There are three bridges carrying Hopyard Road over several brooks within Devil's Hopyard State Park in the U.S. state of Connecticut. The main route of SSR 434 follows the Eightmile River and the bridges cross over its minor tributaries. All three bridges are listed on the National Register of Historic Places . The three bridges are essentially identical masonry arch bridges, 38ft long, with a roadbed 22ft wide. All three were constructed between 1933 and 1937, in part by Civilian Conservation Corps crews, and in part with funding from the federal Works Progress Administration jobs program. All three bridges were rehabilitated in 1988, capping the arch with concrete and a waterproof membrane before restoring the roadbed.