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Twin Ports Interchange project traffic impacts April 1 – April 28

Motorists will encounter routine closures in the coming days for bridge/ramp inspections throughout Duluth. Motorists will also encounter a temporary road closure on Lower Michigan Street beginning Monday, April 19, and lasting until October, as part of the Twin Ports Interchange project.

Monday, April 19

  • Lower Michigan Street will close from 15th Avenue West to 23rd Avenue West. This closure will be in effect until October. Once open again this section of Michigan Street will be utilized through the fall of 2022 to carry southbound I-35 traffic.
  • Lane closures will occur on the Michigan Street bridge over Highway 194/Mesaba Avenue between 9 a.m. and 3 p.m. A flagger or portable messaging sign will be in place.
  • Alternating lane closures will occur under the bridge on the ramp to southbound I-35. This work was originally scheduled for Wednesday, April 21.

Tuesday, April 20

  • Right lane closures will occur at northbound Highway 194/Superior Street and alternate lane closures will take place on Superior Street between 9 a.m. and 3 p.m. This work was originally scheduled for Thursday, April 21.

Monday, April 26

  • The ramp from southbound I-35 to eastbound I-535 will close for inspection. Motorists will be detoured. This work was originally scheduled for Monday, April 19.
  • Southbound and northbound I-35 will undergo temporary right lane closures for bridge inspections between 9 a.m. and 3 p.m.

Wednesday, April 28

  • Southbound I-35 just south of 27th Avenue West will experience right lane closures for bridge inspections between 9 a.m. and 3 p.m.

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Check MnDOT 511 before traveling for information on road conditions, closures, and detour routes.

Twin Ports Interchange Hotline: 218-343-3748

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