ADOT Blog

Latest blog articles

07/05/2026

PODCAST: I-10 widening project keeps advancing south of the Valley

In this episode of On the Road With ADOT, Marcy McMacken, our lead communicator on the project, talks with guest host Laura Douglas about what drivers will see as we continue creating a wider Interstate 10 between the Valley and Casa Grande.

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A digital message board on the highway encourages motorists to drive sober.

07/02/2026

Sparklers, not drivers, should be lit over July 4 weekend

Independence Day is just around the corner, and we want to take a moment and remind Arizonans that sparklers, not drivers, should be “lit” during the holiday celebrations. If you’re driving on state highways this holiday weekend, you may...

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07/01/2026

MVD Community Connections enters year 5 of giving back

The Arizona Department of Transportation Motor Vehicle Division charitable team known as MVD Community Connections began the fifth year of giving back to Arizona communities.

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Throwback Thursday: Capturing a moment

What can you gleam from this photo of roadwork from the 1930s?

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Guardrail posts, rail and bolts, awaiting assembly

09/30/2020

There's more to guardrail repair than meets the eye

Crews have been hard at work replacing guardrail on northbound State Route 87. But what does that entail? Here's what goes into putting in these silent sentries of highways.

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A road sign in a desert landscape shows distances to Green Valley (20 km), Amado (40 km), and Nogales (86 km).

09/29/2020

Kilometers in Arizona? You bet!

Ever wondered why I-19 is marked in kilometers? Thank Gerald Ford!

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Aerial view of a highway intersection with surrounding greenery and some buildings under a partly cloudy sky.

09/28/2020

A butterfly’s view of Mariposa Road

Mariposa means butterfly in Spanish, so we are giving you a butterfly's view of the improvements to State Route 189, Mariposa Road, in Nogales.

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09/25/2020

Historic Ligurta Wash Bridge still carrying traffic

All the traffic may be on Interstate 8, but that doesn't mean this 90-plus-year-old bridge a stone's throw away isn't still doing its job.

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Black and white image of vehicles driving on US 89 bridge

09/24/2020

Throwback Thursday: Over the bridge and under the surface

This photo looks pretty ordinary, but this scene actually holds a lot of state transportation history.

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A woman and a man, both wearing sashes and crowns, stand side by side in a gymnasium. The woman holds a bouquet and both are smiling. The sashes read 1992 and King.

09/23/2020

Adelante Nogales via SR 189

A part of ADOT employee Gaby Gonzalez Kemp's heart will always be in her hometown of Nogales. That's why she is glad to see the improvements coming to State Route 189.

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