National Dam Safety Program. Rock Island Lake Dam (NJ 00819) Wallkill River Basin, Rock Island Lake, Sussex County, New Jersey. Phase I Inspection Report.
Abstract
This report cites results of a technical investigation as to the dam's adequacy. The inspection and evaluation of the dam is as prescribed by the National Dam Inspection Act, Public Law 92-367. The technical investigation includes visual inspection, review of available design and construction records, and preliminary structural and hydraulic and hydrologic calculations, as applicable. An assessment of the dam's general condition is included in the report. Based on visual inspection, available records, calculations and past operational performance, Rock Island 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 25 percent of the Spillway Design Flood (SDF) would cause the dam to be overtopped.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1981
- Accession Number
- ADA103756
Entities
People
- Warren A. Guinan
Organizations
- New Jersey Department of Environmental Protection