 and 2012. Plant community distribution on bottomland geomorphic surfaces along the Elwha is typical of other systems in the region. We identified 8 overstory and 26 understory communities using multivariate analyses. Young bar surfaces (5-20 yrs) were dominated by willow, red alder, and black cottonwood. Floodplains and transitional fluvial terraces (<90yrs) were generally dominated by alder and cottonwood. Mature terraces (>90yrs) were often dominated by big-leaf maple. Douglas fir occurred on both young and old floodplains and terraces. Overstory species composition was more stable from 2005 to 2010

  12. A risk assessment study of water quality, biota, and legacy sediment prior to small dam removal in a tributary to the Delaware River.

    PubMed

    Rothenberger, Megan B; Hoyt, Virginia; Germanoski, Dru; Conlon, Maricate; Wilson, John; Hitchings, Joshua

    2017-07-01

    The proposed removal of three run-of-river dams (all ≤5-m height) in eastern Pennsylvania along lower Bushkill Creek, a tributary of the Delaware River, has provided a valuable opportunity for multidisciplinary research involving the collection of more than 5 years of pre-removal monitoring data, analysis of heavy metals in legacy sediment cores, and associated toxicity assays to determine the singular and interactive effects of lead, copper, and cadmium on survival and behavior of a common macroinvertebrate found in Bushkill Creek. Monitoring data were collected from sites approximately 35 m upstream and downstream of dams and reference sites located approximately 5 km upstream of all dams. Results indicate that oxygen levels, macroinvertebrate diversity, and proportion of sensitive taxa were significantly lower upstream and downstream of dams in comparison with upstream reference reaches. The strong correlation between water quality and macroinvertebrates in this system implies that removal of the lower three dams would lead to improvements in water quality, biotic integrity, and resilience in lower Bushkill Creek. Sediment analyses and toxicity assays suggest that dam removal and sediment mobilization may route contaminated sediments downstream at concentrations that may harm more sensitive biota. However, macroinvertebrate mortality and behavior were not significantly different from clean water controls for the large majority of toxicity assays. All together, these results suggest that dams 1-3 are good candidates for successful stream restoration but that the removals would best be planned in a way that mitigates potential impacts of contaminated legacy sediment.

  13. RICHLAND CREEK ROADLESS AREA, ARKANSAS.

    USGS Publications Warehouse

    Miller, Mary H.; Wood, Robert H.

    1984-01-01

    On the basis of geologic and mineral surveys, Richland Creek Roadless Area, Arkanses, has little promise for the occurrence of metallic mineral resources, gas and oil, or oil shale. The Boone Formation of Mississippian age and the Everton Formation of Ordovician age, both known to contain zinc and lead deposits in northern Arkansas, underlie the roadless area. The presence or absence of zinc and lead deposits in these formations in the subsurface can be neither confirmed nor ruled out without exploratory drilling. Most of the Richland Creek Roadless Area is under lease for oil and gas; however two wells drilled near the eastern boundary of the area did not show contained gas or oil.

  14. Otter Creek Wilderness, West Virginia

    SciTech Connect

    Warlow, R.C.; Behum, P.T.

    1984-01-01

    A mineral-resource survey of the Otter Creek Wilderness conducted in 1978 resulted in the determination of demonstrated coal resources estimated to total about 24 million short tons in beds more than 28 in. thick and an additional 62 million short tons of coal in beds between 14 and 28 in. thick. There is little promise for the occurrence of mineral or other energy resources in the area.

  15. LUSK CREEK ROADLESS AREA, ILLINOIS.

    USGS Publications Warehouse

    Klasner, John S.; Thompson, Robert M.

    1984-01-01

    Geologic mapping and geochemical sampling show that the eastern third of the Lusk Creek Roadless Area in Illinois has a substantiated resource potential for fluorspar, lead, zinc, and barite, and other parts of the area have a probable resource potential for fluorspar. Fluorspar, which occurs along fault zones in the eastern part of the area, has been produced in the adjacent Illinois-Kentucky fluorspar district. There is little promise for the occurrence of other mineral or energy resources.

  16. Damming the rivers of the Amazon basin.

    PubMed

    Latrubesse, Edgardo M; Arima, Eugenio Y; Dunne, Thomas; Park, Edward; Baker, Victor R; d'Horta, Fernando M; Wight, Charles; Wittmann, Florian; Zuanon, Jansen; Baker, Paul A; Ribas, Camila C; Norgaard, Richard B; Filizola, Naziano; Ansar, Atif; Flyvbjerg, Bent; Stevaux, Jose C

    2017-06-14

    More than a hundred hydropower dams have already been built in the Amazon basin and numerous proposals for further dam constructions are under consideration. The accumulated negative environmental effects of existing dams and proposed dams, if constructed, will trigger massive hydrophysical and biotic disturbances that will affect the Amazon basin's floodplains, estuary and sediment plume. We introduce a Dam Environmental Vulnerability Index to quantify the current and potential impacts of dams in the basin. The scale of foreseeable environmental degradation indicates the need for collective action among nations and states to avoid cumulative, far-reaching impacts. We suggest institutional innovations to assess and avoid the likely impoverishment of Amazon rivers.

