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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

A logo features the word ADOT with a stylized purple A and green DOT in bold, uppercase letters on a white background.
03/03/2015

Don’t Park Your Cars Yet: Arizona Still Needs its Highways for a Robust Economy

A balanced, multimodal approach to transportation is the best long-term solution for Arizona’s future.
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Screen shot of Twitter feed
02/27/2015

ADOT's Twitter account offers more than just trip tips

On Twitter, ADOT provides real-time traffic conditions to help the traveling public safely and swiftly navigate Arizona’s highways.
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Technical drawing showing slope mine benching detail with perspective and section views, labeled annotations, contour lines, and construction notes, titled DETAIL ES8.
02/25/2015

Transportation Defined: Minibenches, a closer look

Dirt has been a pretty popular topic for us. Today, we want to explain why we bench it. More specifically, why we minibench it.
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Three workers in orange jackets inspect a road severely damaged and lifted by a landslide in a rocky area.
02/24/2015

Engineers Week celebrates engineering contributions

Saying that engineers are an important part of ADOT is really kind of an understatement.
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Image of crews paving on US 89
02/20/2015

US 89 landslide: Final phase of the repair

The landslide-damaged stretch of US 89 has come a long way in the past two years...
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A crane and construction scaffolding are positioned near an overpass under repair, with traffic cones blocking part of the road.
02/12/2015

Key ADOT projects move forward this year in Phoenix, Tucson and statewide

We’re only a month in, but 2015 is already looking like it’ll be a big year for ADOT.
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US 89 Landslide Repair
02/11/2015

ADOT continues progress on US 89 landslide repair

After six months of extensive earthwork on the US 89 landslide repair project south of Page, ADOT is moving on to the final phase of the project to restore the highway.
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Workers in safety gear pour and spread concrete into a large hole at a construction site with machinery nearby.
02/10/2015

Crews repair, repave sinkhole on SR 89A

State Route 89A in the Oak Creek Canyon switchbacks (mileposts 387-390) was fully reopened this afternoon after crews repaired a sinkhole that had been discovered in the northbound lane on Saturday.
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A paved, empty highway curves through a desert landscape with rocky hills, dry vegetation, and scattered boulders under a partly cloudy sky.
02/04/2015

Work on a new climbing lane along SR 95 is underway

ADOT has begun construction of a northbound climbing lane on SR 95 to improve traffic flow through the Mohave Mountains region, about 10 miles north of Lake Havasu City (mileposts 190-195).
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Cans holding old and new asphalt
02/03/2015

Transportation Defined: Asphalt

When someone hears the word “asphalt,” they might picture the road that they drive on, but asphalt is actually one component of that surface.
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