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,

Abstract

Based on visual inspection, operational history, and hydrologic/hydraulic 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 and/or store only about 20 percent of the PMF prior to embankment overtopping. A breach analysis indicates that failure under 1/2 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.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1981
Accession Number
ADA099088

Entities

People

  • Bernard M. Mihalcin

Organizations

  • GAI Consultants, Inc.

Tags

DTIC Thesaurus Topics

  • Classification
  • Construction
  • Dams
  • Delaware River
  • Drainage Basins
  • Embankments
  • Emergencies
  • Engineering
  • Engineers
  • Flood Control
  • Geological Surveys
  • Inspection
  • New York
  • Pennsylvania
  • United States
  • Visual Inspection
  • Warning Systems

Readers

  • Hydrologic Risk Analysis and Mitigation.