National Program for Inspection of Non-Federal Dams. Lake Chamberlain Dam (CT 00306), Quinnipiac River Basin, Bethany, Connecticut. Phase I Inspection Report.
Abstract
The dam is an earthen embankment, with a 53 foot high masonry rubble corewall, approximately 1300 feet in length and having a maximum height of 88 feet above the elevation of the original streambed. The maximum width at the top is 22 feet with the downstream slope having a maximum inclination of 2 horizontal to 1 vertical, and the upstream slope a 3 horizontal to 1 vertical maximum inclination, as indicated on the As-Built plans. The low level inlet is a 42 inch reinforced concrete pipe which feeds two 30 inch cast iron outlet pipes. The spillway is a 50 foot concrete ogee section located at the left end of the dam. Glen Lake Dam and populated areas of Woodbridge are located one and two miles downstream of the dam, respectively. Based upon visual inspection at the site and past performance, the dam is judged to be in good condition. No evidence of structural instability was observed, and the condition of the earthen embankment is good. However, there are some areas requiring monitoring and minor maintenance. Our hydraulics computations, indicate the spillway capacity is 8,100 cubic feet per second, which is in excess of 100 percent of the test Flood.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1978
- Accession Number
- ADA144290
Entities
Organizations
- New England District, U.S. Army Corps of Engineers