National Program for Inspection of Non-Federal Dams. Tuller Resservoir Dam (CT 00275), Connecticut River Basin, Simsbury, Connecticut. Phase I Inspection Report.
CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV
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The Tuller Reservoir Dam is an earth embankment built about 1900 and impounding Hop Brook in Simsbury, Connecticut. The dam is approximately 240 feet in length not including spillway, seven feet wide at the top, 45.5 feet in height and has a maximum impoundment capacity of 175 acre-feet. The spillway is a concrete lined channel cut into bedrock at the right end of the dam. It consists of an 18 foot long, trapezoidal shaped concrete weir, a concrete training wall on the left side and a vertical rock cut on the right side. A gatehouse with a concrete foundation and brick superstructure is located at the central portion of the upstream slope. The low-level outlet is an 18 inch cast iron pipe extending through the gatehouse to the upstream slope. Three intake pipes allow water into a chamber in the gatehouse foundation which drains through the low-level outlet. The slopes and top of dam are covered with grass, dense brush, and tree saplings. A footpath extends along the top of the dam for the entire length. Based upon the visual inspection at the site and past performance of the dam, the project is judged to be in poor condition. There are areas requiring repair, maintenance and monitoring such as concrete deterioration, slope erosion, brush on the slopes and a seep on the downstream slope. Peak inflow to the reservoir at the test flood is 1750 cubic feet per second cfs and peak outflow is 1630 cfs with the dam overtopped 1.4 feet. The spillway capacity with the lake level to the top of the dam is 415 cfs, which is 25 of the routed test flood outflow.
- Hydrology, Limnology and Potamology
- Civil Engineering