The final weekend of the construction holiday will be chock-full of fun events where people on feet will take over the street.

There will be plenty of construction too.

The Osheaga festival takes place on Ile Notre Dame on Friday-Saturday-Sunday, and with 150,000 people expected to attend, the provincial government is urging people to take public transportation to get to the site.

The finale of the international fireworks competition is Saturday, and that means the Jacques Cartier Bridge will once again be closed from 8:30 p.m. until 11:45 p.m.

Saturday's fireworks show will feature the music of Harmonium and their frontman, Serge Fiori.

On Saturday thousands of people will be flocking to the Old Port for the Montreal International Triathlon -- and that will mean more street closures.

Races start at 8 a.m. in the Jacques Cartier Basin, with bicyclists then heading along Notre Dame St. and Viger St. to Papineau Ave. and back.

The running portion of the course is a complex 'loop' between the Jacques Cartier Pier and the Quai De L'Horloge.

Click here to see the route for the bicycle race

Ville Marie Expressway closed

The major east-west bypass through downtown Montreal will be closed for much of the weekend.

Eastbound Highway 720/Route 136 closes from the Turcot Interchange to the Notre Dame/Cathedrale entrance from 11:59 p.m. Friday Aug. 4 until 5 a.m. Monday Aug. 7.

Because of the fireworks, everything will be closed until Panet St. from 8:30 p.m. until midnight on Saturday.

Exit 6 (St. Laurent/Berri) will be closed from 10 p.m. Friday until 5 a.m. Monday.

Due to the triathlon, Exit 7 (Papineau/De Lorimier/Jacques Cartier Bridge) will be closed Saturday from 3:30 a.m. until 5 p.m, then for the same hours on Sunday.

Westbound traffic on the Ville Marie will also be affected.

The highway will be closed between the Panet St. entrane and the Hotel de Ville entrance on Saturday from 7 a.m. until 5 p.m., and again on Sunday.

Two of three lanes on St. Antoine St., between Hotel de Ville and Gosford, will be closed from 10 p.m. Friday until 11:59 p.m. Monday.

Turcot Construction

Ramps through the Turcot Interchange will be closed this weekend as crews install beams and support pillars for Route 136.

The ramp from Decarie South to downtown Montreal closes at midnight Friday and reopens at 5 a.m. Monday.

The connection from Highway 20 East to the 720/Route 136 will also be closed.

Transport Quebec recommends drivers head south on Highway 15 until the Bonaventure, Highway 10.

St. Pierre Interchange

Drivers coming from the Mercier Bridge into Montreal will also face detours.

The ramp connecting Route 138 to Highway 20 East will be closed from 11 p.m. Friday Aug. 4 until Monday at 5 a.m.

One of two lanes on Highway 20 East will be closed from midnight Friday until 5 a.m. Monday.