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Dwight D. Eisenhower National System of Interstate and Defense Highways
Shields for future Interstates
Proposed Interstate Highways in December 2015
System information
Formed	June 29, 1956
Highway names
Interstates	Interstate X (I-X)
System links
Interstate Highway System Main Auxiliary Suffixed Business Future

In the United States, future Interstate Highways include proposals to establish new mainline (one- and two-digit) routes to the Interstate Highway System. Included in this article are auxiliary Interstate Highways (designated by three-digit numbers) in varying stages of planning and construction, and the planned expansion of existing primary Interstate Highways.

Congressionally designated future Interstates

Several Congressional High Priority Corridors have been designated as future parts of the Interstate Highway System by the Intermodal Surface Transportation Efficiency Act and amendments. By law, they will become interstates when built to Interstate standards and connected to other interstates.

Interstate 3

Future Interstate 3
Location	Savannah, GA – Knoxville, TN

Interstate 3 is the proposed designation of an Interstate Highway Corridor under development in the Southeastern United States. It is planned to run from Savannah, Georgia, to Knoxville, Tennessee. Its number does not follow standard numbering conventions; under established numbering conventions, I-3 would normally run west of I-5 along the Pacific Coast. The unnumbered Interstate was established by the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) legislation that also provided for Interstate 14. The "Interstate 3" designation has not been officially accepted by American Association of State Highway and Transportation Officials (AASHTO) or the Federal Highway Administration (FHWA), but is being used by the Georgia Department of Transportation and others to identify the highway. The number comes from the 3rd Infantry Division, which is based in Georgia. The exact route has not been finalized.

Interstate 7

Future Interstate 7
Location	Wheeler Ridge–Sacramento, CA

Interstate 7 has been proposed by Caltrans for State Route 99 in central California. It would go from the split with I-5 at Wheeler Ridge (Wheeler Ridge Interchange) north through Bakersfield and Fresno to Stockton, where the proposed route turns west via the SR 4 freeway to a terminus at I-5 in the central part of that city. An alternate proposed terminus is located at the I-5/US 50/Capital City Freeway junction in Sacramento, where the future Interstate, after continuing north from Stockton along Route 99, can turn west along the Capital City Freeway, already an Interstate route (unsigned I-305), to connect with I-5, which extends north toward Redding. This also serves as a connector to the existing northern portion of Highway 99. The future Interstate's prospects for development to appropriate standards are tied to the Caltrans "Route 99 Corridor Enhancement Master Plan"; this document posits that when and if Interstate status is conferred, the route will be designated I-7. The route will remain roughly parallel to I-5, serving major cities in California I-5 doesn't, including Fresno and Bakersfield.

In August 2005, with the passage of that year's SAFETEA-LU federal transportation legislation, SR 99 from Wheeler Ridge to Stockton and beyond to Sacramento was designated as High Priority Corridor 54, the California Farm-to-Market Corridor; this legislation also designated that corridor as a future segment of the Interstate System.

Interstate 42 (Oklahoma–Arkansas)

Future Interstate 42
Location	Noble County, Oklahoma to Springdale, Arkansas
Length	190 mi (310 km)

On May 20, 2021, Senator Jim Inhofe, of Oklahoma, introduced legislation to designate the portion of US 412 between I-35 in Noble County and I-49 in Springdale, Arkansas as future Interstate 42 (I-42). The bill, titled the "Future Interstate in Oklahoma and Arkansas Act" (S. 1766), was cosponsored by senators John Boozman and Tom Cotton, both of Arkansas. The senators' stated reasons for seeking an Interstate designation along US 412 included encouraging economic development, expanding opportunities for employment in the region, making travel safer and shipping easier, attracting new businesses, and better connecting rural and urban communities. Other supporters of the measure include Mayor G. T. Bynum of Tulsa, and the heads of both ODOT and the Arkansas Department of Transportation (ArDOT). The language of the bill was later included in the Infrastructure Investment and Jobs Act (H.R. 3684). Interstate 42 (I-42) was the proposed designation but was withdrawn. ArDOT and ODOT later resubmitted the application to the Spring 2024 meeting; AASHTO approved the route as Interstate 42, conditional on it being upgraded to Interstate standards.

Future Auxiliary Interstate Highways

Interstate 169 (Tennessee)

Future Interstate 169
Location	Union City to Martin
Length	15.00 mi (24.14 km)

Interstate 169 is proposed to run along Tennessee State Route 22 from Union City to Martin.

