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Quarterly volunteer adoptions background
03/07/2026

Meet the volunteers beautifying Arizona roadsides

These are just a few examples of the efforts made by our growing team of volunteers. See who's volunteering in your community and the accomplishments already being made to reduce litter.
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Website poster for ways to tour Route 66
03/06/2026

Route 66 centennial: Ways you can join a year of celebration

While Route 66 was officially decommissioned in the 1980s and replaced in Arizona by I-40, its centennial is a big deal for those of us in the highway business. In this post, we're pointing you to some of the ways Arizona cities and towns are celebrating:
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Map of Loop 303 project in North Valley
03/01/2026

PODCAST: Big Loop 303 improvements underway in the North Valley

Joe Heller, our resident engineer on a big project getting underway in the North Valley, joins On the Road With ADOT this week to explain what's coming over the next two and a half years, including a flyover ramp connecting northbound I-17 with Loop 303.
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Popular blog articles

07/12/2019

VIDEO: The logistics of a concrete deck pour

There's a lot of logistics and planning that goes into large products, like the concrete deck pour for the expansion project of I-10 in Casa Grande.
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07/11/2019

Throwback Thursday: Zooming ahead on US 60

Today we're reliving a 1983 milestone for the Superstition Freeway in Mesa.
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Freeway message board carrying message about wildfire prevention
07/10/2019

Seriously, don't park in tall grass

Those signs saying don't park in tall brush or don't drag chains? There's a serious reason for them.
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07/09/2019

Art of Transportation: Snapshot of a snapshot

Today's Art of Transportation photo is a meta-level look at our project on I-17 and Pinnacle Peak.
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Historic photo showing installation of dust storm alert system sign
07/08/2019

Driving Safety Home: Agency has long history of dust storm safety efforts

Building on efforts across the decades, we’re working on a dust detection and warning system on I-10 near the community of Picacho.
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07/07/2019

Where in AZ??

Join the herd and take our "Where in AZ??" challenge!
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Lightning during Monsoon
07/05/2019

The highly improbable story behind a shocking 511 image

If lightning never strikes the same place twice, we're glad an ADOT weather camera was able to catch this one-in-a-million shot of a strike near Holbrook.
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Two people work on the wing of a vintage Grand Canyon airplane parked on an airstrip under a clear sky.
07/03/2019

Aeronautics Group helped make us ADOT, continues serving airports

In 1974, the Arizona Highway Department and the Arizona Aeronautics Department merged to become ADOT. Today our Aeronautics Group continues to serve airports statewide.
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ADOT 45th anniversary logo
07/02/2019

From the Director: 45 years and counting

Since 1974, ADOT has combined functions once handled by the Arizona Highway Department, the motor vehicle services agency and the Arizona Aeronautics Department.
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Installation of Arizona Department of Transportation building sign
07/01/2019

Becoming ADOT 45 years ago today broadened our focus beyond highways

The big reorganization brought with it many new responsibilities for the department, including the addition of several new divisions.On July 1, 1974, the Arizona Highway Department officially became the Arizona Department of Transportation...
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