The annual Grandma’s Marathon is scheduled Saturday, June 17. It is one of Duluth’s biggest events, attracting 50,000 to 60,000 visitors each year. The Minnesota Department of Transportation expects heavy traffic levels on Interstate 35 in the days prior to and after the marathon events, which officially begin Thursday.

On I-35 just south of Willow River to just north of Sturgeon Lake

Traffic is restricted to a single lane in each direction and motorists may encounter short duration ramp closures at County Road 43 and County Road 46. Backups are expected. For more information about this project please visit: mndot.gov/d1/projects/i35willowriver

On I-35 at Highway 61 in Carlton County

The northbound lanes are closed. Traffic is using the southbound lanes in a head-to-head configuration. Backups are expected. For more information about this project please visit: mndot.gov/d1/projects/i35-bridgedeck

To avoid traffic delays MnDOT encourages visitors to allow extra travel time, come early and stay late, travel during off-peak times, check www.511mn.org for the latest traveler and traffic information or consider taking an alternate route.

Hwy 61/London Road and the North Shore Scenic Highway will be closed during the race on Saturday.

For more information about Grandma’s Marathon, see http://grandmasmarathon.com.

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