This bridge is known as the Chicago and Western Indiana Railroad Bridge or the Union Pacific Bridge. It is located in Riverdale, Illinois 12.15 miles from the Calumet Harbor. It crosses the Little Calumet River between the Bishop Ford Steel bridge and the Indiana Avenue Bridge. This is a polygonal Warren through truss with all verticals type of bridge. The largest span measures 269 feet. Total length is 395 feet. There is on main span The bridge is open.