Marston Finn Conservation Dam is an earth dam located in Rockingham County, New Hampshire, built in 1778. It carries a Low hazard potential classification.
Dam profile
NID height · 14 ft14 ft tall and 193 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Marston Finn Conservation Dam
The primary purpose of Marston Finn Conservation Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Moeckel Pond Village District (private). It impounds the Golden Brook near Windham.
The dam stands 14 feet tall and stretches 193 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 263 acre-feet, and collects water from a drainage area of 12 square miles. Completed in 1778, 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. The most recent inspection on record was 10/02/2019.
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Location
| State | New Hampshire |
| County | Rockingham |
| Nearest City | Windham |
| River/Stream | Golden Brook |
| Coordinates | 42.76358, -71.30210 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 193 ft |
| Year Completed | 1778 (248 years old) |
Storage & Hydraulics
| NID Storage | 263 acre-ft |
| Max Storage | 263 acre-ft |
| Normal Storage | 168 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 12 sq mi |
| Max Discharge | 1,278 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Moeckel Pond Village District |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/02/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00915 |
| Federal ID | NH00915 |
| More Info | State Dam Safety Program |