ADOT Blog

The big reorganization brought with it many new responsibilities for the department, including the addition of several new divisions.On July 1, 1974, the Arizona Highway Department officially became the Arizona Department of Transportation...

A holiday is coming up, but we have last "Where in AZ??" before you go on vacation this week!

Listing who received invitations and even how officials would obtain lumber to build a speaker stand made for page-one news back in 1936.

It was 90 years ago that Arizona dedicated Navajo Bridge spanning the Colorado River at Marble Canyon.

The firefighters at Grand Canyon National Park Airport train hard to make sure they are ready for any emergency.

We love our longtime Adopt a Highway volunteers and hope others will find inspiration in what motivates them, like this group from the Chinle Navajo Land Department.

We're proud of our YouTube channel and excited that one video has now reached more than 250,000 views.

It looks like summertime in Arizona in today's "Where in AZ??" photo.

The Ligurta Underpass is one of Arizona's best examples of clean design in a World War II-era rural bridge.

The Deck Park Tunnel has been a planned feature for Interstate 10 through Phoenix since the 1980s. But before that, concepts included something a little more interesting.