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New Hampshire Department of Environmental Services

Suncook River Watershed

Aerial of Gravel Pit AvulsionAn extreme rain event occurred on May 15 and 16, 2006, in New Hampshire, which resulted in a state-wide flood. The Suncook River, which flows southwest towards the Merrimack River from its headwaters at Crystal Lake in Gilmanton, experienced a 100-year flood event. The high flood waters caused the Suncook River to change course (an event known as an “avulsion”) in the town of Epsom near the Huckins Mill Dams, upstream of Bear Island. This page provides information on the avulsion’s aftermath and the collaborative measures taken by municipal, state, federal and non-profit organizations to develop strategies for protecting public safety and the environment within the Suncook River corridor.

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NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm

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