Good point! It was tough while I was up there to think of every possible project in view. I'll see if I have a photo framing it, and if so post to that thread...
This one gets an update from me with photos taken on December 29th, 2022. (notwithstanding a security guard who thought he might discourage me from taking pics from public property, LOL)
TTC tunnel structure encased on the left in this pic:
Now, we're looking inside a work tent set up on top of the TTC tunnel structure:
Now we head round to the south side and look back north: