U.S. Route 183 (US-183) is a part of the U.S. Highway System that runs from US-77 in Refugio, Texas north to Interstate 90 (I-90) in Presho, South Dakota. In the U.S. state of Kansas, US-183 is a main north–south highway that runs from the Oklahoma border north to the Nebraska border.

U.S. Route 400 is a 481.306-mile-long (774.587 km) mostly east–west U.S. Highway, commissioned in 1994. The highway's western terminus is in Granada, Colorado, at an intersection with US 385. The highway's eastern terminus is southwest of Joplin, Missouri, near Loma Linda, at an interchange with Interstate 44, with which it shares with US 166. It originally ended in Garden City, Kansas; in 1996 it was extended to its current western terminus.