Interstate 42

Interstate 42 North Carolina

Proposed Routing

U.S. 70 between Raleigh and Morehead City plays important roles, including being a primary hurricane evacuation route as well as being a major corridor for freight transport. The Interstate 42 corridor generally follows U.S. 70 southeasterly, connecting Garner, Clayton, Smithfield, Selma, Goldsboro, Kinston, New Bern and Havelock with the Port of Morehead City.

I-42 begins at a systems interchange with I-40 and Toll NC 540 (South Wake Expressway) near Garner and follows the Clayton Bypass southeast to U.S. 70 near Powhatan. U.S. 70 overtakes the freeway east to U.S. 70 Bypass at Selma. This section is not built to interstate standards, as a right in right out (RIRO) intersection with W Oak Street in Selma is one the deficiencies to be addressed.

Future I-42 follows U.S. 70 Bypass across I-95 between Selma and Smithfield. U.S. 70 rejoins the freeway south from Selma to U.S. 70 Business, where the freeway transitions to an at-grade expressway. Designated as Interstate 42 in Fall 2024, the next section of limited access highway along the U.S. 70 corridor is the Goldsboro Bypass. Extending 21.7 miles east to U.S. 70 near La Grange, this was formerly designated U.S. 70 Bypass.

A proposed 11.89 mile long bypass will take I-42 around the south side of Kinston, connecting with the existing controlled access and freeway portions of U.S. 70 east to New Bern. Southeast of New Bern, Future I-42 follows the Havelock Bypass west of Havelock. Ultimately I-42 will end near the Port of Morehead City.

In addition to connecting Morehead City with the Raleigh area, I-42 would also link Seymour Johnson Air Force Base and Cherry Point Marine Corps Air Station to the Interstate system.

The American Association of State Highway and Transportation (AASHTO) officials at the Fall 2021 meeting approved the request by the North Carolina Department of Transportation (NCDOT) for the establishment of Interstate 42 along 21.56 miles across Wayne and Lenoir Counties. NCDOT subsequently received approval by the Federal Highway Administration (FHWA) on March 16, 2022 to designate I-42 along two separate segments. The western section overlays U.S. 70 for ten miles in Johnston County from I-40 east to U.S. 70 Business / Exit 326  south of Clayton. The eastern section stretches 22 miles covering all of U.S. 70 Bypass to the north of Goldsboro and on a portion of U.S. 70 east to the exchange with NC 903 / Exit 372 near La Grange.5

Route Information

  • East End – Morehead City, NC

  • West End – Garner, NC

  • Branch Routes – 0

  • Mileage – 21.56

  • Cities – Garner, Clayton, Smithfield, Selma, Goldsboro, Kinston, New Bern, Havelock, Morehead City

  • JunctionsI-40 I-795
Begin Future I-42 - Clayton, NC

Future Interstate 42 corridor signs were posted at the eventual west end of the route along the Clayton Bypass in 2016. 12/15/16

Converting U.S. 70 to Interstate 42

The remaining controlled-access portions of U.S. 70 between Clayton and Morehead City are gradually being upgraded to freeway standards, and as each new section is constructed or upgraded, they will be submitted for inclusion into the Interstate system. Projects currently underway or planned for Interstate 42 include:

  • U.S. 70 Goldsboro Bypass – from just west of NC 581 in Wayne County to just east of Promise Land Road in Lenoir County. Built in three stages, the western half of the 20 mile long bypass was complete from U.S. 70 in Wayne County to Wayne Memorial Drive by October 2015. The remaining 12.5 mile connection back to U.S. 70 in Lenoir County opened May 27, 2016.4 An additional 6.7 miles of U.S. 70 will be upgraded to Interstate standards from the Goldsboro Bypass to Princeton once funding is made available.
  • U.S. 70 Kinston Bypass – previously unfunded per the NCDOT 2016-2025 State Transportation Improvement Plan,2 the 2018-27 plan allocates $381.1 million for the project. A southern alternative of a U.S. 70 bypass near Kinston was preferred over several northern alternatives. Estimated costs were $181 million.2 Alternative 1SB was selected and a Final Environmental Impact Statement (FEIS) and Record of Decision (ROD) was previously expected in 2022-23. Right of way acquisition was anticipated for 2026 with construction to be determined. However due to a lack of funding, the FEIS is now anticipated for 2026 and the ROD in 2027.
  • U.S. 70 Improvements in James City – this project makesimprovements to the U.S. 70 corridor through the James City area from south of the exchange with U.S. 17 to south of Garner Road. Construction on the $322 million project runs from Spring 2022 to late 2024 mid-2027.
  • U.S. 70 Havelock Bypass – from north of the Havelock City limits and extending south for approximately 10 miles to north of the Craven-Carteret county line. At an estimated cost of $323 million, construction on the limited access bypass started in September 2019. The bypass opened to traffic on December 19, 2025 while punch list work extends through Winter 2026.

U.S. 412 in Oklahoma and Arkansas

The Oklahoma Department of Transportation (ODOT) and Arkansas Department of Transportation (ARDOT) submitted applications to AASHTO for the Fall 2023 Meeting of the Route Numbering Committee to establish U.S. 412 between I-35 in Noble County, OK and to I-49 in Springdale, AR as Interstate 42. The proposed route is 190 miles in Oklahoma, using the Cimarron Turnpike east toward Tulsa and the Cherokee Turnpike east beyond Tulsa. The proposed 11 miles in Arkansas include Arkansas Route 612 along the Springdale Northern Bypass.

The premise behind numbering U.S. 412 as I-42 along this corridor relates to the similarity in numbers. However, with an already established Interstate 42 in North Carolina, AASHTO approved the application with condition. The numbering conveys that the two corridors may be joined at some point, which is not going to be the case. As such, both states withdrew their respective applications for further review.

High Priority Corridor

Proposed Interstate 42 is part of the Fixing America’s Surface Transportation (FAST) Act high priority future Interstate corridor, which is designated as Corridor 82.

History

Defined as High Priority Corridor #82 from the December 2015 Fixing America’s Surface Transportation (FAST) Act, U.S. 70 between Garner and Morehead City became designated as a future interstate corridor. While a few designations were proposed (I-46 by the Transportation Alliance and I-50 by the Super 70 Corridor Commission), the North Carolina Department of Transportation (NCDOT) had submitted Interstate 36 for the 137 mile long corridor. The I-36 proposal was discussed at the May 24, 2016 American Association State Highway and Transportation Officials (AASHTO) Special Committee on U.S. Route Numbering meeting, but instead of the I-36 designation, AASHTO officials approved Interstate 42 for the U.S. 70 corridor.3 With an official number assigned for the corridor between I-40 and Morehead City, “Future I-42” signs could be installed along various segments, pending approval from the Federal Highway Administration (FHWA).3

Also, unlike Interstate 36, the I-42 designation fits into the Interstate system number grid, following a course completely north and east of I-40.

East End US 70 – La Grange, North Carolina

The eastern end of Interstate 42 will eventually connect with U.S. 70 in the Morehead City area. The easternmost freeway portion completed is the Havelock Bypass, which ties into U.S. 70 north of Newport.

US 70 West at I-42

US 70 west at Exit 370 where Interstate 42 begins

Interstate 42 begins west along the Goldsboro Bypass just outside the town of La Grange. U.S. 70 continues west from the trumpet interchange at Exit 370 to Walnut Creek and Elroy. 07/29/25

Interstate 42 west of the separation with US 70 near La Grange, NC

The first reassurance marker posted for Interstate 42 westbound precedes the Johnston County line. 07/29/25

West End I-40 NC 540 – Garner, North Carolina

I-42 West at I-40 NC 540

I-42 one and a half miles ahead of I-40 and NC 540 (Triangle Expressway)