  17. Damming the rivers of the Amazon basin

    NASA Astrophysics Data System (ADS)

    Latrubesse, Edgardo M.; Arima, Eugenio Y.; Dunne, Thomas; Park, Edward; Baker, Victor R.; D'Horta, Fernando M.; Wight, Charles; Wittmann, Florian; Zuanon, Jansen; Baker, Paul A.; Ribas, Camila C.; Norgaard, Richard B.; Filizola, Naziano; Ansar, Atif; Flyvbjerg, Bent; Stevaux, Jose C.

    2017-06-01

    More than a hundred hydropower dams have already been built in the Amazon basin and numerous proposals for further dam constructions are under consideration. The accumulated negative environmental effects of existing dams and proposed dams, if constructed, will trigger massive hydrophysical and biotic disturbances that will affect the Amazon basin’s floodplains, estuary and sediment plume. We introduce a Dam Environmental Vulnerability Index to quantify the current and potential impacts of dams in the basin. The scale of foreseeable environmental degradation indicates the need for collective action among nations and states to avoid cumulative, far-reaching impacts. We suggest institutional innovations to assess and avoid the likely impoverishment of Amazon rivers.

  18. Floods in Starkweather Creek basin, Madison, Wisconsin

    USGS Publications Warehouse

    Lawrence, Carl L.; Holmstrom, Barry K.

    1972-01-01

    The reaches evaluated are (1) Starkweather Creek and West Branch Starkweather Creek, for a distance of 6.0 river miles from the mouth at Lake Monona upstream to the U.S. Highway 51 crossing north of Truax Field; and (2) East Branch Starkweather Creek (2.8 river miles), from its confluence with the West Branch near Milwaukee Street upstream to a point near the Interstate Highway 90-94 crossing.

  19. Floods from tailings dam failures.

    PubMed

    Rico, M; Benito, G; Díez-Herrero, A

    2008-06-15

    This paper compiles the available information on historic tailings dam failures with the purpose to establish simple correlations between tailings ponds geometric parameters (e.g., dam height, tailings volume) and the hydraulic characteristics of floods resulting from released tailings. Following the collapse of a mining waste dam, only a part of tailings and polluted water stored at the dam is released, and this outflow volume is difficult to estimate prior the incident. In this study, tailings' volume stored at the time of failure was shown to have a good correlation (r2=0.86) with the tailings outflow volume, and the volume of spilled tailings was correlated with its run-out distance (r2=0.57). An envelope curve was drawn encompassing the majority of data points indicating the potential maximum downstream distance affected by a tailings' spill. The application of the described regression equations for prediction purposes needs to be treated with caution and with support of on-site measurement and observations. However, they may provide a universal baseline approximation on tailing outflow characteristics (even if detailed dam information is unavailable), which is of a great importance for risk analysis purposes.

  20. Personal computer accelerates dam analysis

    SciTech Connect

    Slopek, R.J. )

    1991-12-01

    Analyzing the stability of a dam can require several months of calculations - depending upon the number of dam cross sections and the variety of loadings that are studied. Monenco Consultants Limited, an engineering firm with its head office in Calgary, Alberta, has evaluated the safety of existing dams at more than 40 water resource developments in the last 20 years. Realizing the complexity of these evaluations, Monenco engineers were interested in developing techniques that would reduce the hours of professional time required for stability calculations, and therefore the cost to the dams owners. The firm eventually developed a microcomputer program for its engineers to use in the stability analysis of concrete gravity dams and two spread-sheets to use with the program for analyzing uplift and internal stresses. Using the computer programs cuts man-hours spent in analysis by about 75 percent and reduces the possibility of error in multiple calculations. Ultimately, the programs allow the engineer to spend more time in detailed analysis of a structure during a safety evaluation and less time performing tedious calculations.

  1. Applied geophysical techniques to evaluate earth dams and foundations

    NASA Astrophysics Data System (ADS)

    Llopis, Jose L.; Sharp, Michael K.; Butler, Dwain K.; Yule, Donald E.

