Download or read book National Dam Inspection Program Stephen Foster Dam NDS ID Number PA 906 DER ID Number 8 59 Susquehanna River Basin Mill Creek Bradford County Pennsylvania Phase I Inspection Report written by KIMBALL (L ROBERT) AND ASSOCIATES EBENSBURG PA. and published by . This book was released on 1979 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stephen Foster Dam is an earthfill dam 500 feet long and 49 feet high. The upstream slope is 3H:1V and covered with riprap to elevation 1085. The core trench is 10 feet wide and averages approximately 5 feet deep. The embankment is homogeneous and contains no distinct zones. The spillway is located on the left (north) abutment. The spillway approach is cut in earth and is trapezoidal in shape. The concrete ogee weir is 80 feet long. The spillway approach channel is approximately 600 feet long. The spillway exit channel is approximately 230 feet long and consists of a concrete lined chute. The drawdown conduit consists of a 48 inch concrete pipe. The drawdown conduit is regulated by a valve located in a control tower in the upstream portion of the embankment.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1979 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Mill Creek Dam NDI ID PA 0038 DER ID 008 051 Susquehanna River Basin Mill Creek Bradford County Pennsylvania Phase I Inspection Program written by D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA. and published by . This book was released on 1981 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is located across Mill Creek, approximately three miles upstream from its confluence with the Tuscarora Creek in Tuscarora Township, Bradford County, Pennsylvania. The dam is classified to be in the significant hazard category. It is estimated that failure of the dam may cause loss of a few lives and some property damage in these areas. The onsite inspection of Mill Creek Dam consisted of: Visual inspection of the embankment, abutments, and embankment toe, Visual examination of the spillway and the visible portions of the outlet works, and Evaluation of downstream area hazard potential.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1979-12 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 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 written by R. Jeffrey Kimball and published by . This book was released on 1981 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is located approximately 2 miles northwest of the Village of Colley, Wilmot Township, Bradford County, Pennsylvania. The inspection consisted of: Visual inspection of the retaining structure, abutments and toe; Examination of the spillway facilities, exposed portion of any outlet works and other appurtenant works; Observations affecting the runoff potential of the drainage basin; and Evaluation of the downstream area hazard potential. The dam appears to be in good condition and adequately maintained. From a brief survey conducted during the inspection, it was noted that the low spot on the crest of the dam exits at the top left edge of the spillway crest. It was observed during the inspection that a new concrete cap had been placed on the structure. The concrete appeared to be in good condition. The dam was constructed with dry rubble masonry with an upstream earthfill. No concrete exists on the downstream face of the structure or on the bench located along the downstream face of the structure. The rubble masonry appeared to be in good condition and well maintained.
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Sugar Creek Dam NDI ID Number PA 728 DER ID Number 8 53 Susquehanna River Basin South Branch Sugar Creek Bradford County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1981 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assessment of Sugar Creek Dam is based upon visual observations made at the time of inspection, review of available records and data, hydraulic and hydrologic computations and past operational performance. The inspection and review of Sugar Creek Dam did not reveal any problems which would require emergency action. The dam appears to be in fair condition and in need of minor maintenance. The Sugar Creek Dam is a high hazard-small size dam. The spillway design flood (SDF) for a dam of this size and classification is 1/2 PMF to PMF. The PMF has been selected as the spillway design flood based on the downstream potential for loss of life. The spillway and reservoir are considered capable of controlling approximately 50% of the PMF. The 0.1 feet of overtopping of the embankment crest during the 1/2 PMF event for a duration of 1 hour was not considered sufficient to cause failure of the structure. Based on the judgement of the evaluating engineer, the location and duration of the overtopping as well as the existence of a concrete curb on the upstream and downstream edge of the embankment crest would sufficiently contain the overtopping to the spillway area minimizing damage to the embankment and spillway. The spillway is considered inadequate.
Download or read book National Dam Inspection Program Falling Springs Dam NDS ID Number Pa 00372 DER ID Number 35 39 Pennsylvania Gas and Water Company Susquehanna River Basin Falling Springs Creek Lackawanna County Pennsylvania Phase I Inspection Report written by GANNETT FLEMING CORDDRY AND CARPENTER INC HARRISBURG PA. and published by . This book was released on 1978 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dam Inspection Act, Public Law 92-367, authorized the Secretary of the Army, through the Corps of Engineers, to initiate a program of inspection of dams throughout the United States. The purpose of the inspection is to determine if the dam constitutes a hazard to human life or property.