Construction started in 2019 for the Triangle Expressway Southeast Extension (NC 540) built the systems interchange joining the toll road with I-40 and I-42 in place of the trumpet interchange at Exit 308. 07/29/25

I-42 west 0.75 miles ahead of I-40 and Toll NC 540

U.S. 70 formerly overlapped with I-40 north from the west end of the Clayton Bypass to the succeeding exit at Garner. 07/29/25

I-42 west a quarter mile from the exit for I-40 west to Raleigh, NC

Left Exit 1 comprises a lengthy directional ramp curving southward onto I-40 east ahead of NC 36. 07/29/25

I-42 west at the exit for I-40 west to Raleigh, NC

Interstate 40 travels north to I-87/440 at Southeast Raleigh. U.S. 70 crosses I-40 west at Garner along an arterial route to U.S. 401. 07/29/25

Interstate 42 west concludes at the ramp separation for I-40 east and NC 540

Left Exit 1 comprises a lengthy directional ramp curving southward onto I-40 east ahead of NC 36. 07/29/25

The ramp separation for I-40 east and the Triangle Expressway (TriEx)

I-40 runs south to Interstate 95 near Benson. The Triangle Expressway travels west to Apex and north to Durham. 07/29/25

NC 540 East atI-40 I-42

NC 540/TriEx east one mile from I-40/42 near Garner

The Triangle Expressway temporarily ends at the eastbound beginning of Interstate 42. Construction is underway to complete the toll road north to I-87. 12/21/24

NC 540/TriEx east at Exit 36 near Garner

NC 540 east reduces to two lanes where all traffic transitions to Exit 36 for I-40 and I-42 east. 12/21/24

NC 540/TriEx east at Exit 36 for I-40/42

All traffic on Toll NC 540 east shifts onto Exit 36. 12/21/24

NC 540/TriEx east at Interstate 42 near Garner

Exit 36 expands to three lanes ahead of the ramp for I-40 east to Benson and Wilmington. Two lanes continue to I-40 west and I-42 east. 12/21/24

NC 540 east at I-40 east to Wilmington

A lane drop follows for I-40 west to Raleigh, with a single lane transitioning onto the eastbound beginning of Interstate 42. 12/21/24

Toll NC 540 east at I-40 west to Raleigh

The left exit for I-40 west joins the westbound roadway of I-42 ahead of Interstate 40. 12/21/24

I-40 East at I-42

I-40 east two miles ahead of US 70 and Future I-42.

Part of the Complete 540 construction project, road work through 2024 replaced the trumpet interchange (Exit 309) along I-40 at U.S. 70 with a turbine interchange joining the toll road with both I-40 and I-42. 12/27/22

I-40 east 1.5 miles from US 70/Future I-42 east and Toll NC 540 west.

Exit 309 for U.S. 70 east to Clayton was replaced by a new ramp preceding the connection to Toll NC 540 (Triangle Expressway) west. 12/27/22

I-40 east ahead of New Bethel Church Road and Exit 309 to US 70/Future I-42.

Exits for both I-42 east to Smithfield and the Triangle Expressway (TriEx) west separate from I-40 eastbound beyond the New Bethel Church Road (SR 2703) overpass. 12/27/22

I-40 east at US 70/Future I-42 east to Clayton and Smithfield, NC.

Interstate 42 branches east from I-40 near Garner to Goldsboro. The TriEx leads west to Fuquay-Varina and Holly Springs. 12/27/22

I-42 East

I-42 east of I-40/NC 540 near Garner

The first confirming marker for Interstate 42 east. 12/21/24

Sources

  1. U.S. 70 Kingston Bypass, NCDOT website.
  2. Strategic Transportation Investments, NCDOT website.
  3. “North Carolina Gains Names for Two New Interstate Designations.” NCDOT website.
  4. “U.S. 70 Goldsboro bypass opening Friday”, www.witn.com (news and TV).
  5. “Interstate 42 Coming to Eastern N.C. Corridor.” North Carolina Department of Transportation (NCDOT), press release. March 16, 2022.

Page updated January 5, 2026.