List of Interstate Highways in Oklahoma

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

* Oklahoma State Highway System

* Interstate
* US
* State
* Turnpikes

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 | 01971-01-011971 | current  |
I-40 | 331 | 533  | Texas state line west of Erick | Arkansas state line west of Fort Smith, Arkansas | 01959-01-011959 | current  |
I-42 | 166 | 267  | I-35 in Noble County, Oklahoma | Arkansas state line in Siloam Springs, Arkansas | proposed | —  | Future Interstate
I-44 | 328.53 | 528.72  | Texas state line north of Burkburnett, Tex. | Missouri state line west of Joplin, Mo. | 01964-04-231964 | 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  | 01976-07-131976[3] | current  |
I-240 | 26.22 | 42.20  | I-344 (John Kilpatrick Turnpike) in Oklahoma City | I-40 in Oklahoma City  | 01965-01-011965 | 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  | 01967-01-011967 | current  |
I-335 | 19.6 | 31.5  | I-40 near Oklahoma City | I-44 in Luther | 02024-01-012024[4] | current  | Redesignation of Kickapoo Turnpike; will be extended to I-35 in the future
I-344 | 31.0 | 49.9  | I-240 in Oklahoma City | I-35/I-44 near Oklahoma City  | 02024-01-012024[4] | current  | Redesignation of John Kilpatrick Turnpike
I-440 | — | —  | in Oklahoma City | I-35 in Oklahoma City  | — | 01965-01-01c. 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

*       Former
*       Proposed and unbuilt

## References

[edit]

1. ^ Public Roads Administration (August 14, 1957). Official Route Numbering for the National System of Interstate and Defense Highways as Adopted by the American Association of State Highway Officials (Map). Scale not given. Washington, DC: Public Roads Administration. Retrieved March 3, 2013 – via Wikimedia Commons.
2. ^ Cockerell, Penny (June 29, 2006). "50 Years: As the intersection of Interstates 35, 40 and 44, Oklahoma is at America's crossroads". The Oklahoman. pp. 1A, 2A. Retrieved March 1, 2023 – via Newspapers.com.
3. ^ Rhodes, H. J. (July 15, 1976). "Letter to V. O. Bradley, Director of the Oklahoma State Highway Department" (PDF). American Association of State Highway and Transportation Officials. p. 8. Retrieved May 24, 2013.
4. ^ a b Special Committee on U.S. Route Numbering (November 2023). "2023 Fall Meeting Report to the Council on Highways and Streets" (PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. p. 5\. Archived (PDF) from the original on December 5, 2023. Retrieved March 10, 2024.

## External links

[edit]

* OKHighways by Eric Stuve

*[c.]: circa