Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


darylblake

1096 posts

Uber Geek

Trusted

#209092 12-Mar-2017 12:23
Send private message

Very Heavy rain here, flooding problems starting to get a lot worse in Auckland.

 

I wonder how everyone is faring. Personally I am sick of being stuck in side with kids getting a bit bored.


View this topic in a long page with up to 500 replies per page Create new topic
 1 | 2
Affiliate link
 
 
 

Affiliate link: You will find anything you want at MightyApe.
richms
25129 posts

Uber Geek

Trusted
Subscriber

  #1735217 12-Mar-2017 12:34
Send private message

Im supposed to be carrying stuff out to the shed from the house. That clearly isnt happening.

 

The tarp covering up the hole where the chimney was is holding up well.

 

Might go do some more cleanup in the shed a bit later, but yeah its crazy hard at times.





Richard rich.ms

Behodar
8277 posts

Uber Geek

Trusted
Lifetime subscriber

  #1735219 12-Mar-2017 12:35
Send private message

It bucketed down for about 10 minutes here (Whakatane) just before midday, but now it's sunny. Go figure.


Stu

Stu
Hammered
6473 posts

Uber Geek

Moderator
ID Verified
Trusted
Lifetime subscriber

  #1735343 12-Mar-2017 16:46
Send private message

Sounds like West Auckland is getting hammered today. Flooding all over.

The rain has stopped for now here in our corner of South Auckland, and the Cicadas are out.




It’s not that I’m agoraphobic, it’s just not safe to go out anymore.

 

Keep calm, and carry on posting.

 

Referral Links: Sharesies Backblaze 

 

 




richms
25129 posts

Uber Geek

Trusted
Subscriber

  #1735346 12-Mar-2017 16:48
Send private message

Its been stopped for ages on the shore, driveway is all dried out. Not game to cross the lawn yet tho.





Richard rich.ms

Batman
Mad Scientist
27736 posts

Uber Geek

Trusted
Lifetime subscriber

  #1735381 12-Mar-2017 19:02
Send private message

darylblake:

Very Heavy rain here, flooding problems starting to get a lot worse in Auckland.


I wonder how everyone is faring. Personally I am sick of being stuck in side with kids getting a bit bored.



Has building of buildings superseded development of hidden infrastructure like stormwater drainage? Or is it unrelated?




Involuntary autocorrect in operation on mobile device. Apologies in advance.


gzt

gzt
13551 posts

Uber Geek

Lifetime subscriber

  #1735393 12-Mar-2017 19:56
Send private message

Don't know. All it takes is a restriction/blockage in a critical place at the wrong time and you have a lake. Maintenance is a key factor, but just as easily it's some random object washed down on the day.

Another factor in some areas is tide. Heavy rain + high tide = less fallout for creek water in many places.

tdgeek
26281 posts

Uber Geek

Trusted
Lifetime subscriber

  #1735405 12-Mar-2017 20:16
Send private message

joker97:
darylblake:

 

Very Heavy rain here, flooding problems starting to get a lot worse in Auckland.

 

 

 

I wonder how everyone is faring. Personally I am sick of being stuck in side with kids getting a bit bored.

 



Has building of buildings superseded development of hidden infrastructure like stormwater drainage? Or is it unrelated?

 

You could build infrastructure to cater for rare events, but thats extremely expensive and inefficient. Should the NI weather keep repeating itself, then get the digger out to run bigger outflows.  




PhantomNVD
2619 posts

Uber Geek
Inactive user


  #1735416 12-Mar-2017 20:37
Send private message

We had a massive influx of water to our little creek, turning it into a 30m wide riverbed at least 2.5m higher than it is usually (Tuakau) and flooding my bottom paddock.

 

Road flooding on Tuesday was caused by culverts becoming blocked with someones tree trimmings left too close to their edge of the stream, and the subsequent weeds snarling on branches up to 10cm in diameter criss-crossing the double 60cm culvert entrance. Council digger and truck cleared and removed the debris by Wednesday and the huge rainfall this weekend went straight through without any issues to the road.

 

My own concrete bridge however now has about 6m3 of weed and debris blocking it as I don't get much opportunity to work on it during the weekdays and only managed to clear half of it from Tuesdays inundation... no way on earth to clear it now without a digger/tractor so will have to see what the next 6 weeks has in store while all that weed rots out and I can eventually get to the branches holding it all together :(

 

 

 

*edit spelling


Benoire
2415 posts

Uber Geek

Subscriber

  #1735449 12-Mar-2017 21:55
Send private message

By the looks of it, will know more next week, the event in Auckland may have been at the 1% AEP event level which is commonly known as the 1 in 100 year storm.  In contrast, the standard reticulation system used in the road network is designed to handle the 1 in 5 to 1 in 10 year event.  Surprisingly handled the event well over all, despite the localised issues out West.