Download or read book National Dam Inspection Program Ridgebury Lake Dam NDI I D Number PA 00727 PennDER I D Number 8 57 Susquehanna River Basin Tributary to Fall Creek Bradford County Pennsylvania Phase I Inspection Report written by Bernard M. Michalcin and published by . This book was released on 1980 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a visual inspection, operational history, and available engineering data, the facility is considered to be in good condition. The size classification of the facility is intermediate and its hazard classification is considered to be high. In accordance with the recommended guidelines, the Spillway Design Flood (SDF) for the facility is the PMF (Probable Maximum Flood). Results of the hydrologic and hydraulic analysis indicate the facility will pass and/or store only about 45 percent of the PMF prior to embankment overtopping. A breach analysis indicates that failure under less than 1/2 PMF conditions could lead to increased downstream damage and potential for loss of life. Thus, based on screening criteria provided in the recommended guidelines, the spillway is considered to be seriously inadequate and the facility unsafe, non-emergency. Calculations also indicate that if the spillway were constructed in accordance with available desing drawings, the facility could pass and/or store approximately 63 percent of the PMF.
Download or read book National Dam Inspection Program Beechwood Lake Dam NDS ID Number PA 37 DER ID Number 59 61 SCS ID Number PA 454 Susquehanna River Basin East Beech Woods of Mill Creek Tioga County Pennsylvania Phase I Inspection Report written by Kuang-hwei Chuang and published by . This book was released on 1979 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beechwood Lake Dam is an earthfill dam 1030 feet long and 63 feet high. The embankment is a zoned earth embankment consisting of a center impervious core section with pervious upstream and downstream zones. The principal spillway consists of a 30 inch diameter reinforced concrete pipe with a 2.5 foot x 7.5 foot reinforced concrete riser. The inspection and review of data of Beechwood Lake Dam did not reveal any problems which require emergency action. The dam appears to be stable, well maintained, safely operated and in good condition. Beechwood Lake Dam is a high hazard-intermediate size dam. The spillway design flood is the PMF (Probable Maximum Flood). The spillway and reservoir are capable of controlling the PMF. Based upon the criteria established by the Corps of Engineers, the spillway is termed adequate.
Download or read book National Dam Inspection Program Mill Water Dam NDS I D Number PA 00703 DER I D Number 6 442 Susquehanna River Basin Back Creek Berks County Pennsylvania Phase I Inspection Report written by Mary F. Beck and published by . This book was released on 1980 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mill Water Pond Dam is owned by the Bethlehem Mines Corporation. The dam was originally built as an industrial water supply dam for the Grace Mine. As the mine is no longer in operation, water from the reservoir is no longer used. The dam and its appurtenant facilities are considered to be in good condition. The dam is classified as a Small size structure with a High hazard classification, consistent with the dam's location immediately above an occupied dwelling and above commercial buildings and other residences farther downstream on Conestoga Creek. In accordance with criteria established by Federal (OCE) Guidelines, the spillway design flood for this Small size dam and High hazard classification is one-half to the full Probable Maximum Flood (PMF). As the dam height and total capacity are near the lower limit of the size classification, the selected spillway design flood is one-half the PMF. Mining of the deep iron ore body has caused extensive subsidence. The mine waste rock is disposed of downstream of the subsidence area. Therefore, currently, Mill Water Pond intercepts surface runoff only from about 0.31 square mile immediately above the dam. Hydrologic and hydraulic computations presented in Appendix D indicate the maximum spillway capacity is greater than the peak PMF inflow from the reduced watershed. Therefore, the spillway system of this structure is considered to be Adequate.
Download or read book National Dam Inspection Program North Fork Dam NDS ID Number PA 28 DER ID Number 53 57 SCS ID Number PA 406 Susquehanna River Basin White Branch of North Fork Potter County Pennsylvania Phase I Inspection Report written by Kuang-hwei Chuang and published by . This book was released on 1979 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: North Fork Dam is a homogeneous earthfill dam 622 feet long and 58 feet high. The principal spillway is a two-stage drop inlet spillway with a 30' diameter reinforced concrete pipe. The riser unit is 2.5 feet by 7.5 feet and is 33 feet high. The emergency spillway is located on the left abutment and is formed by a trapezoidal shaped open cut in glacial sand clay and gravel. The bottom width of the spillway channel is 100 feet. The spillway exit channel is 482 feet long and discharges on the left hillside below the toe of the dam. The inspection and review of data of North Fork Dam did not reveal any problems which require emergency action. The dam appears to be stable, well maintained, safely operated and in good condition. However, the spillway and reservoir are capable of controlling 60% of Probable Maximum Flood without overtopping the earth embankment. Based upon criteria established by the Corps of Engineers, the spillway is termed inadequate, but not seriously inadequate. In addition, the earth berm in the emergency spillway exit channel is low and overtopping of the berm during flood conditions will cause erosion of the embankment/abutment contact. This spillway berm will be overtopped at approximately 25% of the PMF.
