The ECS Bridge over Big Goose Creek was a bridge near Sheridan, Wyoming, that was built in 1914. It was a Prattpony truss bridge built by the Canton Bridge Company of Canton, Ohio. The Canton Bridge Company built four steel bridges in Wyoming in 1914; when nominated to the National Register of Historic Places in 1982, the ECS Bridge was the only one of these surviving in its original location.[2] It was 50 feet (15 m) long and 15 feet (4.6 m) wide.[2]: 7
It was one of 171 Wyoming bridges surveyed in a study that led to the nomination of 31 of them for NRHP listing.[2] The ECS bridge was listed on the National Register of Historic Places (NRHP) in 1985.[1]
Two other Canton Bridge Company bridges in Wyoming are also listed on the NRHP: