Traffic Alerts - I-15: Black Rock Road Bridge Rehabilitation

Interstate 15 Black Rock Road Bridge construction project begins Jan. 9

Bridge work will require 24-hour restrictions on bridge and periodic restrictions on I-15

The Arizona Department of Transportation is advising drivers to plan for 24-hour traffic restrictions on the Black Rock Road Bridge over Interstate 15 beginning Monday morning, Jan. 9. 

The bridge is located about two miles south of the Arizona-Utah state line (milepost 27) in the far northwestern part of the state.

  • The bridge will be narrowed to one lane only of alternating east- and westbound travel. A temporary traffic signal will be in place for the duration of the project.
  • A 12-foot vehicle width restriction will be in place.
  • The speed will be reduced through the work zone.
  • Drivers should proceed through the work zone with caution, slow down and watch for construction personnel and equipment.

In addition, traffic restrictions will be in effect on north- and southbound I-15 when work below the bridge takes place.

The restrictions are needed so crews can safely work on increasing the lifespan of the bridge. Additional restrictions will be announced in the coming months as construction continues on the bridge rehabilitation project. The work will include:

  • Placing a concrete surface along the entire bridge decks, which is the top portion of a bridge that motorists drive on.
  • Repaving the approaches to provide a smooth transition to each bridge structure.
  • Removing and replacing the deck joints with new joints.
  • Removing and replacing the guardrails.
  • Other related work.

The project is scheduled to end in the spring.

For more information, visit: https://azdot.gov/projects/northcentral-district-projects/interstate-15-black-rock-road-bridge-rehabilitation