National Dam Safety Program. Echo Lake Dam (NJ00133), Rahway River Basin, Norma Higgin Brook, Union County, New Jersey. Phase I Inspection Report.
Abstract
Echo Lake Dam is concrete gravity overflow structure approximately 20 feet high and 130 feet long. The structure ties in at both abutments wth concrete retaining walls. All exposed faces of the structure and retaining walls have been faced with cobble size stones set into the concrete. An ornamental waterwheel is located near the left abutment. A diversion channel is constructed from the impoundment about 20 feet upstream of the dam to the waterwheel. A reservoir drain structure is constructed in the right sidewall and abutment. The intake which extends into the impoundment is submerged. The 24-inch diameter ductile iron outlet pipe protrudes from the right side retaining wall about 7 feet downstream of the dam. The spillway discharges into a pool which is formed by a small dam (about five feet high and 32 feet long) located about 100 feet downstream of the Echo Lake Dam. A review of the hydrologic/hydraulic analyses indicates that the spillway is capable of passing about 13 percent of the PMF prior to overtopping the abutments.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1981
- Accession Number
- ADA103457
Entities
People
- John J. Williams
Organizations
- New Jersey Department of Environmental Protection