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US-31 Holland to Grand Haven Corridor Study
  • US-31 Overview US-31 is a principal arterial on the National Highway System serving north/south traffic along the Lake Michigan shoreline. US-31 from South Bend, Indiana, to the Mackinac Bridge is roughly 460 km (390 miles) and provides access to more than 15 state parks, hundreds of tourist-oriented businesses, and other recreational opportunities. US-31 is the primary commercial, commuter, and tourist route for both long distance travelers and local Holland to Muskegon trips. US-31 has been identified as part of Michigan's "Priority Commercial Network" and is considered a critical link in the local economy and county-wide development plans.