Toronto Ontario Line 3 | ?m | ?s | Metrolinx

[kotsy]

Exhibition portal update from today:

 

[jordanmkasla2009]

Exhibition portal update from today:

View attachment 636064

View attachment 636063

PROGRESS!!! can't wait until they launch the TBMs

 

[Allandale25]

Exhibition portal update from today:

View attachment 636064

View attachment 636063

Those cross beams look like the permanent ones and not just temporary ones for construction? cc @crs1026 @smallspy

 

[kotsy]

Those cross beams look like the permanent ones and not just temporary ones for construction? cc @crs1026 @smallspy

You're probably right. The rendering for the Lower Don portal also has them.

 

[81-717]

^that RH line curve gives off streetcar curve vibes in that render.

 

[Frankietls]

Those cross beams look like the permanent ones and not just temporary ones for construction? cc @crs1026 @smallspy

For the East portion of the portal (~1/3 of total length) there will be 3 layers of struts & bracing, the top 2 layers are permanent.
For the rest of the portal there will be 2 layers with only the top one being kept permanently.

 

[TOtramz]

Why are the struts exposed instead of being covered with concrete? I assume it would be better for rust proofing

 

[crs1026]

Why are the struts exposed instead of being covered with concrete? I assume it would be better for rust proofing

If they are like all the other struts in recent projects, they are a metal that will gradually oxidise to rust red, at which point the oxidation stops and they do not need further rustproofing.

- Paul