Major Water Main Break in Bowness Area

[getbak]

Calgarians showering over the next 3-5 weeks...

[fotze2]

Designed for a 50 year old life fifty years ago. Do people realize how ######ed we were fifty years ago. Probably based on the current conditions

[Wormius]

Originally Posted by Looch City

Instead of a high speed rail to Edmonton, let's just build a water pipe.

And then use that ROW for a rail in the future!

A water pipe we ride in! Plus ever ride is an inspection.

[Sainters7]

Minimal bathing during Stampede should go over well. Gonna be an Edmonton-style stink cloud over the city by the time Stampede wraps up

[Mathgod]

Originally Posted by shermanator

you can only hear dire messaging for so long before you start to tune it out.

Even if it's completely accurate?

Is it better for us to sing kumbayah while all the taps in the city run dry?

[calf]

Does hosing down the Cowboys tent every night count as outdoor watering?

[puffnstuff]

Someone tell busboobs were going to run oil thru it, the province will pay for it.

[chemgear]

"So far . . ."

Oh great.


https://calgaryherald.com/news/water...nue-in-calgary

Analysis revealed a significant factor leading to the feeder main’s rupture on June 5 was the snapping of pre-stressed steel wires that tightly coil around the inner part of the pipe, according to Francois Bouchart, the city’s director of capital priorities and investment.

He said when these wires snap in multiple places, it can weaken the pipe, possibly leading to a catastrophic failure like the one Calgary’s feeder main experienced on June 5.

So far, the city has used robots to inspect 4.3 kilometres of the pipe to assess its structural integrity. That analysis revealed five sections where “significant wire breakage has occurred and require critical and urgent repair,” Bouchart said.

“Our assessment shows the hot spots cannot safely withstand the amount of pressure we need to run through the feeder main,” he said. “This means if we were to complete current repairs and restore the water feeder main now, it would be at high risk of additional catastrophic breaks. The risk is simply too high.”

[Looch City]

So is this just a Calgary-specific problem orrrr?

[bizaro86]

For a month plus they need to start finding ways to increase the amount of water they can deliver from Bearspaw - whether that's trucking or some temporary pipelines or higher pressure in some places, or all of the above. If we're this close to the line when people thought it was a few day emergency there's no way people will keep consumption low enough for that long.

[AFireInside]

Originally Posted by shermanator

"We just need 2 weeks to flatten the curve"

I don't give a #### about my lawn or garden, am happy to take 2 minute showers, and can piss in the bowl without flushing all day for all I care. But you can only hear dire messaging for so long before you start to tune it out.

Or you can be an adult about it and realize that life isn't always that simple.

The whining going on in this city is impressive.

[Leondros]

Hope to see them restrict business water soon such as bottling plants. Curious how this will impact the stampede. Hoping they thought of contingencies. We have a working water treatment plant. They should be running above ground lines bypassing that main feeder.

[Leondros]

Originally Posted by AFireInside

Or you can be an adult about it and realize that life isn't always that simple.

The whining going on in this city is impressive.

I’m fine with letting my grass and plants die for the greater good.

[Mathgod]

Originally Posted by Leondros

I’m fine with letting my grass and plants die for the greater good.

Use a rain barrel. Won't help with grass, but will give you enough water to use for plants.

[Leondros]

Originally Posted by Mathgod

Use a rain barrel. Won't help with grass, but will give you enough water to use for plants.

Set up some buckets for tomorrows rain

[GGG]

Originally Posted by fotze2

That’s where I don’t get. Metal pipe is easy to inspect. Magnetic flux vertilog stuff is pricy but can be done but there is always an interruption Of service. You probably actually have to probably walk through this pipe. Multiple materials? What a nightmare. Concrete as a material for pipeline is nuts to me, but it’s fresh water so I guess. It’s porous and permeable as hell. Some steel and poly and some Yellowjacket, concrete and random wire wrapped around it for the second most important line in the city. That’s definitely a 2/4 on the risk matrix. Haha.

I think the AER would actually shoot me in the face if we excavated pipe and it looked like that. But maybe that’s Normal fresh water normal.

You understand that water pipes have an acceptable rate of leakage right? Like brand new these things don’t seal per code. It’s a completely different ball game to what we deal with.

This is all code compliant AWWA stuff.

[fotze2]

Originally Posted by GGG

You understand that water pipes have an acceptable rate of leakage right? Like brand new these things don’t seal per code. It’s a completely different ball game to what we deal with.

This is all code compliant AWWA stuff.

Totally a two though buds. Def a 2 on the risk scale. Two all day

Nice to work in a terrible code regime. Mai tais all day.

[fotze2]

Anatoly Dyatlov Rates this one as a two.

[GGG]

Originally Posted by fotze2

Totally a two though buds. Def a 2 on the risk scale. Two all day

It was a joke about how we got here. Go read the post again.

Your comparison between this and the AER is pretty ridiculous though. It’s a completely different consequence.

But currently the outcome has been inconvenience so the risk mitigation strategy employed seems to be working even though I agree a proper risk assessment of an unmitigated failure like this would be catastrophic (I didn’t think I’d have to actually say this) but low likelihood so you inspect and have spare parts for repairs and an emergency response plan to mitigate and redundancy in the system to limit the consequence.

The city appears to be doing a reasonable job and prior to this failure had started to look and monitor for this type of failure.

[fotze2]

Originally Posted by GGG

It was a joke about how we got here. Go read the post again.

Your comparison between this and the AER is pretty ridiculous though. It’s a completely different consequence.

But currently the outcome has been inconvenience so the risk mitigation strategy employed seems to be working even though I agree a proper risk assessment of an unmitigated failure like this would be catastrophic (I didn’t think I’d have to actually say this) but low likelihood so you inspect and have spare parts for repairs and an emergency response plan to mitigate and redundancy in the system to limit the consequence.

The city appears to be doing a reasonable job and prior to this failure had started to look and monitor for this type of failure.

As I disclaimed if you read my posts. I bet their strategy will be change now. Isn’t a statement of impacting 10,000 or more people written in your risk matrices. Or whatever number.