Project Background

The U.S. 70 (future I-42) Corridor project between I-40 in southeastern Garner and Morehead City represents a significant undertaking involving multiple counties, particularly highway Divisions 4 and 2, which are overseeing various projects to upgrade segments of this corridor to interstate standards. By improving the movement of both people and goods along U.S. 70, this initiative seeks to enhance overall connectivity and stimulate economic growth in the region. The establishment of Interstate 42 will provide a more efficient and reliable transportation route, benefiting both local communities and the broader national transportation network, as well as improving safety and regional mobility and supporting economic development


Purpose and Need for the Project

In the spring of 2022, the USDOT informed state highway officials it had authorized NCDOT to sign a 10-mile segment of U.S. 70 near Clayton as Interstate 42. Before this change can be implemented, NCDOT will need to redesignate N.C. 42 in the same vicinity to avoid confusion with the drivers, and also redesignate U.S. 70 Business in the Clayton area as U.S. 70. 

(Colors correspond to colors on the map below.)

U.S. 70

Designation to be removed between I-40/U.S. 70/U.S. 70 Business in southeast Garner to U.S. 70/U.S. 70 Business in southeast Clayton

U.S. 70 Business    

I-40/U.S. 70 in southeast Garner to U.S. 70/U.S. 70 Business in southeast Clayton will be signed as U.S. 70

U.S. 70 

U.S. 70 ramp from I-40 to U.S. 70/U.S. 70 Business in southeast Clayton (Clayton Bypass) to be signed as I-42


To avoid potential confusion for travelers, a portion of N.C. 42 will also be resigned. 

Between N.C. 50 and current U.S. 70 Business the N.C. 42 designation will be removed

Between U.S. 70  (Clayton Bypass) and current U.S. 70 Business the N.C. 42 designation will be removed. 

N.C. 36

N.C. 42 between N.C. 50 and U.S. 70 (Clayton Bypass) will be resigned as N.C. 36

U.S. 70 (Clayton Bypass) between N.C. 42 and Ranch Road (S.R. 1560)  will be signed as I-42/N.C. 36

Ranch Road between  U.S. 70 (Clayton Bypass) to U.S. 70 Business will be signed as N.C. 36


The map below shows a graphical depiction of the changes listed above


Maps Below show individual changes to be made 

Sections shown are for submittal requirements only

Project Maps:

The following maps show the areas being dedesignated or redesignated.  (Clicking on the maps will open them in a new window for viewing or downloading)

Current U.S. 70 to be designated as I-42

Current U.S. 70 Business to be designated as U.S. 70

Current N.C. 42 to have designation removed 

Sections to be designated as N.C. 36


Project Comments


NCDOT accepts comments throughout all phases of project development.  

All comments will be taken into consideration, and carry equal weight, regardless of submittal method.

The public is encouraged to leave comments using this webpage, email, or leave a message using the project phone number and code:



Phone Number: 984-205-6615     enter project code   3374  to leave a message

Title VI Feedback

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Would you like to be added to the project mailing list for any updates?

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Do you have questions or comments regarding the designation of U.S. 70 as I-42?

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Do you have any questions or comments regarding the proposed redesignation/ naming of U.S. 70 Business to U.S. 70?

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Do you have questions or comments on the proposed redesignation/naming of portions of N.C. 42 and other roadways to N.C. 36?

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Do you have comments or questions on any other part of the information presented?

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