Minnesota Department of Transportation

511 Travel Info

I-35W/ I-94 Stormwater Tunnel


Traffic impacts

Work is mostly complete on the Stevens Ave. tunnel.

Once work is done, crews will not be able to remove equipment until early September 2018.


Motorists may park on Stevens Ave. opposite of the work area.

About this project

Summary of work

  • Repair drain tunnel that transfers drainage from five square miles of Minneapolis near I-35W/ I-94 to the Mississippi River
  • Construct a new tunnel access shaft at approximately 33rd St. and Stevens Ave.

Workers will need to access the stormwater tunnel at three separate construction areas:

  • Stevens Ave.
  • East 27th St./Wells Fargo Way
  • Corner of 15th St. West and Willow St. near Loring Park

The majority of work will take place below ground in the stormwater tunnel.

Environmental issues

  • Earthwork will be limited to clearing and digging
  • Dust impacts will be minimal as pavement on Stevens Ave. will not be removed
  • Construction areas will be protected from erosion and sediments
  • Streets will be swept throughout the project

Noise impacts

  • Construction noise from equipment/work (primarily during the daytime hours)
  • Minimal vibration