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TKDA provided preliminary and final design and environmental documentation services for four interstate bridges and approach roadways on I-90 over Township Roads 312 and 323 in Winona County. The project involved the development of a staff approved layout, geotechnical investigations, utility coordination, and water resource engineering, roadway and bridge design, and implementation of a Public Involvement Plan. The project required the development and coordination of construction staging and traffic control on the I-90 and local roads, coordination with local, state, and federal agencies and the creation and implementation of a project-specific Quality Assurance/Quality Control plan. The staged construction of the project will take place over two construction seasons and will occur within in-place right of way.