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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

b/w photo of a child seat in the front of a car
02/28/2019

TBT: Child seat technology, conventions change with the times

For this Throwback Thursday, we look back to a 1973, when safety standards were a little different than they are today.
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Stylized Grand Canyon artwork with text: Grand Canyon National Park Centennial 1919-2019 on a purple background.
02/27/2019

New highway signs celebrate Grand Canyon National Park's centennial

Take a look at signs that will grace state highways celebrating a park that draws millions each year from around the world.
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Snow blower at work along highway
02/26/2019

Snowblowers help dig out highways after heavy winter storms

Heavy winter weather this past week allows us to talk about how our two snowblowers are essential for clearing state highways that see a lot of snow.
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02/25/2019

ADOT employee helps save couple from carbon monoxide poisoning

Our employees see a variety of emergencies on freeways, but recently, thanks to some keen observation, one was able to help two motorists who faced a silent danger.
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02/22/2019

An ADOT tweetstorm about the big storm

Here are some of our weather-related tweets since Thursday morning, including on-the-scene reports from Flagstaff by our own Doug Nintzel.
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Yudi Lei, engineer in training
02/20/2019

Engineer-in-Training Program participants grow with ADOT

Those selected for the program delve into a variety of disciplines, helping each find the niche reflecting their passions and skills.
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Two white semi-trucks inside a large ADOT inspection facility with high ceilings and overhead lights.
02/19/2019

Qualified truck drivers from Mexico have almost perfect score

ADOT's International Border Inspection Qualification has helped Mexican truckers achieve a more than 99 percent success rate on safety inspections while crossing the international border.
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02/17/2019

Where in AZ??

We have another scenic spot for Arizona experts to identify!
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02/15/2019

Cyclists remain in The Loop with Ina Road improvements

Work to create a modern Ina Road interchange with I-10 maintains and improves connections with The Loop, a system of trails and bike routes in the Tucson area.
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Model displays 1931 license plate in Arizona Highways magazine
02/14/2019

Throwback Thursday: Arizona license plate, circa 1931

In the midst of the Great Depression the state Highway Commission came up with an idea to boost Arizona's copper industry through some unusual license plates.
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