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

Cactuses and crushed granite along freeway

01/15/2019

Where botany meets aesthetics: New freeway interchange landscaping

Hundreds of planted saguaros are just the start of what makes the finished Loop 303 and Interstate 10 interchange a site to behold.

Snow-play traffic jam on US 180 near Flagstaff

01/11/2019

Heading north for the snow? Good times can go bad without planning

Planning and some common sense are the keys to a safe trip to enjoy snow in Arizona's high country.

Construction scene at the West Seligman Bridges on Interstate 40 with a crane, equipment, traffic cone, and a white pickup truck.

01/10/2019

Progress continues toward better bridges connecting I-40, Route 66 in Seligman

See the progress we're making on replacing three bridge decks between Interstate 40 and Historic Route 66 near Seligman.

SR 286 freeway near Sasabe

01/09/2019

Adopt a Highway: 'All the Way to the Border' litter pickup coming to SR 286

Most Adopt a Highway segments are 2 miles. But an upcoming volunteer cleanup along SR 286 in southern Arizona aims to tackle 45 miles.

Thermal camera video frame grab showing wrong-way vehicle.

01/08/2019

See the I-17 wrong-way alert system in action

Early Monday, ADOT's I-17 wrong-way vehicle alert system alerted ADOT and DPS to a wrong-way driver on I-17.

Hi Jolly Monument Quartzsite AZ

01/06/2019

A visit to an unusual tomb in Quartzsite

A visit to an unusual tomb in Quartzsite erected in memory of a former camel driver.

Wide view of a multi-lane highway with moderate traffic, bordered by trees and buildings, with a hill in the background under a cloudy sky.

01/04/2019

New HD cameras paint a clearer picture of I-19 in Tucson

If a picture is worth 1,000 words, you might say drivers in Tucson now have 7,000 words to paint a vivid picture of their next trip on Interstate 19.

Image of yellow truck

01/03/2019

Throwback Thursday: Little truck that could

We're sharing the story of 60-year-old truck that has a special place at ADOT.

Highway electronic sign at night displays the message: DON’T MEET THE REAPER BUCKLE UP above lanes of traffic.

01/02/2019

Looking back at 2018 one safety message at time

Highway safety is important at ADOT and we work to keep it top of mind for drivers throughout the year.

Graphic listing South Mountain Freeway progress

12/27/2018

For South Mountain Freeway, 2018 has been a year of great progress

Here's a look back at the milestones on the largest single highway project in Arizona history.