Weekend closures planned for Montreal's La Fontaine Tunnel so workers can switch tubes
Ramp closures planned for today and the near future

Montreal's Louis-Hippolyte-La Fontaine Tunnel will be closed over the weekends of April 25 and May 2 to carry out repair work and shift traffic to the newly renovated tube.
To do this, certain ramps will need to be closed beforehand.
A complete closure of Exit 90 — Highway 20 West, Route 132, La Prairie/U.S., Varennes, P. E. Trudeau Airport from Highway 20 Westbound — is scheduled from today at 11 p.m. until tomorrow at 11 p.m.
A complete closure of the access ramp from Sherbrooke Street East and West to northbound de Boucherville Street is scheduled from April 20 at 10 p.m. to April 21 at 5 a.m.
The Louis-Hippolyte-La Fontaine Bridge-Tunnel will be completely closed on Saturday and Sunday of the weekend of April 25.
For those heading to the South Shore, a closure of Highway 25 southbound (including the Louis-Hippolyte-La Fontaine Tunnel) between Exit 5 — Route 138/Hochelaga Street/Sherbrooke Street and the entrance from Île Charron — is scheduled from April 25 at 11 p.m. to April 28 at 5 a.m.
The on-ramps to this section will be closed 30 minutes before the full highway closure.
For those heading to Montreal, a full overnight closure of Highway 25 northbound (including the Louis-Hippolyte-La Fontaine Tunnel) between Exit 90 — Highway 20 West, Route 132, La Prairie/U.S., Varennes, P.-E.-Trudeau Airport and the entrance from Hochelaga Street — is scheduled for the nights of April 25 and April 26.
The on-ramps to this section will be closed 30 minutes before the full highway closure.
Both lanes toward Montreal will be shifted during the weekend of May 2. A similar operation is expected to take place at that time.
Since these closures depend on operational constraints and favourable weather, the Ministry of Transport and Sustainable Mobility will confirm each closure at the beginning of the week on its social media channels.
After these closure periods, traffic will resume according to the current system: one lane will be open toward the South Shore and two toward Montreal. This configuration will remain in place until fall 2026.
Written by Isaac Olson, with files from Radio-Canada