Long Pond Dam, located in Lempster, New Hampshire, stands as a vital structure along the TR Ashuelot River, serving primarily for recreational purposes.
Wind
Humidity
This concrete dam, completed in 1922, boasts a height of 10 feet and a length of 260 feet, with a storage capacity of 578 acre-feet. The dam is regulated and inspected by the NHDES Dam Bureau, ensuring its safety and compliance with state regulations.
With a low hazard potential and a satisfactory condition assessment, Long Pond Dam is a well-maintained structure that poses a moderate risk level. Despite its uncontrolled spillway type, the dam has proven to be reliable in managing the flow of the river, with a maximum discharge capacity of 895 cubic feet per second. The surrounding area offers a surface area of 120 acres for recreational activities, making it a popular destination for water resource and climate enthusiasts to enjoy the scenic beauty and outdoor adventures provided by this essential dam structure.
Year Completed |
1922 |
Dam Length |
260 |
Dam Height |
10 |
River Or Stream |
TR ASHUELOT RIVER |
Primary Dam Type |
Concrete |
Surface Area |
120 |
Drainage Area |
1.46 |
Nid Storage |
578 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
10 |