    1995-05-01

    Mill Creek Dam, near Walla Walla, Washington has experienced anomalous seepage since its first filling in 1941. Various attempts to abate and control the seepage, including construction of a concrete wall, have not been completely successful. Construction of the cutoff wall reduced the seepage by about 30 percent, from 33 cubic feet per second to 22 cubic feet per second, and downstream saturated farmland was reduced by 56 percent. However, there are indications of increased seepage pressures in a conglomerate formation in the right abutment. A comprehensive, integrated geophysics investigation of the right abutment area of the dam was conducted to detect and map anomalous conditions and assist in the evaluation of remedial measures. The geophysics program consisted of microgravity, ground penetrating radar, seismic reflection, electromagnetic conductivity, and electrical resistivity surveying. Results of the program indicate anomalous conditions extending from the reservoir area through the right abutment. The aspects of the program planning leading to technique selection and field procedures are emphasized, as well as the role of different geophysical techniques in defining the nature of anomalous condition.

  2. 77 FR 56238 - Wolf Creek Nuclear Operating Corporation, Wolf Creek Generating Station; Application for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-12

    ... COMMISSION Wolf Creek Nuclear Operating Corporation, Wolf Creek Generating Station; Application for Amendment... Public Documents'' and then select ``Begin Web- based ADAMS Search.'' For problems with ADAMS, please... Commission (NRC or the Commission) has granted the request of Wolf Creek Nuclear Operating Corporation (the...

  3. OVERALL VIEW OF CASCADE CANAL COMPANY CRIB DAM, LOOKING UPSTREAM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    OVERALL VIEW OF CASCADE CANAL COMPANY CRIB DAM, LOOKING UPSTREAM FROM DIRECTION OF KACHESS DAM. VIEW TO NORTH - Kachess Dam, 1904 Cascade Canal Company Crib Dam, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

  4. Coop Creek Bridge with Checkerboard Mesa in background, historic photograph, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Co-op Creek Bridge with Checkerboard Mesa in background, historic photograph, no date, Zion National Park collection - Zion-Mount Carmel Highway, Co-op Creek Bridge, Spanning Co-op Creek, Springdale, Washington County, UT

  5. 3. Threequarter view of Oak Creek Bridge behind visitor center ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. Three-quarter view of Oak Creek Bridge behind visitor center facing southwest - Oak Creek Administrative Center, One half mile east of Zion-Mount Carmel Highway at Oak Creek, Springdale, Washington County, UT

  6. 1. Topographic view of the Rocky Creek Bridge and the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Topographic view of the Rocky Creek Bridge and the Oregon coast, view looking east - Rocky Creek Bridge, Spanning Rocky Creek on Oregon Coast Highway (U.S. Route 101), Depoe Bay, Lincoln County, OR

  7. Detail view of 850 plate girder span directly over creek, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Detail view of 85-0 plate girder span directly over creek, looking west. - New York, Chicago & St. Louis Railroad, Elk Creek Trestle, Spanning Elk Creek, south of Elk Park Road, Lake City, Erie County, PA

  8. Perspective view showing 850 plate girder span directly over creek, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Perspective view showing 85-0 plate girder span directly over creek, looking west. - New York, Chicago & St. Louis Railroad, Elk Creek Trestle, Spanning Elk Creek, south of Elk Park Road, Lake City, Erie County, PA

  9. 7. Cable Creek Bridge after completion. Zion National Park negative ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Cable Creek Bridge after completion. Zion National Park negative number 1485, classification series 002, 12. - Floor of the Valley Road, Cable Creek Bridge, Spanning Cable Creek on Floor of Valley, Springdale, Washington County, UT

  10. General perspective view of the Spring Creek Bridge, view looking ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    General perspective view of the Spring Creek Bridge, view looking northwest. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  11. Approach view of the Spring Creek Bridge, view looking south. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Approach view of the Spring Creek Bridge, view looking south. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  12. Topographic view of the Spring Creek Bridge and Collier State ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Topographic view of the Spring Creek Bridge and Collier State Park, view looking east. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  13. Approach view of the Spring Creek Bridge, view looking north. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Approach view of the Spring Creek Bridge, view looking north. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  14. General perspective view of the Spring Creek Bridge, view looking ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    General perspective view of the Spring Creek Bridge, view looking southeast. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  15. Elevation view of the Spring Creek Bridge, view looking east. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Elevation view of the Spring Creek Bridge, view looking east. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  16. General perspective view of the Spring Creek Bridge, view looking ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    General perspective view of the Spring Creek Bridge, view looking east. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  17. 2. Big Creek Road, worm fence and road at trailhead. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Big Creek Road, worm fence and road at trailhead. - Great Smoky Mountains National Park Roads & Bridges, Big Creek Road, Between State Route 284 & Big Creek Campground, Gatlinburg, Sevier County, TN

  18. 2. GENERAL VIEW SHOWING SIMPSON CREEK BRIDGE WITH BRIDGEPORT LAMP ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. GENERAL VIEW SHOWING SIMPSON CREEK BRIDGE WITH BRIDGEPORT LAMP AND CHIMNEY COMPANY IN BACKGROUND. - Bridgeport Lamp Chimney Company, Simpson Creek Bridge, Spanning Simpson Creek, State Route 58 vicinity, Bridgeport, Harrison County, WV

