Winding Brook Road Dam, located in Londonderry, New Hampshire, is a privately owned concrete dam built in 1980 for recreational purposes on the Beaver Brook.
Wind
Humidity
The dam stands at a height of 8 feet and has a length of 140 feet, with a storage capacity of 9.95 acre-feet. Despite its recreational use, the dam is also state-regulated by the NHDES Dam Bureau, with inspections and enforcement measures in place to ensure its safety and compliance with regulations.
The dam's spillway, with a width of 28 feet, is uncontrolled, posing a significant hazard potential and currently assessed as being in poor condition. The last inspection in August 2017 revealed a need for improvement, with a risk assessment rating of moderate. It is vital that the dam owner takes necessary measures to address the dam's condition and reduce the risk to downstream communities and the environment. With its proximity to residential areas and the potential impact of failure, the Winding Brook Road Dam serves as a reminder of the importance of proper maintenance and management of water resources in the face of changing climate conditions.
Year Completed |
1980 |
Dam Length |
140 |
Dam Height |
8 |
River Or Stream |
TR BEAVER BROOK |
Primary Dam Type |
Concrete |
Surface Area |
2.5 |
Drainage Area |
2.18 |
Nid Storage |
9.95 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
8 |
Beaver Brook At North Pelham
|
10cfs |
Spicket River At North Salem
|
4cfs |
Souhegan River At Merrimack
|
69cfs |
Merrimack R Nr Goffs Falls
|
1310cfs |
Spicket River Near Methuen
|
12cfs |
Piscataquog River Near Goffstown
|
78cfs |