Warren Lake Dam, located in Alstead, New Hampshire, was completed in 1771 and serves as a recreational site for the community.
Wind
Humidity
The earth dam stands at a height of 10 feet and spans 170 feet in length, creating a storage capacity of 1040 acre-feet. The dam, built on Warren Brook, has a surface area of 200.3 acres and a drainage area of 4.9 square miles.
Despite its historical significance, Warren Lake Dam is currently assessed to be in poor condition with a significant hazard potential. The dam is regulated by the New Hampshire Department of Environmental Services Dam Bureau, with state permitting, inspection, and enforcement in place. The last inspection took place in July 2017, with a scheduled frequency of every 4 years. The dam's spillway is uncontrolled with a width of 29 feet, allowing for a maximum discharge of 395 cubic feet per second.
With its moderate risk rating and the need for ongoing risk management measures, Warren Lake Dam remains a focal point for water resource and climate enthusiasts. The dam's historical legacy, coupled with its recreational importance, underscores the importance of ensuring its structural integrity and safety for the surrounding community.
Year Completed |
1771 |
Dam Length |
170 |
Dam Height |
10 |
River Or Stream |
WARREN BROOK |
Primary Dam Type |
Earth |
Surface Area |
200.3 |
Drainage Area |
4.9 |
Nid Storage |
1040 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
10 |