Road Work on Route 12 in Walpole-Charlestown

The New Hampshire Department of Transportation (NHDOT) will resume work on the reconstruction and widening of three miles of NH Route 12, from the intersection of Main Street in North Walpole to the intersection of NH Route 12A in Charlestown, on Monday, April 5, 2021.

The work includes reconstruction of Route 12 to widen the roadway towards the Connecticut River, which will provide 11-foot lanes and four to five-foot wide shoulders.  The widened roadway will be the result of an armored slope along the Connecticut River, updated drainage and storm water management, substantial utility relocation, and guardrail installation.

Intermittent alternating one-way traffic will be in place during this project.  Motorists can expect delays due to lane shifts and construction equipment. Message boards and signs will be used to alert motorists of current conditions.

Most of the armored slope and utility relocation was completed in 2018, and 80 percent of the drainage improvements were completed in 2019. Approximately two miles of road reconstruction, including a 6.5 foot by 8.5 foot box culvert and a 66" diameter cross pipe, were replaced last year.

Sargent Corporation of Stillwater, Maine is the contractor for the $14.8 million project, which has a final completion date of August 12, 2021.