michigan highway east west state trunkline highway state michigan connects continues far eastern end highway runs miles rural parts including county line vehicles day use roadway daily highway designated route ran farther west decade extended end point north 1960s current configuration section roadway previously western end highway redesignated section 1970s route description currently starts interchange area highway runs west interchange turns south running concurrently county road turns eastward south town mile road fields road turns south community south town runs long county line crosses turns east mile road highway rural areas southeast county follows mile roads community runs south road corner county line highway turns east area running north south segment terminates junction west near albany harbor michigan_department_of_transportation mdot maintains like parts state trunkline highway system jurisdiction responsibilities department tracks volume traffic roads metric called average annual daily traffic aadt measurement calculation average traffic levels roadway segment average day year mdot figured vehicles day sections addition department added portion northern junction scenic drive loops lake highway added national_highway_system network roads important country economy defense mobility history july ran eastward highway continued ran eastern tip western end moved point north extended highway ran north east turned west north mid-1930s routing area shifted result shift section downtown renumbered early 1940s moved new routing lake michigan shoreline process concurrency eliminated time truncated designated east end decade truncated rerouted western end replacing contemporary south west turned local jurisdiction removed state highway system save section late early years later extended section connect newly opened freeway october west current highway designated major intersections
M-48 (Michigan highway)