National Dam Inspection Program. Marshall Lake Dam (NDI ID Number PA- 00985, DER ID Number 45-52), Delaware River Basin, Pond Creek, Monroe County, Pennsylvania. Phase I Inspection Report
GEO-TECHNICAL SERVICES INC HARRISBURG PA
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Marshall Lake Dam is an earthfill embankment approximately 9 feet high and 305 feet long, including spillway. The spillway is located at the right abutment, consisting of an 80 foot long and 1.5 foot wide concrete weir. The weir intersects the slope of the right abutment and terminates at a vertical concrete endwall on the earthfill dam embankment. The outlet works consist of a 24-inch diameter steel pipe with no visible upstream or downstream controls. Based on visual inspection, Marshall Lake Dam is judged to be in poor condition. Under the present conditions, the spillway will pass approximately 4 percent of the PMF without overtopping the dam.
- Hydrology, Limnology and Potamology
- Civil Engineering