Valley Line LRT | ?m | ?s | City of Edmonton

David A

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At this point, I don't understand why they are still so coy about dates - they must be getting close enough to completion to put something official out without getting egg on their faces again.

I realize no deadlines was a thing with the city a while back was, but it doesn't work well for anyone in the real world trying to plan things. Not only is it irritating, but it shouts incompetence.
 

awstott

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They have so much egg on their face from past missed dates. It would be nice if we could get some honest answers. I would love for this line to get up and running as I could use it to get to work and not have to drive but I'm not holding my breath for it to be open any time soon.
 

IanO

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At this point, I don't understand why they are still so coy about dates - they must be getting close enough to completion to put something official out without getting egg on their faces again.

I realize no deadlines was a thing with the city a while back was, but it doesn't work well for anyone in the real world trying to plan things. Not only is it irritating, but it shouts incompetence.

 

cliffapotamus

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I was biking by there tonight and i got up close to the piers in question. The wrap wasn't up all the way on the scaffold yet, so I was able to see the piers and a bit of the setup going on inside. On the 3 piers that are getting the scaffold, there appears to be an issue with moisture ingress into the concrete. The concrete, or at least the outer layer, is responding poorly to the recent rains we've had, and there is more dark staining than on the 'normal' piers, as well as a noticeable superficial cracking/crazing pattern. This pattern looks to be superficial, the kind of random lines one sees sometimes in concrete patches done with lightweight cement or in stucco scratchcoats. the cracks are all very small, revealed mostly by the excess moisture in the, as opposed to the dry areas around them. it's like a mess of wet cracks in dry cement.
I'm not super knowledgeable on the mechanics of concrete, especially stuff that's intended to be weather-exposed like this, but it looks to me like whatever finish layer got applied to the three piers getting scaffolded was too porous or otherwise not prepared properly, and is now aging rapidly due to moisture exposure. Like I said, it looks like the same cracking you see in porous/lightweight cement fills and patches in sidewalks and the like; and if I understand correctly, these piers were cast and then surfaced with a finish 'layer' or 'coat' of cement to give a consistent look.
This is all just my theory based on what I saw tonight. I don't know enough about concrete finishing to know for certain. as for how this affects opening; IDK. The issue can't be structural, that would have been picked up by now, especially given the viaduct segments the piers support have already been replaced, and I'm sure things were re-checked when that happened. There was a small electrical box and some wire hanging on one pier; I didn't think much of it and it wasn't labelled. any guesses?
Assuming the cast-in-place cores of the piers are structurally sound, and it's just a surfacing issue that can be resolved entirely from beneath the tracks, I'm betting the line opening shouldn't be delayed by this issue. That is assuming that there's nothing else wrong here, of course. hoping ofr hte best!
Anyways, here's a couple pictures I got using my bike light as a flash. the first two are of the scaffolded piers, the last is a photo of a normal pier to compare, given the bad camerawork. This stuff is a lot more visible in person.
unnamed-1.jpgunnamed.jpgunnamed.jpg
 

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Gronk!

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I'm guessing three things:
1) A Sept 4 go-live of the LRT line may not be likely unless TransEd invests some serious manpower and overtime on rectifying this issue
2) There will be second thoughts about above-grade LRT (favored by Vinesh Pratap) vs ground-level LRT
3) Above-grade LRT is another master stroke of competency by TransEd
 

Yossarian

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I'm guessing three things:
1) A Sept 4 go-live of the LRT line may not be likely unless TransEd invests some serious manpower and overtime on rectifying this issue
2) There will be second thoughts about above-grade LRT (favored by Vinesh Pratap) vs ground-level LRT
3) Above-grade LRT is another master stroke of competency by TransEd
For #1, manpower will likely not be the limiting factor, rather the cure time for whatever repairs are needed, assuming they are structural. and not aesthetic issues.

My wife and I did 3/4 days of folk fest as park and ride, and each day on the bus in we saw the train parked at Muttart station, mocking us. If the Valley Line was open it would have been faster and cheaper for us to use that to get to and from the festival.
 

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