| Header Type: | UC | ||||||||
| Dwight D. Eisenhower National System of Interstate and Defense Highways | |||||||||
| Shields: |
| ||||||||
| Caption: | Shields for future Interstates | ||||||||
| Map: | Future Interstate Highways.jpg | ||||||||
| Map Notes: | Proposed Interstate Highways in December 2015 | ||||||||
| Formed: | June 29, 1956[1] | ||||||||
| Interstate: | Interstate X (I-X) | ||||||||
| Links: | I | ||||||||
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.
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.[2] [3]
See main article: Interstate 3.
| Header Type: | UC |
| Country: | USA |
| Type: | Future |
| Route: | 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 (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.[4] [5]
See main article: California State Route 99.
| Header Type: | UC |
| Country: | USA |
| Type: | Future |
| Route: | 7 |
| Future Interstate 7 or 9 | |
| Location: | Wheeler Ridge–Sacramento, CA |
Interstate 7 or 9 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(s) 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(s), 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 or I-9.[6] 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 System.[7]
See main article: U.S. Route 412 in Oklahoma.
| Header Type: | UC |
| State: | OK |
| Type: | Future |
| Route: | 42 |
| Location: | Noble County, OK to Springdale, AR |
| Length Mi: | 190 |
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).[8] [9] The bill, titled the "Future Interstate in Oklahoma and Arkansas Act", 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).[10] The language of the bill was later included in the Infrastructure Investment and Jobs Act . 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 to Interstate standards.
| Header Type: | UC |
| Country: | USA |
| Type: | Future |
| Route: | 67 |
| Location: |
See main article: U.S. Route 31 in Indiana.
Interstate 67 has been a proposed number for at least three highways.
Indiana has proposed using the I-67 designation for the freeway upgrade of US 31 currently under construction between Indianapolis and South Bend, possibly continuing northward via the US 31 freeway to Benton Harbor, Michigan, and going northward from there along existing I-196 to Grand Rapids. The Indiana Senate unanimously passed a resolution calling for federal funding for this proposal and the I-67 designation in 2003.[12] 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).
I-67 was originally the designation given to a never-built highway connecting Kalamazoo, Michigan, to the east side of Elkhart, Indiana, as part of the original Interstate numbering plan in 1957.[13] A planning map shows a freeway along this routing intersecting the Indiana Toll Road just west of the State Road 19 interchange.[14] The Michigan 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. The I-67 designation was denied by the American Association of State Highway and Transportation Officials which then assigned I-196 to the Benton Harbor to Grand Rapids route, west of the I-96 junction near Grand Rapids.[15]
A third, much shorter, proposal in 2011 by the I-67 Development Corporation from the Owensboro, Kentucky, area involves continuing the proposed I-67 in Indiana along a route parallel to US 231 from Crane, Indiana, to Bowling Green, Kentucky. Much of the proposed route already exists and is close to Interstate grade. Only the northern third from Dale, Indiana, to Crane remains unfinished. It would use the Natcher Bridge to cross the Ohio River, Kentucky's I-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 of Jasper and Huntingburg in Indiana as well as Owensboro, Hartford, and Morgantown, 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.[16]
| Header Type: | UC |
| Country: | USA |
| Type: | Future |
| Route: | 92 |
| Location: |
See main article: East–West Highway (New England).
As originally proposed by the Michigan State Highway Department in 1957, I-94 from Benton Harbor to Detroit would have been numbered Interstate 92. Since then, I-92 has been a proposed number for at least two highways.
Low population and natural barriers like the White Mountains have impeded economic development in northern New England. In the early 1970s, Maine, New Hampshire, Vermont and New York proposed two new Interstate Highway corridors:
The Federal Highway Administration ultimately did not approve these plans.
