National Dam Inspection Program. Lake Choctaw Dam (NDS ID-00819, DER ID54-178) Susquehanna River Basin, Little sugarloaf Creek, Schuykill County, Pennsylvania. Phase I Inspection Report.
Abstract
Based on the visual inspection, available records, calculations and past operational performance, Lake Choctaw Dam is judged to be in good condition. However, the spillway will not pass the Probable Maximum Flood (PMF) or one-half of the PMF without overtopping. If Lake Choctaw Dam should fail due to overtopping, the hazard to loss of life downstream from the dam would be significantly increased from that which would exist just prior to overtopping. Based on criteria established for these studies by the Department of the Army, Office of the Chief of Engineers (OCE), the spillway capacity is rated as seriously inadequate. The existing spillway can accommodate a flood with a peak inflow of 47 percent of the PMF peak flow. If the low areas of the top of embankment were brought up to grade, the spillway would accommodate a flood with a peak inflow of 61 percent of the PMF peak inflow, and the spillway would then be rated as inadequate instead of seriously inadequate. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1978
- Accession Number
- ADA068851