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 39 in 1968 or 1969, when SH-99 was rerouted to bypass Konawa, and SH-39 was extended east of town to end at the present junction. No changes have been made since. SH-39 once had one spur route, SH-39B. It ran along what is now May Avenue from SH-39's junction with SH-59 to SH-74B east of Cole, Oklahoma. Oklahoma State Highway 39 State Highway 39, abbreviated as SH-39, is a state highway in the U.S. state of Oklahoma. It is in length. It runs east–west through the central part of the state, beginning at unincorporated Tabler, east of Chickasha, and ending east