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Latest blog articles

AAH four Tucson volunteers and bagged trash
09/25/2026

National CleanUp Day volunteers bag 2.6 tons for Arizona

See volunteers caught in the act besting seven prior cleanup records for National CleanUp Day.
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ADOT Route 66 100 image
09/15/2026

Adopt a Highway: Route 66 Centennial Cleanup

Join us in the great outdoors for a special cleanup along Arizona’s legendary Route 66, also known as the Mother Road, Main Street of America and the Will Rogers Highway.
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MVD photo law update
09/14/2026

Time to update your MVD photo

Beginning September 12, Arizona law, A.R.S. 28-3173, adjusts the time frame to update your MVD photo from 12 years to 16 years. Those with a standard driver license or ID and an old photo may receive a letter in the mail explaining it is time to update your photo.
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Popular blog articles

511 Travel Info sign along a highway.
05/21/2019

511 Logo Signs: Build your brand – and a road

This summer we are rolling out new highway signs to both promote the 511 phone line, attract business sponsorship and generate funds to maintain roads.
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Northern Arizona roadwork
05/20/2019

With summer here, projects in northern Arizona ramp up

As summer starts again, its now warm enough for work on several road improvement projects in northern Arizona.
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05/17/2019

Infrastructure Week: It requires attention, care and support to help grow our future

ADOT Director John Halikowski explains why everyone needs to realize the importance of infrastructure and protect its value by making investments for the future.
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05/15/2019

From the Director: Voting open for ADOT Safety Message Contest

The entries are reminders that the best way to make roads safer is changing our own driving habits and encouraging those around us to change theirs.
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A white semi-truck drives under a concrete overpass under construction, with cranes and unfinished sections visible; blue sky with scattered clouds above.
05/15/2019

Infrastructure Week: Keeping traffic flowing is a straddle bent's job

When a pier needed to support a ramp would otherwise need to be in the middle of travel lanes below, ADOT engineers call on this support structure that straddles traffic.
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Construction workers and machinery lay concrete barriers on a multi-lane highway with traffic signs and equipment visible along the road.
05/14/2019

Infrastructure Week: Consider the Jersey barrier

Here's a look at the simple engineering behind the ubiquitous work zone concrete barrier.
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05/13/2019

40th Street improvements begin immediately for South Mountain Freeway

South Mountain Freeway crews are wasting no time moving onto the final phase of construction for the 40th Street traffic interchange in Ahwatukee.
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Queen Creek Tunnel
05/13/2019

Infrastructure Week: Let us count the ways

What does infrastructure mean when it comes to Arizona's highway system? Here are some numbers.
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State Route 67 with snow off to the sides
05/10/2019

Highway History: State Route 67

State Route 67, also known as the Jacob Lake to Grand Canyon Highway, is one of Arizona's most scenic summer drives.
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Black Canyon Highway ribbon cutting
05/09/2019

Throwback Thursday: How I-17 came to be

Interstate 17, the Black Canyon Highway, was dedicated 55 years ago. Here's the story behind this important north-south link.
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