Southbound I-17 lane restriction starts April 26 at Sedona turnoff

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Expect delays for improvement work on bridge deck over SR 179

Drivers on southbound Interstate 17 approaching the State Route 179 interchange (Sedona turnoff) should expect slow traffic and delays, especially during peak travel times, while work is underway on a bridge improvement project starting Sunday (April 26).

Southbound I-17 will be narrowed to one lane around the clock at the Sedona turnoff (milepost 299) for work to make significant improvements to the bridge structure over SR 179. The project is scheduled for completion by late summer.

Drivers should be prepared to slow down and stay alert to signs when traveling on the downhill approach to the work zone area. To enhance safety, the southbound I-17 speed limit approaching SR 179 will be reduced to 45 mph.

A brake check area for semi trucks will be in place at the southbound I-17 scenic overlook at milepost 312.

The southbound I-17 bridge project at SR 179 will include the following:

Remove and replace the pavement overlay on the bridge deck
Repair underlying concrete as needed
Construct new bridge approach slabs
Replace guardrail as needed

For more information, contact Community Relations Project Manager Jason Stephens at 480.751.7104 or [email protected].

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I-17/SR 179 TI Southbound Bridge Rehabilitation

Contents

Overview
Project Elements
Project Area Map
Project Schedule
What to Expect
Restrictions and Closures
Stay Informed

Project Cost: $2.5 million

Overview

The Arizona Department of Transportation has initiated a southbound bridge rehabilitation project at the I-17/SR 179 traffic interchange approximately 15 miles east of Sedona (MP 299).

Project Flyer

Project Elements

The purpose of this project is to extend the functional life of the bridge.

Project elements include:

Remove and replace top layer of pavement on the southbound bridge deck
Repair concrete, as needed
Construct new approach slabs
Install new expansion joints
Repair slope paving
Replace guardrail and embankment curb, as needed

Project Area Map

Map of the I-17 and SR 179 interchange project area near milepost 299 between Sedona and Flagstaff

Project Schedule

Construction is scheduled to begin late spring 2026 with completion anticipated for winter 2026.

What to Expect

Southbound I-17 will be restricted 24/7 to one lane through the construction zone for the duration of the project.

A mandatory brake check will be in effect for all semi-trucks at the southbound overlook approximately 13 miles north of the I-17/SR 179 interchange.

ADOT advises drivers to plan for delays while the work is underway.

Restrictions and Closures

Stay informed of traffic restrictions before they occur by subscribing to receive notifications sent directly to your email. It’s fast and easy! All we need is your email address.

For real-time information about project-related restrictions and closures, visit az511.gov or call 511, except while driving.

Remember to slow down and use caution around construction workers and equipment.

Stay Informed

Subscribe to receive traffic alerts and project updates directly to your email.

Email/Phone: Community Relations Project Manager Jason Stephens at [email protected] or 480.751.7104
Teléfono: Línea de Información del Proyecto ADOT: 855.712.8530
Mail: Jason Stephens, ADOT Communications, 1655 W. Jackson St., MD 126F, Phoenix, AZ 85007