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

Traffic Safety Division Display at the 1970 State Fair

10/14/2016

From the Archives: Talking safety at the Arizona State Fair is an ADOT tradition

The Arizona State Fair is a tradition for many including ADOT. We're taking you back to the '70s this week.

10/13/2016

Some advice we hope you never have to use

Even transportation officials need to be ready for the unthinkable -- a scenario involving someone with a gun.

10/11/2016

'Litter Lifters' group marks 35 years of helping keep the Prescott area beautiful

Meet some dedicated volunteers doing a dirty job to help keep Prescott beautiful.

10/10/2016

Art of Transportation: Beauty and the bridge

Two bridges are featured in this week's Art of Transportation.

10/09/2016

Where in AZ??

It's a holiday weekend, but we're still going to throw a 'Where in AZ??' challenge at you!

Tunnel along US 191

10/07/2016

Coronado Trail leads to Arizona’s heavenly high country

Coronado Trail, otherwise known at US 191, demands one’s attention and rewards drivers with challenges and beauty.

Bicyclists and traffic along rural state highway

10/06/2016

Driving Safety Home: Pay attention and share the road

As temperatures cool and more pedestrians and cyclists head out, take precautions and share the road.

Two men giving a presentation

10/05/2016

Transportation innovation event showcases exciting new ideas

ADOT was on hand for an Innovation Exchange Campaign event held this week in Tempe. Get a glimpse of the future.

Working on Sign Shop

10/04/2016

Leading continuous improvement takes ADOT's director into the sign shop

ADOT Director John Halikowski steps into his employees' shoes to learn what goes into making and installing highway signs.

10/03/2016

With a sign and message, Arizona aims to STOP domestic violence

Stop signs made by ADOT don't normally come in purple, and their message is normally limited to "STOP."