| Department of Transportation

Map-Kitt-Peak-Observatory-guardrail-project

kitt peak guardrail project photo mountain workers

kitt peak guardrail project photo worker

SR 386: Kitt Peak Observatory Guardrail Reconstruction Project

This project is complete

The Arizona Department of Transportation completed a project to repair guardrail on State Route 386 at Kitt Peak located on the Tohono O’odham Nation in April 2025.

View Project Map

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State Route 86, mileposts 90 -105 Pavement Rehabilitation

Located in Pima County 40 miles southeast of Why, Arizona within the Tohono O’odham Nation Indian Reservation.

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A black-and-white photograph of a highway model of a traffic circle.

A little sleuthing reveals history behind an ‘unknown’ highway improvement

When time permits here at the ADOT Communications factory, I like to dive into the State Library, Archives and Public Records Arizona Memory Project

Two animated kids in construction clothing standing in front of a crossword puzzle.

Hey ADOT Kids! Are you ready for some fun (and educational) summer activities?

ADOT Kids is a website created to spark children’s curiosity in how things work and what makes things go, tapping into their interest in science, technology, engineering and math in a fun way! ADOT Kids has lots of free, downloadable activity sheets, links to videos and more!

911

PHOENIX – US 93 is closed in both directions at milepost 198 near Wickenburg, according to the Arizona Department of Transportation.

The closure is due to a crash. There is no estimated reopening time.

Real-time highway conditions are available on ADOT’s Arizona Traveler Information site at az511.gov, the AZ511 app, calling 511 and through ADOT’s Twitter feed, @ArizonaDOT.

A roller flattens and smooths new asphalt on a highway.

Look for an even busier summer for pavement improvements

Summer is on the horizon, and that traditionally means the start of ADOT’s pavement repair season. After an unusually harsh winter, we’re gearing up for even more projects across the state.

Runway Shoulders; Runway Mill and Overlay

Adding shoulders to a runway increases safety. In the event of a runway excursion (an aircraft unintentionally veers off the runway) the shoulders give the pilot more pavement on which to regain control before ending up in the dirt infield.

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Entry Monument and Signage Repair and Renovation

The airport entry monument is in a severe state of disrepair, and the wayfinding signage as well as the street signs are old, faded, and no longer complete their task of helping customers find their way to their flights. The airport decided that a complete repair and renovation of the entry monuments and a radical re-thinking of our wayfinding signage was in order.

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Airfield Drainage Improvements

The current drainage system is now inside the Runway Safety Area (RSA), causing a safety and standards concern. Furthermore, the drainage system no longer adequately removes water from the airfield, allowing water to pool rather than flow. An award-winning Drainage Master Plan and Water Use Study was completed in 2018 by Dibble Associates. This study informed the decision making and design of our updated drainage system.

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Acquire Aircraft Rescue and Fire Fighting (ARFF) Vehicle

The airport has two Aircraft Rescue and Fire Fighting (ARFF) vehicles; one small and one large. The small, “Index A,” vehicle has reached the end of its useful life. It is 15 years old, has obsolete equipment and costs more to repair that it is worth. Acquiring a new Index A truck will greatly increase our capabilities and greatly reduce operating and maintenance costs.

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