National Program for Inspection of Non-Federal Dams. Nystrom Pond Dam (CT 00457) Naugatuck River Basin, Litchfield, Connecticut. Phase I Inspection Report.
Abstract
The Nystrom Pond Dam consists of a concrete, stone masonry and earth structure with a total length of 104 feet and a maximum height of 15 feet. The dam was originally constructed as a stone masonry wall with an upstream earth embankment. The concrete portion of the dam was constructed on and against the downstream face of the stone masonry wall in 1963. In 1969, the dam was raised approximately 2 feet and timber flashboards were replaced by a concrete wier. A downstream earth embankment is present against the left end of the dam. The outlet works located at the left end of the spillway consist of a 12-inch cast iron pipe through the dam controlled by an upstream gate. A 3 foot high earth and stone masonry dike is located approximately 500 feet south of the main dam on the west side of the pond. The main dam appears to be in fair condition and requires some work. The dike is in poor condition with very little freeboard or top width in some areas. The top of the dike is 2.5 feet lower than the crest of the dam. The spillway has a capacity of 60 cfs before overtopping the dike and 390 cfs at the crest of the dam.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1980
- Accession Number
- ADA144745
Entities
Organizations
- New England District, U.S. Army Corps of Engineers