King Street underpass at the transit hub

[KevinL]

Will the Go Train be out of commission at all while this is being worked on? I can't image they'd be able to keep functioning track work throughout the entire process, can they?

I don’t believe GO service stopped for the Weber St. overpass work. There are also freight trains and interrupting that service is very expensive. I would expect only very brief interruptions.

They'll be able to stage the work so the line remains open at all times; basically they'll dig half the space and erect half the bridge span, then move the rails onto it, then dig the other half and complete the span. Though likely a bit more complex than that.

They have the advantage of only having to keep the rail line open, while King is completely shut.