National Program for Inspection of Non-Federal Dams. Rocky Glen Dam (CT 00310), Housatonic River Basin, Newton, Connecticut. Phase I Inspection Report.
Abstract
The Rocky Glen Dam consists of a 100 foot long concrete ogee spillway section and a 30 foot long earth embankment section with an upstream concrete wall. The dam has a maximum height of 38 feet and appears to be founded on bedrock. A 48-inch diameter low level outlet of blowoff is located at the left end of the earth embankment and discharges through the right spillway training wall. An intake structure and canal are located at the right end of the dam and divert water from the impoundment to a downstream manufacturing plant where it was used to generate electricity and for manufacturing purposes. At the present time the manufacturing plant is not in operation. The physical condition of the dam is judged to be good. Erosion at the base of the right training wall and trees growing on the downstream embankment at the top of this wall require further attention. Due to the small size of the impoundment, the test flood outflow was assumed to equal the test flood inflow of 17,500 cfs and would overtop the dam by 7-1/2 feet. The spillway capacity with the water level at the top of the dam is equal to 2,500 cfs or 14% of the test flood. Therefore, the overall condition of the dam is judged to be fair, based on the inadequate spillway capacity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1980
- Accession Number
- ADA144076
Entities
Organizations
- New England District, U.S. Army Corps of Engineers