ADOT Blog | Department of Transportation

Latest blog articles

10/05/2025

PODCAST: Traffic engineering's role in safely connecting Arizonans

Where do speed limits come from? How are highways engineered, signed, striped, etc., to maximize safety? To explain these and other aspects of state highways, we're pleased to have State Traffic Engineer Kerry Wilcoxon as this week's On the Road With ADOT guest.

Adopt a Highway

10/01/2025

Volunteers bag 1.8 tons of litter on National CleanUp Day

See Adopt a Highway volunteers across Arizona caught in the act on National CleanUp Day 2025.

Specialty plates featured in September.

09/30/2025

September recap: Specialty Plate Spotlight

ADOT has more than 100 specialty license plates featuring a range of worthy causes or charities. To boost awareness, we showcase one specialty license plate each week on social media. We call this the "Specialty Plate Spotlight" and here are the plates that were featured in September.

Popular blog articles

04/25/2017

Providing an inside look at how ADOT inspects commercial vehicles for safety

New ADOT program aims to reduce commercial vehicle wait times at the international border and will help Mexican trucking firms better understand and prepare for safety inspections.

04/24/2017

Arizona's first pre-fab bridge saves $2.6 million

Check out a video showing Arizona's first prefabricated bridge going up in less than four days.

04/23/2017

Where in AZ??

Our weekly "Where in AZ??" challenge includes a unique hint in the foreground of the photo.

04/21/2017

Art of Transportation: It's a dirty job

If there's one job most can agree is dirty, road construction is usually it. Today's Art of Transportation photo highlights this.

04/20/2017

Zipper merge: In the right situations, two lanes can be better than one

The zipper merge is simple technique used when two lanes reduce to one and it'll soon be implemented on Interstate 10 in western Arizona.

04/19/2017

Coming Friday: Winners of ADOT’s Safety Message Contest

The winners of the ADOT Safety Message Contest will revealed on Friday!

04/17/2017

'Sunscreen' spares transplanted saguaros from sunburn

If you've noticed black netting on some saguaros transplanted along the Loop 101 Pima Freeway, here's an explanation.

04/16/2017

Where in AZ??

Join us our Facebook trivia challenge and tell us "Where in AZ??" this photo was taken.

04/14/2017

Art of Transportation: Hoover Dam

The Art of Transportation gives you a lesser-photographed view of Hoover Dam.

04/13/2017

Throwback Thursday: First Arizona license plates

We're taking a look back at Arizona's first license plates and how plates have changed over the years.