has gloss | eng: Regional Road 174 is the name of the four-lane highway in eastern Ottawa that leads to the suburb of Orléans and beyond to Rockland, Hawkesbury and the Quebec border. It was originally part of Highway 17, but on April 1, 1997, the Ontario Conservative government of Mike Harris turned over responsibility to the municipalities. Until the opening of Highway 417, this was the main route between Ottawa and Montreal. At that time, the former Regional Municipality of Ottawa-Carleton was given the responsibility over the new Regional Road 174. |