Trans Canada Highway Twinning: Segments U/C

[casper]

Originally Posted by thewave46

Indeed.

It cost the Province of Ontario $174m in 2016 to build 14km of fully-divided Highway 69 freeway through Canadian Shield.

$162m for 2.6km of two-lane road? Yikes.

Would be better to spend that kind of money on helping to bring back the island passenger railway service.

[Metro-One]

A better alternative would have been to build a new crossing from Deep Cove to Cowichan Bay, and having forgone any upgrades to the Malahat.

This would then reroute the #1 down the 17 to Victoria (which would also be upgraded in this fantasy project)

This new bridge would also be both highway and passenger rail.

This is what would have been done in any other developed nation.

As for the project that’s actually happening.

It’s so expansive for so little for many reasons, partly because of the blasting required, but mostly because of the extreme environmental protection lengths being done with the stream. And even this, as shown in the article, isn’t enough to satisfy.

[Tvisforme]

Originally Posted by Metro-One

A better alternative would have been to build a new crossing from Deep Cove to Cowichan Bay, and having forgone any upgrades to the Malahat.

This would then reroute the #1 down the 17 to Victoria (which would also be upgraded in this fantasy project)....

It's certainly an interesting idea, although it might be better to route Highway 1 closer to 17A's route through Saanich. Highway 17 already slows down significantly with ferry traffic.

[Dengler Avenue]

WSDoT is creative in widening I-90 through Snoqualmie Pass: https://maps.app.goo.gl/j6PCCtLFucEFCWga8?g_st=ic
(Related article: https://www.enr.com/articles/50734-e...s-dam-phase-1c)
Here, the widening requires replacing the snowshed with a viaduct: https://maps.app.goo.gl/jNENCG3gmaiMJLHi6?g_st=ic
(Related article: https://highways.dot.gov/public-road...noqualmie-pass)

This project may provide clues on twinning TCH through the Three Valley Gap (i.e. putting EB lanes on a higher ground with retaining walls) and through the snowsheds in National Parks (i.e. replacing the snow shed with a bridge).

[feepa]

I finally got to drive the completed section of the kicking horse portion of hwy between field and golden. Even though they had it down to one lane each direction, it made quite the difference. Calgary to Golden in the 80s was a 3 hour drive. It's now closer to 2. Would be nice if Parks Canada could do the section from the ab border to kicking horse.

[craner]

Originally Posted by feepa

I finally got to drive the completed section of the kicking horse portion of hwy between field and golden. Even though they had it down to one lane each direction, it made quite the difference. Calgary to Golden in the 80s was a 3 hour drive. It's now closer to 2. Would be nice if Parks Canada could do the section from the ab border to kicking horse.

It sure would - it is ready to go but alas, no funding

http://https://parks.canada.ca/pn-np/bc/yoho/gestion-mgmt/rtc-tch

http://https://parks.canada.ca/-/media/pn-np/bc/yoho/wet4/pdf/tch-twinning/apercu-du-projet_phaseivb_project-overview.pdf?_ga=2.148606199.1305111974.1581079983-1263092526.1581079983

[craner]

Originally Posted by Dengler Avenue

WSDoT is creative in widening I-90 through Snoqualmie Pass: https://maps.app.goo.gl/j6PCCtLFucEFCWga8?g_st=ic
(Related article: https://www.enr.com/articles/50734-e...s-dam-phase-1c)
Here, the widening requires replacing the snowshed with a viaduct: https://maps.app.goo.gl/jNENCG3gmaiMJLHi6?g_st=ic
(Related article: https://highways.dot.gov/public-road...noqualmie-pass)

This project may provide clues on twinning TCH through the Three Valley Gap (i.e. putting EB lanes on a higher ground with retaining walls) and through the snowsheds in National Parks (i.e. replacing the snow shed with a bridge).

Thanks for posting this Dengler (I love ENR).
I hope this a real possibility (and not just fantasy) for widening the TCH through the Three Valley Gap and Rogers Pass snow sheds sections.
Would be great to drive from Calgary to Vancouver on a fully 4-laned modern highway in my lifetime.