michigan highway state trunkline highway lower_peninsula state michigan serves connector interstate southwest flint highway runs rail line northwest southeast direction rural connecting small towns path highway dates start state highway system changes routing 1930s increased length adjacent highways rerouted affected locations termini change 1960s freeway completed near route description starts downtown corner main street water street follows water street southeasterly reaches highway follows south turns southeasterly avenue runs parallel river branch line continues way community turns south downtown street stretch highway michigan_department_of_transportation mdot measured highest traffic volumes survey mdot calculated vehicles section roadway measurement called average annual daily traffic aadt value count average traffic day average day year junction turns easterly southeasterly town highway continues run alongside rail line farmland outskirts crosses second time rail line highway run opposite sides town highway rounds northeast rail line runs southwest section trunkline lowest aadt value vehicles continues interchange exit northwest highway designation terminates listed national_highway_system system roads important nation economy defense mobility history formed july spur route ran southerly realignment produced changes rerouted current alignment took roadway time shifted run section transferred shortened transfer reversed construction completed new section built parallel construction paved remaining segment section south turned local control early shortened final time completion freeway area late early time eastern terminus shifted freeway interchange instead old route road major intersections entire highway
M-71 (Michigan highway)