Major Water Main Break in Bowness Area

[Paulie Walnuts]

Wouldn’t it be easier to close the car wash and reimburse them for the day being closed ?

I saw people watering their lawn.

[fotze2]

Originally Posted by Bill Bumface

You're telling me. Staring at the GPA requirements for Civil was always the only reprieve after a final exam felt like it went poorly in first year.

Electrical should’t have even been allowed to be called engineering.should have been called weird ass imaginary math. Root negative 1. Could never wrap my peanut around that one.

[GGG]

Originally Posted by rohara66

I'm not pitchforking.



But did they not know about the 5 days required to bring the fixed pipe online when they gave the initial estimate of 5-7 days?

Where did you get the 5-7 days to repair the line from? I assume the following cbc article

https://www.cbc.ca/amp/1.7229324

“ "If everything goes well, we're looking at at least another five to seven days before the situation is resolved," Chris Huston, the city's manager of drinking water distribution, said Saturday morning.”

“ "We are making good progress; however, it's important to know this is a complex process and I want Calgarians to be prepared and understand that it will take some time to complete this repair," said Nancy Mackay, the city's director of water services.

"There are still many unknowns, and we want to ensure we take the time to do this right."

The city press release that day states the following

https://newsroom.calgary.ca/update-5...e-water-usage/

It did not include the Chris Huston comments.

So if you followed the cities releases they never gave a timeline. And if you go by the one CBC quote it’s double hedged. If everything goes well it will be at least 5-7 days. Thats 7-10 days in project speak.

But the city also did not give an official timeline until today and it’s still just saying a better update mid next week.

Should the city be better at not giving accidental timelines? Yes, should the media be better at differentiating between speculative comments and the news release time lines? Yes. Should readers read the official city news releases when looking for information on timing? Yes

[EVERLAST]

Can we make.roads a priority after this?? Before potholes.become sinkholes?

[btimbit]

Originally Posted by EVERLAST

Can we make.roads a priority after this?? Before potholes.become sinkholes?

Roads are always priority, but it's June, they've only been able to start working on them a few weeks ago

[rohara66]

Originally Posted by EVERLAST

Can we make.roads a priority after this?? Before potholes.become sinkholes?

Potholes will be repaired in 5-7 days.

I kid!!! Don’t pitchfork me.

[Ducay]

Pavin' Dave Bron-concrete would have had that line back up and running in a day flat

[Ashartus]

Dammit my rain barrel is almost empty and I have thirsty tomato plants in my greenhouse. Hopefully we either get water back on or rain soon.

[GGG]

Originally Posted by Ashartus

Dammit my rain barrel is almost empty and I have thirsty tomato plants in my greenhouse. Hopefully we either get water back on or rain soon.

Put a tray in your sink or shower to collect grey water and use it to water plants.

[Locke]

Originally Posted by Ashartus

Dammit my rain barrel is almost empty and I have thirsty tomato plants in my greenhouse. Hopefully we either get water back on or rain soon.

[GGG]

What remains unanswered still is the cause of the water main's rupture.

"There was no indication that the section of pipe was being stressed," said Bouchart, noting the pipe is approximately 49 years into its 100-year lifespan.


"The feeder main operated well within its pressure limits."

He also said the city installed acoustic monitoring equipment in early 2024, and that technology provided no indication the water main was experiencing any issues.

Bouchart said it appears metal wires within the pipe suddenly "snapped," affecting its structural integrity, and resulting in water gushing out "as one big event."

https://www.cbc.ca/amp/1.7232611

Suddenly snapped is wierd for a cabal that is under essentially a constant load and pressure.

[Locke]

Originally Posted by GGG

https://www.cbc.ca/amp/1.7232611

Suddenly snapped is wierd for a cabal that is under essentially a constant load and pressure.

Yeah...I've been wondering about this too. For starters...its not like it was in a particularly stressed area but it just...kind of gave way.

Was it a construction deficiency? Because...hey...that happens.

One of my clients operates a Pipeline Pig to check for faults or weaknesses. Is that a thing for water mains? I dont know.

[calgarygeologist]

Originally Posted by GGG

https://www.cbc.ca/amp/1.7232611

Suddenly snapped is wierd for a cabal that is under essentially a constant load and pressure.

Is this a post tension concrete construction situation? I remember reading about post tension issues with buildings in Calgary and how some insurance companies wouldn't provide insurance and realtors were telling people to stay away from purchasing in buildings with that method. In those situations, if moisture got into the concrete it could lead to deterioration and snapping of cables.

[DoubleF]

Originally Posted by Locke

Yeah...I've been wondering about this too. For starters...its not like it was in a particularly stressed area but it just...kind of gave way.

Was it a construction deficiency? Because...hey...that happens.

One of my clients operates a Pipeline Pig to check for faults or weaknesses. Is that a thing for water mains? I dont know.

There's a calgary company that builds baseball sized pipeline inspection tools for o&g and water industries.

Ingu Solutions.

[BlackArcher101]

Originally Posted by calgarygeologist

Is this a post tension concrete construction situation? I remember reading about post tension issues with buildings in Calgary and how some insurance companies wouldn't provide insurance and realtors were telling people to stay away from purchasing in buildings with that method. In those situations, if moisture got into the concrete it could lead to deterioration and snapping of cables.

It's likely a PCCP pipe with a PVC or HDPE internal coating. The wires surround the concrete inner core adding the prestress then covered with a mortar outer layer. Tons of failure paths that can lead to damaging the wires and resulting in breakage. If you look up PCCP failure in Google, you see some very familiar photos.

The acoustic monitoring they mention is likely from Pure Technologies. Have worked with them in the past, very cool stuff they do. https://www.xylem.com/en-ca/products...ring-platform/

This is probably the robot being used to look at the other 1.6km of pipe near the breakage. With it wide open, great time to get it in there. https://www.xylem.com/en-ca/products...ent-platform2/

[Erick Estrada]

Originally Posted by Paulie Walnuts

Wouldn’t it be easier to close the car wash and reimburse them for the day being closed ?

I saw people watering their lawn.

Pretty well all modern automatic car washes utilize water recycling systems.

[Bigtime]

May be tacking another 24 hours onto the fully fixed estimate now...

https://twitter.com/user/status/1801264300402864638

https://www.cbc.ca/news/canada/calga...ndek-1.7233732

Also noting that our consumption keeps creeping back up.

https://twitter.com/user/status/1801266818012860806

[OutOfTheCube]

Kind of makes sense though, there's some things people will only hold out so long for. We didn't do laundry for a while but I'm not gonna be putting underwear back on that I worked out in, for example -- had to do a couple loads this week.

[Erick Estrada]

I'm wearing my dirty underwear skid mark out. Sometimes you have to take one for the team.

[V]

Originally Posted by GGG

https://www.cbc.ca/amp/1.7232611

Suddenly snapped is wierd for a cabal that is under essentially a constant load and pressure.

https://waterfm.com/prestressed-pipe...ient-approach/