This railroad bridge was originally built and owned by the Chicago, Rock Island, & Pacific railroad and was part of the Golden State Route mainline. This bridge was built as part of a 1946 realignment through much of SE Iowa which reduced grades and mileage. The original bridge was several miles north, and I believe you can still see the stumps of the timbers sticking out of the river bottom. The original crossing location was just south of the present day Highway 2 bridge. The Rock Island went bankrupt and ceased operations in 1980.