Main Content Chapter 485 friendly link printer friendly mcl index link Search within this Statute for Chapter 485CANAL, HARBOR, AND RIVER IMPROVEMENT COMPANIES DocumentTypeDescription Act 233 of 1875StatuteCANAL OR HARBOR COMPANIES (485.1 - 485.25) Act 149 of 1869StatuteRIVER IMPROVEMENT COMPANIES (485.101 - 485.129) Act 91 of 1887StatuteIMPROVEMENT OF STATE BOUNDARY RIVERS (485.201 - 485.214) Act 188 of 1889StatuteIMPROVEMENT OF RIVERS FOR LOGGING (485.301 - 485.303)