Four lanes of interstate traffic return to Lincoln Park on Friday, when northbound traffic shifts to the southbound lanes of Interstate 35.

The new alignment will run alongside the Lower Michigan Street bypass, which is carrying southbound I-35 traffic.

The alignment will be in place through fall 2022 as crews shift their attention to work closer to the St. Louis Bay. The $343 million Twin Ports Interchange reconstruction project is slated for completion in spring 2024.

Additional changes were outlined by the Duluth office of the Minnesota Department of Transportation in a news release this week:

  • Northbound I-35 to the Blatnik Bridge and I-535 will close. The signed detour will divert traffic to U.S. Highway 2 over the Bong Bridge.
  • The ramp from 27th Avenue West to northbound I-35 will close through Oct. 15. The signed detour will follow I-35 south to 40th Avenue West and then back north.
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Looking ahead, the ramp from northbound I-535 to northbound I-35 will be closing in late October, MnDOT said. It's the ramp coming from the Blatnik Bridge into Duluth.

The traffic shift is being preceded by nighttime demolition work from Wednesday night through Friday morning. The work is being done in preparation of the northbound I-35 traffic switch.

The purpose of the nighttime work is for partial demolition of low level bridges in advance of traffic being placed on former southbound I-35.

Bridge demolition adjacent to traffic is a risk for the traveling vehicles, which MnDOT and its contractors seek to avoid, MnDOT said.