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 164 Oklahoma State Highway 164 State Highway 164 (abbreviated SH-164) is a state highway in north-central Oklahoma. It runs from SH-74 in Covington to U.S. Route 77 (US-77) west of Perry. SH-164 is long. It has no lettered spur routes. The route of SH-164 was initially served by US-64. The highway was assigned the SH-164 designation when US-64 was realigned around 1971. SH-164 begins on the southern fringes of Covington at a junction with SH-74. The highway heads east-southeast from this point, paralleling a rail line. About away from the terminus, the highway breaks away from the railroad, heading on a