Custom Alert placed in Alerts region

UPDATE: Interchange improvement project scheduled to start on Duval Mine Road at I-19 in Sahuarita Nov. 8

Learn more

This alert adds westbound overnight closures on Duval Mine Road and extends the restriction dates through Nov. 20

Intersection with overhead highway signs for I-19 to Tucson and Nogales.

The Arizona Department of Transportation advises drivers to plan for overnight closures on east- and westbound Duval Mine Road between the Interstate 19 frontage road and Abrego Drive from 8 p.m. to 5 a.m. beginning Sunday, Nov. 8, through Friday, Nov. 20, as an interchange improvement project gets underway.

Motorists can expect the following restrictions:

Eastbound Duval Mine Road will be closed from just west of the I-19 frontage road to west of Abrego Drive beginning Sunday, Nov. 8, through Friday, Nov. 13.
- Detour: Drivers can use Esperanza Boulevard (exit 65) as an alternate route.
Westbound Duval Mine Road will be closed from west of the I-19 frontage road to west of Abrego Drive beginning Sunday, Nov. 15, through Friday, Nov. 20.
- Detour: Drivers can use Sahuarita Road (exit 75) as an alternate route.
A 35 mph speed limit will be enforced in the work zone.

Drivers should allow extra travel time, use caution, be prepared to slow down and merge safely when approaching and traveling through all work zones.

For more information and to sign up for email alerts, visit: azdot.gov/I19DuvalMine.

Road signs indicating Interstate 19 South straight ahead and North to the right.

Show less

I-19: Duval Mine Road Improvements Project

Overview
Project Elements
Project Area Map
What to Expect
Schedule
Photo Gallery
Video Gallery
Stay Informed

Overview

The Arizona Department of Transportation began a project in November 2026 to improve the Duval Mine Road bridge over Interstate 19 in Sahuarita. This project will improve the roadway by creating a smoother driving surface.

Project Elements

The project will include:

Making repairs to the roadway surface on both sides of the Duval Mine Road bridge
Removing and replacing damaged sections of concrete curb and drainage features within the project.
Repairing damaged sidewalks and sidewalk ramps
Adjusting uneven walkway pavers to create a smoother surface

Project Area Map

ADOT map showing the I-19 Duval Mine Road Interchange Improvements Project in Sahuarita.

What to Expect

Traffic control devices will guide motorists through the construction area.
Construction work is tentatively scheduled from 8 p.m. to 5 a.m. Monday through Friday.
ADOT will provide advance notice of restrictions and closures to email subscribers.

Schedule

Construction on this project began in November 2026 and is expected to be completed in winter 2026. Schedules are subject to change due to weather and other unforeseen circumstances.

Photo Gallery

Pre-construction I-19 Duval Mine Road Interchange improvements

Video Gallery

Stay Informed

By email: Subscribe to receive project updates and traffic alerts.
By phone: Call the ADOT Project Information Line at 855.712.8530.
Online: Submit a question or comment via email to Dulce Maria Rojo at [email protected].
For real-time highway conditions statewide, follow ADOT on Twitter (@ArizonaDOT), visit az511.gov or call 511, except while driving.