There will be major closures going through the Decarie Interchange this weekend.

Drivers going from the 15 North to the 40 Westbound will have to detour via Marcel Laurin Blvd. because the normal, left-hand-lane ramp will be closed.

This closure will also affect drivers heading to Cote de Liesse.

Meanwhile motorists going south on Decarie Blvd. and attempting the enter the Expressway will have to detour as well.

They will have to turn right on St. Louis St., north of the train tracks, and then turn left on Marcel Laurin Blvd.

Decarie Blvd. will be closed from Dion St. until the overpass that crosses Marcel Laurin.

All of the above closures will begin around 11:30 p.m. Friday and continue until 5 a.m. Monday.