List of Interstate Highways in Arizona

Interstate Highways of the Arizona State Highway System
Example signage from Arizona's Interstate System
Interstate Highways highlighted in red
System information
Maintained by ADOT
Length	1,169.17 mi[1] (1,881.60 km) Interstate Business Routes not included
Formed	1957
Highway names
Interstates	Interstate X (I-X)
US Highways	U.S. Route X (US X)
State	State Route X (SR X)
System links
Arizona State Highway System Interstate U.S. State Unconstructed Former

The U.S. state of Arizona's Interstate Highways.

List

Number	Length (mi)[1]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-8	178.33	286.99	I-8 at the California state line	I-10 in Casa Grande	1962[2]	current	Replaced US 80 and SR 84
I-10	392.33	631.39	I-10 at the California state line	I-10 at the New Mexico state line	1960[3]	current	Replaced US 60, US 70, SR 93, SR 84, US 80 and SR 86
I-11	—	—	I-19 BL in Nogales	I-11/US 93 at the Nevada state line	proposed	—	Will replace US 93 and I-19
I-15	29.39	47.30	I-15 at the Nevada state line	I-15 at the Utah state line	1962[4]	current	Replaced US 91
I-17	145.76	234.58	I-10 / US 60 in Phoenix	I-40 in Flagstaff	1957[5]	current	Replaced US 89, US 89A, SR 79 and SR 69
I-19	63.35	101.95	I-19 Bus. in Nogales	I-10 at Tucson	1963[6]	current	Replaced US 89 and SR 93
I-40	359.48	578.53	I-40 at the California state line	I-40 at the New Mexico state line	1962[6]	current	Replaces US 66 and US 89
I-410	0.65[7]	1.05	I-10 in Phoenix	Buckeye Road in Phoenix	1969[8]	1971[9]	Renumbered I-10; old route of I-10 became I-17
I-510	0.65[7]	1.05	I-10 in Phoenix	Buckeye Road in Phoenix	1958[10]	1969[8]	Inner Loop Freeway; only a small section was completed; renumbered I-410
I-710	—	—	I-10 in Tucson	I-10 in Tucson	1971	1982	Proposed, but it never materialized. What would have been I-710 became today's Kino Parkway.
Former       Future

Business routes

All state designated Interstate Business Loops are internally designated as State Route Business Loops by ADOT, being referred to throughout ADOT ArcGIS data and state highway logs as such.[11] For example, all currently state designated I-10 Business Loops in Arizona are referred to as "SB010" which is the Arizona Transportation Information System (ATIS) code for "State Business Route 10" or "SR 10B" for short.[11][12]

Number	Length (mi)[1]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-8 BL	12.23	19.68	I-8 BL at the California state line	I-8 east of Yuma	1966[13]	current	Former US 80[14]
I-8 BL	5.96	9.59	I-8 west of Gila Bend	I-8 east of Gila Bend	1973[15]	current	Former US 80 and SR 84[14]
I-10 BL	2.91	4.68	I-10 west of Quartzsite	I-10 east of Quartzsite	1974[16]	current	Former US 60/US 70[14]
I-10 BL	—	—	I-10 at 27th Avenue in Phoenix	I-10 at 48th Street in Phoenix	—	1990
I-10 BL	5.75[6]	9.25	I-10 and Park Avenue in Tucson	I-10 east of Tucson	1972[17]	2001[18]	Former US 80/SR 86[14]
I-10 BL	3.51	5.65	I-10 west of Benson	I-10 east of Benson	1974[19]	current	Former US 80/SR 86[14]
I-10 BS	0.55[6]	0.89	I-10 north of Benson	I-10 BL in Benson	1969[20]	1999[21]	Ocotillo Road in Benson
I-10 BL	8.33	13.41	I-10 west of Willcox	I-10 east of Willcox	1974[22]	current	Former US 666/SR 86[14]
I-10 BL	4.41	7.10	I-10 west of Bowie	I-10 east of Bowie	1974[23]	current	Former SR 86[14]
I-10 BL	3.90	6.28	I-10 west of San Simon	I-10 east of San Simon	1974[24]	current	Former SR 86[14]
I-19 BL	17.06	27.46	I-19 north of Nogales	Fed. 15 at the Mexican border	1992[25]	current	Former US 89[14]
I-19 BL	20.24[6]	32.57	I-19 in Green Valley	I-10 in South Tucson	1992[26]	2004[27]	Former US 89/SR 93[14]
I-40 BL	0.55[lower-alpha 1]	0.89	I-40/US 93 west of Kingman	I-40/US 93 east of Kingman	1984[28]	2009[29]	Former US 66/US 93[14]
I-40 BL	4.25	6.84	I-40 southwest of Seligman	I-40 southeast of Seligman	1984[30]	current	Section of the route is former US 66.[14]
I-40 BL	1.49	2.40	I-40 west of Ash Fork	I-40/SR 89 east of Ash Fork	1984[31]	current	Former US 66/US 89.[14]
I-40 BL	24.08	38.75	I-40 west of Flagstaff	I-40/US 180 east of Flagstaff	1984[31]	current	Former US 66/US 89.[14]
I-40 BL	0.87[32]	1.40	I-40 BL/US 180 in Flagstaff	I-40/US 180 east of Flagstaff	2002[33]	2008[34]	Former US 66/US 180.[14]
I-40 BL	3.63[35]	5.84	I-40/US 180/SR 99 west of Winslow	I-40/US 180/SR 87 east of Winslow	1980[36]	2007[32]	Former US 66/US 180.[14]
I-40 BS	1.20	1.93	SR 99 (3rd Street) in Winslow	Winslow Industrial Spur west of Winslow	1974[37]	current	Former US 66/US 180.[14]
I-40 BL	6.83	10.99	I-40/US 180 west of Joseph City	I-40/US 180 east of Joseph City	1984[38]	current	Former US 66/US 180.[14]
I-40 BL	15.47	24.90	I-40/US 180 west of Holbrook	I-40/SR 77 east of Holbrook	1984[38]	current	Former US 66.[14]
Former

