Bridge 650 was a limestone-and-concrete bridge in rural Barton County in the state of Kansas in the Midwestern United States. The bridge was built by the Works Projects Administration in 1938–40. It was used into the 21st century, and in 2008 was listed in the National Register of Historic Places. However, it was later found inadequate for the volume and weight of traffic that it carried, and demolished in 2016 or 2017. It was delisted in 2018.