Closures to be expected in Montreal this weekend

Mobility Montréal advises road users that major traffic disruptions are expected over the weekend in Montreal.

HIGHWAY 15 / LAURENTIDES

Friday 10:30 p.m. to Saturday 7 a.m.
Sunday 10 p.m. to Monday 5 a.m.

• In Montreal (arr. Villeray, Saint-Michel, Parc-Extension), on the A-15 north (des Laurentides), complete closure between the A-40 and the access from Henri-Bourassa Blvd. West.

Detour: via A-40 East, exit 71, continue on boul. Crémazie east, U-turn via av. Querbes and de l’Acadie Blvd. North.

Default:

• • On A-40 East, exit 70 (A-15 North, Laval).
    Follow the main detour.
  • On A-40 West, in exit 70 (A-15 North, Laval), the ramp to A-15 North.
    Detour: via A-40 West, Deslauriers Street, Lebeau Blvd., Côte-Vertu Road / Sauvé Street West and de l’Acadie Blvd. North.
  • Access from the A-40 West service road (Crémazie Blvd. West).|
    Detour: continue on the A-40 west service road, Deslauriers Street, Lebeau Blvd., Côte-Vertu Road / Sauvé Street
  • Access from the A-15 north service road.
    Detour: via de l’Acadie Blvd. North.
  • Access from Côte-Vertu Blvd. / Sauvé Street West.
    Detour: via Sauvé West, Birnam and Port-Royal streets and de l’Acadie Blvd. North.

Saturday 7 a.m. to Sunday 10 p.m.

• In Montreal (arr. Villeray, Saint-Michel, Parc-Extension), on the A-15 north (des Laurentides), partial closure of 1 lane out of 3, between the A-40 and the access from Sauvé Street West.

Default:

• • Access from the A-40 West service road (Crémazie Blvd. West).
    Detour: continue on the A-40 west service road, Deslauriers Street, Lebeau Blvd., Côte-Vertu Road / Sauvé Street West and de l’Acadie Blvd. North. Trucks: via Charles-de LaTour and Legendre streets and de l’Acadie Blvd. North.
  • Access from the A-15 north service road.
    Detour: via de l’Acadie Blvd. North.
  • Exit 2 (Boulevard de l’Acadie, Henri-Bourassa Boulevard, Sauvé Street).
    Detour: via exit 4 (De Salaberry Street) and Boulevard de l’Acadie South.
  • Access from Côte-Vertu Blvd. / Sauvé Street.
    Detour: via Birnam and Port-Royal streets and de l’Acadie Blvd. North.

Risk of congestion, Saturday and Sunday during the day. Plan your trips.

HIGHWAY 40 / METROPOLITAN (Saint-Michel and Pie-IX sector)

Friday 10 p.m. to Monday 5 a.m.

• In Montreal (Villeray, Saint-Michel, Parc-Extension district), on the A-40 West (Metropolitan), closure of access from Saint-Michel Boulevard.

Detour: continue on Crémazie Boulevard West until you reach the Jarry Street access

Friday 10:30 p.m. to Monday 5 a.m.

• In Montreal (arr. Villeray, Saint-Michel, Parc-Extension), on the A-40 west service road (Crémazie Boulevard West), partial closure of 1 out of 3 lanes, between Highway 8^e and the 1^re Avenue.

Note: from Friday 10 p.m., 2^e Avenue closed northbound, under Highway 40.
Detour via the A-40 East service and U-turn at Saint-Michel Boulevard.

A-10 / R-132 INTERCHANGE

Friday 10 p.m. to Monday 5 a.m.

• In Brossard, in exit 6 of the A-10 East (R-132, La Prairie, Varennes), partial closure of 1 lane out of 2.

Default: the ramp leading from the A-10 east (from the Eastern Townships) to the Hwy. 132 west (towards La Prairie).
Detour: ramp to Hwy. 132 East (towards Varennes) and U-turn at exit 76 (Simard Boulevard).

ROUTE 116 / SIR WILFRID LAURIER BOULEVARD

Friday 9 p.m. to Monday 5 a.m.

• In Saint-Bruno-de-Montarville, on Hwy. 116 (Sir-Wilfrid-Laurier Boulevard), traffic is the wrong way on the westbound roadway (1 lane in each direction), between Seigneurial Boulevard Ouest and De Boucherville boulevards.

Note: Obstruction in effect on weekends until the end of November. See the press release.

