. ▁The ▁stretch ▁of ▁highway ▁between ▁Const antine ▁and ▁the ▁start ▁of ▁the ▁divided ▁highway ▁south ▁of ▁Three ▁R ivers ▁aver aged ▁ 7 , 5 7 9   c ars ▁and ▁ 1 , 0 4 5   tr uck s ▁daily ▁in ▁ 2 0 0 9 ▁according ▁to ▁MD OT , ▁one ▁of ▁the ▁lowest ▁A AD T ▁counts ▁for ▁the ▁highway ▁in ▁Michigan . ▁ ▁US   1 3 1 ▁runs ▁through ▁a ▁business ▁cor rid or ▁along ▁the ▁west ▁side ▁of ▁Three ▁R ivers . ▁M - 6 0 ▁runs ▁concurrent ly ▁along ▁this ▁part ▁of ▁US   1 3 1 ▁until ▁the ▁two ▁high ways ▁meet ▁the ▁south ▁end ▁of ▁the ▁business ▁loop ▁through ▁town . ▁The ▁main ▁road ▁curves ▁to ▁the ▁n ortheast ▁as ▁it ▁leaves ▁town , ▁and ▁M - 6 0 ▁turns ▁east ▁to ▁follow ▁Business ▁US   1 3 1 ▁( Bus . ▁US   1 3 1 ) ▁into ▁dow nt own . ▁The ▁tr unk line ▁runs ▁parallel ▁to ▁a ▁branch ▁of ▁the ▁Grand ▁El k ▁Rail road . ▁North ▁of ▁the ▁other ▁end ▁of ▁the ▁business ▁loop , ▁US   1 3 1 ▁follows ▁a ▁four - lane ▁surface ▁highway ▁through ▁rural ▁far ml and ▁in ▁northern ▁St . ▁Joseph ▁County . ▁The ▁highway ▁has ▁at - grade ▁j unction s ▁with ▁cross ▁roads , ▁but ▁otherwise ▁has ▁limited ▁access ▁from ▁ad jo ining ▁property . ▁This ▁arrangement ▁ends ▁on ▁the ▁south ▁side ▁of ▁School craft , ▁where ▁the ▁highway