From the Archive

We do a lot to prevent and clean up graffiti and other acts of vandalism, but what do you do when the vandal is a little more extraordinary?

We're going back to 1977 and showing you a unique vehicle used to test the wet friction characteristics of a road.

We're taking you back to the beginnings of the Engineer-in-Training program.

We dug up a photo of a road crew at work in the 1930s!

Road construction can be a challenge on a good day, but is especially challenging when building a road through the mountains.

We're taking it back to the mid-60s today and construction of the only highway in the country still using the metric system.

While a lot has changed on I-17 in downtown Phoenix, a few things have endured over the years.

Our blog series "From the ADOT Archives" takes you back to downtown Phoenix in 1960.

Advances in mapping and cartography parallel those in technology.

Many have taken notice of the safety messages on ADOT's overhead message boards, but the agency has been trying to get drivers' attention for many years.

The Arizona State Fair is a tradition for many including ADOT. We're taking you back to the '70s this week.

The MVD is finding ways to leverage new technology to improve processes and improve the customer experience.

Arizona Transportation History reports gives a look at the history of US 89.

We found a photograph in our archives that's an excellent throwback/reminder for travelers who are facing the winter storm.

After looking at these photos, we feel like we’ve taken a trip back to 1970 and landed our DeLorean at the Arizona State Fair.

In honor of its 25th birthday, we’ve focused on the Deck Park Tunnel all week but we’re not done yet.

The Deck Park Tunnel isn’t technically a tunnel - it’s actually made up of 19 bridges that are lined up side by side, creating a tunnel effect for motorists. But there are actual, honest-to-goodness tunnels that were dug during the project.

In 1957, Arizona’s first freeway interchange was finished, connecting Black Canyon Freeway and US 60/Grand Avenue, northwest of downtown Phoenix near Thomas Road.

As you can see in these photos from decades past, ADOT was working to warn motorists about the dangers of dust storms way back in the 1970s.

Highway construction isn’t just big machinery, heavy-duty vehicles and materials by the ton. There’s a lot of work that happens off project sites and inside a lab.