stal̕əw̓asəm (Riverview) Bridge (Pattullo Bridge Replacement) | U/C

[Kokkei Mizu]

Existing bridge from Surrey to New Westminster:

• Video Link

Interesting to read through this thread to see what has been proposed. I really like this bridge aesthetically though... Too bad it probably won't be around for much longer.

[retro_orange]

Originally Posted by Kokkei Mizu

Existing bridge from Surrey to New Westminster:

Interesting to read through this thread to see what has been proposed. I really like this bridge aesthetically though... Too bad it probably won't be around for much longer.

Extended periods of poor maintenance saw to that. It actually has (had) some interesting streamlined moderne/spanish revival motifs from the white stucco service station that was on the new west side, to the simplified concrete piers and concrete approach motifs. I'd love to see some of the concrete piers remain after most of the bridge is demolished.











Attention fellow streetlamp geeks, check out those streamlined lamps it had! I can't find any close up pics of the approach but it looks like it had more substantial lamps on the approach. You can see them in the distance on the far left of the second and third pics.


And these 2 pics are just beautiful (early 50's)




all pics from the New Westminster archives:
http://archives.newwestcity.ca/Results.a...S=0&BG=&FG=&QS=&OEX=ISO-8859-1&OEH=utf-8

[libtard]

Anywhere else in North America this bridge would have been twinned by now

[retro_orange]

Pattullo Bridge may be vulnerable to strong winds
By Jon Azpiri Online News Producer Global News


Time is running out for the 79-year-old Pattullo Bridge.

A study presented to TransLink’s board of directors this month suggests the bridge may not be able to withstand high winds or an earthquake.

A report said the bridge “was not designed to meet current wind and seismic loading standards, and as a result, may be vulnerable in terms of withstanding a seismic or high wind event.”

“The report that we received today definitely highlights the serious condition that the Pattullo Bridge is [in],” New Westminster Mayor Jonathan X. Cote said.

A closer look into the structural integrity of the bridge, which underwent major repairs over the summer, found that it may be necessary to close the bridge in high winds.

An engineering firm is now looking at ways to monitor wind and seismic events to determine if the bridge, which connects New Westminster with Surrey, needs to be shut down. It has also been learned that the bridge needs to be closed permanently by 2022 or 2023.

“If there is even a delay of a year or two in this process, we may run the risk of having to close the existing Pattullo Bridge before a new bridge is ready to be opened.”

In a statement, TransLink said public consultations on the new bridge’s design will start in the coming weeks. It did not address the possibility that New Westminster and Surrey could be without a bridge, possibly for months, if there are any delays in building the new span.

– With files from Ted Chernecki

http://globalnews.ca/news/2971179/pattullo-bridge-may-be-vulnerable-to-strong-winds/

I wouldn't think wind would be a big issue with this bridge as it's not a suspension bridge or a particularly large bridge. (main span anyway)

[Marshal]

Originally Posted by libtard

Anywhere else in North America this bridge would have been twinned by now

Absolutely!

And paved with platinum, and with a continuous concrete divider, and with way better roads on both sides . . . better for miles and miles.

Plus, as a twinned structure, the old one could be tied with cables to the new one, so it couldn't fall down in the winds or earthquakes that are surely coming.

[Marshal]

Originally Posted by retro_orange

http://globalnews.ca/news/2971179/pattullo-bridge-may-be-vulnerable-to-strong-winds/

I wouldn't think wind would be a big issue with this bridge as it's not a suspension bridge or a particularly large bridge. (main span anyway)

It doesn't matter what kind of bridge you're talking about, wind is an applied load to all structures. In fact, suspension bridges have less of an issue with this, simply because they are simple and the critical attachment/anchoring of cables (main and minor) are few and relatively substantial - easier to monitor and maintain. In comparison, the Pattullo is a giant bucket of bolts.

The bridge might look like the wind can just blow through, but every surface accumulates to a considerable face area that wind loads will push upon. And most of that surface is well above where the steel is bolted down to the concrete piers in the river. That means the structure must resist those forces as they try to overturn the whole thing. Virtually every steel component of the truss assembly will have to resist through either tension or compression, or a back and forth of the two. I would guess that the steel is up to the task, and that the week points are the thousands of bolts or rivets that have been doing the job, but are getting weaker and 'looser' with every flex that operates upon them.

[CanSpice]

TransLink is going to be holding community consultations from October 3 to 31, particularly surrounding the bicycle and pedestrian connections at either end of the bridge.

I've seen proposed maps for the connections and for the most part, they're really good. On the New West end, there's better connections for Victoria Hill to get to the Central Valley Greenway, which helps get between downtown New West and Sapperton. There's also good connections to the upcoming Agnes Street Greenway. A lot of the challenge with the connections comes from the steep grade involved, so there are a couple of loops and switchback-style routes that aren't ideal, but they're pretty much the best that could be done.

I was at a New West ACTBiPed committee meeting where TransLink proposed the plans, and they said that before this forthcoming consultation period they'd have already chosen the road connections (on the New West end it was loop vs. traffic signal), but I haven't seen any decisions on that yet.

[SOSS]

What a show: a bridge that can't handle wet snow and another that can't handle wind.

I was wondering if the upgrading would have allowed for the bridge to be converted into a park once a new bridge was built. Could be a very amazing space.

[CanSpice]

Originally Posted by SOSS

What a show: a bridge that can't handle wet snow and another that can't handle wind.

