Future Interstate 42 Oklahoma and Arkansas
Overview
The Oklahoma Department of Transportation (ODOT) and Arkansas Department of Transportation (ARDOT) submitted applications to the American Association of State Highway and Transportation Officials (AASHTO) for the Fall 2023 Meeting of the Route Numbering Committee for the designation of Interstate 42. The route is established to follow U.S. 412 between I-35 in Noble County, OK and I-49 in Springdale, AR. The application referenced that 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.
Mileage by State
| Oklahoma | 166.50 mi |
| Arkansas | 26.20 mi |
Data Sources
October 6, 2023 ODOT AASHTO Application for Future I-42












