michigan highway state trunkline highway state michigan serves spur route starts south park runs north lakes area community highway highway shown number label maps labelled extension year highway current routing established 1950s route description south intersection lane farther south roadway continues county road state highway lane road north connecting gate state park center arts road runs green duck lakes north north school highway passes wooded section entering community near runs north crossing line great lakes central railroad terminating connection rest state trunkline system corners roadway continues north designation ends maintained michigan_department_of_transportation mdot like state highways michigan maintenance responsibilities department tracks volume traffic uses roadways jurisdiction volumes expressed metric called annual average daily traffic statistical calculation average daily number vehicles segment roadway mdot surveys showed vehicles highway daily section listed national_highway_system network roads important country economy defense mobility history highway route connecting south state park added state highway system half initially lacking designation label state maps time routing extended miles labelled maps route campus center arts abandoned roadway march realigned pass east school extended south state park area major intersections entire highway
M-137 (Michigan highway)