Interesting find by Steve.
Metrolinx quietly slipped a major change in its joint Lakeshore East / Ontario Line corridor plans by way of a web page update with no accompanying announcement or explanation. Current version of w…stevemunro.ca
That looks like an extraordinary amount of work they are adding out of the blue. Re-grading the entire corridor and raising the bridges is not some trivial task. That could add a lot of time to the project. I guess there will be a lot of weekend closures for the bridge work on Lakeshore East.
I wonder if it's some safety consideration over the possibility of a truck not making the bridge clearance on the road below, ramming the side of the bridge, and then causing some kind of damage that forces a shutdown of the Ontario Line, or even no damage, but shutdown for a few hours for inspections? That's the only thing that comes to mind, other than they simply want to take this as an opportunity to update the bridge clearances to contemporary norms.