HIGHWAY 158 / SIR WILFRID LAURIER HIGHWAY

Friday 9 p.m. to Monday 5 a.m.

• In Mirabel, on the Hwy. 158 (Sir-Wilfrid-Laurier Road), complete closure in both directions, between the A-15 (des Laurentides) and Saint-Simon Road.

Detour: westbound, via ramp to A-15 south, exit 35 to A-50 west and exit 279 to Saint-Simon Road. Eastbound, via ramp to A-50 East, exit 292-N to A-15 north and exit 39 to R-158 east.

Default: in exit 39 of the A-15 south, the ramp to R-158 west.
Detour: via ramp to R-158 East, Hwy. 117 South, A-50 West and exit 279 to Chemin Saint-Simon and R-158.

HIGHWAY 20 / JEAN-LESAGE

Friday 11 p.m. to Saturday 8 a.m.

• On the A-20 (Jean-Lesage) in Boucherville, complete closure westbound, between exit 95 (De Montarville Boulevard) and the next access

Note: via the output.

Saturday 11 p.m. to Sunday 9 a.m.

• On the A-20 (Jean-Lesage) in Boucherville, complete closure eastbound, between exit 95 (De Montarville Boulevard) and the next access

Note: via the output.

Friday 9 p.m. to Saturday 9 a.m.
Saturday 9 p.m. to Sunday 9 a.m.

• On the A-20 (Jean-Lesage) in both directions, between exits 109 eastbound in Saint-Mathieu-de-Beloeil and 113 westbound in Mont-Saint-Hilaire, including the Arthur-Branchaud Bridge in Beloeil, traffic in the opposite direction on the westbound roadway (1 lane in each direction).

Note: westbound, closure of the first lane, 30 minutes before.

Default: 60 minutes before, eastbound

• • Access from rue Saint-Jean-Baptiste.
  • Exits 112 (Beloeil, rue Richelieu / Saint-Marc-sur-Richelieu) and 113 (R-133, Mont-Saint-Hilaire / chemin des Patriotes / Saint-Charles-sur-Richelieu).
  • Access from rue Serge-Pépin.

Friday 8 p.m. to Saturday 9 a.m.
Saturday 9 p.m. to Sunday 9 a.m.

• In Mont-Saint-Hilaire, upstream of exit 115 (La Grande-Allée, Saint-Jean-Baptiste, Saint-Damase), partial closure of 1 lane out of 2.

TO PLAN

De Lorimier Avenue in Montreal

• In Montreal (Ville-Marie district), on De Lorimier Avenue in both directions, between De Maisonneuve Boulevard and Logan Street, traffic in the opposite direction on the south roadway (1 northbound lane and 2 southbound lanes), Saturday from 7 a.m. to 7 p.m.

Work under the responsibility of the City of Montreal.

Notre-Dame Street East in Montreal

• In Montreal (arr. Mercier, Hochelaga-Maisonneuve), on Notre-Dame Street West, between de Bourbonnière and Davidson streets, traffic in the opposite direction on the opposite road (1 lane in each direction), from Friday 8 p.m. to Saturday noon.

Work under the responsibility of the City of Montreal.

Victoria Bridge

• Due to the continuation of work on Bridge Street for an undetermined period of time, the Victoria Bridge will remain configured with one lane in each direction at all times until Bridge Street is fully reopened.

A-13 / A-520 Interchange

• Night closures will be in place in Montreal on the A-13 (Chomedey), at the level of the A-520 (Côte-de-Liesse), until November 2, 2026. These closures are required for the continuation of reconstruction work on the A-520 overpass over the A-13. The detours will be marked by temporary signage. See the press release.

Service road for the A-15 south in Brossard

• Complete closures of the service road of the A-15 south in Brossard will take place at night until October 7, 2026. These obstructions are required as part of the paving work on Highway 15 South, which includes paving work on Marie-Victorin Boulevard westbound, between the Samuel De Champlain Bridge area and Tessier Street. See the press release.

Highway 520 (Côte-de-Liesse)

• In Dorval, on the A-520 West (Côte-de-Liesse), closure of the access from boul. Roméo-Vachon southbound, until Thursday, November 11 at 11:59 p.m.

Detour: via ramp to A-20 East and U-turn at exit 58 (55^e Avenue).

In the event of adverse weather conditions or operational constraints, work may be cancelled or modified. Check the Quebec511.info regularly for current and upcoming obstructions.