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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, Republican 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 Republicans of Arkansas. The senators' stated reasons for seeking an Interstate designation along the 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 the mayor of Tulsa, G. T. Bynum, 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 905

Interstate 905 in California is proposed to replace California State Route 905.

Interstate 310 (Mississippi)

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 422

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. A timeline for construction to begin has not been established.

Interstate 222

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Interstate 365

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Interstate 369 (Kentucky)

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Interstate 569

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 169 (Tennessee)

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

Interstate 274 (North Carolina)

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Interstate 380 (Ohio)

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Interstate 685 (Alabama)

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Interstate 685 (North Carolina)

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Interstate 490 (Illinois)

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Interstate 795 (Florida)

This section is empty. You can help by adding to it. (December 2024)

See also

• 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. Blakely | 08.24.23, Will. "U.S. Rep. Palmer: Northern Beltline 'critical' for Alabama; Says I-65…". 1819 News. Retrieved July 1, 2024.{{cite web}}: CS1 maint: numeric names: authors list (link)

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