Elmville Dam

Elmville Dam is an earth dam located in Windham County, Connecticut, built in 1900. It carries a Significant hazard potential classification and has a fair condition assessment.

About Elmville Dam

The primary purpose of Elmville Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Killingly (local government). It impounds the Whetstone Brook near Elmville.

The dam stands 7 feet tall and stretches 200 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 26 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1900, the structure is over a century old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/30/2014. That was over 11 years ago.

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Significant HazardFair ConditionEmergency Action Plan: No

Location

StateConnecticut
CountyWindham
Nearest CityElmville
River/StreamWhetstone Brook
Coordinates41.83273, -71.87267

Physical Characteristics

Dam TypeEarth
NID Height7 ft
Dam Height7 ft
Dam Length200 ft
Year Completed1900 (126 years old)

Storage & Hydraulics

NID Storage26 acre-ft
Max Storage26 acre-ft
Normal Storage14 acre-ft
Surface Area1 acres
Drainage Area13 sq mi
Max Discharge3,000 cfs

Ownership & Safety

PurposeRecreation
OwnerTown of Killingly
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection09/30/2014
Emergency Action PlanNo

Identifiers

NID IDCT00165
Federal IDCT00165
More InfoState Dam Safety Program

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