Loon Lake Dam, also known as The Overflow, is a privately owned structure located in Croydon, Sullivan County, New Hampshire.
Wind
Humidity
Built in 1961, this earth dam stands at a height of 15 feet and has a length of 100 feet, serving primarily for recreational purposes. Situated on Long Pond Brook, the dam has a storage capacity of 328 acre-feet and a surface area of 57 acres, making it an important resource for water enthusiasts in the region.
Managed by the NHDES Dam Bureau, Loon Lake Dam is subject to state regulation, inspection, and enforcement to ensure its safety and functionality. The dam's hazard potential is considered significant, with a fair condition assessment as of August 2017. Despite moderate risk and a spillway type of "uncontrolled," the dam continues to provide recreational opportunities for visitors. With a risk management plan in place and regular inspections, the dam is maintained to meet safety guidelines and protect the surrounding area from potential inundation.
For water resource and climate enthusiasts, Loon Lake Dam offers a fascinating case study of a privately owned earth dam that not only serves recreational purposes but also plays a crucial role in managing water resources in Sullivan County, New Hampshire. With its unique design and significant hazard potential, the dam highlights the importance of proper regulation, inspection, and risk management measures to ensure the safety and sustainability of such structures in the face of changing climate conditions.
Year Completed |
1961 |
Dam Length |
100 |
Dam Height |
15 |
River Or Stream |
LONG POND BROOK |
Primary Dam Type |
Earth |
Surface Area |
57 |
Drainage Area |
8 |
Nid Storage |
328 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
15 |