Today we look back on an integral piece of interstate infrastructure.

If you are planning to visit the memorial the Granite Mountain Hotshots near Yarnell, please do so safely. And that means not parking along State Route 89.

If these railroad tracks and the steeple in the background look familiar, you'll want to join this week's "Where in AZ??" challenge.

The Deck Park, Queen Creek and Mule Pass tunnels get all the fame, but can you name the fourth tunnel on the state highway system?

Jasmine Arollo is stepping into a new role with the Incident Response Unit, but its just the latest in a long line of ways her family has served at ADOT.

Just how accurate are those signs telling you that your next stop is x miles away? Well, let's find out!

Like the swallows returning to Capistrano, the reopening of state highways in the high country is a sure sign of spring. Just remember to be safe if you are planning to drive these scenic roads.

There's been a lot of focus on distracted drivers the past few weeks, so ADOT Director John Halikowski shares what the "buzz" is all about.

Look to head to a cooler climate? Today's "Where in AZ??" location may be a good spot for you!

A close up shot reminds us that it's no small thing to pay attention to the details.

ADOT's engineers get a lot of attention, but there is a huge variety of employees at the agency helping people getting home safely!

The Gila County Sheriff's Office is no stranger to serving their community. So it should come as no surprise that they have been recognized as Outstanding Volunteers for their dedication to keep mile 256 of State Route 188 clean.

After a year's work, the new ramps connecting SR 189 and I-19 are almost ready. And with them, a better day for commercial trucking and safety in Nogales.

A $20 bill inside a water bottle, a new elf hat with tag still attached, an old cannonball...our volunteers have seen and cleaned it all. But while these oddities are fun to recount, the true treasure of the roadside shoulder are those who volunteer regularly to clean it.

Join our weekly challenge that test's your Arizona knowledge!

A year ago we introduced AZMVDNow.gov to help you complete MVD services on the Internet. But what about ServiceArizona.com? This is how the two work together to get you out of the MVD and onto the road.

ADOT has been posting to its blog for 10 years now, but the entire time we've had one mission - to give you the inside look at what we do and how and why we do it.

Did you know that two highway workers have been injured this year while working on projects? That's why National Work Zone Awareness Week is so important. ADOT's director shares his thoughts.

This week we throwback nearly 50 years to a pleasant evening with a Valley freeway in its infancy.

As National Work Zone Awareness Week comes to an end, we hope the message of work zone safety is something that stays with all drivers.