National Dam Inspection Program Lake Nessmuk Dam Ndi Id Number Pa 00032 Der Id Number 59 66 Scs Id Number Pa 601 Susquehanna River Basin Morris Branch Marsh Creek Tioga County Pennsylvania Phase I Inspection Report
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National Dam Inspection Program. Lake Nessmuk Dam (NDI ID Number PA-00032), DER ID Number 59-66, SCS ID Number PA-601), Susquehanna River Basin, Morris Branch, Marsh Creek, Tioga County, Pennsylvania. Phase I Inspection Report
| Author | : Frederick Futchko |
| Publisher | : |
| Total Pages | : 81 |
| Release | : 1979 |
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| ISBN | : |
Based on visual inspection, available records, calculations and past operational performance, Lake Nessmuk 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 problems threatening the embankment. The visual inspection (25 July 1979) revealed that it is uncertain that the gate is operational. (Author).
Government Reports Annual Index
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| Total Pages | : 940 |
| Release | : 1980 |
| Genre | : Government reports announcements & index |
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National Dam Inspection Program. Brown's Lake Dam (NDI ID Number PA-516, DER ID Number 59-68). Arlington Brown, Susquehanna River Basin Tributary, West Branch Stony Fork Creek, Tioga County, Pennsylvania. Phase 1. Inspection Report
| Author | : |
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| Total Pages | : 63 |
| Release | : 1981 |
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The assessment of Brown's Lake Dam is based upon visual observations made at the time of inspection, hydraulic and hydrologic computations and past operational performance. The inspection and review of data of the Brown's Lake Dam did not reveal any problems which would require emergency action. The dam appears to be in good condition and adequately maintained. Brown's Lake 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 the PMF. the PMF has been selected as the spillway design flood based on downstream potential for loss of life. The spillway and reservoir are capable of controlling the spillway design flood (PMF). Based on criteria established by the Corps of Engineers, the spillway is termed adequate. The following recommendations and remedial measures should be instituted as soon as possible. (1) A regularly scheduled maintenance program should be developed and implemented. (2) A warning system should be developed to warn downstream residents of large spillway discharges or imminent failure of the dam. (3) A safety inspection program should be implemented with inspections at regular intervals by qualified personnel. (4) The drainline valve should be operated on a regular basis.
National Dam Inspection Program. Lake Walter Dam (NDI I.D. Number PA-0080 DER I.D. Number 058-135) Susquehanna River Basin. Tributary of Messhoppen Creek, Susquehanna County, Pennsylvania. Phase I Inspection Report
| Author | : Lawrence D. Andersen |
| Publisher | : |
| Total Pages | : 64 |
| Release | : 1981 |
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| ISBN | : |
Lake Walter Dam is located on Spring Run, approximately one mile upstream of its confluence with Meshoppen Creek in Springville Township, Susquehanna County, Pennsylvania. The condition of Lake Walter Dam is considered to be good. The only significant condition noted which requires further attention is the lack of erosion protection in the emergency spillway discharge channel. The swampy condition at the toe of the dam is not considered to be significant at this time; however, the condition should be monitored to document if seepage is developing.
National Dam Inspection Program. Kelsey Creek Dam (NDI I.D. Number PA-00031 DER I.D. Number 59-64 SCS I.D. Number PA-600), Susquehanna River Basin, Kelsey Creek, Tioga County, Pennsylvania. Phase I Inspection Report
| Author | : Frederick Futchko |
| Publisher | : |
| Total Pages | : 86 |
| Release | : 1979 |
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| ISBN | : |
Kelsey Creek Dam consists of a zoned, earthfill embankment that is 860 feet long and 66 feet high at maximum section. The main spillway is a drop spillway located near the center of the embankment. It consists of a concrete riser that connects to a 36-inch diameter reinforced concrete pipe under the embankment. The auxiliary spillway is at the right abutment of the dam. It is a grass-lined excavation in earth. Based on visual inspection, available records, calculations and past operational performance, Kelsey Creek 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. No deficiencies were noted during the visual inspection.
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
| Author | : Kuang-hwei Chuang |
| Publisher | : |
| Total Pages | : 71 |
| Release | : 1979 |
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| ISBN | : |
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.
National Dam Inspection Program. Maple Lake Dam (NDI ID Number PA-01026, DER ID Number 57-38), Susquehanna River Basin, Branch of Blackwater Run, Sullivan County, Pennsylvania. Phase I Inspection Report
| Author | : |
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| Total Pages | : 100 |
| Release | : 1981 |
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Maple Lake Dam is an earthfill embankment 14.4 feet high and 283 feet long, excluding spillway. The emergency spillway is located at the left abutment, consisting of an earth channel having a trapezoidal cross section. The bottom width of the spillway at the reservoir outlet is 56 feet. A service spillway, consisting of a 12-inch riser pipe and an 8-inch diameter outlet pipe, is located approximately 100 feet from the right abutment. The outlet works was reported to consist of an 8-inch diameter asbestos cement pipe, extending upstream of the riser pipe to the reservoir and terminating with two sections of an 8-inch diameter vitrified clay pipe, having a concrete plug at the inlet. Based on visual inspection, the Maple Lake Dam is judged to be in good condition. Under the present conditions, the spillway will pass approximately 37 percent of the PMF. Should the top of the dam be restored to its design elevation, the spillway could pass the SDF without overtopping the dam.
National Dam Inspection Program. Briar Creek Dam (NDI ID Number PA-00651, DER ID Number 19-77, SCS ID Number PA-497), Susquehanna River Basin, East Branch Briar Creek, Columbia County, Pennsylvania. Phase I Inspection Report
| Author | : Albert Charles Hooke |
| Publisher | : |
| Total Pages | : 89 |
| Release | : 1979 |
| Genre | : |
| ISBN | : |
Based on visual inspection, available records, calculations and past operational performance, Briar Creek 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, which indicates that the embankment has adequate factors of safety. There is no evidence of significant problems threatening the embankment. A slide and sinkholes have developed in the auxiliary spillway.
