Highway One Improvements: North Vancouver / Ironworkers Memorial Approach | Completed

[jollyburger]

From some BC Highways technical definitions document:

Underpass: means a structure carrying a road or lesser highway over a highway

Overpass: means a structure carrying a highway over a road or lesser highway

https://www2.gov.bc.ca/assets/gov/drivin...lines/bridge/volume-1/2016/section-1.pdf

[Trexer]

Underpass was open this evening for both east and westbound traffic

[Tvisforme]

Originally Posted by Trexer

Underpass was open this evening for both east and westbound traffic

Thanks for the update. When I went over it around 2 PM, it was open only for westbound traffic.

[waves]

Originally Posted by jollyburger

From some BC Highways technical definitions document:

https://www2.gov.bc.ca/assets/gov/drivin...lines/bridge/volume-1/2016/section-1.pdf

This is such a backwards definition. Overpass and underpass are compound words with the preposition "over" and "under" and the noun/object "pass". When we use a preposition we must be relating two things together and here we have a clear hierarchy of importance with "freeway" being more important than an "arterial". The natural way that this should be described is in relation to the more important object, thus, it really should be the Keith Road Overpass. Since Kieth Road goes "over" the highway. An opposite example would be the 1st street underpass.

Instead, what BC seems to do is say that "object" that we are comparing is not the roadways themselves but the perspective of the drivers on the highway. "We are going over 1st street and under Keith Road, therefore 1st street overpass and Keith Road underpass".

Just consider the brand new Pedestrian Bridge over Highway 1 connecting Burnaby Lake and Deer Lake Parks. They don't call it a "Pedestrian Underpass". That would be absurd.

https://dailyhive.com/vancouver/burnaby-lake-deer-highway-1-pedestrian-bridge-overpass-design

[jollyburger]

Originally Posted by waves

This is such a backwards definition. Overpass and underpass are compound words with the preposition "over" and "under" and the noun/object "pass". When we use a preposition we must be relating two things together and here we have a clear hierarchy of importance with "freeway" being more important than an "arterial". The natural way that this should be described is in relation to the more important object, thus, it really should be the Keith Road Overpass. Since Kieth Road goes "over" the highway. An opposite example would be the 1st street underpass.

Instead, what BC seems to do is say that "object" that we are comparing is not the roadways themselves but the perspective of the drivers on the highway. "We are going over 1st street and under Keith Road, therefore 1st street overpass and Keith Road underpass".

Just consider the brand new Pedestrian Bridge over Highway 1 connecting Burnaby Lake and Deer Lake Parks. They don't call it a "Pedestrian Underpass". That would be absurd.

https://dailyhive.com/vancouver/burnaby-lake-deer-highway-1-pedestrian-bridge-overpass-design

All pedestrian bridges are overpasses and railways are underpasses.

I agree with you and most people will call them overpasses. But then reading the definition that also for some reason seemed logical as well.

[djmk]

A big chunk of the old underpass is now gone.

[chowhou]

Originally Posted by djmk

A big chunk of the old underpass is now gone.

Yep, I drove over the new underpass to Mountain, then came underneath expecting to see two overpasses, but the middle section of the old underpass is completely gone now.

[madog222]

Demolition of the Fern St. Overpass by B.C. Ministry of Transportation and Infrastructure, on Flickr

[djmk]

the structure is completely gone now. Just clean up remains

[madog222]

Dollarton Highway on-ramp in progress.


by B.C. Ministry of Transportation and Infrastructure

[Tvisforme]

Originally Posted by madog222

Dollarton Highway on-ramp in progress.

I'm looking forward to this change. I'd rather have had a total rebuild, preferably with a realigned connection to the IWM to lose the S-bend. However, this should cut out the merging and lane-swapping in what is already a tight stretch of the highway.

[chowhou]

Originally Posted by Tvisforme

I'm looking forward to this change. I'd rather have had a total rebuild, preferably with a realigned connection to the IWM to lose the S-bend. However, this should cut out the merging and lane-swapping in what is already a tight stretch of the highway.

As long as Seymour Creek 2 is where it is, that's just never going to happen. I'm pretty excited too, that onramp is a disaster, and consider the fact that every bus leaving the North Shore via the Second Narrows has to take that onramp!

[Tvisforme]

Originally Posted by chowhou

As long as Seymour Creek 2 is where it is, that's just never going to happen. I'm pretty excited too, that onramp is a disaster, and consider the fact that every bus leaving the North Shore via the Second Narrows has to take that onramp!

Yes, I'd think that there would have to be some significant form of compensation to get any rearrangement of the SC2 lands, and it would be a complicated negotiation with multiple levels of government. However, it may be attractive to the Squamish Nation if a realignment - perhaps with elevated sections coming off of the bridge - gives them better access to their lands and allows them to more easily develop and use it.

[djmk]

half of the old bridge over Seymour Creek is wrapped in white plastic.

Anyone know why they did this?

[Alex Mackinnon]

Originally Posted by djmk

half of the old bridge over Seymour Creek is wrapped in white plastic.

Anyone know why they did this?

I'd bet they're probably sandblasting it and/or repainting it.

I saw some kind of HVAC unit attached, it's either for handling dust or controlling the conditions inside the tent.

[djmk]

this forum knows everything

thanks

[jollyburger]

Originally Posted by Alex Mackinnon

I'd bet they're probably sandblasting it and/or repainting it.

I saw some kind of HVAC unit attached, it's either for handling dust or controlling the conditions inside the tent.

Hopefully they paint it orange again.

[Jimbo604]

Is it just me or are they twisting themselves into a pretzel in their plans saving the orange bridges? Is there are reason they just don't replace them with a bridge with the needed number of lanes?

[jollyburger]

Originally Posted by Jimbo604

Is it just me or are they twisting themselves into a pretzel in their plans saving the orange bridges? Is there are reason they just don't replace them with a bridge with the needed number of lanes?

It's just going to be two ways each way anyways so I guess there's no real benefit to changing out the bridge configuration. They already have the new bridges next to it for the onramp/express lanes to bypass the highway.



https://www.nsnews.com/local-news/provin...-north-vancouver-highway-project-3090155

[officedweller]

Construction staging was also probably easier keeping the old bridges in place.