  19. 2. View of Clear Creek Bridge railing and understructure, looking ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. View of Clear Creek Bridge railing and under-structure, looking northwest. - Zion-Mount Carmel Highway, 62-foot Concrete Arch Pine Creek Bridge, Spanning Clear Creek, Springdale, Washington County, UT

  20. 121. Credit JE. Galpin Creek ditch, a feeder leading water ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    121. Credit JE. Galpin Creek ditch, a feeder leading water to the Keswick ditch, supplying Volta powerhouse. (JE, v. 12 1902 p. 235). - Battle Creek Hydroelectric System, Battle Creek & Tributaries, Red Bluff, Tehama County, CA

  1. 6. General perspective view of Neawanna Creek Bridge, showing bushhammered, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. General perspective view of Neawanna Creek Bridge, showing bush-hammered, recessed panels in fascia wall - Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U.S. 101 (Oregon Coast Highway), Seaside, Clatsop County, OR

  2. 5. General perspective view of Neawanna Creek Bridge, showing articulated ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. General perspective view of Neawanna Creek Bridge, showing articulated fascia walls - Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U.S. 101 (Oregon Coast Highway), Seaside, Clatsop County, OR

  3. 8. DETAIL VIEW OF DATEPLATE WHICH READS 'HARP CREEK, LUTEN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. DETAIL VIEW OF DATEPLATE WHICH READS 'HARP CREEK, LUTEN BRIDGE CO., CONTRACTOR, ARKANSAS STATE HIGHWAY DEPARTMENT, 1928' - Harp Creek Bridge, Spans Harp Creek at State Highway 7, Harrison, Boone County, AR

  4. 2. Deep Creek Road, old bridge at campground entrance. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Deep Creek Road, old bridge at campground entrance. - Great Smoky Mountains National Park Roads & Bridges, Deep Creek Road, Between Park Boundary near Bryson City & Deep Creek Campground, Gatlinburg, Sevier County, TN

  5. 5. Big Creek Road, old bridge on Walnut Bottom Road, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. Big Creek Road, old bridge on Walnut Bottom Road, deck view. - Great Smoky Mountains National Park Roads & Bridges, Big Creek Road, Between State Route 284 & Big Creek Campground, Gatlinburg, Sevier County, TN

  6. 4. Big Creek Road, old bridge on Walnut Bottom Road, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Big Creek Road, old bridge on Walnut Bottom Road, elevation view. - Great Smoky Mountains National Park Roads & Bridges, Big Creek Road, Between State Route 284 & Big Creek Campground, Gatlinburg, Sevier County, TN

  7. 1. Deep Creek Road, picnic pavilion Great Smoky Mountains ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Deep Creek Road, picnic pavilion - Great Smoky Mountains National Park Roads & Bridges, Deep Creek Road, Between Park Boundary near Bryson City & Deep Creek Campground, Gatlinburg, Sevier County, TN

  8. 59. Credit FM. Flood waters on South Battle Creek next ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    59. Credit FM. Flood waters on South Battle Creek next to powerhouse. Note height of water in relation to tailraces. - Battle Creek Hydroelectric System, Battle Creek & Tributaries, Red Bluff, Tehama County, CA

  9. 2. 1994 AERIAL PERSPECTIVE OF BISHOP CREEK WITH OWENS VALLEY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. 1994 AERIAL PERSPECTIVE OF BISHOP CREEK WITH OWENS VALLEY AND WHITE MOUNTAINS IN BACKGROUND, SOUTH LAKE IN FOREGROUND. VIEW TO NORTHEAST - Bishop Creek Hydroelectric System, Bishop Creek, Bishop, Inyo County, CA

  10. Methylene blue test

    MedlinePlus

    ... determine the type or to treat methemoglobinemia , a blood disorder. ... Methemoglobinemia - methylene blue test ... Normally, methylene blue quickly lowers the level of ... Some labs use different measurements or test different samples. ...

  11. The Blue Water

    ERIC Educational Resources Information Center

    Berger, J. Joel

    1973-01-01

    Describes some of the advantages of an elementary science activity in which students discover that blowing through a straw into a bromthymol blue solution changes the color to yellow. Directions are provided for preparing the bromthymol blue solution. (JR)

  12. Juvenile salmonid monitoring in the White Salmon River, Washington, post-Condit Dam removal, 2016

    USGS Publications Warehouse

    Jezorek, Ian G.; Hardiman, Jill M.

