Quassett Lake Road Dam

About Quassett Lake Road Dam

The primary purpose of Quassett Lake Road Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Quasset Lake District (private). It impounds the Mill Brook Trib near Woodstock.

The dam stands 14 feet tall and stretches 320 feet across, creates a reservoir covering 91 acres, has a maximum storage capacity of 478 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1855, 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 04/20/2021.

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