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Minneapolis, MN  55415-1390

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1st St N Tunnel Repair over Basset Creek

In 2020 the city of Minneapolis will rehabilitate the 1st St N Tunnel over Bassett Creek. This rehabilitation project will extend the service life of the existing tunnel. The biggest construction constraint for this project will be time of construction due to the water levels rising and falling with the Mississippi River. Completing the work when the water is the shallowest will accelerate construction and reduce the price.

Access to the site is restricted to a manhole at 2nd St N and 8th Ave N and the outlet to the Mississippi River. To deliver materials and workers through the manhole a crane is required. Thus closure of the parking lane and the sidewalk on the that side of the road will be required to complete the work.

1st St N Tunnel Repair Webmap

Project status

Project Status: Completed

Project limits

The Project will concentrate on the bridge over 1st St N between 8th Ave N and 4th Ave N in the tunnel. The above tunnel work will only be for access and delivery at a manhole located on 2nd St N and 8th Ave N.

The bridge is part of a continuous tunnel system over Bassett Creek.

Construction schedule


Fall 2020 - Construction is tentatively scheduled to begin on October 12, 2020.

Winter 2020-2021 - Anticipated completion of project

A more detailed look

October 21, 2020 - Project start and mobilization

October 28, 2020 - Install bypass system

November 4, 2020 - Concrete removals

November 11, 2020 - Install reinforcement

November 18, 2020 - Form and pour walls

November 30, 2020 - Install liner plate and castings

December 14, 2020 - Backfill grout

December 18, 2020 - Demobilization

January 15, 2021* - Project completion

*Pushed back from original completion date of December 24, 2020

Traffic impact

Due to the nature of the work mostly taking place beneath the ground in the tunnel, major traffic impact is not anticipated. Access to the project is through a manhole on 2nd St N near 8th Ave N and requires a crane to lower materials and laborers to the tunnel. To provide that set up the parking lane and sidewalk on 2nd St N would need temporary closures throughout the life of the project.

Traffic restrictions around the access manhole

1st St N Bridge Access Manhole Diagram

Parking restrictions in the project area

1st St N Bridge Parking Restrictions Diagram

For more details about posted traffic signs around the project, see the traffic control plan for  the 1st St N Tunnel Repair project.

Bi-weekly stakeholder meetings

Project staff will holding stakeholder meetings that are open to the public every two weeks, starting Friday, November 13, 2020, and continuing until April 16, 2021.

Bi-weekly Stakeholder Meeting
Every other Friday
11:00 a.m. - 11:30 a.m.

The tentative dates included are listed below:

How to join

Join the meeting using the link below:

Join the Bi-Weekly Stakeholder Meeting for the 1st St N Tunnel Repair Project

If no one joins the meeting within 15 minutes the meeting will end, but you can still contact me via phone or email.

Help with Microsoft Teams

Anyone can join a Microsoft Teams web meeting. A free software download may be required. The type of download may vary based on how you join the meeting (computer, android device, apple device). Learn more about using Microsoft Teams.

Project updates

January 15, 2021

This project has been completed.

December 14, 2020

The completion date has been moved back to January 15, 2021.

March 13, 2020

Contract has been awarded to the lowest responsible bidder PCI. The city is in the process of meeting with the contractor to verify construction details.

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Abdullahi Abukar, Engineer; 612-673-2463 or [email protected]


Last updated Jan 20, 2021



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Para asistencia 612-673-2700, Yog xav tau kev pab, hu 612-637-2800, Hadii aad Caawimaad u baahantahay 612-673-3500. 

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