A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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
Based on visual inspection, available records, calculations, past operational performance, and according to criteria established for these studies, Shawnee Dam is judged to be unsafe, non-emergency, because the spillway capacity is rated as seriously inadequate. The existing spillway will pass only about 38 percent of the Probable Maximum Flood (PMF) without overtopping of the dam. If the low area on the top of the dam were filled to the design elevation, the spillway would pass only about 41 percent of the PMF, and it would still be rated as seriously inadequate. For either condition, it is judged that the dam could not withstand the depth and duration of overtopping that would occur for the 1/2 PMF. Failure of the dam would cause an increased hazard for loss of life downstream. As a whole, the dam is judged to be in poor condition. No stability problems were evident for the embankment at the time of the visual inspection, but a potential hazard exists due to significant seepage at and near the toe of the dam. The spillway weir meets recommended guidelines for stability under the normal operating condition, but not under the assumed maximum loading condition. Under the assumed maximum loading, the ability of the weir to resist failure by sliding is questionable. Erosion of material that has occurred at the toe of the weir adversely affects the stability of the structure.
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
Based on visual inspection, available records, calculations, past operational performance, and according to criteria established for these studies, Shawnee Dam is judged to be unsafe, non-emergency, because the spillway capacity is rated as seriously inadequate. The existing spillway will pass only about 38 percent of the Probable Maximum Flood (PMF) without overtopping of the dam. If the low area on the top of the dam were filled to the design elevation, the spillway would pass only about 41 percent of the PMF, and it would still be rated as seriously inadequate. For either condition, it is judged that the dam could not withstand the depth and duration of overtopping that would occur for the 1/2 PMF. Failure of the dam would cause an increased hazard for loss of life downstream. As a whole, the dam is judged to be in poor condition. No stability problems were evident for the embankment at the time of the visual inspection, but a potential hazard exists due to significant seepage at and near the toe of the dam. The spillway weir meets recommended guidelines for stability under the normal operating condition, but not under the assumed maximum loading condition. Under the assumed maximum loading, the ability of the weir to resist failure by sliding is questionable. Erosion of material that has occurred at the toe of the weir adversely affects the stability of the structure.
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
1980
92 pages
Report
No indication
English
Shawnee National Forest Subsidence Study
| British Library Conference Proceedings | 1994
Shawnee Indians. April 26, 1848
| TIBKAT | 1848