See also

•  Arizona portal
•  U.S. roads portal

References

1. Arizona Department of Transportation. "2008 ADOT Highway Log" (PDF). Arizona Department of Transportation. Retrieved April 30, 2008.
2. Cole, Ben (May 1, 1963). "State Road Jobs Eyed by House". Arizona Republic. Phoenix. pp. 1, 4. Retrieved June 10, 2019 – via Newspapers.com.
3. Harelson, Hugh (December 4, 1960). "$3 Million Road Budget Explained". Arizona Republic. Phoenix. p. 17. Retrieved October 6, 2018 – via Newspapers.com.
4. Arizona Department of Transportation (February 28, 2015). "Arizona State Highway System Bridge Record" (PDF). Arizona Department of Transportation. Retrieved September 10, 2016.
5. Nothaft, Mark (February 21, 2017). "Which freeway came first in the Valley?". Arizona Republic. Retrieved June 18, 2019 – via AZCentral.com.
6. Arizona Department of Transportation (December 15, 1999). "1998 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved June 10, 2019.
7. "NETRonline: Historic Aerials - Viewer". NETR Online. Tempe, Arizona: Nationwide Environmental Title Research, LLC. September 10, 2018. Retrieved September 10, 2018.
8. Breyer, Joe. "Arizona DOT Right-of-Way Resolution 1962-151". Arizona Highway Data. Works Consulting, LLC. Retrieved March 6, 2016.
9. Arizona Department of Transportation (1971). ADOT Road Map of Arizona (Map). No Scale Given. Phoenix: Arizona Highway Department. Phoenix inset. Retrieved August 24, 2018 – via AARoads.
10. Breyer, Joe. "Arizona DOT Right-of-Way Resolution 1962-151". Arizona Highway Data. Works Consulting, LLC. Retrieved March 6, 2016.
11. Arizona Department of Transportation, Multimodal Planning Division (2015). "State Highway System (ArcGIS)". Arizona Department of Transportation. Retrieved August 1, 2018.
12. "ATIS Nomenclature" (PDF). GPS Tools for Arc View. Arizona Department of Transportation. August 2, 2000. pp. 57 to 64.
13. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1966-P-075". Arizona Department of Transportation. Retrieved October 18, 2018.
14. Arizona Highway Department; Rand McNally Company (1963). State Highway Department Road Map of Arizona (Map). 1:1,520,640. Phoenix: Arizona Highway Department. Retrieved August 24, 2018 – via AARoads.
15. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1973-P-074". Arizona Department of Transportation. Retrieved October 18, 2018.
16. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1974-P-056". Arizona Department of Transportation. Retrieved October 18, 2018.
17. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1972-P-082". Arizona Department of Transportation. Retrieved October 18, 2018.
18. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 2001-8-A-060". Arizona Department of Transportation. Retrieved October 18, 2018.
19. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1974-P-060". Arizona Department of Transportation. Retrieved October 18, 2018.
20. Staff. "ADOT Right-of-Way Resolution 1969-P-063". Arizona Department of Transportation. Retrieved June 19, 2019.
21. Staff. "ADOT Right-of-Way Resolution 1999-11-A-053". Arizona Department of Transportation. Retrieved June 19, 2019.
22. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1974-P-059". Arizona Department of Transportation. Retrieved October 18, 2018.
23. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1974-P-057". Arizona Department of Transportation. Retrieved October 18, 2018.
24. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1974-P-058". Arizona Department of Transportation. Retrieved October 18, 2018.
25. Arizona Department of Transportationg. "ADOT Right-of-Way Resolution 1992-08-A-056". Arizona Department of Transportation. Retrieved October 18, 2018.
26. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1992-08-A-056". Arizona Department of Transportation. Retrieved October 18, 2018. RENUMBER U.S. 89 FROM JCT WITH I-19 NEAR GREEN VALLEY TO I-10 IN TUCSON
27. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 2004-03-A-009". Arizona Department of Transportation. Retrieved October 18, 2018. Abandon B-19 (old 89) from Duval Mine Road going north to Los Reales Road; Portion goes to Pima County, portion goes to the Town of Sahuarita; PR: 9-9-27, p. 26; + various; and 92-08-A-56.
28. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1984-10-A-063". Arizona Department of Transportation. Retrieved June 5, 2019.
29. Multimodal Planning Division, Roadway Inventory Staff (December 31, 2009). "2009 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved June 5, 2019.
30. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1984-10-A-064". Arizona Department of Transportation. Retrieved June 5, 2019.
31. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1984-10-A-064". Arizona Department of Transportation. Retrieved June 5, 2019.
32. Arizona Department of Transportation (December 31, 2007). "2007 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved June 5, 2019.
33. Arizona Department of Transportation (December 31, 2005). "2005 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved June 5, 2019.
34. Multimodal Planning Division, Data Bureau Staff (December 31, 2008). "2008 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved June 5, 2019.
35. Transportation Planning Division, Data Bureau Staff (December 31, 2006). "2006 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved June 5, 2019.
36. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1980-10-A-040". Arizona Department of Transportation. Retrieved June 5, 2019.
37. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1974-03-A-001". Arizona Department of Transportation. Retrieved June 5, 2019.
38. Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1984-10-A-066". Arizona Department of Transportation. Retrieved June 5, 2019.

Notes

1. Only the beginning and ending segments of BL 40 were maintained by ADOT at the very end of its existence, hence the low recorded mileage.