Highway 61 Tunnel Lighting Project To Start Early May

DULUTH, MN –  The Minnesota Department of Transportation will be starting work on Highway 61 at the Lafayette Bluff and Silver Cliff tunnels on May 5, 2025.

This project will replace the lighting systems in each tunnel.

There will be single lane traffic through the tunnels Monday through Thursday.

Traffic will be controlled by a signal system.

Closures will take place at one tunnel at a time.

Work will take place first at Lafayette Tunnel then move to the Silver Cliff Tunnel.

There will be no traffic impacts Fridays through Sundays.

Work is expected to last through mid-November.

The project will include a new LED lighting system designed to upgrade luminaires and lighting control system in each tunnel.