List of future Interstate Highways
From Wikipedia, the free encyclopedia
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.
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| Dwight D. Eisenhower National System of Interstate and Defense Highways | |
|---|---|
Highway shield for Future Interstate 42 | |
 Proposed Interstate Highways in December 2015 | |
| System information | |
| Formed | June 29, 1956[1] |
| Highway names | |
| Interstates | Interstate X (I-X) |
| System links | |
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 (ISTEA) in 1991 and amendments to Section 1105. By law, they will become interstates when built to Interstate standards and connected to other interstates.[2][3]
California State Route 99
Caltrans' long-range plans recommend that SR 99 be upgraded to Interstate Highway standards between its southern end and Sacramento, which would require upgrading some substandard sections. Caltrans once suggested the route could be designated as either I-7 or I-9, in accordance with the Interstate Highway System's numbering standards, being just east of and parallel to I-5.[4]
Proposed routes for the Interstate Highway would have it go from the split with I-5 at Wheeler Ridge (Wheeler Ridge Interchange) north through Bakersfield and Fresno to Stockton, where the route would turn 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 SR 99, will turn west along the Capital City Freeway, already an Interstate Highway (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 SR 99.[5]
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 or I-9.[5] The route is to remain roughly parallel to I-5, serving major cities in California I-5 does not, 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 Highway System.[6]
Interstate 42 (Oklahoma–Arkansas)
Future Interstate 42 | |
|---|---|
| Location | Noble County, OK to Springdale, AR |
| Length | 190 mi (310 km) |
In May 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).[7][8] 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).[9]
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.[10] 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.[11]
Future Auxiliary Interstate Highways
Interstate 195 (Washington D.C.)
Future Interstate 195 | |
|---|---|
| Location | Washington |
| Length | 2.41 mi (3.88 km) |
The current Interstate 695 will be eliminated and be replaced with an extension of Interstate 395. The original Interstate 395 through the 3rd Street Tunnel will be renumbered as Interstate 195.[12]
Interstate 214
.png){kind=small} Future Interstate 214 | |
|---|---|
| Location | Bryan–College Station |
Interstate 214 is proposed to be a beltway around Bryan-College Station in Texas.[13]
Interstate 222
.svg){kind=small} Future Interstate 222 | |
|---|---|
| Location | Graysville to Brookside |
| Length | 2.26 mi (3.64 km) |
Interstate 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.[14]
Interstate 274 (North Carolina)
.svg){kind=small} Future Interstate 274 | |
|---|---|
| Location | Winston-Salem |
| Length | 16.83 mi (27.09 km) |
Interstate 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. In May 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.[15]
Interstate 343
Future Interstate 343 | |
|---|---|
| Location | Broken Arrow To Webbers Falls |
| Length | 53.1 mi (85.5 km) |
Interstate 343 is a proposed designation for the existing Muskogee Turnpike. The current designated number is Oklahoma State Highway 351.[16]
Interstate 365
.svg){kind=small}
Interstate 365 is a proposed redesignation of the Cumberland Parkway once it is upgraded to Interstate standards. In August 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.[17] 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)
.svg){kind=small}
Interstate 369 is planned to follow the entire Audubon Parkway. The western terminus to Interstate 69 will be called the Interstate 69 Spur.[18]
Interstate 422
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Interstate 422 is a proposed beltway in Birmingham. Interstate 422 will not 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.[19]
Interstate 490 (Illinois)
.svg){kind=small} Future Interstate 490 | |
|---|---|
| Location | Franklin Park to Des Plaines |
| Length | 6.00 mi (9.66 km) |
Interstate 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 2027.[20]
Interstate 569
.svg){kind=small} Future Interstate 569 | |
|---|---|
| Location | Nortonville to Beaver Dam |
| Length | 38.446 mi (61.873 km) |
In April 2019, the Western Kentucky Parkway was proposed as Interstate 369. In December 2019, it was changed to Interstate 569, as the Audubon Parkway was proposed to be Interstate 369.[21]
Interstate 644
Interstate 644 is a proposed designation for the existing Creek Turnpike.[22]
Interstate 685 (Alabama)
.svg){kind=small} Future Interstate 685 | |
|---|---|
| Location | Montgomery |
| Length | 14.440 mi[23] (23.239 km) |
Interstate 685 is planned to follow a portion of Interstate 85 when I-85 gets rerouted to the Montgomery Outer Loop.[24]
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.[25]
Interstate 795 (Florida)
.svg){kind=small} 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).[26]
Interstate 905
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Interstate 905 in California is proposed to replace California State Route 905, which connects San Diego to the Mexican border.[27]
