National Dam Inspection Program. Lake Henry Dam (NDI ID Number PA-00154, DER ID Number 64-34), Delaware River Basin, Tributary to Jones Creek, Wayne County, Pennsylvania. Phase I Inspection Report,

Abstract

According to criteria established for these studies, Lake Henry Dam is classified as unsafe, nonemergency, because of the seriously inadequate spillway capacity, the significant seepage, and the whirlpools that have reportedly developed previously in the lake. The recommended Spillway design Flood (SDF) for the size and hazard category of the dam is the Probable Maximum Flood (PMF). The existing spillways can pass about 19 percent of the PMF before overtopping of the dam occurs. It is judged that the dam would fail during the 1.2 PMF. Failure of the dam would increase the hazard to loss of life downstream. As a whole, the dam is judged to be in poor condition.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1980
Accession Number
ADA091446

Entities

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  • Frederick Futchko

Tags

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  • Air Platforms
  • Human Systems

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Concrete
  • Construction
  • Construction Equipment
  • Dams
  • Delaware
  • Delaware River
  • Drainage Basins
  • Elevation
  • Embankments
  • Engineering
  • Engineers
  • Topography
  • United States
  • Visual Inspection
  • Warning Systems

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  • Hydrologic Risk Analysis and Mitigation.