National Program for Inspection of Non-Federal Dams. Elmville Dam (CT 00165), Thames River Basin, Killingly, Connecticut. Phase I Inspection Report.
CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV
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Elmville Dam is a composite masonry and earth dam consisting of an unmortared stone overflow section and an earth fill right abutment dike, with an abandoned diversion canal and gate at the right end of the dike. The entire length of the dam is about 200 ft. The reservoir is about 800 ft. long and has a surface area at spillway level of about 1.8 acres. The drainage area above the dam is about 14 sq. mi. and the maximum storage to the top of dam is estimated at about 26 acre-ft. The dam is judged to be in generally fair condition. There is no low level outlet. There is considerable tree growth on the dike, which has no riprap protection on the upstream slope. The right training wall does not adequately retain the end of the dike and sloughing has occurred in this area. A sewer line has recently been constructed through the earth dike at midspan and it appears that no seepage cutoffs were installed along the sewer. The canal passing through the right abutment dike is obstructed with demolition debris and the gate at its entrance is not operative.
- Hydrology, Limnology and Potamology
- Civil Engineering