Treatment process pipe repairs see increase in truck movements
It never rains but it pours – another tricky pipe repair job for our team!
Running between the wastewater treatment plant at Moa Point and the Southern landfill are two pipes that carry a treatment process byproduct, generally known as sludge.
Only one pipe operates at a time, to allow for maintenance, but over the weekend, both pipes suffered damage that meant we couldn’t keep using them.
They’re under very high pressure when they’re operating, so it’s possible that the live pipe disrupted the other one when it failed.
The pipes were expected to last for a good 80 years or more, so we think that some kind of installation or material defect has caused them to stop working.
En route from the treatment plant to the landfill, the pipes pass through a tunnel beneath Mt Albert, and this is where the repair will be carried out.
While we carry out the repairs, trucks will be used to convey sludge from the plant to the landfill. About a million litres of sludge a day is generated at the plant, and trucks may need to operate around the clock from time to time.
A similar repair, also due to a defect in the concrete in which the pipes are embedded, was carried out in 2013 and took about five weeks to complete.
We’ll provide more information on the repair timeline and truck schedule as we learn more.
Show us your projects
Whether it's craft, haberdashery, woodwork or upcycling, we'd love to see what you've been working on lately.
You may even spark someone else's creativity...
Tell us about your current project or show us a picture in the comments below...
🕵️♂️ Detective Mode ON! Can You Crack These Riddles? 🔍
Two people are born at the same moment, but they don't have the same birthday, how?
Do you think you know the answer? Simply 'Like' this post if you know the answer and the big reveal will be posted in the comments at 2pm on the day!
Want to stop seeing these in your newsfeed?
Head here and hover on the Following button on the top right of the page (and it will show Unfollow) and then click it. If it is giving you the option to Follow, then you've successfully unfollowed the Riddles page.
Poll: Is your nearest emergency department up to scratch?
Concerns have been raised about Nelson Hospital with complaints of lack of staffing and excessive wait times. Do you have confidence in your local emergency department?
-
36.2% Yes, it serves us well
-
63% No, I have concerns
-
0.8% Other - I'll share below
Loading…