Northern New England is served by three north–south freeways radiating from Boston and by Interstate 91, which follows the Connecticut River. However, the northernmost complete east–west freeway in the region, Interstate 90 in Massachusetts, does not enter northern New England. East–west travel through northern New England is facilitated by three freeway segments:
Maine Senator Olympia Snowe said in 2004 that the region is disadvantaged by the fact that it was the only region in the US for which a federal High Priority Corridor was not designated in the 1991 Intermodal Surface Transportation Efficiency Act (ISTEA).[17] In 2012, the east–west highway was again proposed, this time as a privately financed toll road.[18]
Current backers of the highway propose an east–west axis through northern and central Maine, with three potential freeway links with Canada—two from Québec, and one from New Brunswick. One portion of the new highway would run from Interstate 395 in Brewer, Maine, to the Canadian border near Calais, with a direct link to New Brunswick Route 1, a major transportation corridor serving the Maritimes. A second would travel northwest from Interstate 95 near Waterville, Maine, to the Canadian border at Coburn Gore, with a connection to a proposed extension of Quebec Autoroute 10 toward Montreal. A third would travel due west from I-95 near Waterville, following the U.S. Route 2 corridor through Maine, New Hampshire, Vermont, and northern New York, with Quebec's Autoroute 73 having a southeasterly oriented southern end that heads for the Armstrong-Jackman Border Crossing, as Quebec Route 173 already reaches the United States at the same port of entry.
| Header Type: | UC |
| Country: | USA |
| Type: | Future |
| Route: | 98 |
| Location: | Watertown, NY – Swanton, VT |
See main article: U.S. Route 11 in New York.
As originally proposed by the Michigan State Highway Department in 1958, I-696 would have been numbered Interstate 98.[19] Since then, another highway in Upstate New York and Vermont has been linked to the number. Plans for the Rooftop Highway, a proposed limited-access highway that would extend for from Watertown, New York, to Swanton, Vermont, which I-89 travels through (at exit 21), first surfaced in the 1950s. If built, the highway would likely follow the US 11 corridor across the northern part of New York's North Country, connecting I-81 to I-89.
A study called the North Country Transportation Study Action Plan and Final Technical Report suggests that the road would likely be built to Interstate Highway standards due to a lack of infrastructure throughout the area. Backers of the project have called for the highway to be designated as I-98;[20] however, this designation has not been recognized by any government agencies, such as NYSDOT or the AASHTO. The number does fit into AASHTO's numbering system, though, as the highest even numbers are designated for highways running along the Canadian border, such as the proposed highway.[21]
The Northern Corridor Transportation Group (NCTG) was formed in December 2008 as a means of refocusing the fifty-year discussion on the project. Since that time, more than 100 municipal and civic resolutions from the five northern counties of New York have been passed in support of the construction of the project. On July 16, 2009, the NCTG submitted a request to U.S. Senator Kirsten Gillibrand to direct $800 million toward the project as part of the reauthorization of a federal highway transportation bill. In a historic move, the six northern legislators representing the North Country in the New York State Legislature (Senators Aubertine, Griffo and Little and Assembly Members Scozzafava, Russell and Duprey) signed an official letter of request to the same end.
| Header Type: | UC |
| Country: | USA |
| Type: | Future |
| Route: | 99 |
| Location: | Wilson, NC–Christiana, DE |
See also: U.S. Route 13 and Delaware Route 1.
In 2006, the Virginia General Assembly directed the Secretary of Transportation to initiate a study to determine the interest of affected states in the construction of a new Interstate highway (I-99).[22] [23] [24] I-99 would allow long-distance travelers to bypass the I-95 bottleneck in the Baltimore–Washington metropolitan area. This would be separate from the existing Interstate 99 in New York and Pennsylvania, and unlike the current route, would fall into its place on the numbering grid.
I-99 would travel from I-95 in Wilson, North Carolina, to another point on I-95 in Christiana, Delaware (12miles from Wilmington, Delaware). It would renumber the controlled access Delaware Route 1 and would parallel (or utilize an upgraded version of) U.S. Route 13 (US 13) through the Delmarva Peninsula and use the existing Chesapeake Bay Bridge–Tunnel. It would travel through Norfolk, Virginia, traveling concurrently with existing interstates where possible. I-99 would continue to travel parallel to US 13 until it enters North Carolina (which is itself in the process of being upgraded to an Interstate), where it would travel parallel to US 258 until ending on I-95 in Wilson.
