A bill that would make it easier for landowners to control flooding from beaver dams is heading to Gov. Chris Sununu’s desk.

The New Hampshire House and Senate have both approved the “beaver deceiver” proposal.

The bill says towns and landowners generally don’t need a state permit to install fences and pipes around beaver dams.

Sara Persechino / Hopkinton Select Board

An ongoing struggle with a beaver dam in Hopkinton will land in the state legislature this session.

Hopkinton select board chair Jim O'Brien says the town has been trying for more than a year to stop a beaver dam from flooding a local back road.


The state is testing a new way to keep beavers from clogging up culverts and flooding roads.

Engineers from the Department of Transportation have installed two “"beaver deceivers" on Route 28 in Londonderry, just east of Manchester-Boston Regional Airport. 

Photo by Manual Crank via Flickr Creative Commons

Monday evening a torrent of water surprised drivers heading home on Route 4 in Epsom. Officials say the culprit was a failed beaver dam.

Flooding on New Hampshire roads because of beaver dams usually occurs when the critters' do their jobs so well that water backs up down stream. It's more unusual to have a ruptured beaver dam lead to flooding, says New Hampshire Department of Transportation spokesman Bill Boynton.