▁control ▁over ▁the ▁city ▁streets ▁that ▁carried ▁state ▁high ways ▁through ▁cities ▁in ▁the ▁state . ▁Until ▁this ▁point , ▁the ▁City ▁of ▁Grand ▁Rap ids ▁arbitr arily ▁moved ▁the ▁route ▁of ▁state ▁high ways ▁through ▁the ▁city ▁on ▁a ▁regular ▁basis . ▁The ▁department ▁took ▁control ▁of ▁a ▁series ▁of ▁streets ▁and ▁fixed ▁the ▁routing ▁of ▁US   1 3 1 ▁through ▁the ▁city ▁after ▁the ▁passage ▁of ▁the ▁act . ▁The ▁highway ▁was ▁shift ed ▁between ▁Three ▁R ivers ▁and ▁Const antine ▁to ▁the ▁west ▁side ▁of ▁the ▁St . ▁Joseph ▁River ▁in ▁ 1 9 3 6 . ▁In ▁late ▁ 1 9 3 8 ▁or ▁early ▁ 1 9 3 9 , ▁the ▁M SH D ▁extended ▁US   1 3 1 ▁north ward ▁over ▁the ▁southern ▁section ▁of ▁M - 1 3 1 . ▁After ▁the ▁changes ▁US   1 3 1 ▁turned ▁east ward ▁into ▁F ife ▁Lake ▁and ▁north ▁to ▁K alk aska ▁and ▁Man cel ona ▁before ▁ending ▁in ▁Pet os key . ▁This ▁extension ▁connected ▁US   1 3 1 ▁directly ▁to ▁its ▁parent ▁highway , ▁US   3 1 , ▁for ▁the ▁first ▁time . ▁By ▁the ▁end ▁of ▁the ▁ 1 9 3 0 s , ▁the ▁M SH D ▁under ▁the ▁leadership ▁of ▁future ▁governor ▁Murray ▁Van ▁W agon er ▁had ▁shift ed ▁emphas is ▁to ▁a ▁program ▁of ▁road ▁improvements ▁designed ▁to ▁make ▁the ▁state ' s ▁roads ▁" sa fer ▁and ▁sm o other ▁for ▁bur geon ing ▁traffic