The name of the route commonly called the Beeline Highway was officially changed to the Duthie-Martin Highway in honor of two law enforcement officers who lost their lives on the road in the line of duty.

It was 89 years ago that the Arizona Highway Commission decided to help out local industry by making copper license plates.

It isn't exactly news that history abounds along Arizona highways. A casual driver can learn about historical figures ranging from Hi Jolly to Tom Mix by visiting various historical markers and monuments. But what might be news to you, as...

Did you know that Mule Pass Tunnel near Bisbee had a cameo in a major Hollywood motion picture? It's true, and let us tell you about it.

See the demolition that will lead to a better bridge on I-17 over Central Avenue.

State Route can't seem to decide whether its coming or going. We dive into while the route from Phoenix to Lukeville is numbered in two contrary ways.

An ADOT study on traffic control devices to help pedestrians cross a street or highway has received a national award.

Did you know there's a connection between an Arizona highway and Canadian folk singer Gordon Lightfoot?

More than 20 years ago, ADOT did a careful balancing act of widening State Route 87.

Here's a photo that reminds us why we are happy working in these mechanized times.

US 93 has a surprising quirk: Its milepost numbers get higher as you head south. Why the highway is like that is a tricky question to answer.

See for yourself how things are progressing on US 60 at Pinto Creek.

Our project on the Fourth Street bridge over Interstate 40 is one of those times when things just seem to slide into place.

Going uphill has always been part of driving north in Arizona. And that means steep hills and occasionally rocks, like in this photo from the 1930s.

About 50 Heber-Overgaard community members helped clean a dozen miles of highway shoulders this month.

We've created bingo cards filled with highway signs, traffic signs, specialty license plates and other things that you may spot on an Arizona road trip. Pack these cards on your next car trip for some family fun and we hope it can help keep...

Five years ago a monsoon storm dumped mud and boulders along US 89A. That's when we got to work.

Calling all volunteers! National CleanUp Day is coming and we hope you'll participate through Adopt a Highway.

We are halfway through our project on US 60 at Pinto Creek. You may not have seen much now, but that will change as we move into the back half of the project.

Antelope Bridge is an early example of an Arizona project built with prison labor, but it couldn't overcome a poorly selected crossing site.