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U.S. 2 Snowmobile Tunnel

Loretto, Michigan



Michigan DOT


Michigan DOT


Bacco Construction


August 31, 1997

This Rails-to-Trails project was contracted by the Michigan Department of Transportation. The 160 foot CON/SPAN® structure replaced a box beam bridge, maintaining the existing trail without increasing snowmobile cross traffic or road surface wear.

The structure was placed on 3 foot high pedestal footings to provide clearance for the trail groomer. Precast headwalls were used, while wingwalls were cast-in-place due to height.

Technical Description:

  • Span: 12 ft
  • Rise: 10 ft
  • Length: 160 ft

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