It is no secret that Arizona is known for its intense summer heat and dry climate. But what makes the deserts of this state so hot?

We know it's the weekend, but we hope you’re up for a “Where in AZ??” Facebook challenge.

ADOT is working to examine our current processes and identify ways to do better for the customers we serve.

With a three-year environmental study that began recently for an I-11 corridor between Nogales and Wickenburg, here’s a quick rundown of who’s involved.

ADOT partners with Arizona Cardinals player Jared Veldheer for its “Seat belts. For life.” campaign.

Switching traffic to newly constructed westbound lanes of Grand Avenue at Bell Road advances construction an overpass and upgraded eastbound lanes.

We're wondering if you've taken a Sunday drive on this road. If you have, tell us where this photo was taken in our Where in AZ?? challenge.

What does Arizona Cardinals left tackle and captain Jared Veldheer have in common with the Arizona Department of Transportation? We both know that seat belts save lives.

Football fans headed to Camp Tontozona near Kohls Ranch should be prepared for heavy traffic on SR 260.

Learn how ADOT used an explosive device the size of a shotgun shell to reopen 24 miles of US 89A after a widespread flash flood.

Arizona is known for its extreme heat. Each of us can take precautions to help ensure we’ll stay safe in Arizona's extreme temperatures.

It's time for another Where in AZ?? challenge. Can you tell us where the photo below was snapped?

With more monsoon rain in the forecast this week, we're explaining the climatological features responsible for monsoon storms.

ADOT photographers have taken more than 5,000 photos over five years documenting ADOT projects around Arizona.

Personnel from more than a dozen agencies have benefited from training at properties that ADOT acquired along the 22-mile-long corridor for the South Mountain Freeway.

Do you drive on one of Arizona's longest or shortest highways? Find out in today's Transportation Trivia.

Four years ago, the Donor Network of Arizona designated August “MVD Saves Lives Month,” recognizing the Motor Vehicle Division’s role in promoting organ donation.

Do you know where in Arizona the photo below was taken? Join us on Facebook for this week's challenge!

This is a story about one volunteer recognizing a loved one, and an ADOT employee whose love of serving the public is making the world a more beautiful place in Sonoita.

Construction will begin on the Loop 202 South Mountain Freeway in early September after the U.S. District Court in Phoenix dismissed legal challenges against the long-planned corridor.