News   Feb 27, 2026
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Toronto Bloor–Danforth Line 2 Scarborough Subway Extension | ?m | ?s | Metrolinx

Ok but where is Diggy Scardust??


The most relevant image from the linked video:
Image 2026-01-29 at 21.24.jpeg
 
Stupid box structure they couldn't be bothered to redesign to support another tunnel on top of it 🫠
I don't understand how they can't, as part of a project to build a new LRT line, build what they need to have Line 5 run through the station. It is like the engineers decided they like straight lines and decided anything built during Line 5 construction is sacrosanct. How hard could the engineering be to make adjustments to the end of the Line 5 platform and turn the tracks to avoid the subway tunnel as far as it is an issue, and then return to the roadway? The north side is already expropriated for the subway construction related road diversion. Oh no, they might need to make some small adjustments to the end of Line 5... lets force transfers and walking between lines.

1769902568461.png
 
I don't understand how they can't, as part of a project to build a new LRT line, build what they need to have Line 5 run through the station. It is like the engineers decided they like straight lines and decided anything built during Line 5 construction is sacrosanct. How hard could the engineering be to make adjustments to the end of the Line 5 platform and turn the tracks to avoid the subway tunnel as far as it is an issue, and then return to the roadway? The north side is already expropriated for the subway construction related road diversion. Oh no, they might need to make some small adjustments to the end of Line 5... lets force transfers and walking between lines.

View attachment 712145

I believe there was a mention somewhere of putting a Line 5 stop underground at Midland Ave there.
 
I believe there was a mention somewhere of putting a Line 5 stop underground at Midland Ave there.

Even still, I can't understand why engineers can't figure out a solution to this problem. The ROW of the street alone supports 7 lanes of traffic, sidewalks and still has room for grass, and in addition to that they have expropriated even more space for construction. The subway tunnel diameter with its massive diameter is 10.7m... that is 3 to 3.5 lanes of roadway. That leaves more than half of the right-of-way plus the properties of the north to figure out how to build a Line 5 extension. Why is this difficult?

1769979800938.png
 

Reports and slide decks will start to be uploaded in the coming days for next Thursday’s board meeting.

I am hopeful the GO Expansion “path dependency” project slide makes an appearance instead of it being a one off.
Here is an update from the Metrolinx board meeting presentations.

Screenshot 2026-02-09 at 8.05.02 PM.png


Thanks to @PShells for digging up the links to this in the GO construction thread.
 
20m per day is faster than originally scheduled 10-15 but were still looking at in actuality a 2 year delay
The original maximum they quoted was 10-15 m/day, as far as I know. That line about “this year at this pace” feels like careful wording and I don’t think Michael Lindsay was trying to mislead, but I’m not convinced their numbers account properly for maintenance time.

I already started this:
Just to do the 'what we already know is a near impossible target' math...

This clocks the TBM down to about 1.8m/day since launch (1100m in about 20 months).

Estimating from the Metrolinx updates previously mentoned in the thread, they averaged 2.3m/day until it ran into problems. Here are the rough snapshots (date, total distance, speed from last snapshot) from updates I found previously:

Jan 2023 launch
Sep 2023 500m (2.1m/day)
Jan 2024 900m (3.3m/day)
Sep 2024 1100m (0.8m/day)

The remaining 5800m target by Jul 2026 (15 months from now) is not achievable if they max out the 'up to 10m/day' claims.

I think it's safe to say I'd eat my hat if this target is remotely met.

Edit: out of curiosity, if they get back to 3m/day, it will take another 5 years to dig... The anticipated opening year.
Am I going to need to start prepping the fryer for my Jays cap? Assuming there are no more long maintenance stops, I remember there’s at least one maintenance pause near Lawrence.

For fun, continued from above, here’s where we stand from recent updates:
  • Jan 2023: launch
  • Sep 2023: 500 m — 2.1 m/day
  • Jan 2024: 900 m — 3.3 m/day
  • Sep 2024: 1,100 m — 0.8 m/day
  • Jun 2025: 1,500+ m — 4+ m/day
  • Jul 2025: 1,900+ m — 13+ m/day
  • Aug 2025: 2,000+ m — 3+ m/day
  • Sep 2025: 2,368 m — 12 m/day
  • Nov 2025: 3,000 m — 10.5 m/day
  • Feb 2026: 3,450+ m — 5+ m/day
Pace has accelerated at times and even exceeded the original 10 m/day target max, but to finish on the remaining schedule they’d still need to average roughly 11–12 m/day, which is above the stated 10 m/day maximum when maintenance stops/time are included.
 
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