This bridge over the Sudbury River is constructed entirely of wood. As beautiful as it is to look at, especially when water levels are high, it is even more interesting to listen to. When cars cross it the entire structure shakes and the sound of tires rolling over the deck timbers elicits a rhythmically mesmerizing salute to times gone by. The tune changes constantly with the number, size, speed and direction of vehicles crossing this conduit between Lincoln and Sudbury.