ADOT Blog | Department of Transportation

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Aerial view of Hance Park.

08/10/2026

Forever linked: The I-10 tunnel and Hance Park have different birthdays

While the I-10 Deck Park Tunnel turns 36, younger "sibling" Margaret T. Hance Park maintains its place as a space for the community to gather.

Loop 303 project

08/07/2026

Big freeway construction project is in its early stages south of I-10 in Goodyear

The opening of a well-known travel center featuring a beaver mascot in Goodyear made a lot more news this summer than the start of ADOT’s latest freeway construction project, also in that West Valley city. The project to extend Loop 303...

Close-up view of textured grooves on a concrete road surface, with blurred vehicles and highway scenery in the background under a partly cloudy sky.

08/05/2026

What is diamond grinding?

You may have heard that diamond grinding is currently being used on the SR 51, I-10 to Shea Blvd pavement project and the pavement improvement projects on the Loop 101 Agua Fria and Pima freeways. But what does that actually mean? Diamond...

Popular blog articles

Workers inside the Deck Park Tunnel

04/08/2021

Throwback Thursday: Time tunnel

Today we look back on an integral piece of interstate infrastructure.

Two parallel bridges span a river, one modern with smooth arches, the other older with intricate truss design.

04/07/2021

Original Salt River Bridge a 'beautiful piece of filigree'

What do you get when aesthetics meets a pressing transportation need? A beautiful strip of metal like the original Salt River Canyon bridge.

A graphic showing a scenic desert road with safety tips for day trips: bring water, snacks, medications, phone, wipes, and face covering.

04/06/2021

Prepare in advance for highway trips as we transition to warmer weather

Winter is in the rearview mirror, which means we go from advising people to be prepared for winter driving conditions to preparing people for summer driving conditions!

SR89 Adopt-a-Highway sign

04/05/2021

Adopt a Highway: Congress RVers keep SR 89 grand

Tucked away between Wickenburg and Congress Junction along State Route 89 is an unique community with a volunteer spirit that's hard to beat.

Road sign of cow with a parachute.

04/02/2021

Ask ADOT: Flying cows

We recently fielded a question about whether parachuting cows is a pervasive problem in our state.

A smiling woman beside bold text: Distracted drivers terrify me. azdot.gov/terrify.

04/01/2021

Distracted Driving Awareness Month a yearly reminder to pay attention

It's April Fools Day, but we don't want you to be a fool on the road. Driving distracted is a leading factor in fatal crashes.

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.

03/31/2021

Zipper merge eases traffic - and your dilemmas

Does merging present a dilemma for you? Then let us introduce the zipper merge to help!

Emergency Repairs US 89 north of Flagstaff near Cameron

03/30/2021

ADOT begins permanent repairs to US 89 section that washed out in 2018

Flooding and heavy rain took our a section of US 89 near Cameron. Now, we're working to make permanent repairs to the damaged section of highway.

03/29/2021

Get creative with the ADOT Safety Message Contest

We're looking for unique safety messages from you again this year!

Anti-icing stripes on freeway

03/26/2021

Ask ADOT: What are those weird white lines on the road?

We often receive questions when it comes to winter weather and today's question is fairly common.