Maintenance and Work Order Construction Maps, 1921-1980 Series 2729
The series consists of maps showing segments of road maintained by the state with federal aid dollars. The 1967 atlas is arranged in numerical order by district, with maps alphabetized by county within each district; the other atlases are arranged alphabetically by county. The 1967 and 1975 atlases include database printouts for each county detailing the mileage, year and cost of construction, and duration of previous and ongoing maintenance projects for each road segment. The Department of Archives and History has electronic (PDF) copies of the 1967, 1975, and 1980 atlases produced by MDOT.