    2017-06-23

    Condit Dam, at river kilometer 5.3 on the White Salmon River, Washington, was breached in 2011 and removed completely in 2012, allowing anadromous salmonids access to habitat that had been blocked for nearly 100 years. A multi-agency workgroup concluded that the preferred salmonid restoration alternative was natural recolonization with monitoring to assess efficacy, followed by a management evaluation 5 years after dam removal. Limited monitoring of salmon and steelhead spawning has occurred since 2011, but no monitoring of juveniles occurred until 2016. During 2016, we operated a rotary screw trap at river kilometer 2.3 (3 kilometers downstream of the former dam site) from late March through May and used backpack electrofishing during summer to assess juvenile salmonid distribution and abundance. The screw trap captured primarily steelhead (Oncorhynchus mykiss; smolts, parr, and fry) and coho salmon (O. kisutch; smolts and fry). We estimated the number of steelhead smolts at 3,851 (standard error = 1,454) and coho smolts at 1,093 (standard error = 412). In this document, we refer to O. mykiss caught at the screw trap as steelhead because they were actively migrating, but because we did not know migratory status of O. mykiss caught in electrofishing surveys, we simply refer to them as O. mykiss or steelhead/rainbow trout. Steelhead and coho smolts tagged with passive integrated transponder tags were subsequently detected downstream at Bonneville Dam on the Columbia River. Few Chinook salmon (O. tshawytscha) fry were captured, possibly as a result of trap location or effects of a December 2015 flood. Sampling in Mill, Buck, and Rattlesnake Creeks (all upstream of the former dam site) showed that juvenile coho were present in Mill and Buck Creeks, suggesting spawning had occurred there. We compared O. mykiss abundance data in sites on Buck and Rattlesnake Creeks to pre-dam removal data. During 2016, age-0 O. mykiss were more abundant in Buck Creek than in 2009 or

  13. Riparian Planting Projects Completed within Asotin Creek Watershed : 2000-2002 Asotin Creek Riparian Final Report of Accomplishments.

    SciTech Connect

    Johnson, B. J.

    2002-01-01

    The Asotin County Conservation District (ACCD) is the primary entity coordinating habitat projects on both private and public lands within the Asotin Creek watershed. The watershed covers approximately 325 square miles in the Blue Mountains of southeastern Washington in Water Resource Inventory Area (WRIA) 35. According to Washington Department of Fish and Wildlife's (WDFW) Priority WRIA's by ''At-Risk Stock Significance Map'', it is the highest priority WRIA in southeastern Washington. Summer steelhead, bull trout, and Snake River spring chinook salmon which are listed under the Endangered Species Act (ESA), are present in the watershed. WDFW manages it as a Wild Steelhead Reserve; no hatchery fish have been released here since 1997. The ACCD has been working with landowners, Bonneville Power Administration (BPA), Washington State Conservation Commission (WCC), Natural Resource Conservation Service (NRCS), Washington Department of Fish and Wildlife (WDFW), U.S. Forest Service, Pomeroy Ranger District (USFS), Nez Perce Tribe, Washington Department of Ecology (DOE), National Marine Fisheries Service (NMFS), and U.S. Fish and Wildlife Service (USFWS) to address habitat projects in Asotin County. Local students, volunteers and Salmon Corps members from the Nez Perce Tribe have been instrumental in the success of the Model Watershed Program on Asotin Creek. ACCD began coordinating habitat projects in 1995 with the help of BPA funding. Approximately two hundred and seventy-six projects have been implemented as of 1999. The Washington State Legislature was successful in securing funding for threatened and endangered salmon and steelhead recovery throughout the State in 1998. While these issues were new to most of the State, the ACCD has been securing and administering funding for threatened salmonids since 1994. The Asotin Creek Riparian Planting 2000-053-00 and Asotin Creek Riparian Fencing 2000-054-00 teamed BPA and the Governor's Salmon Recovery Funding to plant

  14. Three Gorges Dam, China

    NASA Technical Reports Server (NTRS)

    2002-01-01

    This ASTER image shows a 60 km stretch of the Yangtze River in China, including the Xiling Gorge, the eastern of the three gorges. In the left part of the image is the construction site of the Three Gorges Dam, the world's largest.

    This image was acquired on July 20, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet.

    ASTER is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASA's Jet Propulsion Laboratory, Pasadena, California, is the U.S. Science team leader; Bjorn Eng of JPL is the project manager. The Terra mission is part of NASA's Earth Science Enterprise, a long-term research and technology program designed to examine Earth's land, oceans, atmosphere, ice and life as a total integrated system.

    The broad spectral coverage and high spectral resolution of ASTER will provide scientists in numerous disciplines with critical information for surface mapping, and monitoring dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface temperature mapping of soils and geology; and measuring surface heat balance.

