Public Survey Ends Sept. 1 for Pima County's Sonoran Corridor

ADOT seeks input on the proposed Sonoran Corridor freeway, which aims to connect Interstates 10 and 19 in Pima County.Photo byJC CervantesonUnsplash

TUCSON — The Arizona Department of Transportation (ADOT) is encouraging public feedback on the proposed Sonoran Corridor freeway in Pima County, which aims to connect Interstates 10 and 19 south of Tucson International Airport.

The public survey, which is part of the ongoing study for the project, will close on Sunday, Sept. 1, according to ADOT.

The survey will help determine interchange locations and other design features for the approximately 20-mile route, also known as State Route 410.

Additionally, the feedback will assist the ADOT study team in evaluating whether changing conditions in the rapidly growing area should influence the future alignment of the corridor, according to ADOT.

This study will:

• Envision a narrow 400-foot wide corridor within the identified 2,000-foot corridor that provides a continuous high-capacity freeway extending from I-19 to I-10 within Pima County.
• Identify environmental considerations and mitigation efforts.
• Identify interchange locations and design concepts.
• Develop other design features.

Public and stakeholder outreach will occur throughout the process, with public meetings scheduled for fall 2024 and spring 2025, and a public hearing in summer 2026, according to ADOT.

The project team encourages residents, business owners, and other community stakeholders to provide feedback, according to ADOT.

The Sonoran Corridor study begins in the west near I-19 and El Toro Road within the town of Sahuarita and extends eastward, connecting with I-10 at Rita Road.

The study will consider various alignment alternatives, including a “no-build” option, and will include a comprehensive analysis of environmental and community impacts.

The results will be included in the Design Concept Report and Tier 2 Environmental Impact Statement submitted to the Federal Highway Administration for review and approval, according to ADOT.

ADOT will provide advance notice to email subscribers and on the study webpage at SR410SonoranCorridorTier2Study.

For more information and to sign up to receive study updates by email, visit SR410SonoranCorridorTier2Study.