I-17 Airport Road Bridge Replacement

I-17 Airport Road Bridge Replacement


Project Cost: $11,600,000


The Arizona Department of Transportation, in cooperation with the city of Flagstaff, has initiated a bridge replacement project at the Airport Road (John Wesley Powell Boulevard) bridge over Interstate 17 in Flagstaff. Construction is expected to begin early spring 2024 and completed in late summer 2024.

The purpose of the project is to replace the old deteriorated bridge with a new bridge that meets current standards while improving safety for pedestrians and cyclists. 


Project Elements

  • Construct a new two-span bridge adjacent to the existing bridge.
  • Construct a new paved approach to tie the new bridge to the existing roadway.
  • Install new bridge barrier, guardrail and end treatments.
  • Realign roundabout approaches within the traffic interchange to facilitate maintenance of traffic
  • activities during construction (roundabout operations will remain the same).
  • Demolish the old bridge.
  • Widen the shoulder on John Wesley Powell Boulevard between the northbound ramps and existing sidewalks to the east.
  • Install new pavement markings and signs as needed.

Other project elements include installing new curb and gutter, sidewalk, ADA-compliant sidewalk ramps, drainage and overhead lighting.


What to Expect

The majority of the work will take place weekdays from 5 a.m. to 5 p.m. Mondays through Thursdays, and Fridays 5 a.m. to noon. When overnight restrictions are in place from 7 p.m. to 7 a.m., drivers will use the off- and on-ramps at the I-17/John Wesley Powell traffic interchange to exit and re-enter the interstate. Signage and on-site flaggers will direct drivers through the work zone. No work is anticipated on weekends or holidays. 

Pedestrian and bicycle access will not be permitted across the existing bridge during the majority of the project. A detour will be provided.

ADOT advises drivers to plan for possible delays during construction. 


Project Area Map

I-17 Airport Road Bridge Replacement Map


Restrictions and Closures


Stay informed of traffic restrictions before they occur by subscribing to receive timely traffic alerts by 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

  • By email: Subscribe to receive traffic alerts and project updates directly to your email.
  • Online: Submit a question or comment through the ADOT website. Visit azdot.gov/Contact and then select Projects from the dropdown menu.
  • Phone: Call the ADOT Bilingual Project Information Line at 855.712.8530.
  • Teléfono: Línea de Información del Proyecto ADOT: 855.712.8530
  • By mail: ADOT Community Relations, 1655 W. Jackson St., MD 126F, Phoenix, AZ, 85007