Sparks from dragging chains, underinflated tires and tossed cigarettes can and do start fires along state highways. Here's how you can help.

Same road, same rules, same rights and responsibilities. We offer tips on how bikes and cars can co-exist safely.

ADOT's state engineer hopes you'll resolve to be more aware of other motorists, whether they’re driving a vehicle with two wheels or four.

With the last girder placed for the South Mountain Freeway interchange on I-10 in west Phoenix, ride along as we soar above the work zone.

The light at the end of the tunnel is the subject of today's Art of Transportation post.

A visit to the ADOT Materials Lab in Phoenix demonstrated how what taught in science, technology, engineering and mathematics helps those who build and maintain state highways.

Check out a slideshow and get an update on our progress finishing the final touches on a project that's improving mobility and safety in fast-growing Marana.

Beyond his work as a civil engineer with ADOT's operation serving northeastern Arizona, Kee Yazzie was a key contact with Native American communities.

Five years ago, ADOT helped launch the Health Forest Initiative to help prevent large wildfires and protect infrastructure. Now we're expanding that effort.

Interstate 17, the Black Canyon Highway, was dedicated 55 years ago. Here's the story behind this important north-south link.

State Route 67, also known as the Jacob Lake to Grand Canyon Highway, is one of Arizona's most scenic summer drives.

What does infrastructure mean when it comes to Arizona's highway system? Here are some numbers.

South Mountain Freeway crews are wasting no time moving onto the final phase of construction for the 40th Street traffic interchange in Ahwatukee.

Here's a look at the simple engineering behind the ubiquitous work zone concrete barrier.

When a pier needed to support a ramp would otherwise need to be in the middle of travel lanes below, ADOT engineers call on this support structure that straddles traffic.

The entries are reminders that the best way to make roads safer is changing our own driving habits and encouraging those around us to change theirs.

ADOT Director John Halikowski explains why everyone needs to realize the importance of infrastructure and protect its value by making investments for the future.

As summer starts again, its now warm enough for work on several road improvement projects in northern Arizona.

This summer we are rolling out new highway signs to both promote the 511 phone line, attract business sponsorship and generate funds to maintain roads.

Our ArizonaDOT Spotify playlist of transportation-related songs has continued growing over the past year. We hope you'll check it out.