Middle Hancock LLC Dam is an earth dam located in Hillsborough, New Hampshire, built in 1976. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 9 ft9 ft tall and 350 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 Middle Hancock LLC Dam
The primary purpose of Middle Hancock LLC 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 Highglee LLC (private). It impounds the Unnamed Brook near Peterborough.
The dam stands 9 feet tall and stretches 350 feet across, creates a reservoir covering 23 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 50 years old.
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 06/10/2019.
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Location
| State | New Hampshire |
| County | Hillsborough |
| Nearest City | Peterborough |
| River/Stream | Unnamed Brook |
| Coordinates | 42.90688, -71.96301 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 350 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 63 acre-ft |
| Surface Area | 23 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 700 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Highglee LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/10/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH02852 |
| Federal ID | NH02852 |
| More Info | State Dam Safety Program |