Potash Pond Dam, located in Windham, Connecticut, is a historic masonry dam built in 1880 for recreational purposes along the Spotash Brook.
Wind
Humidity
With a height of 20.5 feet and a length of 200 feet, this dam provides storage of up to 96 acre-feet of water, serving a drainage area of 2.98 square miles. The dam has a significant hazard potential, with a maximum discharge capacity of 840 cubic feet per second and an uncontrolled spillway width of 55 feet.
Despite being privately owned, Potash Pond Dam is regulated by the Connecticut Department of Energy and Environmental Protection (DEEP) and undergoes regular inspections, with the last recorded inspection dating back to May 1996. The dam's condition is currently not rated, and it has not been assessed for emergency action planning. While the dam is considered to have a moderate risk level, there are no specific risk management measures outlined for this structure. Water resource and climate enthusiasts may find Potash Pond Dam's historical significance and recreational purpose intriguing, as it continues to provide storage and flood control benefits to the local community.
Year Completed |
1880 |
Dam Length |
200 |
Dam Height |
20.5 |
River Or Stream |
SPOTASH BROOK |
Primary Dam Type |
Masonry |
Surface Area |
7 |
Drainage Area |
2.98 |
Nid Storage |
96 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Nid Height |
21 |
Shetucket River Near Willimantic
|
702cfs |
Natchaug River At Willimantic
|
320cfs |
Willimantic River Near Coventry
|
161cfs |
Little River Near Hanover
|
44cfs |
Mount Hope River Near Warrenville
|
38cfs |
Yantic River At Yantic
|
105cfs |