National Dam Safety Program. Nelson Dam (Inventory Number VA 12501), James River Basin, Nelson County, Virginia. Phase I Inspection Report.

Abstract

The Dam is an earthfill structure about 738 feet long and 40.5 feet high. The dam is classified as 'intermediate' on the basis of size, and given a hazard classification of 'significant' on the basis of downstream area development. The principal spillway consists of an octagonally shaped concrete riser with eight rectangular openings serving as drop inlets. The emergency spillway is an open concrete channel cut at the right abutment. The spillway will pass 41 percent of the PMF or 82 percent of the SDF without overtopping the crest of the dam. The spillway is adjudged inadequate but not seriously inadequate. The visual inspection revealed no apparent problems and there are no immediate needs for remedial measures.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1981
Accession Number
ADA106330

Entities

People

  • Boris O. Taran

Organizations

  • Norfolk District, U.S. Army Corps of Engineers

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Computer Programs
  • Concrete
  • Construction
  • Contractors
  • Dams
  • Drainage Basins
  • Engineering
  • Engineers
  • Instrumentation
  • Materials
  • Observation
  • Safety
  • Spillways
  • Test And Evaluation
  • United States
  • Visual Inspection
  • Warning Systems

Readers

  • Electrical Engineering
  • Hydrologic Risk Analysis and Mitigation.