Monadnock is a private hydroelectric dam located in Bennington, New Hampshire, along the Contoocook River.
Wind
Humidity
Built in 1923, this concrete structure stands at a height of 22 feet and stretches 500 feet in length. With a storage capacity of 240 acre-feet and a drainage area of 190 square miles, Monadnock serves the dual purposes of hydroelectric power generation and water supply.
Managed by the Federal Energy Regulatory Commission, Monadnock has a low hazard potential and a moderate risk assessment rating. The dam features an uncontrolled spillway with a width of 165 feet and is equipped with a single slide (sluice gate) outlet gate. While the condition assessment is not available, the dam is inspected every three years, with the last inspection conducted in June 2017. Despite its age, Monadnock continues to operate within regulatory guidelines, showcasing its importance in water resource management and climate resilience efforts in the region.
Overall, Monadnock stands as a significant infrastructure contributing to the sustainable utilization of water resources in New Hampshire. With its historical significance, operational efficiency, and regulatory compliance, this hydroelectric dam serves as a vital component in the state's efforts to balance energy generation and water supply needs while mitigating climate-related risks. As enthusiasts in water resource and climate management, Monadnock's role in supporting the region's environmental sustainability efforts is both fascinating and commendable.
Year Completed |
1923 |
Dam Length |
500 |
Dam Height |
22 |
River Or Stream |
Contoocook River |
Primary Dam Type |
Concrete |
Surface Area |
4 |
Drainage Area |
190 |
Nid Storage |
240 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Low |
Nid Height |
22 |