 The mills were finally shut down in 1940.The stretch of Main Street on which the mill village is centered was historically a major through road, which was first bypassed by the present alignment of Connecticut Route 83, and then truncated by the major construction work in the 1980s widening Interstate 84.The district's principal features extend along Main Street from CT 83 to where the road crosses the Tankerhoosen River (on a late 19th-century lenticular truss bridge built by the Berlin Iron Bridge Company).