Traffic Alerts - I-40: West Flagstaff Bridge Replacement

UPDATE: Lane restrictions, traffic shifts, on Interstate 40 at West Flagstaff Bridge through Nov. 12

Drivers should use caution and allow extra travel time

Drivers in northern Arizona should plan for traffic shifts and lane restrictions on Interstate 40 while work continues on reconstructing the West Flagstaff Bridge (Exit 191).

The following traffic shift will occur around-the-clock from 6 p.m. Friday, July 23, through Friday, Nov. 12:

  • The eastbound travel lanes will be reduced to one lane and shifted to the north side of the roadway.
  • The speed limit will be reduced to 55 mph.
  • A 15-foot vehicle width restriction will be in place.

The following traffic shift will occur around-the-clock from 6 p.m. Thursday, July 29, through Friday, Nov. 12:

  • The westbound travel lanes will be reduced to one lane and shifted to the south side of the roadway.
  • The speed limit will be reduced to 55 mph.
  • A 15-foot vehicle width restriction will be in place.

ADOT reminds drivers to slow down and observe posted speed limits and other construction signs while the restrictions are in place.

Additional restrictions, which are already in place, include:

  • Eastbound I-40 on- and off-ramps at the West Flagstaff Bridge (Exit 191) and the crossroad under the bridge will be closed.
    • Detour: Eastbound I-40 drivers accessing I-40 Business Loop/West Route 66 will be detoured to Flagstaff Ranch Road (Exit 192). I-40 Business Loop/West Route 66 drivers accessing eastbound I-40 will be detoured east to A-1 Mountain Road (Exit 190) to turn around and re-enter eastbound I-40.

The closures are needed so crews can begin work to replace the West Flagstaff Bridge over Business 40, which connects the interstate to Historic Route 66 in west Flagstaff.

The project, which is about 3 miles west of the junction with Interstate 17, is anticipated to be completed by fall 2022.

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