Download or read book National Dam Inspection Program Mahanoy Dam Number 2 NDS ID Number PA 667 DER ID Number 54 11 Susquehanna River Basin Tributary to North Mahanoy Creek Schuylkill County Pennsylvania 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 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assessment of Mahanoy Dam No. 2 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. Mahanoy Dam No. 2 appeared to be in poor condition. Vegetation consisting of brush and small trees were observed on the upstream and downstream slopes. Erosion was noted on the downstream embankment near the maximum section of the dam. Several wet areas were located on the downstream face of the embankment during the inspection. One seepage point was noted at the right abutment contact and two other seepage points were observed near the left abutment. The reservoir drain valves have not been operated in the recent past. Maintenance of the dam and operating facilities is considered poor. Mahanoy Dam No. 2 is a high hazard-small size dam. The spillway design flood is the 1/2 PMF to PMF (Probable Maximum Flood). Based on the downstream potential for loss of life the spillway design flood for this dam has been selected as the PMF. Mahanoy Dam No. 2's spillway is capable of controlling approximately 12% of the PMF without overtopping the embankment. Based on criteria established by the Corps of Engineers, the spillway is termed seriously inadequate. If Mahanoy Dam No. 2 should fail due to overtopping, hazard to loss of life and property downstream of the dam would be significantly increased from that which would exist prior to the overtopping. Mahanoy Dam No. 2 is classified as unsafe, non-emergency.
Download or read book National Dam Inspection Program Mahanoy Township Dam Number 2 NDS ID Number PA 685 DER ID Number 54 34 Mahanoy Township Municipal Authority Susquehanna River Basin Cold Run Schuylkill County Pennsylvania 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 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assessment of Mahanoy Township Dam No. 2 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. Mahanoy Township Dam No. 2 is a high hazard-small size dam. The spillway design flood (SDF) for this dam is the 1/2 PMF to PMF. Based on the downstream potential for loss of life the SDF is the PMF. The spillway and reservoir are capable of controlling approximately 73% of the PMF without overtopping the embankment. Based on criteria established by the Corps of Engineers, the spillway is termed inadequate. No seepage or wet areas were observed during the inspection on the abutments, slopes nor along the toe of dam.
Download or read book National Dam Inspection Program Park Place Dam Number 3 NDS ID PA 00682 DER ID 54 12 Susquehanna River Basin Tributary of North Mahanoy Creek Schuylkill County Pennsylvania Phase I Inspection Report written by WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA. and published by . This book was released on 1979 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Park Place Dam No. 3 is a 32 foot high earthen embankment across an unnamed tributary of North Mahanoy Creek. The 685 foot long embankment impounds a 109 acre-foot reservoir within an 0.27 square mile drainage basin. Since very limited data exists regarding the physical features of the dam and appurtenances, most of the features described herein were obtained from field measurements taken during this inspection. The downstream slope was measured to be 2H:1V and is covered with riprap and occasional vegetation, as shown on Photographs 7 and 8. The average upstream slope could not be measured as the very small freeboard between the crest of the dam and the normal pool prevented a reliable measurement. The upstream portion of the slope between the crest and to at least several feet below the waterline was covered with riprap. The crest width ranges from 10 to 12 feet and averages approximately 11 feet wide. A 10-inch water supply pipe is located at the base of the embankment. An eight-inch water supply line branches off in the downstream valve house at the downstream toe. Discharge through both lines is controlled by valves located in the valve house.