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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

02/13/2019

Thinking outside the box at I-17 and Pinnacle Peak Road

Learn more about work to replace a box culvert at I-17 and Pinnacle Peak Road and why it's critical to a project to create a modern diamond interchange there.
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I10 widening
02/12/2019

Here's a thousand words and more about I-10 improvements

Interstate 10: Earley Road to Interstate 8If a picture is worth a thousand words, then slideshows of our I-10 widening projects in Casa Grande and the Eloy area are worth many thousands.
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US 60 sign redesigned for safety
02/11/2019

VIDEO: Coalition of national agencies honors ADOT for US 60 safety project

A video by the National Operations Center of Excellence features an ADOT engineer explaining the benefits from new striping and signs along a westbound stretch in Tempe.
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02/08/2019

Huzzah! ADOT engineers help reduce US 60 delays from Renaissance Festival

In partnership with festival organizers, we've helped reduce delays not just for attendees but for those heading to and from points east on US 60.
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Group of volunteers for the All the Way to the Border AAH cleanup
02/07/2019

Adopt a Highway: Annual cleanup closer to going ‘All the Way to the Border’

Now in its fourth year, one woman's dream of a one-day cleanup of all 45 miles of State Route 286 in southern Arizona is even closer to happening.
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Loop 101
02/06/2019

Be prepared: A motto for Boy Scouts and Loop 101 drivers in north Valley

Here are some tips to help cut down on frustrations while crews are doing the important job of widening 13 miles of the Loop 101 Pima Freeway east of I-17.
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02/05/2019

Earning a degree in engineering? Consider a career with ADOT

ADOT is part of career fairs held at the state's three public universities, with exciting opportunities for graduating engineering students.
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Four men stand in an office, two of them pointing at monitors, while the others observe. Computer screens and office equipment are visible.
02/04/2019

I-17 wrong-way pilot system continues drawing visitors from other states

A recent peer-to-peer exchange brought representatives of the North Texas Tollway Authority to ADOT's Traffic Operations Center.
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Aerial view of US 93 after widening
02/01/2019

US 93 improvements advancing with latest widening project

We've already widened 161 miles of US 93, the main route between Phoenix and Las Vegas, to divided four-lane highway. Now we're launching a project to widen nearly 4 more miles.
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A winding road leads to distant mountains under a dark, stormy sky with rain falling in the distance.
01/31/2019

With rain, snow coming this weekend, slow down for safety

After an extended stretch of dry weather, Arizona drivers should prepare for driving in the rain – or in snow at higher elevations – late this week and into the weekend.
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