 The various municipalities serviced by Highway 140 , as well as Niagara Region , have called for four @-@ laning the route and redesignating it as Highway 406 . However , the MTO is committed to extending Highway 406 to Highway 58 southwest of Welland . On April 4 , 2006 , the MPP for Erie — Lincoln , Tim Hudak , introduced a Private Member 's Bill . The Highway 406 to Port Colborne Act passed first reading , but was not brought up for a second reading . 
