The Minnesota Department of Transportation encourages motorists to plan for detours and delays due to detours during the North Shore Inline Marathon on Saturday, Sept. 13.

I-35 and Highway 61 will be detoured in Duluth to accommodate the marathon starting at 6 a.m. The detours will start at Mesaba Avenue and travel on city streets before returning to the Highway 61 expressway. Closures for the event are expected to be lifted around 2 p.m.

Ramp and lane closures in downtown Duluth will remain in place and are expected to reopen on Sept. 20.

Work zone safety tips

• Obey posted speed limits. The fine for speeding in a work zone is $300.
• Drive undistracted. Avoid using cell phones, mobile devices, adjusting the radio – even eating –while in work zones.
• Move over. Give workers room to safely complete their work.
• Know before you go. Get real-time information about traffic and road conditions at 511mn.org  or get the free 511mn smartphone app at Google Play or the App Store.
• Be patient. Expect delays, especially during peak travel times.
• Do the  zipper merge.
• Avoid making unnecessary lane changes.
• Never enter a road blocked with barriers or cones.