M-231 over the Grand River

TranSystems prepared bridge studies for both southbound and northbound M-231 over the Grand River as well as design for the proposed southbound alignment of M-231. The project also involved the design of two other new structures over North Cedar Drive and the Little Robinson Creek, and the study of a non-motorized path. Creating a challenge for study and design, the existing site conditions included deep organic layers, presence of significant archaeological finds, high water table, and flooding. Twenty-one hydraulic analyses were completed to help determine the appropriate structures and layouts. The project has been recognized by the American Association of State Highway and Transportation Officials (AASHTO) in the 2014 America’s Transportation Awards.