Wilson Pond Dam
Wilson Pond Dam is an earth dam located in Cheshire County, New Hampshire, built in 1920. It carries a Significant hazard potential classification and has a poor condition assessment.
About Wilson Pond Dam
The primary purpose of Wilson Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Keene School District (local government). It impounds the Ash Swamp Brook near Keene.
The dam stands 8 feet tall and stretches 200 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 69 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1920, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/23/2021.
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Location
| State | New Hampshire |
| County | Cheshire |
| Nearest City | Keene |
| River/Stream | Ash Swamp Brook |
| Coordinates | 42.93830, -72.32130 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 200 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 69 acre-ft |
| Max Storage | 69 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 3,681 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | CITY OF KEENE SCHOOL DISTRICT |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 09/23/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NH02231 |
| Federal ID | NH02231 |
| More Info | State Dam Safety Program |