Ashuelot Paper Mill Dam
Ashuelot Paper Mill Dam is a concrete dam located in Cheshire County, New Hampshire, built in 1910. It carries a Low hazard potential classification.
About Ashuelot Paper Mill Dam
The primary purpose of Ashuelot Paper Mill 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 Ashuelot River Hydro Inc (private). It impounds the Ashuelot River near Winchester.
The dam stands 18 feet tall and stretches 260 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 412 square miles. Completed in 1910, 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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Location
| State | New Hampshire |
| County | Cheshire |
| Nearest City | Winchester |
| River/Stream | Ashuelot River |
| Coordinates | 42.78970, -72.45550 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 260 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 38 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 412 sq mi |
| Max Discharge | 14,870 cfs |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | ASHUELOT RIVER HYDRO INC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 09/18/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00274 |
| Federal ID | NH00274 |
| More Info | State Dam Safety Program |