Ashuelot Pond Dam
Ashuelot Pond Dam is a concrete dam located in Sullivan County, New Hampshire, built in 1872. It carries a High hazard potential classification and has a poor condition assessment.
About Ashuelot Pond Dam
The primary purpose of Ashuelot Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Ashuelot Pond Dam Village District (local government). It impounds the Ashuelot River near Washington.
The dam stands 13 feet tall and stretches 190 feet across, creates a reservoir covering 360 acres, has a maximum storage capacity of 3,588 acre-feet, and collects water from a drainage area of 26 square miles. Completed in 1872, the structure is one of the older dams in the region, with over a century and a half of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 07/12/2022.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The New Hampshire dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Hampshire |
| County | Sullivan |
| Nearest City | Washington |
| River/Stream | Ashuelot River |
| Coordinates | 43.15073, -72.15696 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 190 ft |
| Year Completed | 1872 (154 years old) |
Storage & Hydraulics
| NID Storage | 3,588 acre-ft |
| Max Storage | 3,588 acre-ft |
| Normal Storage | 2,760 acre-ft |
| Surface Area | 360 acres |
| Drainage Area | 26 sq mi |
| Max Discharge | 1,610 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | ASHUELOT POND DAM VILLAGE DISTRICT |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 07/12/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NH00237 |
| Federal ID | NH00237 |
| More Info | State Dam Safety Program |