River Street

About River Street

The primary purpose of River Street is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Sanford (local government). It impounds the Mousam near Sanford.

The dam stands 17 feet tall and stretches 410 feet across, creates a reservoir covering 66 acres, has a maximum storage capacity of 516 acre-feet, and collects water from a drainage area of 39 square miles. Completed in 1870, the structure is one of the older dams in the region, with over a century and a half of service.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 12/20/2016.

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