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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.
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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...
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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...
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Popular blog articles

07/20/2016

Art of Transportation: A peek at a girder being set

In today's Art of Transportation installment, we view crews placing a girder on the I-10/Prince Road overpass in Tucson through a cement block.
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A massive dust storm approaches a highway, obscuring visibility and covering the landscape in dust.
07/19/2016

Not all dust storms are the same

You've probably heard of the a dust storm and a haboob. Did you know there are three different types of dust storms and how to tell them apart?
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Aerial image of roadway
07/18/2016

Transportation trivia: What's a freeway vs. a highway?

Is it a freeway or a highway? Let's discuss the similarities and differences and how ADOT goes about assigning the terms.
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Visibility during dust storm
07/15/2016

Spanish Blog: ¡CUIDE SU VIDA, ORÍLLESE!

Today’s blog, for our Spanish-speaking audience, covers tips on driving in a dust storm. It’s always best to avoid driving into a dust storm, but if you encounter one, you’ll know what actions to take.
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07/14/2016

Road Trip: The I-15 Virgin River Corridor is a hidden engineering marvel

When Arizona’s portion of I-15 opened to traffic in 1973, it was the most expensive rural interstate construction project to date.
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07/13/2016

Gaming and driving don't mix

Enjoy the new app, Pokémon Go, but be responsible and don't game and drive.
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07/13/2016

From the Director: FASTLANE grant monies coming to ADOT

ADOT is in line to receive a $54 million federal grant to help fund two key widening projects on Interstate 10 between Phoenix and Tucson.
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07/12/2016

The Quiet Man and the public invited to John Wayne Parkway project meeting

Information will be provided on the alignment revisions for the SR 347 at Union Pacific Railroad project on Thursday, July 14.
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07/11/2016

Art of Transportation: Majesty below the cliffs near US 89A

Today's Art of Transportation blog features a photograph taken between SR 89A and Lees Ferry.
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Girder installation at Bell and Grand
07/08/2016

Girder installation a big step forward for Bell/Grand project

Setting girders for an overpass carrying Bell Road across Grand Avenue (US 60) in Surprise is another sign that ADOT is on track to reopen Bell by November.
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