The Bellows Falls Tunnel is a railroad tunnel located in center of the Village of Bellows Falls within the Town of Rockingham, Vermont, adjacent to the Connecticut River, and is currently owned and operated by the New England Central Railroad (NECR). The Vermont Valley Railroad originally constructed the tunnel in 1851. Partially cut through solid rock, the tunnel was built with rough-cut stone blocks, where each portal was decorated with radiating voussoirs around their horseshoe shaped arches. The stone blocks average about 18 inches deep as observed at the tunnel portals.