National Dam Safety Program. Trout Run Dam (NDI-PA.-481), Ohio River Basin, Trout Run, Westmoreland County, Pennsylvania. Phase I Inspection Report.
GAI CONSULTANTS INC MONROEVILLE PA
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Trout Run Dam is an earthen embankment with a concrete corewall. The overall length of the structure is 582 feet and its maximum height is 41 feet. The facility is equipped with a spillway on the left abutment as well as a 30-inch diameter cast iron blow-off pipe and a 12-inch diameter supply pipe encased in concrete beneath the embankment. Based on a visual inspection, past performance and available engineering data as well as a brief hydrologic and hydraulic investigation, the facility is considered to be in fair condition. Hydrologic and hydraulic calculations indicate that the facility is capable of passing andor storing 47 of the runoff associated with a PMF event. Hence, in accordance with screeening criteria established by the Department of the Army, Office of the Chief of Engineers, the spillway is deemed to be seriously inadequate. The dam has a history of seepage problems. At the time of inspection seepage andor saturated conditions were observed, in various areas at the toe of the embankment and in an area approximately 20 feet below the dam crest.
- Civil Engineering