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National Dam Inspection Report. Summit Lake Dam (NDI ID Number PA-00291) (DER-ID Number 35-26) Susquehanna River Basin, Summit Lake Creek, Lackawanna County, Pennsylvania. Phase I Inspection Report
Based on visual inspection, available records, calculations and past operational performance, and according to criteria established for these studies, Summit Lake Dam is rated as unsafe, nonemergency, because the spillway capacity is seriously inadequate. The existing spillway can pass 26 percent of the Probable Maximum Flood (PMF) without overtopping of the dam. The failure of the dam would cause an increased hazard to loss of life downstream. As a whole, the dam is judged to be in fair condition. If the top of the dam were raised 0.1 foot to its design elevation, the spillway could pass 27 percent of the PMF. The spillway capacity would still be rated as seriously inadequate. There is no evidence of stability problems with the embankment. The masonry gravity section of the embankment has no significant deviations from the OCE guideline for stability, since the toe pressure is well below the allowable.
National Dam Inspection Report. Summit Lake Dam (NDI ID Number PA-00291) (DER-ID Number 35-26) Susquehanna River Basin, Summit Lake Creek, Lackawanna County, Pennsylvania. Phase I Inspection Report
Based on visual inspection, available records, calculations and past operational performance, and according to criteria established for these studies, Summit Lake Dam is rated as unsafe, nonemergency, because the spillway capacity is seriously inadequate. The existing spillway can pass 26 percent of the Probable Maximum Flood (PMF) without overtopping of the dam. The failure of the dam would cause an increased hazard to loss of life downstream. As a whole, the dam is judged to be in fair condition. If the top of the dam were raised 0.1 foot to its design elevation, the spillway could pass 27 percent of the PMF. The spillway capacity would still be rated as seriously inadequate. There is no evidence of stability problems with the embankment. The masonry gravity section of the embankment has no significant deviations from the OCE guideline for stability, since the toe pressure is well below the allowable.
National Dam Inspection Report. Summit Lake Dam (NDI ID Number PA-00291) (DER-ID Number 35-26) Susquehanna River Basin, Summit Lake Creek, Lackawanna County, Pennsylvania. Phase I Inspection Report
1979
85 pages
Report
Keine Angabe
Englisch