This weekend, Montreal drivers face the La Fontaine Tunnel closing overnight Friday, and the Honoré-Mercier Bridge reduced to one lane in each direction until Monday.
The La Fontaine Tunnel will close in both directions from 11 p.m. Friday to 8 a.m. Saturday, with traffic diverted via the Jacques-Cartier Bridge.
The Mercier Bridge will have one lane open each way from 3 a.m. Saturday to 5 a.m. Monday. Officials warn of heavy daytime congestion.