(from wikipedia)

The Half Chance Iron Bridge, also known as the Half-Chance Bridge, is a historic single span wrought iron bridge located near the small community of Half Chance, between the towns of Linden and Dayton in the U.S. state of Alabama. It is on Marengo County Road 39 over Chickasaw Bogue Creek. The bridge is the oldest surviving iron bridge in Alabama, making it an important transportation and engineering landmark for the state.

Half Chance Iron Bridge is a 12-foot (3.7 m) wide bowstring truss with a span of 100 feet (30 m). It was built by the King Iron Bridge Manufacturing Company of Cleveland, Ohio in 1880. King Iron Bridge Manufacturing Company was founded in 1871 by Zenas King. As early as 1878 it was manufacturing many types of truss, combination, and wooden bridges and by the 1880s it was the largest highway bridge works in the United States.