National Dam Inspection Program. Lewis Lake Dam (NDI-ID Number PA-00061, DER-ID Number 58-7), Susquehanna River Basin, Susquehanna County, Pennsylvania. Phase I Inspection Report,

Abstract

Based on the visual inspection, past performance and the available engineering data, the dam and its appurtenant structures appear to be in fair condition. In accordance with the Corps of Engineers' evaluation guidelines, the size classification of this dam is small and the hazard classification is high. These classifications indicate that the Spillway Design Flood (SDF) should be in the range of one-half the Probable Maximum Flood (PMF) to the full PMF. The recommended SDF for this structure is one-half the PMF. The spillway capacity is adequate for passing only 10 percent of the PMF peak inflow without overtopping the dam. The spillway is considered to be seriously inadequate. The dam is therefore unsafe, non-emergency.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1980
Accession Number
ADA091595

Entities

People

  • Hendrik Jongsma

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Computer Programs
  • Concrete
  • Construction
  • Dams
  • Drainage Basins
  • Embankments
  • Engineering
  • Engineers
  • Flood Control
  • Floods
  • Gates
  • Groundwater
  • Retaining Walls
  • Safety Analysis
  • United States
  • Visual Inspection
  • Warning Systems

Readers

  • Hydrologic Risk Analysis and Mitigation.