Interstate 40: West Flagstaff Bridge Replacement

The Arizona Department of Transportation, in conjunction with the Federal Highway Administration, is planning the rehabilitation and replacement of both the east- and westbound West Flagstaff Bridges on Interstate 40. The project is approximately 3 miles west of the junction with Interstate 17 at milepost 192 in Flagstaff.

The $6.4 million project consists of removing the existing east- and westbound bridge substructure and superstructure. Construction is anticipated to begin in April 2021. The project will occur within ADOT right-of-way and easements.

What to expect

Throughout construction, a minimum of one lane of traffic in each direction will be maintained. During the winter season, October through March, a minimum of two lanes of traffic in each direction will be maintained. Closures of the eastbound off- and on-ramps and cross-road access from March through October will be required, during which time traffic will be detoured to the Flagstaff Ranch Road traffic interchange approximately one mile east of the project.

Project Area Map

I-40 West Flagstaff Project Map

Stay Informed

Email: Subscribe to receive project updates and traffic alerts.
Phone: ADOT Project Information Line: 855.712.8530.
Teléfono: Línea de Información del Proyecto ADOT: 855.712.8530
Online: Submit a question or comment through the ADOT website. Visit and then select Projects from the dropdown menu.
Twitter: Follow ADOT on Twitter  (@ArizonaDOT) for real-time highway conditions statewide.