UBCx - Millennium Line Extension Arbutus to UBC | Proposed - Page 12

Sheba · #1 Posted **Nov 29, 2022, 6:54 AM**

Quote:

Originally Posted by Migrant_Coconut

... Where would they put it? Not a loaded question, I genuinely don't see any room for one.

Ooh I know - we'll have a completely underground OMC. It won't cost all that much money to do...

Tvisforme · #2 Posted **Nov 29, 2022, 7:20 AM**

Quote:

Originally Posted by Sheba

Ooh I know - we'll have a completely underground OMC. It won't cost all that much money to do...

The Expo Line repurposed the existing Dunsmuir Tunnel; perhaps the UBC extension can use the fabled "UBC tunnels" for an OMC...

trofirhen · #3 Posted **Nov 29, 2022, 7:42 AM**

Quote:

Originally Posted by Sheba

Ooh I know - we'll have a completely underground OMC. It won't cost all that much money to do...

Quote:

Originally Posted by Tvisforme

The Expo Line repurposed the existing Dunsmuir Tunnel; perhaps the UBC extension can use the fabled "UBC tunnels" for an OMC...

Seriously, given that UBC, and Point Grey west of Alma, is an escarpment of which the western tip and UBC are part, gives rise to the question of "What's the escarpment geology?"
Is it a granite plateau - in which case forget digging - is it large boulders, strata (clay rock earth, for example, or what? If possible, I'd love to the western line there in a tunnel. With a deep station.
Escalators going deep, as at Granville Station. Lighting effects, fantastic art on the walls and in and at the station, elegant stations and platforms, ... (excuse me, just a dream sort of, but I'd love to see it anyway.)

aberdeen5698 · #4 Posted **Nov 29, 2022, 2:20 PM**

Quote:

Originally Posted by trofirhen

Seriously, given that UBC, and Point Grey west of Alma, is an escarpment .... I'd love to the western line there in a tunnel. With a deep station.

"The next station is: Wreck Beach. Terminus Station."

Changing City · #5 Posted **Nov 29, 2022, 5:50 PM**

Quote:

Originally Posted by trofirhen

Seriously, given that UBC, and Point Grey west of Alma, is an escarpment of which the western tip and UBC are part, gives rise to the question of "What's the escarpment geology?"
Is it a granite plateau - in which case forget digging - is it large boulders, strata (clay rock earth, for example, or what? If possible, I'd love to the western line there in a tunnel. With a deep station.
Escalators going deep, as at Granville Station. Lighting effects, fantastic art on the walls and in and at the station, elegant stations and platforms, ... (excuse me, just a dream sort of, but I'd love to see it anyway.)

It's not granite. The only parts of Vancouver where that is found near the surface is around QE Park, (created from a former rock quarry) and the seastack off the edge of Stanley Park. Most of UBC is the usual grey glacial material found throughout the region, but there's also some sandstone, with a tendency to slump, sometimes fatally.

jollyburger · #6 Posted **Nov 29, 2022, 9:18 PM**

Canada Line looks like it went through a lot of sandstone. Research paper on the performance of the TBM etc.

http://www.selitunnel.com/pdf_articoli/Canada_line_per_sito.PDF

Helvetia · #7 Posted **Jan 5, 2023, 4:14 AM**

Given that the UBC extension is supposed to be part of year 6-10 of TransLink's 10 Year Priorities, is it fair to optimistically assume construction to begin in 2027 (year 6)?

And is there any back-of-the-envelope estimates on the number of years required until completion? I assume it would be less than the 5-6 taken by the Broadway Subway project since the remaining distance won't need to be 100% tunnelled, but perhaps having to build underground storage space for trains at UBC would counteract that...

Migrant_Coconut · #8 Posted **Jan 5, 2023, 7:28 AM**

Hey, welcome to the forum.

I'd say that any kind of ETA would be guesswork when we don't even have a fixed alignment yet. And keep in mind that even if it's not completely tunnelled, you've still got an extra km and a half more to go than VCC-Arbutus... and construction in itself often ends up years behind or ahead of schedule.

aberdeen5698 · #9 Posted **Jan 5, 2023, 2:17 PM**

The only real question about the UBC extension is when it will be funded. Once that's resolved, it'll be full steam ahead, but not before.

Helvetia · #10 Posted **Jan 5, 2023, 7:32 PM**

Quote:

Originally Posted by Migrant_Coconut

Hey, welcome to the forum...

Thank you! A part of me still dreams of it being completed by 2030, though I guess that's pretty wishful at best. I'll still probably find a way to ride it on opening day... whenever that is

chowhou · #11 Posted **Jan 5, 2023, 7:34 PM**

Quote:

Originally Posted by Helvetia

Thank you! A part of me still dreams of it being completed by 2030, though I guess that's pretty wishful at best. I'll still probably find a way to ride it on opening day... whenever that is

Some of us dreamers still have a spark of hope that funding will come before the Broadway Extension is completed and construction simply continues on to UBC which might allow for a 2030 opening.

Wouldn't bet money on it though.

Tvisforme · #12 Posted **Jan 5, 2023, 7:40 PM**

Quote:

Originally Posted by chowhou

Some of us dreamers still have a spark of hope that funding will come before the Broadway Extension is completed and construction simply continues on to UBC which might allow for a 2030 opening...

Worth a shot as the TBMs approach Arbutus?

jollyburger · #13 Posted **Jan 5, 2023, 7:40 PM**

Quote:

Originally Posted by chowhou

Some of us dreamers still have a spark of hope that funding will come before the Broadway Extension is completed and construction simply continues on to UBC which might allow for a 2030 opening.

Wouldn't bet money on it though.

They've done zero of the design/geotechnical work on the extension so it seems like wishful thinking. Not to mention that it will most likely be mostly above ground guideway.

chowhou · #14 Posted **Jan 5, 2023, 9:05 PM**

Quote:

Originally Posted by jollyburger

They've done zero of the design/geotechnical work on the extension so it seems like wishful thinking. Not to mention that it will most likely be mostly above ground guideway.

Based on the Broadway Extension project timeline we still have a year. Get to work planners!

mcj · #15 Posted **Jan 5, 2023, 9:49 PM**

Quote:

Originally Posted by madog222

-Single station at UBC under the trolley bus loop.
-Tail track for train storage will allow for extension south or potentially directly to the 41st/49th line.
-UBC station is underground, line through UEL is either elevated along University Blvd or tunneled under the golf course.
-Line though CoV is as expected, tunneled with stations at Jericho, Alma, and Macdonald

Image from Translink

Quote:

Originally Posted by jollyburger

Not to mention that it will most likely be mostly above ground guideway.

Only the section running along University Blvd would be above ground, and Translink is still debating between that and a tunneled option.