Routine Level Inspection, Element Level Inspection, Bridge Scoping and Underwater Inspection
Great Lakes Engineering Group (GLEG) was selected by the Michigan Department of Transportation to perform Bridge Engineering Services on one of Michigan’s Large Complex Bridges; the Douglas MacArthur Bridge (Belle Isle) over the Detroit River. GLEG provided Routine Level Inspection, Element Level Inspection, and Underwater Inspection in addition to bridge scoping and developing bridge repair alternatives for the Belle Isle Bridge. Field work was in accordance with the National Bridge Inspection Standards and the Michigan Structure Inspection Manual. This bridge is a 19-span concrete cantilever open spandrel deck arch. All spans consist of concrete encased riveted structural steel, with cantilevered arches and steel tie bars and connection pins. The work includes site inspection, (beam end inspection, concrete deck and soffit surveys, substructure sounding, bridge railing sounding, underwater inspection of the substructure units, scour investigation), non-destructive testing including IR and GPR, traffic control, and report preparation and engineering analysis including Life Cycle Cost Analysis. This project was performed in coordination with the City of Detroit, MDOT, MDNR – on Belle Isle as well as other stakeholders such as the Detroit Grand Prix, Belle Isle Aquarium, Great Lakes Museum, Tour de Troit, Belle Isle Nature Zoo and the Detroit Yacht Club, the Whitcomb Conservatory and the Detroit Police Department.
|Client||Michigan Department of Transportation|