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 50 Oklahoma State Highway 50 State Highway 50 (abbreviated SH-50) is a state highway in northeastern Oklahoma. The majority of the highway is in Woodward County, though the northernmost are in Woods County. SH-50 runs near two state parks and has a lettered spur that goes to each of them. State Highway 50 begins at US-183/270/SH-3 between Woodward and Mutual. Much of the first section of highway runs through the Moscow Flats area west of the North Canadian River. The highway crosses Indian Creek, a tributary of the North Canadian, before crossing the river itself. SH-50 intersects US-412 between Woodward and