    Size: 60 x 24 km (36 x 15 miles) Location: 30.6 deg. North lat., 111.2 deg. East long. Orientation: North at top Image Data: ASTER

  15. Three Gorges Dam, China

    NASA Technical Reports Server (NTRS)

    2002-01-01

    This ASTER image shows a 60 km stretch of the Yangtze River in China, including the Xiling Gorge, the eastern of the three gorges. In the left part of the image is the construction site of the Three Gorges Dam, the world's largest.

    This image was acquired on July 20, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet.

    ASTER is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASA's Jet Propulsion Laboratory, Pasadena, California, is the U.S. Science team leader; Bjorn Eng of JPL is the project manager. The Terra mission is part of NASA's Earth Science Enterprise, a long-term research and technology program designed to examine Earth's land, oceans, atmosphere, ice and life as a total integrated system.

    The broad spectral coverage and high spectral resolution of ASTER will provide scientists in numerous disciplines with critical information for surface mapping, and monitoring dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface temperature mapping of soils and geology; and measuring surface heat balance.

    Size: 60 x 24 km (36 x 15 miles) Location: 30.6 deg. North lat., 111.2 deg. East long. Orientation: North at top Image Data: ASTER

  16. 97. DAM OPERATING HOUSE WALL SECTION & MISCELLANEOUS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    97. DAM - OPERATING HOUSE - WALL SECTION & MISCELLANEOUS DETAIL (ML-8-41/2-FS) June 1935 - Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

  17. 105. DAM TAINTER GATE SUBMERGIBLE SECTION & ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    105. DAM - TAINTER GATE - SUBMERGIBLE - SECTION & ELEVATION (ML-8-48/8-FS) June 1935 - Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

  18. 103. DAM TAINTER GATE NONSUBMERGIBLE SECTION & ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    103. DAM - TAINTER GATE - NON-SUBMERGIBLE - SECTION & ELEVATION (ML-8-48/1-FS) June 1935 - Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

  19. 102. DAM TAINTER GATE SUBMERGIBLE DESIGN DATA ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    102. DAM - TAINTER GATE - SUBMERGIBLE - DESIGN DATA - CHANNEL RIBS (ML-8-48/C-FS) June 1935 - Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

  20. Have Large Dams Altered Extreme Precipitation Patterns?

    NASA Astrophysics Data System (ADS)

    Hossain, Faisal; Jeyachandran, Indumathi; Pielke, Roger

    2009-12-01

    Dams and their impounded waters are among the most common civil infrastructures, with a long heritage of modern design and operations experience. In particular, large dams, defined by the International Commission on Large Dams (ICOLD) as having a height greater than 15 meters from the foundation and holding a reservoir volume of more than 3 million cubic meters, have the potential to vastly transform local climate, landscapes, regional economics, and urbanization patterns. In the United States alone, about 75,000 dams are capable of storing a volume of water equaling almost 1 year's mean runoff of the nation [Graf, 1999]. The World Commission on Dams (WCD) reports that at least 45,000 large dams have been built worldwide since the 1930s. These sheer numbers raise the question of the extent to which large dams and their impounded waters alter patterns that would have been pervasive had the dams not been built.

  1. The Dramatic Methods of Hans van Dam.

    ERIC Educational Resources Information Center

    van de Water, Manon

    1994-01-01

    Interprets for the American reader the untranslated dramatic methods of Hans van Dam, a leading drama theorist in the Netherlands. Discusses the functions of drama as a method, closed dramatic methods, open dramatic methods, and applying van Dam's methods. (SR)

  2. Water quality, bed-sediment quality, and simulation of potential contaminant transport in Foster Creek, Berkeley County, South Carolina, 1991-93

    USGS Publications Warehouse

    Campbell, T.R.; Bower, D.E.

    1996-01-01

    Foster Creek, a freshwater tidal creek in Berkeley County, South Carolina, is located in an area of potential contaminant sources from residential, commercial, light industrial, and military activities. The creek is used as a secondary source of drinking water for the surrounding Charleston area. Foster Creek meets most of the freshwater- quality requirements of State and Federal regulatory agencies, but often contains low concentrations of dissolved oxygen and has been characterized as eutrophic. Investigations of water- and bed-sediment quality were made between 1991 and 1993 to assess the effects of anthropogenic sources of contamination on Foster Creek. Low-flow surface-water samples were generally free of toxic compounds with the exception of laboratory artifacts and naturally occurring trace metals. Storm-runoff samples generally contained very low concentrations (near detection limits) of a small number of volatile and semivolatile organics and naturally occurring trace metals. Concentrations of toxic compounds in excess of current (1995) South Carolina Department of Health and Environmental Control and U.S. Environmental Protection Agency regulations were not detected in surface-water samples collected from Foster Creek. Chemical analyses of streambed sediments indicated minimal anthropogenic effects on sediment quality. The particle-tracking option of the U.S. Geological Survey one-dimensional unsteady-flow model (BRANCH) indicated that as the simulated volume of rainfall runoff increased in the Foster Creek Basin, simulated particles in Foster Creek were transported greater distances. Simulating flow through the Bushy Park Dam (also known as Back River Dam) had little effect on particle movement in Foster Creek. Simulating typical withdrawal rates at a water-supply intake resulted in a slight attraction of particles toward the intake during conditions of relatively low runoff. These withdrawals had a greater influence on particles downstream of the intake

