Minnesota Department of Transportation

511 Travel Info

I-35, I-535, Hwy 53 Twin Ports Interchange


Traffic impacts


  • March 24 to 26 - Southbound I-35 will be routed into a single lane onto Lower Michigan Street between Garfield Avenue and 27th Avenue West. 
  • March 24 to 26 - Northbound I-35 will close completely between 40th Avenue West and Garfield Avenue. All northbound traffic will be routed off I-35 at 40th Avenue West. The signed detour will follow Highway 2 (Bong Bridge) to Superior, Wisconsin then onto Highway 535 (Blatnik Bridge) and back into Duluth.
  • Traffic to and from Port Terminal Drive, is being detoured onto Helberg Drive through the 2023 construction season.
  • All ramps to Hwy 53 and I-535 are closed.

Detours are in place. To avoid heavy traffic anticipated on Garfield Avenue, we strongly encourage use of the Bong Bridge.

See detour maps

Other work

The Cross City Trail along Lower Michigan Street is closed and detoured from Spring 2021 to 2024. The city of Duluth has a detour in place.

See maps showing the traffic staging.

Late fall 2023

I-35 will open to traffic on new configuration. Ramps connecting 535 to/from I-35 will open. Ramps connecting to/from Hwy 53 will remain closed.  

Summer 2024

There will be lane closures for finishing work on I-35.

Fall 2024

Ramps connecting to/from Hwy 53 will open