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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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AAH volunteer group
08/05/2026

Route 66 Centennial cleanup

Join us for a special cleanup along a stretch of Arizona’s legendary Route 66 also known as the Mother Road, Main Street of America and the Will Rogers Highway.
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ECD performing truck inspection
08/07/2018

From the Director: Success means safer roads and expanding economy

Our International Border Inspection Qualification program has made a dramatic difference for truck drivers and trucking firms in Mexico, and for international commerce.
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Section of freeway sound wall inspired by Frank Lloyd Wright
08/06/2018

Freeway designers draw inspiration from Frank Lloyd Wright

In designing the future Loop 202 South Mountain Freeway, ADOT found inspiration from one of Arizona's most influential residents - the late Frank Lloyd Wright.
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Gemba walk inspection of freeway pump
08/03/2018

Director's visit shows what keeps freeway pumps working

ADOT's director does a "gemba walk" at a freeway pump station.
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08/02/2018

Art of Transportation: An impressionist view of traffic control devices

Today's Art of Transportation gives us an Impressionist view of the familiar orange traffic barricade.
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08/01/2018

Community pride and the kitchen sink: Meet the Prescott Litter Lifters

Prescott Adopt-a-Highway group goes back decades.
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07/31/2018

Concrete crash cushions designed to reduce collision damage

When motorists veer out of control off the highway, traffic safety engineers have developed barriers designed to soften collisions with a wall, pole or other immovable objects.
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07/30/2018

Online scheduling for VIN appointments making lines a thing of the past

By September, we expect all vehicle inspection locations statewide to be taking online appointments.
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A concrete bridge under construction with support pillars, construction equipment, and dirt visible beneath it on a clear day.
07/27/2018

You can’t see us yet, but we’re working on new phase of Ajo Way improvements

For the next few weeks we’ll be putting things in place to begin what will be an 18-month project.
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07/26/2018

From the Director: Words fail when a state trooper doesn’t get home safely

Last night’s events on Interstate 10 in the West Valley are so absolutely unacceptable, so outrageous, that words can’t do justice to emotions.
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07/25/2018

Signaling a commitment to southeast Pima County

We’re replacing stop signs at the ends of exit ramps at Rita, Wilmot and Kolb roads to move traffic more efficiently in a growing area.
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