From July 15 to 17, 2023, the Ministère des Transports et de la Mobilité durable is informing users of the following closures. To adequately plan your travels to the airport, please consult Québec 511. 

Redevelopment of the Dorval interchange – Autoroutes 20 and 520 

Autoroute 20 eastbound  

Complete closure of Autoroute 20 eastbound between exit 56 – P.-E. Trudeau / A-520 east / Av. Dorval and the entrance from boulevard Bouchard, from Sunday 11 pm to Monday 5 am.  

Road users will be asked to take a marked diversions via chemin Herron.  

Autoroute 20 westbound  

Complete closure of Autoroute 20 westbound between Exit 56-O – P.-E. Trudeau and the entrance from Montréal-Toronto Boulevard from Monday 11 pm to Tuesday 5 am.  

Road users will be asked to take a marked diversions via Roméo-Vachon Nord and Albert-de-Niverville boulevards, Cardinal Avenue and McMillan boulevard. 

Autoroute 520 eastbound  

Complete closure of Autoroute 520 eastbound between Exit 1-E – Av. Cardinal and the entrance from the airport, from Tuesday 9 pm to Wednesday 5 am.  

The exit leading to the airport will be closed by default.  

Road users will be asked to take a marked diversions via avenue Michel-Jasmin. 

Saint-Pierre interchange   

Closure of the Saint-Pierre interchange ramp leading from the Honoré-Mercier Bridge to Autoroute 20 westbound (and towards Dorval and the airport). On Friday night, only one lane will be open on Autoroute 20 westbound in the area of the interchange.   

Detours will be marked with temporary signs.