North-South Corridor

The final selection of the 55-mile North-South Corridor through Pinal County starts at U.S. 60 in Apache Junction and proceeds south to Interstate 10 in Eloy.

PHOENIX — The Arizona Department of Transportation has selected a final 55-mile North-South Corridor through Pinal County.

The selection is part of the Final Tier 1 Environmental Impact Statement and Record of Decision. The Tier 1 EIS identifies the selected corridor, which stretches from U.S. 60 in Apache Junction to Interstate 10 in Eloy.

The study also incorporates a proposed extension of State Route 24 from Ironwood Drive to the North-South Corridor. The Final Tier 1 EIS, conducted in accordance with the National Environmental Policy Act, incorporates changes based on comments received on the Draft Tier 1 EIS, which was released for public review and comment in October 2019, as well as updated analysis based on new information.

According to ADOT, the purpose of the North-South Corridor study is to enhance the area’s transportation network to accommodate the current and future population and employment growth, improving access to future development and other centers of activity, improving regional mobility, providing an alternative to and reducing congestion on Interstate 10, improving north-to-south connectivity and integrating the region’s transportation network.

The public is invited to view the Final Tier 1 EIS/ROD by visiting the study website at Hard copies are also available during normal business hours at the following repository locations:

  • Eloy Santa Cruz Library, 1000 N. Main St. in Eloy. Phone: 520-466-3814
  • Coolidge Public Library, 160 W. Central Ave. in Coolidge. Phone: 520-723-6030
  • Florence Community Library, 778 N. Main St. in Florence. Phone: 520-868-7500
  • Apache Junction Public Library, 1177 N. Idaho Road in Apache Junction. Phone: 480-474-8558
  • Queen Creek Library, 21802 S. Ellsworth Road in Queen Creek. Phone 602-652-3000

Because the Record of Decision represents the final decision on the Tier 1 EIS, there is no formal review or comment period for the Final Tier 1 EIS.

Future Tier 2 environmental and engineering studies would need to be conducted to further refine the selected 1,500-foot North-South Corridor to identify a recommended 400-foot-wide freeway alignment, as well as the location of interchanges and other project features.

The Final Tier 1 EIS includes a proposed phased implementation plan for how the North-South Corridor will move forward into the Tier 2 studies as smaller segments of the corridor advance as separate, independent projects. These studies, which are not yet funded, would include additional analysis and more opportunities for public review and comment.

General comments or questions about the study can be submitted to ADOT at

Mail: c/o ADOT Communications — North-South Study, 1655 W. Jackson St., Mail Drop 126F, Phoenix, AZ 85007.