National Dam Inspection Program. Silver Lake Dam (NDI ID PA 00791, PA DER 9-78), Delaware River Basin, Van Horn Creek, Pennsylvania. Phase I Inspection Report,
O'BRIEN AND GERE ENGINEERS INC PHILADELPHIA PA
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Silver Lake Dam is an earth embankment about 350 feet long and 15 feet high at its maximum section. An ungated overflow masonry spillway is located at the approximate midpoint of the embankment. Silver Lake Dam has a maximum storage capacity of 51 acre feet and a maximum height of 15 feet. The dam is therefore classified as Small size structure. Because of the potential for the possible loss of a few lives and appreciable property losses in the damage area, located about 0.6 miles downstream, the dam is considered to be a Significant hazard structure. The selected Spillway Design Flood SDF for Silver Lake Dam Small size, Significant hazard is the one hundred year storm. An examination of the hydrologic and hydraulic analyses indicates that the spillway is not capable of passing the SDF without the dam being overtopped. The spillway is classified as Inadequate. Based on visual observations and a review of the information obtained from the Pennsylvania Department of Environmental Resources, Silver Lake Dam appears to be in fair condition.
- Hydrology, Limnology and Potamology
- Civil Engineering