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Volunteer sign please help protect our beautiful earth at mile 9

Volunteers make spirits bright

ADOT is grateful to volunteers year 'round, and there is no better time to express our gratitude than during the holiday season.
Aerial view of I-17 wildlife overpass project

PODCAST: Catching you up on projects and more in Northern Arizona

This week's episode of On the Road With ADOT features Jeremy DeGeyter, administrator of ADOT's Northcentral District. Jeremy talks with host Doug Nintzel not just about the I-17 wildlife overpass project but the much-anticipated Lion Springs widening of SR 260 east of Payson, among other topics.
ADOT Map of Holbrook, Arizona, showing the project area along State Route 77 south of downtown. The highlighted section indicates the Little Colorado River bridge and nearby roadway scheduled for rehabilitation.

SR 77 Little Colorado River Bridge Rehabilitation

Project Cost: $2.4 million

This project is complete

The Arizona Department of Transportation has completed a project to rehabilitate the Little Colorado Bridge and roadway pavement along State Route 77 in Holbrook. The bridge is located south of Holbrook’s downtown area on the way to Snowflake.

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ADOT Map showing the project area along Seventh Street at Interstate 10 in Phoenix. Project limits are highlighted north and south of I-10 near McDowell Road, Roosevelt Street, and surrounding cross streets.
ADOT Map showing project areas for improvements along Interstate 10 in Phoenix. Work areas are highlighted at Seventh Street north and south of I-10, and at Elliot Road, Warner Road, Ray Road, and Chandler Boulevard west of I-10.

I-10 Cross Street Pavement Improvements

The Arizona Department of Transportation began work in January 2026 on improvements to several cross streets along I-10. There are two areas of Phoenix where the work will take place:

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I-17 Flex Lanes Open Ahead Sign
17 December 2025

I-17 Improvement Project reaches substantial completion milestone

If you’re packing up the kids and the presents and hitting the holiday road, you’ve got one more reason to celebrate this season, now that the new flex lanes are open and the I-17 Improvement Project
Arizona Transportation Institute logo

A national spotlight for ADOT's partnership with public universities

A video from American Association of State Highway and Transportation Officials (AASHTO) features ADOT director explaining the Arizona Transportation Institute and its goals.
A digital message board on the highway encourages motorists to drive safe.

Celebrate eight days of lights and safe driving

The holiday season is in full swing and with people gathering with family and friends to celebrate meals, traditions and more, we want to make sure you get safely to and from your destination. 

On the Road With ADOT logo

PODCAST: We’re talking about big Phoenix-area projects for 2026

Randy Everett, ADOT Central District Administrator, previews improvements on tap for the coming year, including freeway-to-freeway ramps at Loop 303 and I-17 and extending Loop 303 southward in the West Valley.
ADOT map for the US 191 Cochise Railroad Overpass Bridge Replacement Project showing the project area highlighted along US 191 between mileposts 62 and 63.8 near Cochise, Arizona. The map shows the Union Pacific Railroad crossing, nearby Interstate 10, milepost markers, and a north arrow, with the project segment indicated in orange.
Under construction

US 191 Cochise Railroad Overpass Bridge Replacement Project

The Arizona Department of Transportation is replacing the Cochise Railroad Overpass Bridge on US 191 between mileposts 62 and 63.8, near Cochise. Construction on this project began in December 2025 and is expected to continue through spring 2028.

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Expanded northbound I-17 off-ramp at Loop 303 in North Phoenix
12 December 2025

ADOT opens new lane at northbound I-17 off-ramp to Loop 303

ADOT has opened a second lane leading into and along the northbound I-17 exit at Loop 303 to provide more capacity for traffic, especially during busy rush hours. Learn more here.
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