Highway 25 tunnel closes all directions for electrical and safety repairs this weekend

The Louis-Hippolyte-La Fontaine tunnel on Highway 25 will close completely all directions from October 25 at 10 p.m. through October 28 at 5 a.m. for electrical system maintenance, communication system repairs, and work to fix elements damaged by collisions and incidents over the past year.

Highway 25 northbound will close completely from exit 90 (Highway 20 west, Route 132, La Prairie, the U.S., Varennes, and Pierre Elliott Trudeau Airport) to the Sherbrooke Street entrance. Northbound entrance ramps close 30 minutes before the full closure begins Friday at 10 p.m.

Highway 25 southbound will close in three phases: Friday 10 p.m. to Saturday 8 a.m., Saturday 10 p.m. to Sunday 9 a.m., and Sunday 10 p.m. to Monday 5 a.m. Southbound closure spans from exit 4 (downtown Montreal, Jacques-Cartier Bridge) to the Île Charron entrance. Southbound entrance ramps also close 30 minutes before each phase.

Avenue Souligny will be closed westbound between Honoré-Beaugrand Street and Highway 25 southbound exit 4 Friday 10 p.m. to Saturday 8 a.m. The street will be closed eastbound between Dickson Street and Honoré-Beaugrand Street during all southbound closure periods. Eastbound access to Avenue Souligny will be open daytime only.

The ministry recommends consulting Quebec 511 online or through its mobile app before travel and notes that work may be postponed due to unfavourable weather or operational constraints.