  3. Blue Origin testing

    NASA Image and Video Library

    2012-04-20

    NASA Administrator Charles Bolden (r) discusses the upcoming testing of Blue Origin's BE-3 engine thrust chamber assembly with Steve Knowles, Blue Origin project manager, at the E-1 Test Stand during an April 20, 2012, visit to Stennis Space Center. Blue Origin is one of NASA's partners developing innovative systems to reach low-Earth orbit.

  4. Relation between Streamflow of Swiftcurrent Creek, Montana, and the Geometry of Passage for Bull Trout (Salvelinus confluentus)

    USGS Publications Warehouse

    Auble, Gregor T.; Holmquist-Johnson, Christopher L.; Mogen, Jim T.; Kaeding, Lynn R.; Bowen, Zachary H.

    2009-01-01

    Operation of Sherburne Dam in northcentral Montana has typically reduced winter streamflow in Swiftcurrent Creek downstream of the dam and resulted in passage limitations for bull trout (Salvelinus confluentus). We defined an empirical relation between discharge in Swiftcurrent Creek between Sherburne Dam and the downstream confluence with Boulder Creek and fish passage geometry by considering how the cross-sectional area of water changed as a function of discharge at a set of cross sections likely to limit fish passage. With a minimum passage window of 15 x 45 cm, passage at the cross sections increased strongly with discharge over the range of 1.2 to 24 cfs. Most cross sections did not satisfy the minimum criteria at 1.2 cfs, 25 percent had no passage at 12.7 cfs, whereas at 24 cfs all but one of 26 cross sections had some passage and 90 percent had more than 3 m of width satisfying the minimum criteria. Sensitivity analysis suggests that the overall results are not highly dependent on exact dimensions of the minimum passage window. Combining these results with estimates of natural streamflow in the study reach further suggests that natural streamflow provided adequate passage at some times in most months and locations in the study reach, although not for all individual days and locations. Limitations of our analysis include assumptions about minimum passage geometry, measurement error, limitations of the cross-sectional model we used to characterize passage, the relation of Sherburne Dam releases to streamflow in the downstream study reach in the presence of ephemeral accretions, and the relation of passage geometry as we have measured it to fish responses of movement, stranding, and mortality, especially in the presence of ice cover.

  5. WinDAM C earthen embankment internal erosion analysis software

    USDA-ARS?s Scientific Manuscript database

    Two primary causes of dam failure are overtopping and internal erosion. For the purpose of evaluating dam safety for existing earthen embankment dams and proposed earthen embankment dams, Windows Dam Analysis Modules C (WinDAM C) software will simulate either internal erosion or erosion resulting f...

  6. Tectonic reevaluation of the Walden Creek Group

    SciTech Connect

    Carter, M.W.; Hatcher, R.D. Jr. . Dept. of Geological Sciences)

    1992-01-01

    Detailed mapping has focused on the internal stratigraphy and contact relationships of the Walden Creek Group (WCG). In the western part of the study area near Reliance, TN, interbedded siltstone and sandstone of the Sandsuck Formation lies stratigraphically beneath Lower Cambrian Chilhowee Group quartzites and shales. Near Pond and Hankins Mountains, Sandsuck Formation limestones flank a major NE-plunging syncline cored by feldspathic sandstone and quartz-pebble conglomerate. The Miller Cove fault separates the Sandsuck Formation from banded grayish-green slate, carbonate, and blue quartz-pebble conglomerate of the Wilhite Formation. The gradational contact is similar to that observed farther south in the Ocoee Gorge where overturned slate and siltstone of the WCG grade into graywacke and dark slate of the Great Smoky Group (GSG), and places additional important limitations on the southern extent of the Greenbrier fault that separates the WCG and GSG to the NE in the Great Smoky Mountains National Park. Leucogranite boulders exposed along the contact are similar to leucogranite exposed farther east in basement massifs beneath Snowbird Group. The restricted occurrence of these boulders along part of the contact between the WCG and the GSG may indicate fault reactivation and exhumation of basement and SG-GSG cover during the latter stages of Late Proterozoic rifting of Larentia. The depositional history of the WCG in SE TN thus probably began with deep-water sedimentation in a reactivated rift basin. This was followed by a period of alternating submarine fan and off-shelf sedimentation that filled the basin, then formation of shallow-water carbonate bank conditions toward the end of the WCG depositional cycle.

