Wallum Lake

About Wallum Lake

The primary purpose of Wallum Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Ri Hillcroft, Inc. (local government). It impounds the Clear River near Burrillville.

The dam stands 10 feet tall and stretches 80 feet across, creates a reservoir covering 322 acres, has a maximum storage capacity of 10,000 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1866, 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.

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