National Dam Safety Program. Johnson Lake Dam (NJ00499), Passaic River Basin, Tributary to Lubbers Run Brook, Sussex County, New Jersey. Phase 1 Inspection Report.

Abstract

Based on visual inspection, available records, calculations and past operational performance, Johnson Lake Dam, initially listed as a high hazard potential structure, but reduced to a significant hazard potential structure as a result of this inspection, is judged to be in fair overall condition. The dam's spillway is considered inadequate because a flow equivalent to seven percent of the Spillway Design Flood - SDF - would cause the dam to be overtopped. (The SDF, in this instance, is one half of the Probable Maximum Flood).

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1980
Accession Number
ADA087322

Entities

People

  • Warren A. Guinan

Organizations

  • New Jersey Department of Environmental Protection

Tags

Communities of Interest

  • C4I

DTIC Thesaurus Topics

  • Birds
  • Concrete
  • Construction
  • Dams
  • Drainage Basins
  • Engineering
  • Engineers
  • Environmental Protection
  • Flood Control
  • Gates
  • Inspection
  • New Jersey
  • Surveillance
  • Two Dimensional
  • Visual Inspection
  • Warning Systems
  • Water Resources

Readers

  • Hydrologic Risk Analysis and Mitigation.