Oklahoma State Highway 4 Oklahoma State Highway 4 State Highway 4, abbreviated as SH-4 or OK-4, is a designation for two distinct highways maintained by the U.S. state of Oklahoma. 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
Oklahoma State Highway 5 Oklahoma State Highway 5 State Highway 5 (SH-5 or OK-5) is the name assigned to two distinct state highways in the U.S state of Oklahoma. One runs for through extreme southwestern Oklahoma, passing through Harmon and Jackson Counties. The other is long and runs through southwest Oklahoma, connecting US-283 south of Altus to US-70 at Waurika. The western SH-5 begins at U.S. Highway 62 in Gould, Oklahoma and runs south until just past Lincoln, where it turns east. It then ends at State Highway 6 in Eldorado, just seven miles (11 km) north of the Texas border. The western SH-5