US 191: Chinle - Lukachukai Wash Bridges


The Arizona Department of Transportation has initiated a project to reconstruct four bridges along US 191 between the communities of Many Farms and Rock Point on the Navajo Nation.

The project will include demolition, removal and replacement of the Lukachukai (milepost 488) and Agua Sal North (milepost 480) bridges. The Agua Sal South (milepost 476) and Chinle Wash (milepost 470) bridges will be rehabilitated, which will include new decks and the reconstruction of the roadway approaching the bridges, guardrail replacement and other related work.

Project Area Map

US 191 Chinle Bridges Map

What to expect during construction

During construction, lane restrictions will be needed for crews to safely work on the roadway. As a result, drivers should expect slower traffic and delays. Details regarding traffic restrictions will be updated and posted on this project webpage prior to the start of work.

ADOT reminds drivers to proceed through the work zone with caution, slow down and watch for construction personnel and equipment. 

Project schedule

Construction work will begin in October and is scheduled to be completed by the end of 2022. 

Schedule subject to change based on weather or other unforeseen circumstances.

Current restrictions and closures

ADOT advises drivers to plan ahead for possible delays while the following traffic restrictions will be in place:

  • North- and southbound US 191 will be narrowed to one lane only with alternating travel weekdays in November 2021 and continuing through the end of 2022. 
  • Traffic will be controlled by a temporary traffic control signal.   
  • Drivers need to be prepared to slow down and stop in the work zone and use caution around construction personnel and equipment while the restrictions are in place.

For information about project-related restrictions and closures, visit or call 511, except while driving.

Stay informed of traffic restrictions before they occur by subscribing to receive project updates and traffic alerts by email.

Stay informed

ADOT welcomes your questions and comments. Please contact us in any of these ways:

  • Online: Submit a question or comment through the ADOT website. Visit and then select Projects from the dropdown menu.
  • By phone: Call the ADOT Bilingual Project Information Line at 855.712.8530.
  • By mail: Write to ADOT Community Relations, 1655 W. Jackson St., MD 126F, Phoenix, AZ 85007.