Another option is for I-99 to parallel (or utilize upgraded versions of) US 17 in North Carolina, and have it end in Charleston, South Carolina (or Pocotaligo, South Carolina where it could rejoin I-95). Much of US 17 is a four-lane divided highway, but only short sections are currently freeway standard. One option that was never fully planned was to connect the proposed Christiana, Delaware, I-99 east coast section and the existing Bedford, Pennsylvania, I-99 section by having I-99 travel concurrently with existing interstates including I-476 and I-76.
See main article: Tennessee State Route 22.
| Header Type: | UC |
| State: | TN |
| Type: | Future |
| Route: | 169 |
| Location: | Union City to Martin |
| Length Mi: | 15.00 |
Interstate 169 is proposed to run along Tennessee State Route 22 from Union City to Martin.[25]
See main article: Interstate 395 (Virginia–District of Columbia).
| Header Type: | UC |
| State: | DC |
| Type: | Future |
| Marker Image: | none |
| Route: | 195 |
| Length Mi: | 2.41 |
| Location: | Washington |
| Header Type: | UC |
| State: | TX |
| Type: | Future |
| Route: | 214 |
| Marker Image: | none |
| Location: | Bryan–College Station |
This interstate is proposed to be a beltway around Bryan-College Station in Texas.[26]
| Header Type: | UC |
| State: | AL |
| Type: | Future |
| Route: | 222 |
| Location: | Graysville to Brookside |
| Length Mi: | 2.26 |
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.[27]
See main article: Winston-Salem Northern Beltway.
| Header Type: | UC |
| State: | NC |
| Type: | Future |
| Route: | 274 |
| Location: | Winston-Salem |
| Length Mi: | 16.83 |
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 16.83miles section would satisfy a great need to alleviate congestion in Winston-Salem and connect the western portion of the urbanized area.[28]
See main article: Interstate 310 (Mississippi).
| Header Type: | UC |
| State: | MS |
| Type: | Future |
| Route: | 310 |
| Location: | Gulfport |
| Length Mi: | 6.00 |
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.[29]
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.[30] The designation would need approval from AASHTO, the FHWA, and upgrades of several interchanges and other improvements before the designation could be implemented.
See main article: Audubon Parkway.
Interstate 369 is planned to follow the entire Audubon Parkway with the Western terminus to Interstate 69 being called Interstate 69 Spur.[31]
See main article: Ohio State Route 8.
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.[32]
See main article: Birmingham Northern Beltline.
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.[33]
See main article: Interstate 490 (Illinois).
| Header Type: | UC |
| State: | IL |
| Type: | Future |
| Route: | 490 |
| Formed: | 2025 |
| Location: | Franklin Park to Des Plaines |
| Length Mi: | 6.00 |
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 2025.[34]
See main article: Western Kentucky Parkway.
| Header Type: | UC |
| State: | KY |
| Type: | I |
| Route: | 569 |
| Location: | Nortonville to Beaver Dam |
| Length Mi: | 38.446 |
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.[35]
See main article: Interstate 85 in Alabama.
| Header Type: | UC |
| State: | AL |
| Type: | Future |
| Route: | 685 |
| Location: | Montgomery |
| Length Mi: | 14.440 |
This Interstate is planned to follow a portion of Interstate 95 when Interstate 95 gets altered on the Montgomery Outer Loop.[36]
See main article: U.S. Route 421 in North Carolina.
| Header Type: | UC |
| State: | NC |
| Type: | Future |
| Route: | 685 |
| Location: | Greensboro to Dunn |
| Length Mi: | 89.200 |
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.[37]
See main article: Florida State Road 9B.
| Header Type: | UC |
| State: | FL |
| Type: | Future |
| Route: | 795 |
| Location: | St. Johns to Jacksonville |
| Length Mi: | 5.508 |
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).[38]
See main article: California State Route 905.
| Header Type: | UC |
| State: | CA |
| Type: | I |
| Route: | 905 |
| Location: | San Diego to Otay Mesa |
| Length Mi: | 8.96 |
Interstate 905 in California is proposed to replace California State Route 905, which connects San Diego to the Mexican border.[39]
