michigan highway north south state trunkline highway state michigan serves continuation highway wisconsin michigan connecting highway largely unchanged designated 1930s new bridge state line built route description starts wisconsin state line middle bridge crossing connects highway runs northeast away river forests trunkline turns north curving east run past laurel lake highway junction road county road takes northwesterly fork runs west roadway passes highway begins parallel follows road north city continuing 4th street downtown trunkline ends junction adams street middle town listed national_highway_system michigan_department_of_transportation conducted survey determine traffic volume highway reported metric called average annual daily traffic aadt department determined vehicles day highway near state line vehicles central section northernmost segment near aadt vehicles history designated state trunkline highway late early half department paved highway entirety route remained current bridge built major intersections entire highway
M-189 (Michigan highway)