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Adopt a Highway volunteer lineup
06/12/2026

The heat is on: Safety tips for volunteers

Read about safety precautions for Adopt a Highway volunteers and anyone planning to enjoy the Arizona outdoors this summer.
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Arizona Wallet
06/11/2026

Arizona Wallet adds more features and functions

The Arizona Wallet app can now alert you when your vehicle registration is about to expire, directly on your smartphone. To learn more about the Arizona Wallet and the other digital wallet options available in Arizona, please visit azdot.gov/DigitalIDs.
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Photo from the Loop 101: Princess Drive to Shea Boulevard project.
06/10/2026

ADOT wins 5 awards for excellence in transportation partnering

The winners of the 2025 Arizona Transportation Partnering Excellence Award have been announced, and ADOT received five awards for roadway construction partnerships. The annual competition recognizes partnering processes and achievements...
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Popular blog articles

A large truck with an Oversize Load sign hauls an oversized red and white cargo trailer on a highway, accompanied by workers in safety vests.
03/27/2014

520-ton oversize load slowly makes its way through state

A majorly massive haul consisting of one (very big) transformer is being moved (very slowly) through Arizona to its final destination in Yuma.
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I-11 highway sign
03/25/2014

New I-11 signs mark congressionally designated corridor

New signs mark the future I-11 corridor between Phoenix and Las Vegas. They were installed by ADOT along US 93, a likely route for the proposed interstate.
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Bridge over the Virgin River on I15
03/21/2014

Major reconstruction of Virgin River Bridge No. 6 to begin on I-15

The largest project in more than 40 years on Arizona’s portion of I-15 will begin next week when ADOT starts on the reconstruction of Virgin River Bridge No. 6 in the far northwest corner of the state.
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Blog Default
03/20/2014

The Science of Transportation: Sieve Analysis

You might think that highway construction is all about big machinery, heavy-duty vehicles, massive structures and materials by the ton – but it’s not.
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03/13/2014

Look at the progress: Loop 303/I-10 traffic interchange

Check out the progress on the Loop 303/I-10 traffic interchange project.
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03/12/2014

Much effort needed to move I-11 from concept to reality

ADOT Director John Halikowski discusses I-11, along with the effort and cooperation needed to move forward.
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03/11/2014

Tentative Five-Year Construction Program ready for public comment

ADOT is asking for your thoughts regarding the 2015-2019 tentative five-year program.
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03/07/2014

A new milestone for Loop 303 project

West Valley drivers are going to notice a change at Loop 303/McDowell Road and Loop 303/Thomas Road come Sunday morning.
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Poster promoting public input for Arizonas Tucson-Phoenix rail study, with train images and comment deadline.
03/06/2014

Get your opinion heard, public comment period begins this week for ADOT's passenger rail study

As ADOT continues to study the feasibility of a passenger rail line between Phoenix and Tucson, the agency is looking to the public to provide input on the three alternatives that have been selected for further study.
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Black-and-white map showing Arizona’s state highway system, including Route 66 and Route 89, labeled by county.
03/05/2014

Numbering Arizona's highways

"Arizona's Transportation History" provides us with a look at how and why our state's highways were numbered.
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