National Dam Inspection Program. Wright Lake Dam (NY 00757), Lower Hudson River Basin, City of Troy, Rensselaer County, New York. Phase I Inspection Report,
Abstract
Wright Lake Dam is an earthen embankment about 46 feet high, 350 feet long, and averaging about 54 feet wide at the crest. The dam has a drop inlet spillway located at about the middle of the dam. The drop inlet is part of a brick masonry and concrete control structure for the dam. On the upstream side of the control tower there are 3 slide gates (believed to be inoperable) at various elevations as well as a lower port planked shut, all inletting to a gate chamber in the control tower just upstream of the drop inlet. Between the gate chamber and the drop inlet shaft there appears to be an opening of some kind with a possible control mechanism. The opening between the gate chamber and drop inlet was not accessible or clearly observable. Hydrologic and hydraulic analysis indicates that maximum spillway discharge capacity is only about 11% of the PMF peak outflow. The 1/2 PMF would overtop the earth embankment and would probably cause failure. Therefore, in accordance with Corps of Engineers' screening criteria for review of spillway adequacy, spillway capacity is considered 'seriously inadequate.'
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 18, 1981
- Accession Number
- ADA105782
Entities
People
- Kenneth J. Male