SR 80 Mule Pass Tunnel Safety Project near Bisbee


The Arizona Department of Transportation will complete a safety project to upgrade the lighting system in and adjacent to the Mule Pass Tunnel near Bisbee. Construction began in fall 2022 and will extend into summer 2023.

In addition to the upgraded lighting system, the project also includes restriping the roadway to provide a single driving lane in each direction with shoulders on each side of State Route 80 through the tunnel. The restriping will move the westbound lane drop from the west side of the tunnel to the east side of the tunnel, while still providing a merging area for the Tombstone Canyon on-ramp. Currently, there are limited roadway shoulders with the existing passing lane.


Project Map

Project Map Image

Traffic Restrictions

  • Work will occur Mondays through Fridays 10 p.m. to 4 a.m.
  • Motorists should prepare for overnight closures on SR 80 beginning January 2023.
  • Signage will alert drivers to closures and alternate routes.
  • A vehicle height restriction will be in place (not applicable to standard passenger vehicles).

Stay Informed

By email: Subscribe to receive traffic alerts and project updates directly to your email.

By Phone: ADOT Project Information Line: 855.712.8530

Teléfono: Línea de Información del Proyecto ADOT: 855.712.8530

Online: Submit a question or comment through the ADOT website by visiting and then select “Projects” from the dropdown menu.