The Shelby Iron Company Railroad was an Alabama railroad company that started during the American Civil War. The Shelby Iron Company Railroad was built to connect the Shelby Iron Company in Shelby, Alabama, to the Alabama and Tennessee River Railroad at Columbiana, Alabama, a distance of about five miles (8 km). It was a 5 ft (1,524 mm) gauge railroad line which was converted to 4 ft 9 in (1,448 mm) in 1886