ADOT Blog

We know you... You’ve been following our US 89 videos and blog posts since the landslide occurred back in February. You know all about the geotechnical investigation happening at the site – by now, you’re practically an expert.

ADOT’s Soil and Aggregate lab is an interesting place, especially if you like rocks and dirt as much as we do

Just as construction to upgrade N20 begins, ADOT is wrapping up its geotechnical investigation at the US 89 landslide site…

Typically, many ADOT projects follow a common course: Design – Bid – Build. That means ADOT (or a consulting engineer working for the department) designs the project, solicits bids and then awards a contract to the lowest responsive and responsible bidder to build the project.

Drivers who have been impacted by the closure on US 89 might be happy to know that work is beginning on Navajo Route 20… That means crews soon will start paving the mostly dirt road so it can (in a few months) serve as an interim detour route until repairs are finished on US 89.

When construction wraps up on SR 24 later this year in southeast Mesa, the new freeway will span one mile between Loop 202 and Ellsworth Road. Known also as the Gateway Freeway, SR 24 certainly will help alleviate traffic congestion in the area. However, that’s not the only reason why this project is valuable to the East Valley...

You may have heard the terms “structurally deficient” or “functionally obsolete” in reference to bridges …

A whole lot of work goes into making sure ADOT signs stay readable, reflective and in good repair …

If you’ve driven the Loop 303 recently, you know that construction is now in full swing from I-10 all the way up to Mountain View Boulevard near US 60 (Grand Avenue) …

Here we are, blogging about pavement … again! When we told you there’s a lot to learn on the subject, we weren’t joking ...