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As part of our dedication to the preservation of cultural resources, Michigan Dept. of Transportation (MDOT) maintains an inventory of historic bridges that are located on state owned roads. This inventory lists counties and the historic bridges located in those counties.
This database is experiencing intermittent access issues as an upgrade is being completed. Please continue to try periodically to access the database. We apologize for any inconvenience. This system includes all plats in the State of Michigan beginning with the plats created under the 1821 territorial act for recording town plats.
Maintained by the Michigan Department of Human Services, this site has resources for searchers.
Links to Michigan's twelve federally-acknowledged Indian tribes and resources relevant to their status as sovereign governments with special status under federal law and treaties.
The Office of the State Archaeologist (OSA), records, investigates, interprets and protects Michigan's archaeological sites.
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