Michigan Department of Transportation

M-231 over the Grand River

Grand Haven, MI

This project provided a much-needed second crossing over the Grand River to alleviate significant congestion on the the US-31 corridor. An existing draw bridge crossing was over capacity. The project involved construction of 1.263 miles of new concrete roadway and a new 3,708-foot-long structure over the Grand River and adjacent wetlands. Benesch provided construction inspection services that primarily focused on the installation of deep cofferdams, foundation pile driving inspection and the placement of substructure concrete. Also included in the project was excavation, drainage, retaining walls, storm water detention basins and pavement markings.

Project highlights

  • Construction of new roadway over river
  • Over 12,000 cubic yards of substructure placed
  • Addition of a 14-foot-wide multi-use lane added to the substructure that was decided mid-project