Following several years of study, technical analysis and input from communities and stakeholders, the Arizona Department of Transportation has selected a final 20.47 mile corridor through Pima County. The Final Tier 1 Environmental Impact Statement (EIS) and Record of Decision (ROD), which was released Friday, Nov. 5, identifies the selected corridor, which stretches between Interstates 19 and 10, south of the Tucson International Airport in Pima County. 

A continuous, access-controlled transportation corridor between I-19 and I-10 would:

• Improve access to future activity centers
• Improve regional mobility
• Improve connectivity
• Integrate the region’s transportation network
• Address existing and future population and economic growth
• Provide an alternative to avoid congestion on I-10 and I-19 

The combined Tier 1 Final EIS/ROD, along with its supporting documentation, is available on the study’s website at azdot.gov/sonorancorridor. In addition, hard copies of the combined Tier 1 Final EIS/ROD document are also available for viewing at the following locations during normal business hours: 

Southcentral District Office - 1221 S. 2nd St. Tucson. Please call to make an appointment. Phone: 520.388.4200

Joel D. Valdez Main Library, 101 N. Stone Ave. Tucson, AZ 85701 520.594.5500

Joyner-Green Valley Library, 601 N. La Canada Dr. Green Valley. Phone:  520.594.5295

Sahuarita Town Clerk’s Office, 375 W. Sahuarita Center Way. Phone: 520.822-8801

Subsequent Tier 2 environmental and engineering studies would need to be conducted as part of the NEPA process to further refine the selected 1,500-foot Sonoran Corridor to identify a recommended 400-foot freeway alignment and identify planned interchange locations and other project elements. 

The Final Tier 1 EIS includes a phased implementation plan with preliminary recommendations for how the Sonoran Corridor could move forward into Tier 2 studies. The phased implementation plan includes smaller segments of the selected corridor alternative that may advance as separate, independent projects. These studies, which are not yet funded, would include additional analysis and more opportunities for public review and comment.

For more information about the Sonoran Corridor Study or to view the project fact sheet, please visit  azdot.gov/sonorancorridor

General comments or questions about the study can be submitted to ADOT through the following methods:

Online: azdot.gov/sonorancorridor

Email: [email protected]

Phone: 1.855.712.8530

Mail: c/o ADOT Communications – Sonoran Corridor, 1221 S. 2nd Ave. Tucson, AZ 85713

Arizona Department of Transportation volunteers answered the call to participate on National CleanUp Day, Sept. 18, by removing more than 150 bags, or 2,053 pounds of trash from alongside Arizona’s highways. 

Forty groups from all corners of the state: Page, Yuma, Concho, Vernon, Show Low, Prescott, Chino Valley, Congress, Kingman, Lake Havasu City, Tucson, Bouse, Claypool, Sahuarita and Bullhead City, registered with ADOT for the event on the Adopt a Highway website. 

Adopt a Highway Program Manager Mary Currie said, “It’s a win for communities and the state of Arizona. One-day permits offer volunteers a way to explore one type of volunteer work among many, and to be a part of the litter solution. They get first hand experience on the process for adopting and how to conduct a litter cleanup safely. Our experience has been that some of these groups decide to complete the adoption for two-years and become regular caregivers of their segment”. 

More than half of the groups registering for the cleanup were new volunteers interested in participating for one day rather than a two-year adoption.

Every day Adopt a Highway program volunteers are giving back to Arizona somewhere in the state. ADOT strives to make it safe and as easy as possible for them to continue volunteering.  

These individual volunteers made a positive impact for drivers on the state highway system by removing all types of litter, including: cigarette butts, plastic bags and bottles, aluminum cans, and other unsightly trash. Car bumpers and refrigerator doors were also found along the way. A very dangerous type of trash for travelers.

Michele Michelson and her group of eight volunteers opted for a one-day permit to help clean up SR 89A in Prescott Valley. “We are all very proud to be here in this beautiful sunshine to keep the county, the town and our state clean. I saw ADOT’s post on facebook and registered. Here we are and we’ll do it again. Who doesn’t want to keep their community clean. Thank you ADOT for offering this opportunity.”

In return for a two-year permit and a sign recognizing their group’s segment, Adopt a Highway volunteers agree to:

Adopt a minimum of two miles of state highway

Always wear Federal Highway Administration required ANSI Class II Safety vests

Read a safety brief and watch a safety video before each cleanup

Contact ADOT before cleaning up their sections

File an activity report after each cleanup, telling ADOT how many bags of litter was collected

Clean their sections at least once and preferably three or more times per year

Motorists can support Adopt a Highway volunteers by slowing down where people are picking up litter and always driving with extra caution and care. 

To learn more about ADOT’s Adopt a Highway volunteer program, please visit azdot.gov/adoptahighway.