Traffic hotspots to avoid on Saturday

It will be a hard slog to get to the South Shore today as roadwork will be affecting several spans and routes.
Mercier Bridge
The bridge will undergo repair and maintenance work starting at 1 a.m. Saturday. The span toward Kahnawake will be closed completely and only one lane in the opposite direction will be open. By default, the same work will close the entrance to Airlie St. where the roadway connects with Highway 138.
Exit 63 on Highway 20 westbound (connecting motorists to the bridge as wel