The Twin Ports Interchange project continues to make notable progress. The $435 million project requires crews to work year-round to reconstruct the I-35/I-535/Hwy 53 interchange.

For Northland motorists traveling through the construction area, that can mean slowed travel and delays. However, it helps to know what you may encounter ahead of time should you need to travel in that area.

The Minnesota Department of Transportation provides that information, including this week when it announced a series of single-lane closures leading up to Grandma's Marathon weekend.

I-35 Lane Closures This Week at Twin Ports Interchange

According to MnDOT, single-lane closures will be in place in both directions on I-35 through the Twin Ports Interchange project area this week.

It's worth noting that previously announced hours for some closures have changed so MnDOT crews can accomplish stripe painting work during nicer weather.

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Below is the lane closure schedule for this week. For those arriving early for Grandma's Marathon weekend in Duluth, you'll want to take note of the closures toward the end of the week.

  • Tuesday, June 18: Southbound I-35 will be reduced to one lane from Garfield Avenue to 27th Avenue West between 7 a.m. and 3:30 p.m.
  • Wednesday, June 19, and Thursday, June 20: Southbound I-35 will be reduced to one lane from Garfield Avenue to 27th Avenue West between 6 a.m. and dark.
  • Thursday, June 20: Northbound I-35 will be reduced to one lane from 27th Avenue West and Garfield Avenue between 9 a.m. and 6 p.m.
  • Friday, June 21: Northbound I-35 will be reduced to one lane from 27th Avenue West and Garfield Avenue between 9 a.m. and 12 p.m.
  • Friday, June 21: Southbound I-35 will be reduced to one lane from Garfield Avenue to 27th Avenue West between 7 a.m. and 12 p.m.

RELATED: WARNING! Expect Delays On I-35 South Of Duluth Through Summer

The Twin Ports Interchange Project looks to improve safety by:

  • Providing a new conventional design
  • Relocating all exits and entrances to the right side of the roadway
  • Improving merging sight distance and eliminating merge conflicts
  • Eliminating weaving problems near the interchange
  • Providing lane continuity for through I-35 traffic

Construction is expected to be completed around the summer of 2026 when landscaping and clean-up are expected to begin.

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The video below shows what the freeway will look like when completed from a motorist’s view heading north on I-35 through the Twin Ports Interchange area, then heading to southbound I-35 from I-535, or the Blatnik Bridge, through the Twin Ports Interchange area.

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Gallery Credit: Stacker