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SUSQUEHANNA RIVER BASIN TRIBUTARY TO NORTH MAHANOY CREEK SCHUYLKILL COUNTY PENNSYLVANIA written by United States. Army. Corps of Engineers. Baltimore District and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Pole Run Dam Number 4 NDS ID PA 00686 DER ID 54 36 Susquehanna River Basin Pole Run Creek Schuylkill County Pennsylvania Phase I Inspection Report written by WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA. and published by . This book was released on 1979 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pole Run Dam No. 4 is a 30 foot high earthen embankment across Pole Run, a tributary of North Mahanoy Creek. The 780 foot long dam impounds a nine acre reservoir within an 0.58 square mile drainage basin. Very limited data exists regarding the physical features of the dam. The average measured downstream slope is 2H:1V, and the slope is covered with stone and vegetation. Since the average freeboard of the structure is less than one foot at normal pool level, the upstream slope could not be measured. A portion of the upstream slope is covered with stone, and this stone could be seen to extend at least two feet below the water and it is probable that it extends several feet below that elevation. The crest width ranges from 15 feet to 27 feet. The spillway is located at the right abutment, and consists of an open concrete channel with concrete retaining walls. The water supply intakes could not be inspected as they are below water and the pipes are buried in the embankment. The outlet pipes were inspected and three pipes were found. Near the toe of the dam, valves were located which are presumably used to control flow through the pipes.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1980 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1980-11 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Shenandoah Creek Dam NDS ID Number PA 687 DER ID Number 54 139 Susquehanna River Basin Unnamed Tributary to Shenandoah Creek Schuylkill County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1980 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assessment of Shenandoah Creek Dam is based upon visual observations made at the time of inspection, interviews with the owner and hydrologic and hydraulic analyses. Shenandoah Creek Dam is a high hazard-small size dam. The recommended design flood for this dam is the 1/2 PMF to PMF. Based on the hazard and size classification of this dam and the downstream potential for loss of life the SDF for this dam is the PMF. The spillway and reservoir are capable of controlling the PMF. Based on criteria established by the Corps of Engineers, the spillway is termed adequate. The spillway and the outlet works gate tower are in a severely deteriorated condition and should be repaired.
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 Lake Susquehanna Dam NDS ID Number PA 00818 DER ID Number 54 177 High Vista Inc Susquehanna River Basin Little Sugarloaf Creek Schuylkill and Luzerne Counties Pennyslvania 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 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the visual inspection, available records, calculations and past operational performance, Lake Susquehanna Dam is judged to be in good condition. However, the spillway will not pass the Probable Maximum Flood (PMF) without overtopping the dam. If Lake Susquehanna Dam should be overtopped, it would probably fail by embankment erosion. If Lake Susquehanna Dam should fail due to overtopping, the hazard to loss of life downstream from the dam would be significantly increased from that which would exist just prior to overtopping. Based on criteria established for these studies by the Department of the Army, Office of the Chief of Engineers (OCE), the spillway capacity is rated as inadequate. One-half the PMF is less than the spillway capacity; therefore, based on the OCE criteria, the spillway is not rated as seriously inadequate.
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 Raven Run Dam Number 2 NDS ID Number PA 663 DER ID Number 54 7 Susquehanna River Basin Lost Creek Schuylkill County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1980 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Raven Run Dam No. 2 is an earth and rockfill dam, 462 feet long and 37 feet high. The crest width of the dam is 8 feet. The spillway is located on the right abutment and consists of a rectangular shaped weir formed by stone masonry walls on both sides. The weir is 60 feet long. The spillway exit channel discharges on the right hillside below the toe of dam. The outlet conduit consists of a 24 inch or a 36 inch cast iron pipe under the earth embankment. Upstream of Raven Run Dam No. 2 is Raven Run Dam No. 3. All flows from Raven Run Dam No. 3 discharge into Raven Run No. 2 Reservoir. The spillway and reservoir are capable of controlling the PMF. Based on criteria established by the Corps of Engineers, the spillway is termed adequate. The seepage exiting below the toe of the dam should be monitored at regular intervals. In addition, a subsidence investigation should be conducted to determine the effects of past and present mining beneath the structure.
