ADOT Blog

Latest blog articles

01/18/2026

PODCAST: The partnership driving Phoenix-area freeway improvements

The Maricopa Association of Governments' Chief Transportation Officer returns in this week's episode to discuss how Proposition 400 has shaped the region's sucess through projects such as the recently completed I-10 Broadway Curve improvement, the Loop 202 (South Mountain Freeway), Loop 303 (Estrella Freeway) and State Route 24 (Gateway Freeway).

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01/16/2026

The 10 most popular specialty license plates in Arizona for 2025

Whether a driver wants to support a cause, rep their team or just add a pop of color to their car, with 109 specialty license plates available in Arizona, there’s a little something for everyone. And specialty license plates are more...

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New striping at northbound I-17 exit to Loop 303

01/15/2026

MAG partnership helps ADOT make quick freeway improvements in Valley

A much-needed second lane at the northbound I-17 exit to Loop 303 results from funding flexibility provided by the Maricopa Association of Governments, the Phoenix area's regional transportation planning agency.

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Annual report shows that motor vehicle crash fatalities in Arizona down slightly in 2012

ADOT’s yearly Motor Vehicle Crash Facts report shows that 823 people lost their lives in crashes on state and local roadways in Arizona in 2012.

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06/04/2013

South Mountain community forums provide opportunity to comment on proposed freeway

Got an opinion on the proposed South Mountain Freeway, but couldn’t make it to last month’s daylong public hearing? Don’t worry. There are still plenty of opportunities to give us your feedback, including a series of community forums that starts tonight.

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05/31/2013

Geotechnical section plays important role in roadway and structural design

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.

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A blue metal storage cabinet with multiple open drawers stands on a concrete floor in an industrial setting. Several flat cases are propped against the wall nearby.

05/30/2013

ADOT lab performs tests on dirt and rocks

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

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05/29/2013

ADOT works to wrap up US 89 geotechnical investigation

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

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05/22/2013

CMAR method is beneficial for certain projects

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.

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05/21/2013

Work on N20 detour to start soon

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.

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05/17/2013

Work continues on SR 24 in Mesa

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...

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