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
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-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	16.22	26.10	I-44 in Oklahoma City	I-40 in Oklahoma City	01965-01-011965	current
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-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

References

↑ Official Route Numbering for the National System of Interstate and Defense Highways (Map). American Association of State Highway Officials. August 14, 1957.
↑ 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.
↑ 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.

External links

OKHighways by Eric Stuve

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[1957map-1] Official Route Numbering for the National System of Interstate and Defense Highways (Map). American Association of State Highway Officials. August 14, 1957.

[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.

[action11-3] 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.

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