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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

04/15/2014

SR 89A switchbacks to close for up to five weeks after Memorial Day

ADOT will soon begin a project that will restore the pavement along a 3.5-mile segment of SR 89A through the Oak Creek Canyon switchbacks.
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Putting up a Welcome to Arizona sign
04/11/2014

Happy third birthday to the ADOT Blog!

It’s an exciting day for us here on the ADOT Blog. Not only are we celebrating the blog’s third birthday, today we’re also marking our 500th blog post!
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04/09/2014

Will you know what to do when a dust storm hits?

Our new "Pull Aside, Stay Alive" video helps spread dust storm safety message.
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ADOT workers remove sign from trailer along highway
04/07/2014

Work Zone Awareness Week starts today

Work Zone Awareness Week starts today and we've got some tips that will help keep you, and everyone in the work zone, safe.
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Passenger rail stdy webpage header
04/04/2014

Comment period continues for ADOT's passenger rail study

As ADOT continues to examine the feasibility of a passenger rail line between Phoenix and Tucson, you still have plenty of time to provide input.
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A highway overpass with several cars driving, crossing above a dry concrete drainage canal on a clear, sunny day. A green road sign is visible in the distance.
04/03/2014

New Loop 101 HOV-lane ramps now open at Maryland Ave. in Glendale

New freeway ramps to improve the flow of traffic near University of Phoenix Stadium and Jobing.com Arena in Glendale are now open.
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04/01/2014

ADOT selects preconstruction contractor for emergency repairs on US 89

ADOT cleared another hurdle last week in its effort to get the US 89 landslide repair started. ADOT has finalized an agreement with a contractor for preconstruction engineering services.
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03/28/2014

Historic Chevelon Creek Bridge gets restored

The Chevelon Creek Bridge has been around almost as long as Arizona has been an official state, but age isn’t the only noteworthy aspect of this structure.
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A large truck with an Oversize Load sign hauls an oversized red and white cargo trailer on a highway, accompanied by workers in safety vests.
03/27/2014

520-ton oversize load slowly makes its way through state

A majorly massive haul consisting of one (very big) transformer is being moved (very slowly) through Arizona to its final destination in Yuma.
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03/25/2014

New I-11 signs mark congressionally designated corridor

New signs mark the future I-11 corridor between Phoenix and Las Vegas. They were installed by ADOT along US 93, a likely route for the proposed interstate.
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