National Program for Inspection of Non-Federal Dams. Lake Garda Dam (CT 00264), Connecticut River Basin, Farmington, Connecticut. Phase I Inspection Report.
Abstract
The dam is an earth embankment approximately 300 feet long, the top of which is about 17 feet above the bed of Unionville Brook. A concrete corewall runs along the axis of the dam and ties in with the spillway training walls. The crest varies in width from 40 to 90 feet, and is sparsely covered with grass. Several large trees are growing near the downstream edge of the crest. The concrete spillway crest, at the right end of the dam, is 29.5 feet long and about 3 feet below the lowest part of the top of the dam. The low level outlet is a 24 inch pipe through the dam controlled by a gate operated by a hand wheel floor stand located in a concrete block gatehouse on the upstream slope. Based upon the visual inspection at the site and past performance, the dam is judged to be in poor condition. No evidence of structural instability was observed in the earth embankment, other than minor surface sloughing. Deterioration near the base of the right spillway training wall could have become a stability concern, but was repaired during the spring of 1979. Areas requiring attention include trees on the downstream slope and seeps at several locations along the toe of the downstream slope. Based on our hydraulics computations, the spillway capacity is 463 cfs, which is equivalent to approximately 20% of the routed test flood outflow.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1979
- Accession Number
- ADA144085
Entities
Organizations
- New England District, U.S. Army Corps of Engineers