Mountain Pond Dam is an earth dam located in Hillsborough, New Hampshire, built in 1930. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 13 ft13 ft tall and 175 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 Mountain Pond Dam
The primary purpose of Mountain Pond Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by New England Forestry Found (private). It impounds the Millers River near New Ipswich.
The dam stands 13 feet tall and stretches 175 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 154 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1930, the structure is well-established, with more than 75 years 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 11/14/2017.
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Location
| State | New Hampshire |
| County | Hillsborough |
| Nearest City | New Ipswich |
| River/Stream | Millers River |
| Coordinates | 42.74880, -71.93007 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 175 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 154 acre-ft |
| Max Storage | 154 acre-ft |
| Normal Storage | 59 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 348 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | New England Forestry Found |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 11/14/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00357 |
| Federal ID | NH00357 |
| More Info | State Dam Safety Program |