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 19 77 in Pauls Valley. After passing through the Pauls Valley area, SH-19 crosses U.S. Highway 177 west of Stratford, Oklahoma. It then ends, concurrent with SH-3W at the Richardson Loop outside of Ada. SH-19 has two lettered spurs. Oklahoma State Highway 19 State Highway 19, abbreviated as SH-19, is a highway running through the southern part of the U.S. state of Oklahoma. It is signed east–west. SH-19 begins at an intersection with US-283 in Blair, Oklahoma. SH-19 heads east from Blair for 23 miles (37 km) without intersecting another highway before meeting U.S. Highway 183 north of Roosevelt. It continues