Multiple road closures planned this weekend

There will be several road closures this weekend.

Highway 25 will be closed in both directions, including the Louis-Hippolyte-La Fontaine tunnel from Friday to Sunday.

Quebec’s Transport Ministry said the closures are needed for maintenance work and to change the lane configuration on Highway 25 northbound to continue the reconstruction of the concrete slabs.

Exit 5 A-138 / Hochelaga Street / Sherbrooke Street will return to its original configuration.

Highway 25 towards the South Shore

There will be a complete closure of Highway 25 towards the South Shore (including the Louis-Hippolyte-La Fontaine tunnel) between Exit 4 – Montreal (downtown) / J.- Cartier Bridge and the entrance from Charron Island according to the following schedule:

Friday night to Saturday night, from 11 p.m. to 8 a.m.

Saturday night to Sunday night, from 11 p.m. to 9 a.m.

The entrances will close 30 minutes before the road is completely closed.

Souligny Ave. eastbound, between Dickson and Honoré-Beaugrand streets, will be closed 30 minutes before the complete highway closure.

Highway 25 towards Montreal

There will be a complete closure of Highway 25 towards Montreal (including the Louis-Hippolyte-La Fontaine tunnel) between Exit 90 – Highway 20 West / Route 132 / La Prairie / USA / Varennes / P. – E. – Trudeau Airport on Highway 20 and the entrance from Sherbrooke Street East according to the following schedule:

Friday night to Saturday night, from 11 p.m. to 8 a.m.

Saturday night to Sunday night, from 11 p.m. to 9 a.m.

The entrances will close 30 minutes before the road is completely closed.

Boucherville Street

De Boucherville Street northbound and the reserve lane southbound between Hochelaga and Tellier Streets will be closed during from Tuesday to Friday night starting from 9 p.m. to 5 a.m.

Highway 25 towards Montreal

The entrance from Notre-Dame East Street will be closed from Tuesday to Friday starting at 9 p.m. until 5 a.m.

Route 136 West

Route 136 westbound between Exit 5 – R.-Bourassa Boul. / Champlain Bridge / Victoria Bridge and the entrance from Lucien-L’Allier Street will be closed from Friday, Sept. 6 at 11 p.m. until Monday, Sept. 9 at 5 a.m.,

As a detour, motorists can take Mansfield Street, Saint-Antoine West Street, and the entrance ramp at Lucien-L’Allier Street.

The entrance ramp to Viger Ave. East and the entrance ramp towards Saint-Antoine Street East will be closed as a default.

Ville-Marie and Viger tunnels

The Saint-Laurent Blvd. overpass will reopen between Viger Ave. and Saint-Antoine Street overnight Saturday.

However, repair work on the Saint-Urbain Street overpass will start overnight Sunday and will continue until the end of 2026.

As a default, Saint-Urbain Street between Viger Ave. and Saint-Antoine Street will be completely closed to traffic.

There will be a detour heading south via De Bleury Street (Place Jean-Paul Riopelle), and drivers can take Saint-Laurent Boulevard heading north.

Avenue De Lorimier

De Lorimier Ave. northbound, near Sainte-Catherine Street and the right turning lane towards De Maisonneuve Blvd. will be closed from Friday 8 p.m. until Monday 5 a.m.

Detour streets will be available on Sainte-Catherine, Frontenac, and Sherbrooke Street.

R-132 / R-138 / Honoré- Mercier Bridge

There will be several road closures on the Honoré- Mercier bridge:

The ramp leading towards the R-132 east (towards La Prairie) will be closed from Friday 10 p.m. to Saturday 7 a.m.

The ramp driving towards the R-138 west (towards Châteauguay) will be closed on Saturday at 10 p.m. until Sunday 7 a.m.

The ramp coming from the R-138 east to the Honoré-Mercier bridge (towards Montreal) will be closed from Sunday 10 p.m. to Monday 5 a.m.

A-10 / R-132 / Samuel-De Champlain Bridge interchange

The R-132 East (towards Longueuil) from Marie-Victorin and Provencher Blvd., the ramps from A-10 East (Montreal / Samuel-De Champlain bridge) and the A-10 West, has been closed since Tuesday and will reopen in approximately two weeks.

Saint-Charles West Street

In Longueuil, the entrance on Saint-Charles Street West heading towards R-134 East and the R-132 East and West will be closed from Saturday 5 a.m. to Monday 5 a.m.

Bonaventure Highway

The ramp leading from the A-10 East (Bonaventure) towards the Samuel-De Champlain Bridge is closed until the end of September.

Nuns’ Island

The Pointe-Nord / Alexander-G.-Bell crossroads and the Jacques-Le Ber Street / René-Lévesque Blvd. entrances towards the A-10 West (Bonaventure) / Downtown are closed until the end of November.

The transport ministry noted that to ensure the durability of the structure, construction crews will replace the bridge deck, repair the foundation and work on the public network under the bridge.

Work may be postponed, extended, or cancelled due to weather conditions or operational constraints.

Drivers can also consult Québec 511, to properly plan their trip.