US 89A narrowed to one lane near Vermillion Cliffs

Temporary traffic signals in place to accommodate travel in the area

Motorists traveling along US 89A near Vermillion Cliffs will encounter two temporary traffic signals to allow for alternating lanes of travel while a box culvert extension project is underway. The US 89A project will widen five box culverts within an eight-mile segment of US 89A between mileposts 540 and 548 in preparation for a future roadway widening project in the area.

The temporary traffic signals will be moved from west to east within the project limits as construction progresses. There is potential for stop-and-go traffic along US 89A at the signal locations. A 12-foot width restriction also is in place.

Obey the reduced speed limit in the work zone and watch for crews and equipment in the area.

For more information about this project, please call Coralie Cole, ADOT senior community relations officer, at602.501.4899, or email ccole@azdot.gov.


ADOT works to inform the public about planned highway restrictions, but it’s possible that unscheduled closures or restrictions might occur because of weather or other factors. For the latest highway conditions around the state, visit the ADOT Traveler Information Center at az511.gov, follow us on Twitter (@ArizonaDOT) or call 511except while driving.