Blair Bridge crosses the Pemigewasset River near Campton, New Hampshire. It was built in 1869 and is 295' long. The original bridge was burned down by an arsonist in 1868 and rebuilt in 1869. The new bridge was heavily damaged when impaled by a tree branch during Tropical Storm Irene in 2011. It was repaired and reopened to traffic in 2015. This time, the weight limit was doubled to six tons per vehicle.