Fiske Mill Hydro Dam

Fiske Mill Hydro Dam is a concrete dam located in Cheshire County, New Hampshire, built in 1922. It carries a Low hazard potential classification.

About Fiske Mill Hydro Dam

The primary purpose of Fiske Mill Hydro Dam is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Fiske Hydro Inc (private). It impounds the Ashuelot River near Hinsdale.

The dam stands 20 feet tall and stretches 200 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 90 acre-feet, and collects water from a drainage area of 420 square miles. Completed in 1922, the structure is over a century old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 09/18/2019.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateNew Hampshire
CountyCheshire
Nearest CityHinsdale
River/StreamAshuelot River
Coordinates42.78660, -72.48200

Physical Characteristics

Dam TypeConcrete
NID Height20 ft
Dam Height20 ft
Dam Length200 ft
Year Completed1922 (104 years old)

Storage & Hydraulics

NID Storage90 acre-ft
Max Storage90 acre-ft
Normal Storage50 acre-ft
Surface Area10 acres
Drainage Area420 sq mi

Ownership & Safety

PurposeHydroelectric
OwnerFISKE HYDRO INC
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection09/18/2019
Emergency Action PlanNot Required

Identifiers

NID IDNH00412
Federal IDNH00412
More InfoState Dam Safety Program

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