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Important Road Construction Information For Grandma’s Marathon Participants and Spectators


It is a little tricky getting around town now.  Just think about how it will be with thousands of Grandma’s Marathon racers, spectators and Expo participants in town.  Not to mention tourists who have no idea and friends and families of recent graduates.  The following information is going to be EXTREMELY helpful for anyone venturing to Duluth on the week-end of June 15-17, so pass it on!

Due to construction projects on Interstate 35, please be aware that if you are driving to Duluth  you should expect delays.

North of Hinckley, there are three separate road construction projects that will reduce travel to one lane at times and slow your travel time. We urge you to plan accordingly and give yourself extra travel time. Typically, the peak travel times on northbound I-35 occur on Friday afternoons.

Also, expect delays and heavy traffic in downtown Duluth on Friday, June 15 between 5:30 p.m. and 7:30 p.m., during the running of the William A. Irvin 5K.

If you are traveling through Wisconsin to get to Duluth, note that the Minnesota-bound lanes of the Blatnik Bridge (I-535) are CLOSED, and you will need to utilize the Bong Bridge (U.S. Hwy 2) to get to Duluth. The Wisconsin-bound lanes of the Blatnik Bridge remain open.

For the most up-to-date information, maps and alternate routes, click here



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