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 72 Oklahoma State Highway 72 State Highway 72 (abbreviated SH-72 or OK-72) is a state highway in the U.S. state of Oklahoma. It runs from north to south through the east-central part of the state, with a length of almost 33 miles (53 km). It does not have any lettered spur routes. SH-72 begins at U.S. Highway 266 west of Checotah and heads north, passing through Council Hill after 4 miles (6.4 km). Two miles south of Boynton, it meets US-62, which it starts a duplex with. Past Boynton, it has a junction with US-64 and SH-16; US-62 splits off of