Winona Bridge, Mississippi River Crossing CMGC
Project Location: Winona, Minnesota
Synopsis of work:
The First CMGC Project in Minnesota
This multi-phased project consists of building a new cast-in-place, balanced cantilevered segmental bridge upstream from the current bridge, then rehabilitating the Warren through truss and reconstructing approach spans of the existing structure. The two-bridge solution is a result of MnDOT working with the community to identify three primary goals for the project: keep the river crossing open, minimize financial burden on the city, and open the new bridge as soon as possible.
With urgency expressed for completion, MnDOT chose Construction Manager/General Contractor (CMGC) procurement for the project. CMGC is an innovative contracting method that engages a construction manager during the design process. Using a phased plan with multiple work packages, CMGC allows new bridge construction to begin while still finalizing design.
Work packages 1 - 4 for the and the new bridge and approaches were completed three months ahead of schedule and significantly under budget. The final work packages for rehabilitation of the existing bridge are planned for completion in 2019.