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 29 in Elmore City. SH-29 next meets Interstate 35 at its Exit 66. Soon after passing under the Interstate, SH-29 meets U.S. Highway 77, and the two highways overlap over the Washita River into Wynnewood. US-77 splits off in downtown Wynnewood, and SH-29 continues eastward for 12 more miles before ending at US-177. SH-29's single lettered spur is SH-29A, which runs for to the small town of Foster. Oklahoma State Highway 29 State Highway 29 (abbreviated SH-29) is an east–west state highway in the U.S. state of Oklahoma. It runs for through Stephens Co. and Garvin Co., and has one lettered