In 1860, Dayton voted to build at Union Falls a covered bridge, long and wide, connecting to Buxton. The span was blown up in 1921 by the Clark Power Company, an event filmed as part of a melodrama by the Pine Tree Moving Picture Corporation of Portland. The Great Fires of 1947 destroyed two-thirds of Dayton, including 27 homes, 4 barns and the town hall. In 1951, the Central Maine Power Company built a hydroelectric dam between Salmon Falls and Union Falls, submerging the scenic gorge. Once a community of dairy farms, Dayton is now primarily residential.