  7. Arch dam of the Khudoni hydroelectric station

    SciTech Connect

    Dzhakeli, P.A.; Kobakhidze, V.D.; Koridze, G.I.

    1987-01-01

    This paper discusses the Khudoni hydroelectric station. The selection of the type and site of the dam are described. A plan of the hydro development with the chosen concrete arch dam is shown. Engineering-geologic and seismotectonic conditions of the chosen site are examined. Two types of design were examined for the arch dam, and they are described. Structural elements of the dam are discussed as is reinforcement, stress-strain state, underground contour and outlet works.

  8. Effect of Surface Coal Mining on the Hydrology of Crooked and Turkey Creek Basins, Jefferson County, Alabama

    USGS Publications Warehouse

    Puente, Celso; Newton, John G.

    1979-01-01

    Streamflow, sediment yield, and water quality were monitored from October 1975 through May 1977 to determine the impact of surface coal mining on the hydrology of Crooked and Turkey Creek basins in Jefferson County, Alabama. The basins are in the northeast part of the Warrior coal field. Coal is and has been mined from the Blue Creek, Mary Lee, and and Newcastel coal beds in the Mary Lee group. Results show water-quality degradation, increased sediment yields, and increased low flow in most tributaries draining mined areas. The impact of mine drainage and sediment yield from mined subbasins on water in the main stem of Turkey Creek was small due to the alkalinity of the water in the creek and to dilution ratios that ranged from 1:30 to 1:300. Mine drainage has affected the quality of water in Crooked Creek. The dissolved solids concentration in water downstream from the mined areas was as much as 7 times greater than that in water in unmined parts of the basin. The sediment yield to Crooked Creek was lower in the mined area than in the unmined segment of the stream. The lower yield is due, in part, to the trapping of sediment in sediment ponds in the mines and in a swamp downstream from the mines. (USGS)

  9. Webinar: Stepped chute design for embankment dams

    USDA-ARS?s Scientific Manuscript database

    Changing demographics in the vicinity of dams have led to hazard creep in a number of dams worldwide. Many of these dams now have insufficient spillway capacity as a result of these changes in hazard classification from low to significant or high hazard. Stepped chutes applied to the embankment da...

  10. 75 FR 49429 - Metal and Nonmetal Dams

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-13

    ... embankment material strengths, and stability analyses to verify that the slopes of the dam would have... design the dam; several design and construction deficiencies, such as poor compaction, steep slopes, and... slope failure in 1987, the mine operator installed instruments in the dam to monitor internal water...

  11. Inception point for embankment dam stepped spillways

    USDA-ARS?s Scientific Manuscript database

    Stepped spillways applied to embankment dams have become a common design practice with the rehabilitation of aging watershed dams, especially those experiencing a hazard classification change from low to high hazard. Previous research on stepped spillways focused on gravity dams where aerated flow ...

  12. 30 CFR 57.20010 - Retaining dams.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Retaining dams. 57.20010 Section 57.20010 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE....20010 Retaining dams. If failure of a water or silt retaining dam will create a hazard, it shall be...

  13. 30 CFR 57.20010 - Retaining dams.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Retaining dams. 57.20010 Section 57.20010 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE....20010 Retaining dams. If failure of a water or silt retaining dam will create a hazard, it shall be...

  14. 30 CFR 56.20010 - Retaining dams.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Retaining dams. 56.20010 Section 56.20010 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE... Retaining dams. If failure of a water or silt retaining dam will create a hazard, it shall be of...

  15. 30 CFR 56.20010 - Retaining dams.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Retaining dams. 56.20010 Section 56.20010 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE... Retaining dams. If failure of a water or silt retaining dam will create a hazard, it shall be of...

  16. 30 CFR 56.20010 - Retaining dams.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Retaining dams. 56.20010 Section 56.20010 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE... Retaining dams. If failure of a water or silt retaining dam will create a hazard, it shall be of...

  17. 30 CFR 57.20010 - Retaining dams.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Retaining dams. 57.20010 Section 57.20010 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE....20010 Retaining dams. If failure of a water or silt retaining dam will create a hazard, it shall be...

  18. 30 CFR 56.20010 - Retaining dams.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Retaining dams. 56.20010 Section 56.20010 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE... Retaining dams. If failure of a water or silt retaining dam will create a hazard, it shall be of...

  19. 30 CFR 57.20010 - Retaining dams.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Retaining dams. 57.20010 Section 57.20010 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE....20010 Retaining dams. If failure of a water or silt retaining dam will create a hazard, it shall be...

  20. 30 CFR 57.20010 - Retaining dams.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Retaining dams. 57.20010 Section 57.20010 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE....20010 Retaining dams. If failure of a water or silt retaining dam will create a hazard, it shall be...