ADOT Blog | Department of Transportation

Latest blog articles

ASU student checks irrigation along highway.

03/23/2026

ADOT partnership with ASU aims to optimize landscape water use

We're highlighting an ASU News article features a partnership that’s helping ADOT learn how to optimize water use in freeway landscaping. The ADOT Urban Freeway Landscape Water Use Efficiency Project nvolves graduate students who are part of ASU’s Arizona Water Innovation Initiative

Volunteer placing trash in ADOT bag

03/17/2026

Get involved: Join us for an Earth Day litter clean-up

Adopt a Highway volunteer groups and others are invited to help tidy up along state highways for Earth Day. Whether you are a seasoned volunteer or just looking to make a difference, your participation makes a measurable impact toward reducing roadside litter.

Sprayer applies fog seal to highway.

03/15/2026

PODCAST: One key way that ADOT extends the life of highway pavement

This week’s episode of On the Road With ADOT features two of our many team members involved in preserving Arizona’s vast investment in state highways and the use of fog seals to extend pavement life.

Popular blog articles

Image of Mule Pass Tunnel

04/11/2018

Mule Pass Tunnel has eased trip to-from Bisbee for 60 years

Completed 60 years ago, Mule Pass Tunnel cost the state $2 million. That's the equivalent of $17.2 million today.

Arizona State Capitol

04/10/2018

From the Director: Work zone safety is our responsibility

Work zone safety means something extra to us at ADOT.

04/09/2018

Clean freaks and neatniks wanted: Help keep AZ beautiful by joining Adopt a Highway

Adopt a Highway volunteers made big splash in 2017, but we could use even more help.

04/08/2018

Where in AZ??

Our "Where in AZ??" challenge features a more unusual roadside attraction.

Motorcycles on the road

04/06/2018

Look twice for motorcycles in April

As temperatures begin to rise, expect to look twice for motorcycles on the road.

04/05/2018

Throwback Thursday: In Flagstaff of 1966, parking was no sport

Boy, the cars took up more space. Men had crew cuts instead of fades. Birch Avenue just went one way. Those were the days!

First Bridge Opening on the South Mountain Freeway Loop 202 construction

04/04/2018

ADOT hits milestone for South Mountain Freeway construction

In a major milestone, ADOT completes first bridge spanning the future Loop 202 South Mountain Freeway.

I-40 Paving Roller

04/03/2018

Smoother highways coming to northern Arizona this year

ADOT is repaving or rebuilding more than 180 miles of Arizona's highways starting in April.

04/02/2018

Widening I-10: Getting our grub on

Grubbing. Yeah, it's a real word. We looked it up. ADOT will be grubbing along I-10 in preparation for new lanes.

04/01/2018

Where in AZ??

For those who have visited some of Arizona's more notable sites, this week's "Where in AZ??" should be an easy one!