Oklahoma State Highway 9
| Route information | ||||
|---|---|---|---|---|
| Maintained by ODOT | ||||
| Length | 348.1 mi (560.2 km) | |||
| Existed | August 24, 1924–present | |||
| Major junctions | ||||
| West end | SH 203 at the Texas state line | |||
| East end | I-540 / US 271 at the Arkansas state line | |||
| Location | ||||
| Country | United States | |||
| State | Oklahoma | |||
| Highway system | ||||
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State Highway 9, abbreviated as SH-9, OK-9, or simply Highway 9, is a major east–west highway in the U.S. state of Oklahoma. Spanning across the central part of the state, SH-9 begins at the Texas state line west of Vinson, Oklahoma, and ends at the Arkansas state line near Fort Smith, Arkansas. State Highway 9 is a major highway around the Norman area. At 348.1 miles (560.2 km), SH-9 is Oklahoma's second-longest state highway (second to State Highway 3).