Minnesota Department of Transportation

511 Travel Info

Hwy 61 Tunnel lighting project

Lake County

Traffic Impacts in Fall 2020

Map of the Lafayette Bluff tunnel and the Silver Creek cliff tunnel

Project location map

Motorists will encounter lane closures in the tunnels. They will be controlled with temporary signals.

About this project

Summary of work

  • During the Fall of 2019, crews performed an inspection of existing tunnel lighting supports over the centerline in the Silver Creek Cliff and Lafayette Bluff tunnels. The inspection was needed to verify the structural capacity of the existing lighting support system in preparation for the design phase of the lighting upgrade project.
  • A new LED lighting system will be designed to upgrade the luminaires and lighting control system in each tunnel.