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US-2 over Cut River, Hendricks Twp., Mackinac County, MI

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Bergmann provided multiple repair and design services to US-2 over Cut River located in MackinacCounty, Michigan, with the focus on the Cut River Bridge, a large, cantilevered deck truss located in the Upper Peninsula of Michigan. The bridge repair work included fixing deteriorated gusset plates,substructure patching, and restoring sandstone-facing blocks on the abutments. The bridge is a historic structure and required coordination with the State Historic Preservation Offices (SHPO). The project also included load rating the structure, performed using MIDAS software.

Highlights of the project include:

  • Use of MIDAS Software:
    Load rating the structure, performed using MIDAS software. A custom spreadsheet was developed to "mine" output data from MIDAS for use in postprocessing spreadsheets. The load rating included the truss members, gusset plates, floor beams, stringers, tie-down assemblies, seated connections, and the reinforced concrete approach spans.
  • Bridge Repair:
    Repair of a damaged downspout that is causing erosion of a critical slope, repairing gusset plates, and re-designing/fixing deteriorated parts of the bridge while protecting the historical value.