Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search

 


Flood defence house-tanking pilot successful

Monday, 14 July 2014

Flood defence house-tanking pilot successful

Christchurch City Council has successfully concluded the pilot test of the 'house-tanking' flood defence measure outlined in the Mayoral Flood Taskforce report.

The pilot exercise started on Thursday 10 July 2014 using a suitable red-zone house. The 'house-tanking' process involved the application of a waterproof membrane to the exterior of the house and then placing bunding around the house to contain the water. This bunded area was then flooded to a level of 1100 millimetres on Friday afternoon and remained in a flooded state until this afternoon, Monday 14 July 2014.

John Mackie, Unit Manager Transport and Greenspace says, "It is really heartening to see that this technology has been successful. A very small amount of water made its way under the house, which was pumped away by a small submersible pump beneath the floor, but no water came inside or anywhere near breaching the floor levels.

"In the flood-events of March and April this year, some houses experienced these type of flood conditions for up to 12 hours, so it has been a valuable exercise for us to run this pilot over a 72 hour period. That gives us great confidence in this technology in terms of it being a viable flood-defence tool.

"House-tanking is one of the recommendations from the Mayoral Flood Taskforce report that needed to be tested. We now know that this is a flood-defence measure that works.

"The next step for us now is to produce a full technical report of the findings from this pilot test and include it in the final Mayoral Flood Taskforce report which will go to Council early next month. The Council will then decide on which recommendations from the Taskforce that will protect those residents in the areas identified as vulnerable to flooding," Mr Mackie says.

Christchurch City Mayor, Lianne Dalziel established the Mayoral Flood Taskforce as a result of the heavy rainfall events in March and April of this year, which caused flooding across the city. The Taskforce was asked to come up with short-term flood mitigation recommendations for the most flood vulnerable areas of Christchurch.


- Ends -

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

 

Gordon Campbell: On Bank Scandals (And Air Crashes)

Last month, the Australian Securities and Investment Commission (ASIC) filed proceedings against Westpac over activities that have some distinct echoes of the Libor scandal. More>>

Budget: Health Funding Must Keep Up With Need

NZNO: “The nursing team has been doing more with less for years. It’s getting to the point that we’re really worried about our colleagues, our patients, our jobs and the level of health care available for people in our country." More>>

ALSO:

Emissions Inventory: Time For The Government To Do The Right Thing

It’s time for the National Government to step up and do the right thing to reduce climate pollution as data shows New Zealand’s greenhouse gas emissions are higher than ever, the Green Party said today. More>>

ALSO:

Budget 2016: More Partnership Schools To Open

Seven new schools will join the eight Partnership Schools already open, along with further new schools opening in 2017. “The growth of this policy is a reflection of the high level of interest from educators and community leaders,” Mr Seymour says. More>>

ALSO:

No Correspondence With English: Did Brownlee Make Up Sale Of Navy Ships ‘On The Hoof?’

Having revealed that several Royal New Zealand Navy vessels have not left port in years, New Zealand First is now asking the Minister of Defence to prove he did not come up with the idea of selling HMNZS Taupo and Pukaki until the media asked him. More>>

Housing Plans: Labour- Abolish Auckland Urban Boundary
The Government should rule out any possibility of an urban growth boundary in Auckland Council’s Unitary Plan if it is serious about fixing the housing crisis. More>>
Greens - State House Solution
The Homes Not Cars policy allows Housing New Zealand to retain its dividend and, in addition, would refund its tax, to spend on the emergency building of around 450 new state houses. More>>

ALSO:

Houses And Taxes: Post-Cabinet, Pre-Budget Press Conference

The Prime Minister said that the pre-budget announcements showed that his Government is “investing in a growing economy”. He re-affirmed the National Government’s commitment to lowering personal tax rates but that any such change must fit with the fiscal reality of the time. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news