Winding Brook Road Dam
Winding Brook Road Dam is an earth dam located in Rockingham County, New Hampshire, built in 1980. It carries a Significant hazard potential classification and has a poor condition assessment.
About Winding Brook Road Dam
The primary purpose of Winding Brook Road 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 Century Comm Assoc (private). It impounds the Tr Beaver Brook near Londonderry.
The dam stands 8 feet tall and stretches 140 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 9 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1980, the structure is 46 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/20/2021.
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Location
| State | New Hampshire |
| County | Rockingham |
| Nearest City | Londonderry |
| River/Stream | Tr Beaver Brook |
| Coordinates | 42.86064, -71.35871 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 140 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 9 acre-ft |
| Max Storage | 9 acre-ft |
| Normal Storage | 4 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 340 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | CENTURY COMM ASSOC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 09/20/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NH02374 |
| Federal ID | NH02374 |
| More Info | State Dam Safety Program |