Minnesota Department of Transportation

511 Travel Info

I-35 Duluth Bridge Rehabilitation

St. Louis County

Traffic Impacts

Starting on Monday, July 29, the following ramps to and from I-35 will close:  

  • I-35 northbound off-ramp to Lake Avenue bridge
  • I-35 southbound off-ramp to Lake Avenue bridge
  • I-35 southbound on-ramp from Lake Avenue bridge
  • I-35 northbound on-ramp from Lake Avenue bridge
  • I-35 northbound on-ramp from Michigan Street

Additionally, the I-35 southbound exit 256B Lake Avenue/5th Avenue West will be closed entirely for the week of July 29 to allow for concrete work on the 5th Avenue West leg of the exit.

Lanes will continue to be closed on I-35 northbound and southbound between 5th Avenue West and 13th Avenue East (north termini of tunnels).

These closures have been accelerated and need to be completed concurrently due to additional concrete work needing to be completed as a part of the planned construction project. Ramps are expected to reopen by September 7 and will open sooner if possible. Detour signage will be posted.

Work in 2025 will reduce I-35 to one lane in each direction and require 5th Avenue West ramp closures.

About this project

Summary of work

Bridge joint replacement, Bridge deck rehabilitation, and concrete pavement repairs

Work zone map

2024 work zone map. Click to enlarge image

I-35 ramp detour

2025 work zone map. Click to enlarge image