National Program for Inspection of Non-Federal Dams. Tafville Reservoir Number 2 Dam (CT 00201), Thames River Basin, Norwich, Connecticut. Phase I Inspection Report.
CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV
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Taftville Reservoir No. 2 Dam is a zoned embankment about 667 ft. long with a concrete core wall, is 16 ft. wide at the crest, and has a maximum height of about 30 ft. It has a combined drop inlet spillway and outlet tower structure. The outfall from the drop inlet is a 16 in. dia. pipe and the outlet pipe is a 12 in. dia. A trapezoidal notch in the crest of the dam serves as an auxiliary spillway. Maximum storage capacity of the reservoir is 110 acre-feet and the drainage area is 69 acres. The dam appears to be in good condition. The crest and downstream slope are covered with brush growth and there is some local displacement of rock fill and riprap. The outlet tower structure has been subject to vandalism, including demolition and removal of the concrete block tower house. Previous inspection reports noted seepage at the toe of the embankment near the 16 in. dia. spillway outfall pipe, but with the reservoir empty no seepage was evident on the date of this inspection. The drop inlet and auxiliary spillways are together adequate to pass the selected test flood of 12 PMF without overtopping the dam.
- Hydrology, Limnology and Potamology
- Civil Engineering