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

[Fetch]

If thermal expansion is really the issue at hand here (apparently from the steel) then are all of the piers not at risk here? All concrete with that steel inside of it? Does this compromise the Tawatina Bridge too? I'm not an engineer but that doesn't seem like a fix is possible without significant repairs or replacement of the piers.

Or is it more of an issue with doing pours in the winter and having inadequate prep/hoarding and heating?

 

[David A]

If thermal expansion is really the issue at hand here (apparently from the steel) then are all of the piers not at risk here? All concrete with that steel inside of it? Does this compromise the Tawatina Bridge too? I'm not an engineer but that doesn't seem like a fix is possible without significant repairs or replacement of the piers.

Or is it more of an issue with doing pours in the winter and having inadequate prep/hoarding and heating?

We are, almost famously and somewhat stereotypically a winter city. Unless someone just got off the plane from a tropical country surely they must have understood that. It seems to me a fairly high level of ignorance or carelessness would have been involved here by someone.

 

[CplKlinger]

If thermal expansion is really the issue at hand here (apparently from the steel) then are all of the piers not at risk here?

More cracks discovered in concrete piers along Valley Line LRT southeast extension - Edmonton | Globalnews.ca

In an update posted to YouTube Thursday, TransEd CEO Ronald Joncas said further analysis of the piers that support the elevated guideway has uncovered cracks in 21 piers.

globalnews.ca

 

[Glenco]

In the mid sixties Bechtel designed the first Suncor oil sands plant their Houston office. They didn’t think to heat trace the critical process pipes and the whole thing froze up that winter.

 

[The_Cat]

Looks like more piers with problems between Wagner Road and the CPR Tracks.

 

[The_Cat]

I wonder how many of the cracked piers are between Davies Station and the 83 Street approach.

 

[IanO]

How about the Cloverdale ones?

 

[cpnfantstk]

Isn't TranEd a consortium of some highly respected companies in the industry? According to Wikipedia, the Davies section is the only track that is elevated, How long is this section within the 13.1 km track?
Read that Marigold is working on Valley West. I hope they're reliable because this whole thing is embarassment. The residents deserve a whole lot better than this.

 

[The_Cat]

I think the trouble arises when somebody says that the LRT needs to be "Cutting Edge". "Other mass transit systems use CBTC technology, so why not Edmonton?" The City was in a tug-of-war with the province to get LRT funding, and the Federal funding came from the P3 fund. Even if the cost of the fix-up is on the vendor, how long before the city steps in?

 

[Edmcowboy11]

Well I think Marigold is paying very close attention for many reasons. All they have to do is stay on track and deliver on time an they will be the most successful of all the groups.

 

[EdwardEdm]

The good news of sorts is that the 2 LRV's stranded north of the elevated section have started running again, doing whatever, after being parked for the past 4+ days on the bridge.

 

[MCXavierL]

Bonnie Doon Station looking North this evening.

 

[BrettB]

I hope I'm wrong, but those bike racks seem like a magnet for thieves. I wish covered/secured parking were part of this project

 

[itom987]

LRT construction by West Edmonton Mall
West LRT line Edmonton August 2022 by Jason Woodhead, on Flickr

 

[EdwardEdm]

I hope I'm wrong, but those bike racks seem like a magnet for thieves. I wish covered/secured parking were part of this project

Given that ETS has removed the bike lockers at Century Park in the past few weeks, I don't know how successful those have been.