I-75 Business Spur Reconstruction/Roundabout, Sault Ste. Marie

Start: May 2018     End: October 2019
Investment: $11.2 million
What Is Being Done?

MDOT and the City of Sault Ste. Marie are investing $11.2 million to reconstruct 2.2 miles of roadway and construct a roundabout combining the intersections of 3 Mile Road/Mackinac Trail and I-75 Business Spur/Mackinac Trail in Sault Ste. Marie. The project includes modernizing two traffic signal locations. As part of the project, the city will also construct sidewalks. The project is scheduled to be constructed in phases over two years.

How Traffic Will Be Affected:

One lane will be open in each direction for the duration of the project.

Safety Benefit:

The project will extend the roadway service life, improve ride quality, drainage and safety while reducing maintenance costs. The new roundabout and other changes will reduce traffic conflict points, improving safety, visibility and access to the business spur. The sidewalk project will fill in gaps in pedestrian mobility along the corridor.

Additional Information:

I-75 Business Spur Plan
I-75 Business Spur Reconstruction and Roundabout Installation

Work on I-75 Business Spur in Sault Ste. Marie to restart Monday
I-75 Business Spur roundabout in Sault Ste. Marie now open to traffic
Traffic alert: I-75 Business Spur paving starts Wednesday 
Reminder: MDOT phone line open for I-75 Business Spur project in Sault Ste. Marie
MDOT meetings to discuss I-75 Sault Ste. Marie business spur project scheduled Tuesdays through Nov. 6
MDOT to hold meeting on Sault Ste. Marie roundabout and business spur project
I-75 roundabout, business spur project starts May 29

Contact Us:

Newberry Transportation Service Center, 906-293-5168
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