Interstate 222

Future Interstate 222
Location	Graysville to Brookside
Length	2.26 mi (3.64 km)

Interstate 222 (I-222) is a future auxiliary Interstate Highway that will be a connector between I-22 and the proposed I-422 near Birmingham, Alabama. There will be no exits other than its termini. The highway has been proposed because an interchange directly between I-22 and I-422 cannot be built due to environmental issues.

Interstate 274 (North Carolina)

Future Interstate 274
Location	Winston-Salem
Length	16.83 mi (27.09 km)

Interstate 274 (I-274) is the future designation for the western half of the beltway, currently designated as NC 452. When completed, it will connect US 158, near Clemmons, North Carolina, to Future I-74/Future I-285/US 52, in Bethania. I-274 first appeared on North Carolina Department of Transportation (NCDOT) planning maps in the early 2000s but was later disused for over a decade since. On May 20, 2019, the American Association of State Highway and Transportation Officials (AASHTO) approved a request to establish Future I-274. Justification given by NCDOT was that the 16.83-mile (27.09 km) section would satisfy a great need to alleviate congestion in Winston-Salem and connect the western portion of the urbanized area.

Interstate 310 (Mississippi)

Future Interstate 310
Location	Gulfport
Length	6.00 mi (9.66 km)

Interstate 310 is a proposed Interstate in Mississippi. Construction was supposed to begin in 2008 but never occurred. Much of the land clearing was done.

Interstate 365

Future Interstate 365
Location	Park City to Somerset
Length	88.376 mi (142.227 km)

Interstate 365 is a proposed redesignation of the Cumberland Parkway once it is upgraded to Interstate standards. On August 5, 2021, Congress released a new infrastructure bill that proposed to designate the whole length of the Cumberland Expressway as a Future Interstate, with the designation of I-365. The designation would need approval from AASHTO, the FHWA, and upgrades of several interchanges and other improvements before the designation could be implemented.

Interstate 369 (Kentucky)

Interstate 369
Location	Henderson to Owensboro
Length	24.441 mi (39.334 km)

Interstate 369 is planned to follow the entire Audubon Parkway with the Western terminus to Interstate 69 being called Interstate 69 Spur.

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Interstate 380 (Ohio)

Interstate 380
Location	Akron to Macedonia
Length	17.57 mi (28.28 km)

This interstate is proposed to start from the southern terminus of Ohio SR 8 at Akron to the intersection of I-271. The project hasn't been approved yet.

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Interstate 422

Future Interstate 422
Location	south of Bessemer to Argo
Length	52.5 mi (84.5 km)

Interstate 422 is a proposed beltway in Birmingham. Interstate 422 won't directly connect to I-22 so therefore a new connector known as Interstate 222 is proposed. It is also called Corridor X-1. A timeline for construction to begin has not been established.

Interstate 490 (Illinois)

Future Interstate 490
Location	Franklin Park to Des Plaines
Length	6.00 mi (9.66 km)
Existed	2025–present

Interstate 490 (I-490), also known as the O'Hare West Bypass and Western O'Hare Beltway, is a six-mile (9.7 km) electronic toll highway and a beltway that is currently under construction near Chicago, Illinois; it will run along the west side of O'Hare International Airport. The tollway will connect I-294 (Tri-State Tollway) to a western access point to the airport. From there, it will continue northward to an extension of Illinois Route 390 (IL 390, formerly known as the Elgin-O'Hare Expressway) and I-90 (Jane Addams Memorial Tollway). It is proposed to be finished by 2025.

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Interstate 569

Interstate 569
Location	Nortonville to Beaver Dam
Length	38.446 mi (61.873 km)

In April 2019, the Western Kentucky Parkway was originally proposed as Interstate 369 before being changed Interstate 569 in December 2019 as the Audubon Parkway was proposed to be Interstate 369.

Interstate 685 (Alabama)

Future Interstate 685
Location	Montgomery
Length	14.440 mi (23.239 km)

This Interstate is planned to follow a portion of Interstate 95 when Interstate 95 gets altered on the Montgomery Outer Loop.

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Interstate 685 (North Carolina)

Future Interstate 685
Location	Greensboro to Dunn
Length	89.200 mi (143.553 km)

Interstate 685 is a proposed Interstate planned to run along current US 421. It will be upgraded to Interstate highway standards from Interstate 40 in Greensboro to Interstate 95 in Dunn.