 

The street we are off we had a car floating as it is the low point for the area and had significant flooding!


darylblake

1096 posts

Uber Geek

Trusted

  #1735462 12-Mar-2017 22:53
Send private message

The 1 in 100 year storm is what you pay for now days supposedly. The problems are poor execution, and existing infrastructure. 

 

The biggest issue with stormwater, is it tends to always end up in the same spots. And they get really bad. Generally it doesnt matter if the drainage in that area is good, it usually gets so overwhelmed from a heavy dump that it causes minor flooding at the least.


Aredwood
3885 posts

Uber Geek


  #1735475 13-Mar-2017 00:03

The rules for designing stormwater systems make you allow for overland flow paths. So when you have rainfall that exceeds a 1 in 100 year event. You don't get major flooding. The fact that a lake appeared in New Lynn means most likely someone stuffed up. Especially as the council redid that section of road not too long ago.

 

Looks like more work for lawyers because of this.






mattwnz
18631 posts

Uber Geek


  #1735478 13-Mar-2017 00:36
Send private message

They really shouldn't call these things 1 in 100 year events, because it gives peoples false sense of security. It is better IMO to say that there is a 1% change of it occurring in any given year.  You can also as a result get 1:100 year flooding multiple times within a decade. Even in conservative years. The are many towns who's rivers will flood in a 1:100 event, but because people think that the odds are low enough for it not to be in their lifetime, they spend money building protection, such as stop banks. It has been proven to be very costly for some tiwn who had planned to build them, but didn't because they thought the risk was so low.


Benoire
2415 posts

Uber Geek

Subscriber

  #1735504 13-Mar-2017 07:14
Send private message

We don't call them by that old term, we use AEP; annual exceedance probability which uses percentages.  The current SMAF requires calcs for 0.5% AEP which equates to the old 1 in 200 event I believe, and most of new lynn and green bay/Titirangi North is in SMAF areas.  Basically old drainage systems, limited discharge points and developers refusing to deal with their own drainage and discharging to the road.

 

Overland flow paths are a necessary evil in NZ as we do not have the finances nor existing infrastructure to capture more water in to the network.  As MattWNZ points out, the risk is so low that developers refuse to entertain the idea and a lot of people are in floodplains but do not know it, especially those that haven't had the house more than 15 years or so.


MikeB4
17055 posts

Uber Geek

ID Verified
Trusted
Subscriber

  #1735510 13-Mar-2017 07:44
Send private message

Local Councils, Regional Councils and Central Government throughout NZ are failing to respond to climate change.Occurence of these extreme weather events are going to accelerate and can no longer be called 1 in 50 or 1 in 100 year events they will become the norm. The infrastructure needs changing to cope and the time for that work is not in 50 or 20 years but now.

Coil
6614 posts

Uber Geek
Inactive user


  #1735512 13-Mar-2017 07:59
Send private message

Drove to whangarei Saturday morning and came back in the afternoon. We didnt see any floods at all. A few wet paddocks but nothing in the usual places we would always see in a storm(Done the trip 500 times plus) Minor damage to road surfaces and no slips. I was wondering what this monster storm was about, Given i was yet to see a flood around Albany to Devonport and on the trip north. Feels a little over emphasized. 


 1 | 2
View this topic in a long page with up to 500 replies per page Create new topic





News and reviews »

Intel Arc A380 Graphics First Available in China
Posted 15-Jun-2022 17:08


JBL Introduces PartyBox Encore Essential Speaker
Posted 15-Jun-2022 17:05


New TVNZ+ streaming brand launches
Posted 13-Jun-2022 08:35


Chromecast With Google TV Review
Posted 10-Jun-2022 17:10


Xbox Gaming on Your Samsung Smart TV No Console Required
Posted 10-Jun-2022 00:01


Xbox Cloud Gaming Now Available in New Zealand
Posted 10-Jun-2022 00:01


HP Envy Inspire 7900e Review
Posted 9-Jun-2022 20:31


Philips Hue Starter Kit Review
Posted 4-Jun-2022 11:10


Sony Expands Its Wireless Speaker X-series Range
Posted 4-Jun-2022 10:25


Microsoft Updates Surface Laptop Go With 11th Gen Intel CPUs
Posted 2-Jun-2022 07:12


MSI Workstations, Business Laptops Exclusively Available From Ingram Micro New Zealand
Posted 31-May-2022 17:21


Seagate Serves Edge Security Applications With New Skyhawk AI Video-optimised Drive
Posted 31-May-2022 17:20


Dyson Gives Glimpse of Secret Robot Prototype
Posted 31-May-2022 17:15


Hisense Launches in New Zealand, With TVs and Home Appliances
Posted 31-May-2022 17:10


Logitech Introduces the Lift Vertical Ergonomic Mouse
Posted 31-May-2022 17:09









Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.