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

Rebar reminiscent of meerkats standing on hind legs

07/19/2019

Art of Transportation: Metal meerkats

Our photographer was seeing meerkats at the project to expand Pinnacle Peak over Interstate 17.

Black and white image of Claypool Tunnel

07/18/2019

Throwback Thursday: Claypool Tunnel

If you feel like a hike, you can visit the original highway tunnel that connected Superior and Miami.

07/17/2019

They're keeping Arizona grand by adopting high country highways

Some Adopt a Highway volunteers enjoy the mountains while clearing roadside litter near their cabins.

Graphic discouraging illegal use of red-dyed diesel

07/16/2019

Help us stop illegal use of red-dyed diesel

Do you know what red-dyed diesel is? Because using it in a vehicle that will drive on the highway is a crime and you can help stop that.

07/15/2019

Lend us your ears for quick rundowns of highway work

ADOT is now offering audio versions of the Weekend Travel Advisory and Roadwork Roundup.

Deck pour at I10 over Jimmie Kerr

07/12/2019

VIDEO: The logistics of a concrete deck pour

There's a lot of logistics and planning that goes into large products, like the concrete deck pour for the expansion project of I-10 in Casa Grande.

Superstition freeway sign across road

07/11/2019

Throwback Thursday: Zooming ahead on US 60

Today we're reliving a 1983 milestone for the Superstition Freeway in Mesa.

Freeway message board carrying message about wildfire prevention

07/10/2019

Seriously, don't park in tall grass

Those signs saying don't park in tall brush or don't drag chains? There's a serious reason for them.

Bridge pier in rearview mirror

07/09/2019

Art of Transportation: Snapshot of a snapshot

Today's Art of Transportation photo is a meta-level look at our project on I-17 and Pinnacle Peak.

Historic photo showing installation of dust storm alert system sign

07/08/2019

Driving Safety Home: Agency has long history of dust storm safety efforts

Building on efforts across the decades, we’re working on a dust detection and warning system on I-10 near the community of Picacho.