Hollingsworth & Vose Company Dam is an earth dam located in Middlesex County, Massachusetts, built in 1900. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 17 ft17 ft tall and 150 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 Hollingsworth & Vose Company Dam
Hollingsworth & Vose Company Dam is a dam in Middlesex, Massachusetts. The dam is owned by Hollingsworth & Vose Company (private). It impounds the Squannacook River near Groton.
The dam stands 17 feet tall and stretches 150 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 350 acre-feet, and collects water from a drainage area of 68 square miles. Completed in 1900, 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 11/07/2014. That was over 11 years ago.
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Location
| State | Massachusetts |
| County | Middlesex |
| Nearest City | Groton |
| River/Stream | Squannacook River |
| Coordinates | 42.61245, -71.63517 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Length | 150 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 350 acre-ft |
| Max Storage | 350 acre-ft |
| Normal Storage | 156 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 68 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Hollingsworth & Vose Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 11/07/2014 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA00443 |
| Federal ID | MA00443 |
| More Info | State Dam Safety Program |