ADOT Blog | Department of Transportation

Latest blog articles

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

A woman and a man, both wearing sashes and crowns, stand side by side in a gymnasium. The woman holds a bouquet and both are smiling. The sashes read 1992 and King.

09/23/2020

Adelante Nogales via SR 189

A part of ADOT employee Gaby Gonzalez Kemp's heart will always be in her hometown of Nogales. That's why she is glad to see the improvements coming to State Route 189.

09/22/2020

Adopt a Highway: National CleanUp day is in the bag

National CleanUp Day was this past Saturday - and by all accounts it was a phenomenal success!

09/21/2020

ADOT Highway Trivia Quiz #1

Put your Arizona highway knowledge to the test! Can you get them all right?

09/18/2020

Where Arizona rivers part ways

Do you know you can find the spot on Interstate 40 that determines which way water will flow? Let us show you!

Image of dilapidated stone wall with the words "Mountain Lions" painted on top

09/17/2020

Two Guns' sordid history off I-40

You may have seen a sign for this long-forgotten town while cruising down I-40, but did you know about its bizarre past?

Crane lifts bridge girder

09/16/2020

Bridge girders a big sign of progress at I-10 and Ruthrauff

If you are driving on I-10 in Tucson, you see the major progress happening at the Ruthrauff interchange.

Screenshot of the ADOT Travel ID Document Guide webpage showing progress steps and options to select the type of Travel ID to apply for.

09/15/2020

For the MVD, these awards are a big deal

Most drivers have never heard of the AAMVA Awards, but MVD employees, it's a big deal.

09/14/2020

Framing Arizona in the best light

Adopt a Highway volunteers help Arizona look her best. Now, volunteers can make others aware of the work they're doing to 'Keep Arizona Grand.'

Little Colorado River Bridge

09/10/2020

Big bridge history near little Cameron

What does it take to cross the Little Colorado River? The answer is more than a century and three different bridges.

A person wearing a green glove and jeans holds a dark-colored lizard with an orange tail in their hand.

09/09/2020

ADOT biologists help species and projects move forward

Why does a transportation agency have biologists? Good question! And here is the answer.