michigan highway state trunkline highway entirely joseph county southwestern region state michigan trunkline runs highway indiana state line undivided highway near joseph river connection state road provides access current highway second carry number version incorporated routing route description continuation michigan starts state line road runs state line east north terminus parallels running south town runs past john water streets intersects ends highway listed national_highway_system system roads important country economy defense mobility michigan_department_of_transportation mdot tracks traffic volumes roads maintains volumes expressed average annual daily traffic aadt measurement number vehicles stretch roadway average day year survey traffic volume vehicles day commercial vehicles tally numbers increased vehicles total commercial vehicles history designated state trunkline version ran state line northerly junction time turned westerly turning south connect version completed paved swapped south successor time routed western run south major intersections entire highway
M-103 (Michigan highway)