UpperAvenue said:
Is that to allow the concrete to cure before drilling into it?
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Yes, when they come back they over drill the cured column so you end up with a continuous mostly watertight wall. When it's all finished they call it the bathtub because they excavate within the exterior walls without worrying too much about water caving in the sides. I learned this from watching 45 Bay St construction. There are also youtube videos showing the process, it's quite fascinating to watch how this stuff is done.
 
From this morning

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New Community Centre: Community Meeting

Wednesday, April 4, 2018

Time: 6:30pm - 8:30pm (Drop-in anytime)

Presentation at 7:00 pm

Place: Toronto Star building

1 Yonge Street, ground floor

The Warehouse Room

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raptor said:
Just wanted to point out that there will be 6 levels of underground parking.
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Wonder what the water situation will be like that far down. Likely going to find a lot of wood and debris since it's all infill there too.
 
Contra said:
Wonder what the water situation will be like that far down. Likely going to find a lot of wood and debris since it's all infill there too.
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It's the shallow areas that the debris is typically found. after 20-30 feet you hit the original lake bottom and it stops being a concern.
 
Question about the PATH connection from this complex. It is my understanding that it'll be an enclosed above ground walkway, but the Jarvis St exit ramp is lower than the Gardiner expressway. How is it feasible to install that walkway below that ramp?
 
The PATH connection is dependent upon replacement of the Jarvis offramp with a Yonge one.

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