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 System of Higher Education eligible college expenses. Annual contributions of up to $10,000 per taxpayer are deductible from Oklahoma taxable income. OneNet The Oklahoma Legislature established OneNet in 1992, building upon and succeeding the televised instruction system operated by the State Regents, with the approval of a statewide capital bond issue that provided $14 million for the implementation of a statewide telecommunications network. OneNet operates hub sites throughout Oklahoma to provide the infrastructure to support a high-speed telecommunications network with an equitable rate structure. OneNet's state-of-the-art technology and dedicated staff currently provide high-speed communications to a variety of Oklahoma entities, such as public and