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Interstate 795 (Florida)

Future Interstate 795
Location	St. Johns to Jacksonville
Length	5.508 mi (8.864 km)

Florida State Road 9B is planned to be redesignated Interstate 795 (I-795) when the designation is approved by the Federal Highway Administration (FHWA) and the American Association of State Highway and Transportation Officials (AASHTO).

Interstate 905

Interstate 905
Location	San Diego to Otay Mesa
Length	8.96 mi (14.42 km)

Interstate 905 in California is proposed to replace California State Route 905, which connects San Diego to the Mexican border.

See also

• [REDACTED] U.S. Roads portal

References

1. Weingroff, Richard F. (Summer 1996). "Federal-Aid Highway Act of 1956, Creating the Interstate System". Public Roads. 60 (1). Washington, DC: Federal Highway Administration. Retrieved March 16, 2012.
2. United States Congress. "National Highway System Designation Act of 1995". Library of Congress. Archived from the original on September 4, 2015. Retrieved October 21, 2007.
3. Staff (May 2, 2006). "Future Interstates on the National Highway System Designated by Section 1105 of ISTEA as amended". Federal Highway Administration. Archived from the original on September 26, 2006.
4. "Chapter 3". Caltrans Route 99 Enhancement Plan (PDF). California Department of Transportation. Archived from the original (PDF) on February 4, 2010. Interstate designation, under the current proposal, would apply to the 260-mile (420 km) segment between the junction of State Route 99 with I-5 south of Bakersfield to I-5 in Stockton using State Route 4 as the connector to I-5. Since there is an I-99 route currently in existence in Pennsylvania, it is anticipated that should designation be granted, the Route 99 designation would become I-7 to satisfy Interstate numbering convention.
5. United States Congress. "Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users". Library of Congress.
6. "Residents get clarity on plans for U.S. 412". Arkansas Democrat Gazette. June 14, 2024. Retrieved June 27, 2024.
7. "Siloam Springs residents speak out about interstate proposal". 40/29 News Sunrise. June 13, 2024. Retrieved June 27, 2024.
8. Della Rosa, Jeff (May 21, 2021). "U.S. legislators look to designate part of Highway 412 as 'future interstate'". Talk Business & Politics. Retrieved May 22, 2021.
9. "Final_Report_USRN_Fall_2023_R_1.pdf" (PDF). Retrieved July 4, 2024.
10. Special Committee on U.S. Route Numbering (2024). "2024 Spring Meeting Report to the Council on Highways and Streets" (Report). Washington, DC: American Association of State Highway and Transportation Officials. Retrieved June 2, 2024 – via AASHTO Route Numbering Archive.
11. "NCDOT: Project Details". October 29, 2011. Retrieved January 23, 2025.
12. Blakely, Will (August 24, 2023). "U.S. Rep. Palmer: Northern Beltline 'critical' for Alabama; Says I-65…". 1819 News. Retrieved July 1, 2024.
13. "Illinois Tollway". illinoistollway.com. Retrieved January 23, 2025.
14. Hammer, John (September 26, 2019). "Gate City Headed For Another Interstate Highway". The Rhino Times of Greensboro. Retrieved January 23, 2025.
15. "State Road 9B Opens In St. Johns County; It Will Eventually Be Renamed I-795". WJCT News 89.9. August 9, 2018. Retrieved January 23, 2025.

External links

• Future Interstates and Potential Interstate Corridors at Interstate-Guide.com
• North Carolina's New and Future Interstates at Malmeroads.net

v t e Primary Interstate Highways
Signed	2 4 5 8 10 11 12 14 15 16 17 19 20 22 24 25 26 27 29 30 31 35 37 39 40 41 42 43 44 45 49 55 57 59 64 65 66 KS–KY VA–DC 68 69 70 71 72 73 74 75 76 CO–NE OH–NJ 77 78 79 80 81 82 WA–OR PA–NY CT–RI 83 84 OR–UT PA–MA 85 86 ID PA–NY CT–MA 87 NC NY 88 IL NY 89 90 91 93 94 95 96 97 99 H-1 H-2 H-3
Unsigned	A-1 A-2 A-3 A-4 PRI-1 PRI-2 PRI-3
Lists	Primary Auxiliary Suffixed Business Future
Other	Standards Gaps Tolled
Routes in italics are no longer a part of the system. Major Interstates are highlighted.

• Proposed Interstate Highways
• Lists of proposals