Download or read book National Dam Inspection Program Brandonville Pumping Station Dam NDS ID Number PA 661 DER ID Number 54 58 Susquehanna River Basin Davis Run Schuylkill County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1980 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brandonville Pumping Station Dam is an earthfill dam, 374 feet long and approximately 21 feet high. The top width varies from approximately 24 feet to 52 feet. The upstream slope is 1.5H:1V and protected with grouted riprap. The downstream slope is formed by a dry masonry wall and varies from 1H:1V to nearly vertical. A 4 foot wide walkway is provided near the center of the downstream slope at the right abutment. The spillway is located on the right abutment and consists of a grouted masonry lined overflow. The spillway is 40 feet wide and near ogee in shape. The inspection and review of data of Brandonville Pumping Station Dam did not reveal any problems which require emergency action. The dam appears to be in fair condition but poorly maintained. The spillway and reservoir are capable of controlling 6% of the PMF. Based on criteria established by the Corps of Engineers, the spillway is termed inadequate, but not seriously inadequate.
Download or read book National Dam Inspection Program Kehly Run Dam Number 3 NDS ID Number PA 657 DER ID Number 54 17 Susquehanna River Basin Kehly Run Schuylkill County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1980 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kehly Run Dam No. 3 is an earth and rockfill dam 442 feet long and approximately 33 feet high. The spillway is an open cut channel located on the left abutment. The spillway crest has a total length of 35 feet and has an irregular bottom. Immediately downstream of Kehly Run Dam No. 3 is a swimming pool which forms tailwater on the dam. This swimming pool is formerly Kehly Run Dam No. 2. Upstream of Kehly Run Dam No. 3 are three reservoirs (Kehly Run Dams No. 4, 5, 6). Kehly Run Dam No. 3 appears to be in fair condition. Several areas of 'possible past instability' are apparent on the downstream slope. In addition, extensive seepage areas have been reported in the past but may be obscured by the tailwater. Maintenance of the dam and operating facilities is considered poor. The spillway design flood is the PMF (probable maximum flood). The spillway and reservoir are capable of controlling approximately 17% of the PMF without overtopping the embankment.
Download or read book National Dam Inspection Program Kehly Run Dam Number 5 NDS ID Number PA 658 DER ID Number 54 7 Susquehanna River Basin Kehly Run Schuylkill County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1980 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kehly Run Dam No. 5 is an earthfill dam which is semi-circular in plan and convex in the downstream direction. The embankment is 1,050 feet long and 25 feet high. The crest width varies from 15 feet to 25 feet wide. The lower part of the downstream slope of the embankment consists of hand placed stone. The upper portion of the downstream slope consists of an earthfill. The reservoir drain conduit consists of one 6-inch cast iron pipe. The spillway is located on the left abutment and consists of a stonelined chute. The spillway is 39 feet long with 4H:1V sideslopes. The spillway discharge channel extends 625 feet downstream of the weir and bypasses Kehly Run Dam No. 4. The spillway and reservoir are capable of controlling approximately 75% of the PMF without overtopping the earth embankment. Based on criteria established by the Corps of Engineers, this spillway is termed inadequate. The long term affect of the seepage and wet areas on the abutments, and erosion of the slopes should be evaluated. Heavy growth of vegetation on the slopes should be selectively removed.
Download or read book National Dam Inspection Program Waste House Run Number 3 Dam NDS ID Number PA 684 DER ID Number 54 26 Susquehanna River Basin Waste House Run Schuylkill County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1980 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assessment of Waste House Run No. 3 Dam is based upon visual observations made at the time of inspection, interviews with the owner and hydrologic and hydraulic analyses. Waste House Run No. 3 Dam is a high hazard-intermediate size dam. The dam is in fair condition. The spillway design flood is the PMF (Probable Maximum Flood). The spillway and reservoir are capable of controlling approximately 55% of the PMF without overtopping the embankment. Based on criteria established by the Corps of Engineers, the spillway is termed inadequate. Seepage is exiting at several locations at the toe of dam. One of these seepage areas is approximately 8 feet above the toe of dam on the upstream wall of the valve house. Significant movement of the downstream slope and walls of the valve house are in evidence and additional analyses are warranted.
