ADOT Blog | Department of Transportation

Latest blog articles

A concrete bridge with large support beams spans a deep red rock canyon under a cloudy sky.

02/10/2026

Waterhole Canyon Bridge is out-of-this-world

An odd-looking bridge in Northern Arizona is a gateway to some of Arizona's most spectacular scenery.

Samaritans Adopt a Highway Volunteers

02/09/2026

All the Way to the Border cleanup sees 100 volunteers

Hospitality and community support fuel Melissa Owen's 11th annual cleanup to reduce trash along State Route 286.

02/06/2026

PODCAST: Loop 101 Pima improvements complete; pavement upgrade coming

Joe Heller, ADOT's resident engineer in charge of the recently completed Loop 101 (Pima Freeway) project, visits On the Road With ADOT to discuss this $108 million improvement and a coming project there to use diamond grinding to provide a smooth, durable driving surface.

Popular blog articles

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.

Diagram showing cars using a zipper merge at a lane closure, with traffic cones blocking one lane and vehicles alternating to merge into the open lane.

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!

Sun-shielding netting on transplanted saguaros along a freeway

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.

A group of people sit around tables in a meeting room, discussing and writing on large sheets of paper.

04/12/2017

No "I" in team or in ADOT Partnering

Award recognizes transportation teams for successfully working together to deliver on time and on budget construction projects.