Uncanoonuc Lake Dam, located in Goffstown, New Hampshire, stands as a vital structure for recreation and water resource management in the region.
Wind
Humidity
Built in 1936, this earth dam with a height of 10 feet and a length of 176 feet, controls the flow of the Dan Little Brook, providing a surface area of 25.7 acres and a drainage area of 0.27 square miles. With a storage capacity of 318 acre-feet, the dam plays a crucial role in maintaining a normal storage level of 211 acre-feet for recreational activities.
Managed by the local government and regulated by the New Hampshire Department of Environmental Services Dam Bureau, Uncanoonuc Lake Dam has a Satisfactory condition assessment, despite being classified with a High hazard potential. It has an uncontrolled spillway type, with a spillway width of 4 feet and a maximum discharge capacity of 65.8 cubic feet per second. The dam undergoes regular inspections, with the last one conducted in October 2019, and has a moderate risk assessment rating of 3.
Overall, Uncanoonuc Lake Dam serves as a critical infrastructure for water resource management and recreational purposes in the Hillsborough County area of New Hampshire. Its historical significance, coupled with its ongoing regulatory oversight and maintenance, ensures the safety and sustainability of the surrounding environment while providing opportunities for outdoor activities and enjoyment for the local community and visitors alike.
Year Completed |
1936 |
Dam Length |
176 |
Dam Height |
10 |
River Or Stream |
DAN LITTLE BROOK |
Primary Dam Type |
Earth |
Surface Area |
25.7 |
Drainage Area |
0.27 |
Nid Storage |
318 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
10 |