The Ville-Marie and Viger tunnels are integral parts of the Montreal transportation network. The two tunnels are located in the axis of Autoroute 720 along a stretch commonly referred to as the Ville-Marie highway. The Ville-Marie tunnel was inaugurated in 1974, followed by the Viger in 1986.
From the MTQ: “The tunnels crisscross a densely built environment, both on the surface and in depth, since they coexist with underground Montreal where there are pedestrian tunnels, metro tunnels, commercial spaces and parking lots, not to mention the Ville- tunnel. Marie includes the only underground interchange in Quebec and one of the few in
Renovation work on the tunnels will take part in four phases (anticipated work time in brackets): The replacement of 37 exhaust fans (three-and-a-half years); the complete repair of the tunnels at the exit from the Mountain, including the dismantling of the last paralumes (two years); the beginning of electrical migration work towards 25 kilovolts (two years); and the reconstruction of the decks of the Saint-Urbain and Saint-Laurent bridges (one and a half years).