Pawtuckaway Lake /drowns Dam

About Pawtuckaway Lake /drowns Dam

The primary purpose of Pawtuckaway Lake /drowns Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Nh Des Water Division (state). It impounds the Tr Bean River near Nottingham.

The dam stands 18 feet tall and stretches 235 feet across, creates a reservoir covering 900 acres, has a maximum storage capacity of 11,700 acre-feet, and collects water from a drainage area of 21 square miles. Completed in 1842, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 03/26/2020.

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