Beaver Brook Dam
Beaver Brook Dam is a stone dam located in Rockingham County, New Hampshire, built in 1929. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Beaver Brook Dam
The primary purpose of Beaver Brook Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Derry (local government). It impounds the Beaver Brook near Derry.
The dam stands 7 feet tall and stretches 150 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 107 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1929, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/03/2019.
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Location
| State | New Hampshire |
| County | Rockingham |
| Nearest City | Derry |
| River/Stream | Beaver Brook |
| Coordinates | 42.89520, -71.30720 |
Physical Characteristics
| Dam Type | Stone |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 150 ft |
| Year Completed | 1929 (97 years old) |
Storage & Hydraulics
| NID Storage | 107 acre-ft |
| Max Storage | 107 acre-ft |
| Normal Storage | 67 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 11 sq mi |
| Max Discharge | 1,572 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | TOWN OF DERRY |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/03/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00436 |
| Federal ID | NH00436 |
| More Info | State Dam Safety Program |