National Dam Inspection Program. Pine Run Dam Number 1 (NDS ID Number PA-648, DER ID Number 40-20), Susquehanna River Basin, Pine Run, Luzerne County, Pennsylvania. Phase I Inspection Report.
Abstract
The assessment of Pine Run Dam No. 1 is based upon visual observations made at the time of inspection, review of available records and data, hydraulic and hydrologic computations and past operational performance. Pine Run Dam No. 1 appears to be in poor condition. Severe deterioration of the downstream slope, in particular, the overflow section, exists. The concrete has extensive cracks, and deteriorated portions. Seepage is passing through portions of the dam and under the spillway slabs. The mortar between the masonry blocks on the exposed downstream slope has eroded. The concrete buttresses have severely deteriorated and show stress cracks. The stability analysis conducted for this study which was based on assumed strength parameters indicates that the dam is unstable with water levels corresponding to the top of the non-overflow section (elevation 949.0). Pine Run Dam No. 1 is a high hazard-intermediate size dam. The recommended spillway design flood (SDF) for this dam is the PMF. The spillway and reservoir are capable of controlling approximately 30% of the PMF without overtopping the embankment. Based on criteria established by the Corps of Engineers, the spillway is termed seriously inadequate. If Pine Run Dam No. 1 fails due to overtopping, the hazard to loss of life and property immediately downstream of the dam would be significantly increased from that which would exist just prior to the overtopping. Pine Run Dam No. 1 is classified as an unsafe non-emergency dam. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1980
- Accession Number
- ADA087887