| Dwight D. Eisenhower National System of Interstate and Defense Highways | |
|---|---|
.svg) .svg) Shields for future Interstates | |
 Proposed Interstate Highways in December 2015 | |
| System information | |
| Formed | June 29, 1956[1] |
| Highway names | |
| Interstates | Interstate X (I-X) |
| System links | |
In the United States,future Interstate Highways include proposals to establish new mainline (one- and two-digit) routes to theInterstate Highway System. Included in this article areauxiliary Interstate Highways (designated by three-digit numbers) in varying stages of planning and construction, and the planned expansion of existing primary Interstate Highways.
SeveralCongressional High Priority Corridors have been designated as future parts of the Interstate Highway System by theIntermodal Surface Transportation Efficiency Act (ISTEA) in 1991 and amendments to Section 1105. By law, they will become interstates when built toInterstate standards and connected to other interstates.[2][3]
Future Interstate 3 | |
|---|---|
| Location | Savannah, GA –Knoxville, TN |
Interstate 3 is the proposed designation of an Interstate Highway Corridor under development in theSoutheastern United States. It is planned to run fromSavannah, Georgia, toKnoxville, Tennessee. Its number does not follow standard numbering conventions; under established numbering conventions, I-3 would normally run west of I-5 along thePacific Coast. The unnumbered Interstate was established by theSafe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) legislation that also provided forInterstate 14. The "Interstate 3" designation has not been officially accepted byAmerican Association of State Highway and Transportation Officials (AASHTO) or theFederal Highway Administration (FHWA), but is being used by theGeorgia Department of Transportation and others to identify the highway. The number comes from the3rd Infantry Division, which is based in Georgia. The exact route has not been finalized.[4][5]
.svg) .svg) Future Interstate 7/9 | |
|---|---|
| Location | Wheeler Ridge, CA –Sacramento, CA |
| Length | 302 mi (486 km) |
Interstate 7 or 9 has been proposed byCaltrans forState Route 99 in centralCalifornia. It would go from the split withI-5 atWheeler Ridge (Wheeler Ridge Interchange) north throughBakersfield andFresno toStockton, where the proposed route(s) turns west via theSR 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 inSacramento, where the future Interstate(s), after continuing north from Stockton along Route 99, can turn west along theCapital City Freeway, already an Interstate route (unsigned I-305), to connect with I-5, which extends north towardRedding. 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 or I-9.[6] The route is to remain roughlyparallel 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 asHigh Priority Corridor 54, the California Farm-to-Market Corridor; this legislation also designated that corridor as a future segment of the Interstate System.[7]
Future Interstate 42 | |
|---|---|
| Location | Noble County, OK toSpringdale, AR |
| Length | 190 mi (310 km) |
On May 20, 2021, SenatorJim Inhofe, of Oklahoma, introduced legislation to designate the portion of US 412 between I-35 in Noble County andI-49 inSpringdale, Arkansas as future Interstate 42 (I-42).[8][9] The bill, titled the "Future Interstate in Oklahoma and Arkansas Act" (S. 1766), was cosponsored by senatorsJohn Boozman andTom 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 MayorG. T. Bynum of Tulsa, and the heads of both ODOT and theArkansas Department of Transportation (ArDOT).[10] The language of the bill was later included in theInfrastructure Investment and Jobs Act (H.R. 3684). Interstate 42 (I-42) was the proposed designation but was withdrawn.[11] ArDOT and ODOT later resubmitted the application to the Spring 2024 meeting; AASHTO approved the route as Interstate 42, conditional on it being upgraded toInterstate standards.[12]
.svg) Future Interstate 67 | |
|---|---|
| Location | |
Interstate 67 has been a proposed number for at least three highways.
I-67 was originally the designation given to a never-built highway connectingKalamazoo, Michigan, to the east side ofElkhart, Indiana, as part of the original Interstate numbering plan in 1957.[13] A planning map shows a freeway along this routing intersecting theIndiana Toll Road just west of theState Road 19 interchange.[14] TheMichigan State Highway Department officially requested switching the I-67 designation to a route from Benton Harbor to Grand Rapids in 1958, and in the process proposed the northerly extension of the original I-69 from the I-80/I-90/Indiana Toll Road to Lansing.[15] The I-67 designation was denied by theAmerican Association of State Highway and Transportation Officials which then assigned I-196 to the Benton Harbor to Grand Rapids route, west of theI-96 junction nearGrand Rapids.[16]
Indiana has proposed using the I-67 designation for the freeway upgrade ofUS 31 currently under construction betweenIndianapolis andSouth Bend, possibly continuing northward via the US 31 freeway toBenton Harbor, Michigan, and going northward from there along existingI-196 toGrand Rapids. The Indiana Senate unanimously passed a resolution calling for federal funding for this proposal and the I-67 designation in 2003.[17] Meanwhile, Indiana expedited the upgrading of three major sections on US 31 between Indianapolis and South Bend including the Kokomo Bypass. This was done using funds received through the 2006 Major Moves deal. Such a proposal would put I-67 in the proper place in the grid (it is the only number available for that route).
