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 87 the early 1960s, SH-87's length was at its zenith, as the highway stretched from Idabel to the Arkansas state line. However, on 1963-01-07, US-259 was established. The section of SH-87 from Idabel through Harris was turned over to the new U.S. route, setting the western terminus of the highway to its present-day location. Oklahoma State Highway 87 State Highway 87 is a highway in southeastern Oklahoma, running for . It passes through the extreme southeastern corner of the state, running entirely through McCurtain Co.. It has no lettered spur routes. SH-87 begins at an intersection with US-259 near the unincorporated