Clark Pond East Dam
Clark Pond East Dam is an earth dam located in Rockingham County, New Hampshire, built in 1811. It carries a Low hazard potential classification and has a fair condition assessment.
About Clark Pond East Dam
The primary purpose of Clark Pond East Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Manchester Water Works (local government). It impounds the Clark Pond Brook near Auburn.
The dam stands 8 feet tall and stretches 125 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 14 square miles. Completed in 1811, the structure is one of the older dams in the region, with over a century and a half of service.
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. 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 10/08/2020.
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Location
| State | New Hampshire |
| County | Rockingham |
| Nearest City | Auburn |
| River/Stream | Clark Pond Brook |
| Coordinates | 43.02080, -71.35220 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 125 ft |
| Year Completed | 1811 (215 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 14 sq mi |
| Max Discharge | 1,437 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | MANCHESTER WATER WORKS |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/08/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00227 |
| Federal ID | NH00227 |
| More Info | State Dam Safety Program |