List of Interstate Highways in Oklahoma
Interstate Highways in Oklahoma form a network of freeways that cross the state. Several of them incorporated existing or already-planned turnpikes and continue to be maintained by the Oklahoma Turnpike Authority.
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
| I-35 | 235.96 | 379.74 | Texas state line south of Thackerville | Kansas state line north of Braman | 1971 | current | ||
| I-40 | 331 | 533 | Texas state line west of Erick | Arkansas state line west of Fort Smith, Arkansas | 1959 | current | ||
| I-44 | 328.53 | 528.72 | Texas state line north of Burkburnett, Tex. | Missouri state line west of Joplin, Mo. | 1964 | current | Follows the route of the H. E. Bailey Turnpike, Turner Turnpike, and Will Rogers Turnpike | |
| I-235 | 5.36 | 8.63 | I-35/I-40/US-77/US-270 in Oklahoma City | I-44/US-77 in Oklahoma City | 1976 | current | ||
| I-240 | 16.22 | 26.10 | I-44 in Oklahoma City | I-40 in Oklahoma City | 1965 | current | ||
| I-244 | 15.75 | 25.35 | I-44/SH-66 in Tulsa | I-44/US-412/SH-66 in Tulsa | 1967 | current | ||
| I-440 | — | — | in Oklahoma City | I-35 in Oklahoma City | — | c. 1965 | Became part of I-240, currently part of I-44 | |
| I-444 | 2.51 | 4.04 | I-244/US-64/SH-51 in Tulsa | I-244/US-75 in Tulsa | — | — | Unsigned highway | |
| ||||||||
Highway markers for Interstate 40, Interstate 240, and Interstate 40 Business | |
Interstate Highways highlighted in red | |
| System information | |
|---|---|
| Formed | August 14, 1957 |
| Highway names | |
| Interstates | Interstate X (I-X) |
| Business Loops and Spurs: | Interstate X Business (I-X Bus.) |
| System links | |
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