The Arizona Department of Transportation advises drivers on Interstate 40 in Flagstaff to plan for closures of the eastbound on- and off-ramps at the West Flagstaff Bridge (Exit 191) beginning Monday, March 15. The closures will be in place through October. ADOT reminds drivers to slow down and observe posted speed limits and other construction signs while the following closures are in place:

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 work consists of removing and replacing the existing east- and westbound bridges’ substructure and superstructure.

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