Traffic Alerts - I-40, Fourth Street Bridge widening and Butler Avenue

Upcoming lane restrictions on Interstate 40 at Butler Avenue and at Fourth Street in Flagstaff

The Arizona Department of Transportation is advising drivers to plan for lane restrictions on Interstate 40 in Flagstaff as work continues on the Fourth Street bridge replacement and Butler Avenue bridge rehabilitation project.

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

Eastbound/Westbound I-40 at Butler Avenue

  • One lane closed in each direction nightly from 8 p.m. to 5 a.m. starting Sunday, May 31, and ending the morning of Friday, June 5.

Westbound I-40 at Fourth Street

  • Narrowed to one lane from 2 p.m. Sunday, May 31, to 5 a.m. Monday, June 1.
  • Narrowed to one lane nightly from 8 p.m. to 5 a.m. starting Monday, June 1, and ending the morning Wednesday, June 3.
  • Narrowed to one lane from 8 p.m. Friday, June 5, to 6 p.m. Saturday, June 6.

Eastbound I-40 at Fourth Street

  • Narrowed to one lane nightly from 8 p.m. to 5 a.m. starting Wednesday, June 3, and ending the morning of Friday, June 5.
  • Narrowed to one lane from 6 p.m. Saturday, June 6, to 5 a.m. Monday, June 8.
  • Narrowed to one lane nightly from 8 p.m. to 5 a.m. starting Monday, June 8, and ending the morning of Friday, June 12.

While the restrictions are in effect for one direction of travel, all traffic will shift to the other side of the highway. The traffic shift will enable drivers to remain on I-40 as they travel through the work zones.

The restrictions are needed as work continues on the Fourth Street and Butler Avenue bridges project.

Schedules are subject to change based on weather and other unforeseen factors. For more information, please call the ADOT Bilingual Project Information Line at 855.712.8530 or go to azdot.gov/contact and select Projects from the drop-down menu. For real-time highway conditions statewide, visit ADOT’s Traveler Information Site at www.az511.gov, follow ADOT on Twitter (@ArizonaDOT) or call 511, except while driving.