List of Interstate Highways in Oklahoma
From Wikipedia, the free encyclopedia
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.[2]
| 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-42 |
190 | 310 | I-35 in Noble County, Oklahoma | Arkansas state line in Siloam Springs, Arkansas | proposed | — | Approved Future Interstate | |
 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[3] | current | ||
 I-240 |
26.22 | 42.20 | I-344 (Kilpatrick Turnpike) in Oklahoma City | I-40 in Oklahoma City | 1965 | current | In 2024, I-240 was extended west following I-44 to SH-152 to I-344 adding 10 miles (16 km) to the route | |
 I-244 |
15.75 | 25.35 | I-44/SH-66 in Tulsa | I-44/US-412/SH-66 in Tulsa | 1967 | current | ||
 I-335 |
19.6 | 31.5 | I-40 near Oklahoma City | I-44 in Luther | 2024[4] | current | Redesignation of Kickapoo Turnpike; will be extended to I-35 in the future | |
| I-343 | 52.31 | 84.18 | Creek Turnpike in Broken Arrow | I-40 near Webbers Falls | proposed | — | Approved Future Interstate; redesignation of Muskogee Turnpike[5][6] | |
 I-344 |
31.0 | 49.9 | I-240 in Oklahoma City | I-35/I-44 near Oklahoma City | 2024[4] | current | Redesignation of Kilpatrick Turnpike | |
 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 | |
| I-644 | 32.79 | 52.77 | I-44 (Turner Turnpike) in Sapulpa | I-44 (Will Rogers Turnpike)/US-412 in Fair Oaks | proposed | — | Approved Future Interstate; Redesignation of Creek Turnpike[7] | |
| ||||||||
FormedAugust 14, 1957[1]
InterstatesInterstate X (I-X)
Business Loops and Spurs:Interstate X Business (I-X Bus.)
.svg) .svg)  Highway markers for Interstate 40, Interstate 240, and Interstate 40 Business | |
 Interstate Highways highlighted in red | |
| System information | |
|---|---|
| Formed | August 14, 1957[1] |
| Highway names | |
| Interstates | Interstate X (I-X) |
| Business Loops and Spurs: | Interstate X Business (I-X Bus.) |
| System links | |
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