The Onion Creek Bridge was built in 1911 near Coffeyville, Kansas. The pin-connected steel Parker through-truss bridge is long. It is unusual in possessing vertical end posts, one of only two such bridges in Kansas. The bridge retains its design integrity. The Onion Creek Bridge was placed on the National Register of Historic Places in 1990. See also List of bridges documented by the Historic American Engineering Record in Kansas References External links Road bridges on the National Register of Historic Places in Kansas Bridges completed in 1911 Buildings and structures in Montgomery County, Kansas Historic American Engineering Record in Kansas 1911 establishments in Kansas National Register of Historic Places in Montgomery County, Kansas Steel bridges in the United States Parker truss bridges in the United States