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 17A of the highway belongs to Garvin County, while land south of the highway falls into Murray County. The route ends at an intersection with US-77 south of Wynnewood. SH-17A first appeared on the 1983 official state map. The highway's route was identical to the present-day route; no changes have occurred since its commissioning. Oklahoma State Highway 17A State Highway 17A (SH-17A) is a long long state highway in south-central Oklahoma. It connects Interstate 35 (I-35) to U.S. Route 77 (US-77) near Wynnewood. It does not connect to its implied parent, State Highway 17. SH-17A was established around 1982, and has