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Image of USPS stamp pane featuring eight different stamps.
05/05/2026

ADOT’s director helps dedicate Route 66 postage stamps

The Route 66 centennial is a big deal here at the Arizona Department of Transportation. That’s why our director, Jennifer Toth, gave opening remarks today at a U.S. Postal Service ceremony in Phoenix dedicating stamps honoring the historic route’s 100 years as of this coming November.
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Image showing rendering versus actual photo of a portion of the I-40/US93 interchange in Kingman
05/05/2026

Renderings vs. reality at I-40/US 93 interchange in Kingman

When ADOT commissioned a bird’s eye video rendering of the I-40/US 93 interchange project in Kingman, we never could have imagined there’d be an opportunity to see just how realistic the images would turn out when viewed from above.
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Cars driving on a highway.
05/04/2026

Summer is almost here. It’s time to prep your vehicle for the heat

If you live in Arizona year-round, there’s one thing for certain: You cannot escape the summer heat. Sometimes, we can’t even escape summer-like temperatures in March. But, during Heat Awareness Week (May 4-8), ahead of the brunt of summer...
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Popular blog articles

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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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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02/28/2014

I-17 climbing lane project moves to next phase

One of the most visible projects on Interstate 17 is moving onto the final phase of construction.
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Cars driving on a highway next to an overpass under construction, with a stadium in the background.
02/27/2014

Progress can be seen on Loop 101 ramps in Glendale

The future Loop 101 HOV-lane ramps at the Maryland Avenue Bridge have truly taken shape near the Westgate City Center, Jobing.com Arena and University of Phoenix Stadium.
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