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A concrete bridge with large support beams spans a deep red rock canyon under a cloudy sky.
02/10/2026

Waterhole Canyon Bridge is out-of-this-world

An odd-looking bridge in Northern Arizona is a gateway to some of Arizona's most spectacular scenery.
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Samaritans Adopt a Highway Volunteers
02/09/2026

All the Way to the Border cleanup sees 100 volunteers

Hospitality and community support fuel Melissa Owen's 11th annual cleanup to reduce trash along State Route 286.
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On the Road With ADOT logo
02/06/2026

PODCAST: Loop 101 Pima improvements complete; pavement upgrade coming

Joe Heller, ADOT's resident engineer in charge of the recently completed Loop 101 (Pima Freeway) project, visits On the Road With ADOT to discuss this $108 million improvement and a coming project there to use diamond grinding to provide a smooth, durable driving surface.
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Popular blog articles

04/30/2018

From the Director: Let's talk trash

Hundreds of volunteers help keep Arizona's highways clean every year, saving the taxpayers money and keeping Arizona beautiful.
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04/29/2018

Where in AZ??

Time to put your thinking caps on and identify the location of this week's "Where in AZ??" challenge.
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Visitors learn about wrong-way detection technology at ADOT Traffic Operations Center
04/27/2018

#FridayFive: Hollywood movie starts, nosy pooches and wrong-way detection

We're going gaga over a nosy pooch, remembering one of Hollywood's greats and his visit to the Valley and leading the way in wrong-way detection technology for this week's Friday Five.
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04/26/2018

Throwback Thursday: High flying meets Hollywood in Phoenix

We're time-traveling to a 1978 airshow at the Phoenix Deer Valley Municipal Airport for this week's Throwback Thursday.
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Traffic Operations Center briefs other states about new wrong-way vehicle alert system
04/25/2018

ADOT briefs other states about I-17 wrong-way vehicle alert system

Other states look to ADOT as they consider adopting wrong-way driver detection technology.
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Rendering of message board saying: Buckle Up, Buttercup
04/24/2018

From the Director: Buckle up, buttercup

Thanks to everyone who entered the ADOT Safety Message Contest, and thanks to those responsible for the 2,500 votes we received.
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04/23/2018

Pictures aplenty show our progress on the South Mountain Freeway

A project as large as the Loop 202 South Mountain Freeway makes for some impressive pictures. Here's where you can check them out.
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04/22/2018

Where in AZ??

A road on a steep grade is one of the few clues available for participants in this week's "Where in AZ??" challenge.
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Crane lifting girders seen through hole of a bidwell
04/20/2018

Art of Transportation: A peek at things to come

Freeway construction isn't just nuts and bolts. If you know where to look, there are some beautiful things to see. The South Mountain Freeway project is featured in this week's Art of Transportation.
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04/19/2018

For National Volunteer Week, a special thank you to Adopt a Highway volunteers

We applaud the hard work of our Adopt a Highway volunteers who cleaned up 1,500 miles of state highway last year.
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