National Dam Safety program. Overpeck Tidal Dam (NJ00799), Hackensack River Basin, Overpeck Creek, Bergen County, New Jersey. Phase I Inspection Report

摘要

Overpeck Tidal Dam is located on Overpeck Creek in Ridgefield Borough, Bergen Country, New Jersey. Several small depressions up to 8 inches in diameter have developed in the asphalt surface which covers the top of the left cofferman, located along the downstream side the dam. Some erosion is occurring along the crest of the right cofferdam, which is bare of vegetation, and located on the downstream side of the dam. The steel stoplog supports are rusted at the waterline and the wood stoplogs are weathered. The concrete piers are surface eroded exposing the cause aggregate; and the steel sheeting along the upstream and downstream channel walls are rusted. The bascule gates, tainter gates and control building are all in excellent condition. No visible leakage was noted from any seal. The gates are operated automatically and were tested successfully. The emergency diesel generator was run and all instruments observed to be in working order. The generator is properly vented and housed in the control building.