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On the Road With ADOT logo
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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The top 10 Specialty Plates 2025.
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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Popular blog articles

Several cars and trucks drive on a wide highway overpass near fields, under a clear sky.
10/06/2020

New view of the South Mountain Freeway

Our traveler information website, AZ511.gov, now offers views from the South Mountain Freeway.
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Diagram showing eastbound traffic flow at Happy Valley Road diverging diamond interchange over I-17.
10/05/2020

Opening soon: The new diverging diamond interchange on I-17

The diverging diamond interchange at Interstate 17 and Happy Valley is opening this month. What does that mean? Let us tell you!
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Arizona Highways image of saguaro alongside road
10/02/2020

Arizona Highways named best Instagram account of 2020

The Phoenix New Times has chosen Arizona Highways as the best Instagram account for 2020.
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Black and white photo of road paving
10/01/2020

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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Ligurta Wash Bridge
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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