Wayne County Dept. of Public Service Grosse Ile Parkway Bridge Repairs

Trenton and Grosse Isle, Michigan

Owner
Wayne County Department of Public Services (Wayne County DPS)

Size of Project

  • 1,345-foot-long movable bridge
  • 12-span structure with a 340-foot swing span
  • Approximately 22,180 vehicles per day
  • Primary connection between Grosse Ile and the mainland, carrying approximately 75% of island traffic

Scope of Work

  • Emergency underwater bridge inspections
  • Structural inspection and rehabilitation design
  • Design-build bridge repair services
  • Timber crib pier rehabilitation
  • Scour mitigation and countermeasure design
  • Underwater repair design and construction support
  • Bridge rehabilitation and reopening support
A worker in a safety vest and helmet stands on a metal walkway over water, with a large steel bridge and a control tower in the background.

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