I was wondering if the upgrading would have allowed for the bridge to be converted into a park once a new bridge was built. Could be a very amazing space.

If it's unsafe now why do you think it would magically be safe if it becomes a park?

[Sheba]

New Pattullo Bridge consultations run October 3–31, 2016

There are many ways for you to get involved in this process and make your voice heard including reading the discussion guide and providing feedback online or attending a public open house or small group meeting.

[Metro-One]

I just looked over the document and the front running option looks pretty good.

Luckily it seems they are going with the options I was rooting for.

Also, some of the local connections on the Surrey side that originally looked as if they may have been proposed as at grade crossings are fully grade separated now.

The 4 lane main span is still a little disappointing, but not a deal breaker for me (and a future expansion to 6 lanes without loss of bike lanes / pedestrian space is possible, so in the end I am okay).

Also the details of the SFPR connections are not shown, so that must be in MoT territory... they better use this opportunity to replace one (or even two) of their silly traffic lights with a full interchange.

The super structure itself is pretty sleek looking too IMO.

Imagining New West with this new structure and a 149 and 180 meter tower on its waterfront is pretty exciting.

Why is it that almost all of the most exciting projects recently are outside of Van proper, and most of the disappointing news is coming from Van proper?

Also there appears to be many grade separated bicycle crossings on dedicated pathways on the Surrey side, looks pretty nice.

[dharper]

Where can one look over these documents?

[retro_orange]

Originally Posted by red-paladin

I just realized that we have two Pattullo threads.
As the Rehab project is over, let's archive this one and only add new posts to http://forum.skyscraperpage.com/showthread.php?goto=newpost&t=151877

What happened to this? (i think we need an emoticon for plugged ears)

[officedweller]

Originally Posted by dharper

Where can one look over these documents?

It's a bit convoluted to get to. At Sheba's link, there's the link below.
At that link, click on the Phase 2 "Discussion Guide".

http://www.translink.ca/pattulloreplacement

Originally Posted by Sheba

New Pattullo Bridge consultations run October 3–31, 2016

There are many ways for you to get involved in this process and make your voice heard including reading the discussion guide and providing feedback online or attending a public open house or small group meeting.

[Metro-One]

The only real problem with this design is there are 3 merging pinch points.

Southbound before the bridge the 2 through lanes merge into a single lane.

Also southbound the on ramp has a super short merge on the bridge deck itself.

Northbound near Scott road again the 2 through lanes merge into one.

At least 2 of these pinch points would be removed if the bridge was opening with its full 6 lanes using add and drop lanes.

[Metro-One]

For those too lazy to go through the document here are some of the highlights:

The money shot

P1 by Ian, on Flickr

The bridge deck

p2 by Ian, on Flickr

The south side. I like the general layout and the general level of grade separations.

p3 by Ian, on Flickr

Note the two lanes merging to one on King George just before the Scott Road west bound to north bound on ramp.

p4 by Ian, on Flickr

The North side. Again, I like the general layout (it was the version I was hoping for out of the options given)

p5 by Ian, on Flickr

p6 by Ian, on Flickr

Again, note the two southbound lanes merging into one before the Royal Ave east bound to south bound on ramp. Also not the super short on ramp from Columbia Street. That is maybe the worst aspect of this design.

p7 by Ian, on Flickr

Again, in general, a good looking project and major improvement. All the super structures and general layout is in place, it is just a few poor details that need to be corrected (pretty much this design is screaming to open with t he full 6 lanes).

[CanSpice]

Originally Posted by Metro-One

The North side. Again, I like the general layout (it was the version I was hoping for out of the options given)

p5 by Ian, on Flickr

This one really pleases me. If you look at the intersection of Columbia and McBride (just to the right of that building with the pink roof), both the BC Parkway and the Columbia onramp go underneath McBride. Currently, the BC Parkway crosses McBride at the intersection, and it's been a real safety issue for a while. I'm so glad that this is going to be much safer for pedestrians and cyclists. This proposal really eliminates the most dangerous interaction zones on the New West side of the crossing.

[officedweller]

And remember, that first drawing is just a "concept".
The successful bidder could propose a design with "H" towers like Alex Fraser
(but expandability suggests needle towers in the middle)

[tybuilding]

The design looks fantastic and it was great to see that the design team met with city engineers of both New Westminster and Surrey and with representatives with HUB prior to releasing the designs. The collaboration is evident in the design layout.

My only suggestion is to upgrade the sidewalk along McBride to be a multi-use path which will allow cyclists travelling to Uptown and the top of the hill above Sapperton without any really steep hill climbs. Cyclists can connect to the existing trail and local street network using the existing pedestrian/cyclist overpass connecting Victoria Hill to Queens Park. I ride First Street everyday and it's not great. Downhill I am worried about my brakes failing approaching the stoplight at Royal Avenue or at Agnes, vehicles constantly make illegal turns during rush hour at Royal Avenue and the intersection is offset so it's dangerous. Going in the uphill direction most would have trouble pedaling up the hill. Upgrading the sidewalk on McBride to be a multi-use path makes the most sense and the boulevard is wide enough for at least a 3 m wide MUP.

[twoNeurons]

Nice! And don't be disappointed that it's a 4-lane bridge. Without proper infrastructure through New West, 6-lanes will just move the congestion point.

Personally, I'd box in and partially bury front street and make it a proper bypass.