Major delays are starting Monday, with work on the CP rail overpass, connecting Belleville to The County.
Bay Bridge to Sidney Street will remain four lanes during the first portion of work, while Bay Bridge to Dundas will be down to two lanes.
Meantime, Phase One of the Picton Main Street project begins this morning.
You may have already seen fewer parking spaces on Main Street from Bridge to Ross Street in preparation for the work.
The complete closure of Main Street will be for vehicular traffic, however pedestrians will still have access to sidewalks and local businesses.