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 52 been decommissioned. Oklahoma State Highway 52 State Highway 52 (abbreviated SH-52) is two once-connected highways in the U.S. state of Oklahoma. There are no lettered spur routes from either of them. The southern SH-52 is a short, state highway in McIntosh County, Oklahoma. It connects State Highway 9 to the town of Hanna. The northern SH-52 runs for from US-266 northeast of Grayson to SH-16. Along the way it intersects US-62 near Morris. At one time, at least as recently as 1972, the two sections of SH-52 were connected by a dirt section running from SH-9 to US-266. This section