Metro Vancouver Road Infrastructure Discussion

[chowhou]

Originally Posted by Changing City

The article suggests the bridge deck was concrete, not asphalt. If you look on Google aerial images you can see a change in colour at the start of the bridge, which seems to support that. The polymer material is an overlay that uses resin rather than cement as a binder, and it's more waterproof and durable than regular concrete.

The article explains that the concrete deck is sealed with asphalt, not concrete (it's the concrete that needs to be sealed of course), and any potholes are also filled with asphalt. They now plan to switch to this polyester polymer cement in its stead.

A simply Google search explains what the material is, thanks, but it's not immediately clear to me what the recyclability of this material is.

[jollyburger]

Originally Posted by chowhou

The article explains that the concrete deck is sealed with asphalt, not concrete (it's the concrete that needs to be sealed of course), and any potholes are also filled with asphalt. They now plan to switch to this polyester polymer cement in its stead.

A simply Google search explains what the material is, thanks, but it's not immediately clear to me what the recyclability of this material is.

I'm guessing they just recycle it like any other concrete waste and make gravel aggregate or something.

[Changing City]

Originally Posted by jollyburger

I think he just meant if there were any problems recycling/reusing the PPC overlay if you need to tear it up in the future.

They used the same concrete on a few projects in the Lower Mainland. Kensington Overpass, Capilano Canyon Bridge, Canada Place Ramps

If it lasts anywhere close to the 30 years that the article suggests, it's not really much of an issue.

[officedweller]

The polymer layer is a 'overlay'.
Not sure how thick that would be.
Some of their other projects mention removal of 25mm of surface, so I doubt the overlay would be thicker than that.

A PPC Overlay is a system designed to protect bridge decks from the elements. Rock, sand, and polyester resin are mixed and catalyzed on site and used with a penetrating high molecular weight methacrylate prime coat to provide an impermeable wearing surface for the substrate bridge deck.

https://www.kingstonconstruction.ca/...ymer-concrete/

[flipper316]

https://www.delta.ca/community-cultu...roject-support

[officedweller]

Originally Posted by flipper316

https://www.delta.ca/community-cultu...roject-support

Thanks.

More info at the Beedie website:
https://78th.beedie.ca/


https://78th.beedie.ca/


https://www.beedie.ca/industrial-rea...to-suit-delta/

[cganuelas1995]

Wonder if there are any plans for the Lions Gate Bridge

[Changing City]

Originally Posted by cganuelas1995

Wonder if there are any plans for the Lions Gate Bridge

There are plans to add a rock berm to protect the south pier from a potential shipping accident. The province recently responded to a suggestion to add anti suicide railings to the bridge by saying it isn't possible as it could cause structural instability to the bridge.

They are looking at the replacement of the Ironworkers Memorial Bridge with a possible transit link to the north shore, but haven't mentioned anything about the Lions Gate.

[Tvisforme]

Originally Posted by Changing City

....The province recently responded to a suggestion to add anti suicide railings to the bridge by saying it isn't possible as it could cause structural instability to the bridge....

Yes, from what I found a few months back while reading up on the 2000 deck replacement, that project was designed and engineered to allow them to safely do the overhaul without having to modify or upgrade the towers. Not a lot of room for addition weight, wind stress and so on.

[VancouverOfTheFuture]

thankfully they wont put barrier on the bridge. would ruin it. im not a fan of the ones on burrard bridge, but theyre not terrible looking at least. but at over $5 million, mehh.

[Metro-One]

Is this an entire interchange being built by private funds?

[flipper316]

https://www.peacearchnews.com/local-...ension-7431487

[Sheba]

Originally Posted by flipper316

https://www.peacearchnews.com/local-...ension-7431487

Surrey council awards design contract for 72 Avenue extension

Surrey city council voted Monday, July 8 to enter an agreement with Aplin & Martin Consultants Ltd. to provide a preliminary design for the 72 Avenue extension from 152 Street to 176 Street, at a cost of $743,787.87 with a spending cap of $820,000.

...

[flipper316]

No plans at all to 4 lane 72nd from 152nd to 144th then . Should've been done decades ago.

[jollyburger]

Originally Posted by flipper316

No plans at all to 4 lane 72nd from 152nd to 144th then . Should've been done decades ago.

Didn't they approve a widening last year?

Council also endorsed a strategy contained in a report entitled Short-Term Transportation Priorities by Neuman concerning plans to widen two sections of 72 Avenue – 144 Street to 152 Street and Fraser Highway to 188 Street – as part of an approved 10-Year Servicing Plan.

https://www.surreynowleader.com/news...street-3001137

[Changing City]

Originally Posted by flipper316

No plans at all to 4 lane 72nd from 152nd to 144th then . Should've been done decades ago.

"A corporate report by Scott Neuman, Surrey’s general manager of engineering, indicates plans are in the works to widen two segments of 72 Avenue – 144 Street to 152 Street and Fraser Highway to 188 Street – as part of a 10-Year Servicing Plan."

https://www.surreynowleader.com/local-news from March

[Changing City]

Interesting evidence of 'induced demand' by building the new road section of 72 Avenue, as well as 64, 88 and Highway 10.

"All told, the total trips for all these sections of road combined were 86,800 vehicles daily in 2022 but in 2050 that’s expected to be 109,400 without the 72 Avenue expansion project and 129,700 including it."

So 37,000 vehicles are expected to use the new road daily, but as a result of the new road being built, in total 20,000 more vehicles would drive on the four parallel routes.

[jollyburger]

Someone mentioned it on the Reddit thread about the new Costco in Surrey but you can use their GIS COSMOS to look up all the planned infrastructure projects on the map

https://cosmos.surrey.ca/external/#

Enable the Ten Year Plan - Road Projects Layer

[chowhou]

Originally Posted by Metro-One

Okay, talking about roads, has there been any movement on the Holdom overpass project??

https://www.burnabynow.com/local-new...s-year-9194772

Tiny bit of movement, the final public input is launching in August (does anyone know why a rail underpass needs 3 rounds of public input?)

[madog222]

Originally Posted by chowhou

https://www.burnabynow.com/local-new...s-year-9194772

Tiny bit of movement, the final public input is launching in August (does anyone know why a rail underpass needs 3 rounds of public input?)

More than a tiny bit of movement, it’s an official announcement that construction will start this year.

https://www.portvancouver.com/news-a...ety-and-trade/

I assume the last round of public engagement will be regarding the public art and/or fine design details of the pedestrian areas.