Download or read book National Dam Inspection Program Shaver Creek Dam NDS ID Number PA 577 DER ID Number 31 72 Susquehanna River Basin Shaver Creek Huntingdon County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1979 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shaver Creek Dam is a homogeneous earthfill dam. The embankment is 540 feet long and approximately 46 feet high. The upstream slope is 2.75H:1V and covered with riprap. The downstream slope is 2.5H:1V and covered with grasses. The crest width is 15 feet. The embankment has a select impervious core with random materials on the upstream and downstream sides of the core. A rock toe is present at the downstream end of the embankment. The cutoff trench is 12 feet wide and is excavated to firm rock. The spillway is located on the left abutment and consists of a concrete lined chute. The concrete weir is 1 foot wide and 52 feet long. The right side of the spillway has a 10 foot high concrete retaining wall extending 55 feet downstream of the concrete weir. Beyond the concrete retaining wall and on the left side of the spillway is a concrete paved chute with 2H:1V side slopes. The spillway exit channel is approximately 115 feet long and discharges into a 50 foot long stilling basin. The reservoir can be drained through a 4 foot by 4 foot concrete box culvert. The box culvert ends downstream at a concrete endwall. Flow through the 4 foot by 4 foot box is controlled by a sluice gate which is connected to a stem through the control tower.
Download or read book National Dam Inspection Program Pennsylvania Gas and Water Company Olyphant Number 2 Dam NDS ID Number 382 Susquehanna River Basin Grassy Island Creek Lackawanna County Pennsylvania Phase I Inspection Report written by A. C. Hooke and published by . This book was released on 1978 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dam Inspection Act, Public Law 92-367, Authorized the Secretary of the Army, through the Corps of Engineers, to initiate a program of inspection of dams throughout the United States. The purpose of the inspection is to determine if the dam constitutes a hazard to human life or property.
Download or read book National Dam Inspection Program PA 467 Dam NDI I D Number PA 00054 DER I D Number 58 131 SCS I D Number PA 467 Susquehanna County Commissioners Susquehanna River Basin Tributary to Martins Creek Susquehanna County Pennsylvania Phase I Inspection Report written by Frederick Futchko and published by . This book was released on 1979 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam consists of a zoned, earthfill embankment that is 590 feet long and 52 feet high at its maximum section. The main spillway is a drop spillway located near the right abutment of the dam. It consists of a concrete riser connected to a 30-inch diameter reinforced concrete pipe under the embankment. The auxiliary spillway is an excavated channel along the left abutment of the dam. It is a grass-linked excavation in earth. Based on visual inspection, available records, calculations and past operational performance, PA-467 Dam is judged to be in good condition. The existing spillway can pass the Probable Maximum Flood(PMF) without overtopping of the dam. The spillway capacity is rated as adequate. There is a slope stability analysis for the embankment, and it indicates that the embankment has adequate factors of safety. There is no evidence of significant problems threatening the embankment.
Download or read book National Dam Inspection Program Brown Creek Dam NDS ID Number PA 573 DER ID Number 40 208 Borough of Plymouth Susquehanna River Basin Brown Creek Luzerne County Phase I Inspection Report written by KIMBALL (L ROBERT) AND ASSOCIATES EBENSBURG PA. and published by . This book was released on 1980 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assessment of Brown Creek Dam is based upon visual observations made at the time of inspection, review of available records and data, hydraulic and hydrologic computations and past operational performance. The Brown Creek Dam appears to be in fair condition. The erosion on the crest and downstream embankment in the area of the principal spillway and along the wingwall of the emergency spillway crest should be repaired. Because the reservoir was dry (as is the normal condition) no determination as to potential wet zones or seepage areas could be made. Maintenance of the dam and operating facilities is considered fair. The Brown Creek Dam is a high hazard-small dam. The recommended spillway design flood (SDF) for this dam is the 1/2 PMF to PMF. Based on the potential for downstream loss of life, the spillway design flood has been selected as the PMF. The spillway and reservoir are capable of controlling approximately 80% of the PMF without overtopping the embankment (low spot). Based on criteria established by the Corps of Engineers, the spillway is termed inadequate.
Download or read book National Dam Inspection Program SCS PA 476 NDS I D Number PA 00719 DER I D Number 6 456 Delaware River Basin Tributary of Mill Creek Berks County Pennsylvania Phase I Inspection Report written by John Henry Frederick (Jr) and published by . This book was released on 1980 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: SCS PA 476 Dam is a 46-foot-high zoned-earth embankment about 400 feet long. The principal spillway consists of a concrete drop inlet riser, 182 feet of 24 inch reinforced concrete pipe with six anti-seep collars, and an impact basin. The reservoir drain is a 12-inch corrugated metal pipe. The dam and its appurtenant facilities are considered to be in good condition. Calculations indicate that the existing spillway systems are capable of passing the Probable Maximum Flood (PMF) without overtopping. Therefore, the spillway system is considered to be adequate.
