Harnett Pond Dam is a masonry dam located in Berkshire County, Massachusetts, built in 1909. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 14 ft14 ft tall and 131 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Harnett Pond Dam
The primary purpose of Harnett Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Devine Partners, Llc;ian Devine (private). It impounds the Harmon Brook near New Marlborough.
The dam stands 14 feet tall and stretches 131 feet across, creates a reservoir covering 34 acres, has a maximum storage capacity of 241 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1909, the structure is over a century 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 04/27/2009. That was over 17 years ago.
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Location
| State | Massachusetts |
| County | Berkshire |
| Nearest City | New Marlborough |
| River/Stream | Harmon Brook |
| Coordinates | 42.13065, -73.19746 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 14 ft |
| Dam Length | 131 ft |
| Year Completed | 1909 (117 years old) |
Storage & Hydraulics
| NID Storage | 241 acre-ft |
| Max Storage | 241 acre-ft |
| Normal Storage | 137 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Devine Partners, Llc;ian Devine |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/27/2009 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA00253 |
| Federal ID | MA00253 |
| More Info | State Dam Safety Program |