Accession Number:

ADA099088

Title:

National Dam Inspection Program. Westcolang Lake Dam, NDI I.D. Number PA-00396 PennDER I.D. Number 52-4. Delaware River Basin. Westcolang Creek, Pike County, Pennsylvania. Phase I Inspection Report,

Descriptive Note:

Corporate Author:

GAI CONSULTANTS INC MONROEVILLE PA

Personal Author(s):

Report Date:

1981-03-01

Pagination or Media Count:

79.0

Abstract:

Based on visual inspection, operational history, and hydrologichydraulic analysis, the dam is considered to be in fair condition. The size classification of the facility is intermediate and its hazard classification is considered to be high. In accordance with the recommended guidelines, the Spillway Design Flood SDF for the facility is the PMF Probable Maximum Flood. Results of the hydrologic and hydraulic analysis indicate the facility will pass andor store only about 20 percent of the PMF prior to embankment overtopping. A breach analysis indicates that failure under 12 PMF conditions could lead to increased downstream damage and potential for loss of life. Thus, based on screening criteria provided in the recommended guidelines, the spillway is considered to be seriously inadequate and the facility unsafe, non-emergency.

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE