Our team provided leadership, advice and strategic coordination to the Missouri Department of Transportation (MoDOT) as the project management consultant (PMC) for the Manchester Bridge project. This guidance allowed MoDOT to proceed with the replacement of the I-70 bridges over Manchester Trafficway and the Blue River under a best-value design-build selection process. Our recommendations also helped mitigate construction issues, prevent schedule delays and reduce costs.
The overall project entailed the replacement of several bridges that are more than 50 years old and prone to repairs and traffic delays. We brought a full-service team to the program manager role, with specialists in bridge design, geotechnical engineering, environmental services, roadway design and traffic engineering. The team also had a long-standing relationship with MoDOT, including several large design-build projects.
During the pre-bid phase, we provided recommendations and assistance in these critical areas:
Reuse of existing structural steel with fatigue-prone details
Minimum design requirements and documentation for reuse of steel girders
Reuse of substructure elements, including chloride and compressive strength testing of existing substructure concrete
Requirements for bridge hydraulic design in the Blue River Floodway and coordination with the floodplain administrator
Noise impact investigation and noise study requirements
Environmental and geotechnical expertise for construction of substructure elements within a hazardous waste site
Utility coordination and subsurface utility engineering
Timely review and recommendations of alternate technical standards submitted by design-build teams
Removal of a historic tied-arch bridge (U.S 40 Bridge) to be relocated and reused as a pedestrian structure