A third, much shorter, proposal in 2011 by the I-67 Development Corporation from theOwensboro, Kentucky, area involves continuing the proposed I-67 in Indiana along a route parallel toUS 231 fromCrane, Indiana, toBowling Green, Kentucky. Much of the proposed route already exists and is close to Interstate grade. Only the northern third fromDale, Indiana, to Crane remains unfinished. It would use theNatcher Bridge to cross theOhio River, Kentucky'sI-165 and Indiana's Lincoln Parkway, an expressway facility that would need to be fully upgraded to Interstate standards. It would go around the cities ofJasper andHuntingburg in Indiana as well as Owensboro,Hartford, andMorgantown, Kentucky, and end at Bowling Green. It could also be linked to the first proposal by overlapping I-67 with the currently under construction I-69 from Indianapolis to Crane.[18]
.svg) Future Interstate 169 | |
|---|---|
| Location | Union City toMartin, TN |
| Length | 15.00 mi (24.14 km) |
Interstate 169 is proposed to run along Tennessee State Route 22 fromUnion City toMartin.[19]
Future Interstate 195 | |
|---|---|
| Location | Washington |
| Length | 2.41 mi (3.88 km) |
The currentInterstate 695 will be eliminated and be replaced with an extension ofInterstate 395. The original Interstate 395 through the 3rd Street Tunnel will be renumbered as Interstate 195.[20]
.png) Future Interstate 214 | |
|---|---|
| Location | Bryan–College Station |
Interstate 214 is proposed to be a beltway around Bryan-College Station in Texas.[21]
.svg) Future Interstate 222 | |
|---|---|
| Location | Graysville toBrookside |
| Length | 2.26 mi (3.64 km) |
Interstate 222 is a futureauxiliary Interstate Highway that will be aconnector between I-22 and the proposedI-422 nearBirmingham, Alabama. There will be no exits other than its termini. The highway has been proposed because aninterchange directly between I-22 and I-422 cannot be built due to environmental issues.[22]
  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 connectUS 158, nearClemmons, North Carolina, toFuture I-74/Future I-285/US 52, inBethania. I-274 first appeared onNorth Carolina Department of Transportation (NCDOT) planning maps in the early 2000s but was later disused for over a decade since. On May 20, 2019, theAmerican 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.[23]
.svg) 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.[24]
.svg) Future Interstate 365 | |
|---|---|
| Location | Park City toSomerset |
| Length | 88.376 mi (142.227 km) |
Interstate 365 is a proposed redesignation of theCumberland 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.[25] The designation would need approval from AASHTO, the FHWA, and upgrades of several interchanges and other improvements before the designation could be implemented.
.svg) Future Interstate 369 | |
|---|---|
| Location | Henderson toOwensboro |
| 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.[26]
Future Interstate 380 | |
|---|---|
| Location | Akron toMacedonia |
| Length | 17.57 mi (28.28 km) |
Interstate 380 is proposed to start from the southern terminus of Ohio SR 8 at Akron to the intersection of I-271. The project has not been approved yet.[27]
.svg) Future Interstate 422 | |
|---|---|
| Location | south ofBessemer toArgo |
| Length | 52.5 mi (84.5 km) |
Interstate 422 is a proposed beltway inBirmingham. 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.[28]
.svg) Future Interstate 490 | |
|---|---|
| Location | Franklin Park toDes 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 nearChicago, Illinois; it will run along the west side ofO'Hare International Airport. The tollway will connectI-294 (Tri-State Tollway) to a western access point to the airport. From there, it will continue northward to an extension ofIllinois Route 390 (IL 390, formerly known as the Elgin-O'Hare Expressway) andI-90 (Jane Addams Memorial Tollway). It is proposed to be finished by 2027.[29]
.svg) Future Interstate 569 | |
|---|---|
| Location | Nortonville toBeaver 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.[30]
.svg) Future Interstate 685 | |
|---|---|
| Location | Montgomery |
| Length | 14.440 mi (23.239 km) |
Interstate 685 is planned to follow a portion of Interstate 85 when I-85 gets rerouted to the Montgomery Outer Loop.[31]
 Future Interstate 685 | |
|---|---|
| Location | Greensboro toDunn |
| Length | 89.200 mi (143.553 km) |
Interstate 685 is a proposed Interstate planned to run along currentUS 421. It will be upgraded to Interstate highway standards fromInterstate 40 in Greensboro toInterstate 95 in Dunn.[32]
.svg) Future Interstate 795 | |
|---|---|
| Location | St. Johns toJacksonville |
| 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 theFederal Highway Administration (FHWA) and theAmerican Association of State Highway and Transportation Officials (AASHTO).[33]
.svg) Future Interstate 905 | |
|---|---|
| Location | San Diego toOtay Mesa |
| Length | 8.964 mi (14.426 km) |
Interstate 905 in California is proposed to replaceCalifornia State Route 905, which connects San Diego to the Mexican border.[34]
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 ofBakersfield 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 or 9 to satisfy Interstate numbering convention.
 PrimaryInterstate Highways | |
|---|---|
| Signed | |
| Unsigned | |
| Lists | |
| Other | |
Routes initalics are no longer a part of the system. Major Interstates are highlighted. | |
