OK 4 may also refer to Oklahoma’s 4th congressional district. State Highway 4, abbreviated as SH-4 or OK-4, is a designation for two distinct highways maintained by the U. One of them serves as an important route through the suburbs west of Oklahoma City, while the other connects US-259 to the Arkansas state line west of Cove, Arkansas. SH-4 has no lettered spur routes.
The two SH-4s were never connected. The Central Oklahoma highway was established in 1941 and gradually extended to its present extent between then and 2003. The Eastern Oklahoma highway was originally numbered SH-21, and was renumbered to SH-4 in 1963.