reinventingthewheel said:
That wall is Front street, there’s another deep pit on the other side. The space between will be carved out with smaller machines then the TBM will launch from here in the opposite direction of the photo.
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Is that true? I thought both are launching from Exhibition?
 
kotsy said:
Pretty sure you are correct. Corktown is where their journey will end.
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Metrolinx said (June 2025)...

"The first two Ontario Line tunnel boring machines (TBMs) will end their six-kilometre journey from just east of Exhibition Station at the Don Yard, which will serve as one of the subway line’s four tunnel portals."

So they are ending at the Don Yard? or are we talking about something else that I'm missing?
 
GameOnBrad said:
Metrolinx said (June 2025)...

"The first two Ontario Line tunnel boring machines (TBMs) will end their six-kilometre journey from just east of Exhibition Station at the Don Yard, which will serve as one of the subway line’s four tunnel portals."

So they are ending at the Don Yard? or are we talking about something else that I'm missing?
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Lots of conflicting communications from ML. The original spec was for eastbound and westbound TBMs to meet at Queen.

I will inquire.
 
reinventingthewheel said:
Lots of conflicting communications from ML. The original spec was for eastbound and westbound TBMs to meet at Queen.

I will inquire.
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This is the article I'm referring to. Dated June 20, 2025. Second paragraph.

www.metrolinx.com

What’s going on at the Don Yard?

Get to know the site where the Ontario Line will transition from underground to above ground.
www.metrolinx.com
 
nfitz said:
That was years ago wasn't it?
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Not sure how this would make sense, TBM extraction at Queen would be a nightmare. Most recent info from MX I've read states both TBMs will launch eastward from the Ex and travel continuously to the extraction portal currently being constructed in the Don Yard, as others have stated.
 
I do remember a rumor on how they were going to move the tbm's across queen and osgoode, similar to how they did it for crosstown. Guess they decided against it for obvious reasons
 
The TBMs will travel from Exhibition to Don Yard portal.
After the last push through the portal headwall, the cutter heads will be retrieved at Don Yard. The shields will be buried underneath the portal (cut and cover portion). The backup gantries will travel back and be retrieved at Corktown South shaft.

1754492596278.png
 
allabootmatt said:
This is probably worth a new thread, but I am very curious about the next wave of subway projects. Clearly a Sheppard extension is coming, but after that it's a big question mark.

OL extensions at both ends are possible of course. I would also advocate for a subway in the College/Dundas/Gerrard corridor; additionally, since the QQE LRT is going nowhere, it's interesting to think about whether some kind of waterfront line might feasible, perhaps connecting to East Harbour.

Then in the outer 416, still lots of corridors unserved. Jane and Dufferin come to mind.
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I believe we have a fantasy thread...
 
Frankietls said:
The TBMs will travel from Exhibition to Don Yard portal.
After the last push through the portal headwall, the cutter heads will be retrieved at Don Yard. The shields will be buried underneath the portal (cut and cover portion). The backup gantries will travel back and be retrieved at Corktown South shaft.

View attachment 671415
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Cheers for that. So my information about the westbound TBM is outdated. As for the Don Yard it seems we were both correct - the TBM is traveling there but not being extracted there.
 
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