Regional Road 174 (Ottawa)
From Wikipedia, the free encyclopedia
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 provincial highway 17 but in the 1990's the province turned over responsibility to the municipalities. Until the opening of highway 417, this was the main route between Ottawa and Montreal.