SR 80 Mule Pass Tunnel Safety Project near Bisbee

SR 80 Mule Pass Tunnel Safety Project near Bisbee


This project is complete


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 was completed spring 2024.

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

Project Photos

SR 80 Mule Pass Tunnel Lighting Work 021624

Traffic Restrictions

SR 80 is expected to remain open during the project. However, flaggers will control traffic in alternating directions while work is occurring, so delays are likely.

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.