River Street Dam, located in Sanford, Maine, on the Mousam River, was completed in 1870 and serves primarily for recreational purposes.
Wind
Humidity
The dam, made of concrete and earth, stands at a height of 17 feet and has a hydraulic height of 12 feet, with a length of 410 feet. It has a storage capacity of 516 acre-feet and covers a surface area of 66 acres, drawing from a drainage area of 39 square miles.
Managed by the local government and regulated by the Maine Emergency Management Agency (MEMA), the River Street Dam is classified as having a significant hazard potential, with a fair condition assessment as of December 2016. The dam's inspection frequency is every six years, with the last inspection conducted in December 2016. With its historical significance and role in providing recreational opportunities, the River Street Dam remains a key feature along the Mousam River, contributing to the local environment and water resource management efforts in the region.
Year Completed |
1870 |
Dam Length |
410 |
Dam Height |
17 |
River Or Stream |
Mousam |
Primary Dam Type |
Concrete |
Surface Area |
66 |
Hydraulic Height |
12 |
Drainage Area |
39 |
Nid Storage |
516 |
Structural Height |
17 |
Hazard Potential |
Significant |
Nid Height |
17 |
Mousam River Near West Kennebunk
|
44cfs |
Cocheco River Near Rochester
|
24cfs |
Isinglass R At Rochester Neck Rd
|
26cfs |
Oyster River Near Durham
|
2cfs |
Saco River At Cornish
|
1020cfs |
Lamprey River Near Newmarket
|
42cfs |