ADOT Blog | Department of Transportation

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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.

A digital message board on the highway encourages motorists to designate a driver.

03/14/2026

Don’t leave it up to luck: Designate a driver this St. Patrick’s Day

With St. Patrick’s Day around the corner, we want to take a moment and remind everyone to plan ahead so you get home safely after the festivities. If you’re out on state highways this weekend, you may notice some of our overhead message...

Popular blog articles

Construction workers building tunnel

08/14/2015

From the Archives: Deck Park Tunnel construction

In honor of its 25th birthday, we’ve focused on the Deck Park Tunnel all week but we’re not done yet.

Old photo of tunnel and people wearing hard hats

08/12/2015

From the Archives: Deck Park drainage tunnels

The Deck Park Tunnel isn’t technically a tunnel - it’s actually made up of 19 bridges that are lined up side by side, creating a tunnel effect for motorists. But there are actual, honest-to-goodness tunnels that were dug during the project.

Aerial photo of I-10 Deck Park Tunnel soon after opening

08/10/2015

The Deck Park Tunnel turns 25 today

Do you know what you were doing 25 years ago today?

08/07/2015

Traffic Incident Management helps to clear incidents, reduce congestion

Traffic Incident Management is valuable because every minute counts when responding to the scene of a traffic incident.

Cars drive through a wide, well-lit tunnel with multiple lanes; bright light is visible at the tunnels distant exit.

08/06/2015

Happy 25th birthday, Deck Park Tunnel!

Twenty-five years ago, the last segment of Interstate 10 was completed and it happened in Phoenix.

Red light

08/04/2015

Safety is the goal during National Stop on Red Week

National Stop on Red Week aims to educate drivers about the dangers of red-light running and to reduce the number and severity of crashes.

07/30/2015

ADOT expands hours and days when travel times are displayed above Phoenix-area freeways

Message boards are now displaying the estimated travel times seven days a week, from 5 a.m. to 11 p.m. weekdays and 7 a.m. to 9 p.m. on weekends.

07/29/2015

US 89 improvement underway south of Page

Crews are working on improvements to an eight-mile segment of US 89, about 30 miles south of Page.

07/24/2015

Adopt a Highway volunteers keep roadways beautiful

The Adopt a Highway program is an opportunity for community members to help keep our highways litter free.

07/23/2015

Hell Canyon bridge replacement project is underway

ADOT is working to construct a wider bridge while limiting SR 89 traffic impacts during construction.