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

 


$8.6M Kotuku detention dam project to begin in earnest

Date: 22 August, 2014

$8.6M Kotuku detention dam project to begin in earnest

Construction on a massive stormwater detention dam designed to better protect Whangarei’s central business district from damaging floods will be underway in earnest within weeks.

Northland Regional Council member Craig Brown who chairs the Urban Whangarei Rivers Liaison Committee, says the council had recently purchased the final property it needed and roughly $2.7M of work to build the dam itself is now scheduled to begin in October.

Councillor Brown says of the estimated $8.6M (GST excl) final cost of the Kotuku detention dam project, about $5 million would have been spent securing the 20 properties needed, with another several hundred thousand dollars to relocate power and other utilities in recent months. The remainder would pay for the dam itself and some associated final landscaping.

He says the contract to build the dam itself – to sit at the ends of Raumanga Valley Road in Raumanga and Kotuku Street, Maunu – has gone to MAP Projects Ltd, which aims to have it finished in autumn next year.

Councillor Brown says MAP is an experienced Rotorua-based civil contracting business that has successfully completed a number of challenging civil construction projects in recent years, including several hydro civil works and dam works and the tender had been awarded after a robust and keenly-contested process.

“This is one of the largest engineering projects the regional council has undertaken and when finished, the 18-metre high dam will hold up to 1.27 million cubic metres of floodwater during heavy rain, about two-thirds the capacity of the existing Whau Valley dam.”

However, Cr Brown says unlike the Whau Valley dam, which provides drinking water to much of urban Whangarei, the Kotuku dam is designed to trap vast amounts of water and then slowly release it over several days.

He says much of the damage caused by floods depends not only on how deep they are, but importantly, also how fast they are travelling.

“In layman’s terms, the Kotuku dam will help address both of these, slowing floodwaters and also cutting flood depths in the CBD by up to half a metre.”

Councillor Brown says the dam will be paid for via an existing targeted rate on more than 17,000 properties in the CBD and contributing catchment areas, but given it had the potential to reduce flood-related damage worth millions of dollars from a single flood, it would be money well-spent.

He says the targeted rate was established under the council’s last Long Term Plan (LTP) in 2012 when the dam’s cost was estimated at about $6.9M (excluding GST).

That figure had been firmed up to its current level based on completion of a more detailed dam design and peer review outcomes, resource consent requirements and given the costs of relocating utilities over the past few months and buying the land needed were now known.

Councillor Brown says the council expects to consult the public next year about changing its Whangarei Urban Rivers Management Rate to accommodate the revised cost as part of work on its new Long Term Plan for 2015-2025.

However, in the meantime, council will continue to work with the Urban Whangarei Rivers Liaison Committee, whose members include representatives from the Whangarei District Council, business and ratepayer communities and tangata whenua.

He says a site blessing is to be organised involving iwi, regional and district councillors will be held soon and among the first steps will be the demolition of five of eight houses that will eventually need to make way the dam, as well as the clearance of some bush. (The houses can’t be relocated due to the way they are built so the first five will be demolished and the remaining three used to accommodate workers during the build and be demolished towards the end of it.)

“Demolition of those homes is due to begin at the start of next month, with the general contractor on site about mid-month and construction beginning in October.”

Councillor Brown says information on the project will be posted on the regional council’s website as the project progresses but says existing presentations and reports are already available via: www.nrc.govt.nz/kotukudam


ENDS

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

Gordon Campbell: On The Wage Hike For MPs (and Paul Robeson)

Hard to tell what is more infuriating. Is it the 5.3% increase on the already bloated salaries of MPs, or their pantomime of outrage at being gifted with such a wonderful back-dated bonanza?

As usual, Prime Minister John Key has busily tried to distance himself from the political fallout, even though he happens to be the main beneficiary of the Remuneration Authority’s generosity. Finance Minister Bill English says with a straight face that it would actually be very hard to give the money back...

Even if it were true, it would actually be very easy for English and any other guilty colleagues, to give the extra money away. There are any number of food banks or homeless shelters who would be able to put the money to good use. More>>

 

PARLIAMENT TODAY:

No Designers Or Visual Artists: Flag Panel Members Announced

The Government has appointed 12 New Zealanders as members of the Flag Consideration Panel which will engage with the public about a possible new New Zealand flag, Deputy Prime Minister Bill English says. More>>

ALSO:

Labour MP Stands Down From Portfolio: Comment From Carmel Sepuloni

The first I knew of my mother’s charges was when I was called by a reporter yesterday. I spoke to Andrew and we agreed there is a conflict of interest at the present time which means I will temporarily stand aside from the Social Development portfolio. It’s the right thing to do… . More>>

ALSO:

Gordon Campbell: On Whether NZ Troops Are The Least Of Islamic State’s Problems

Given that it has been politically packaged and sold as a training mission, the Iraq deployment announced yesterday by Prime Minister John Key seemed to be mysteriously short of actual trainers... The other wing of the argument is whether a troop deployment is (a) the only effective way and (b) the appropriate time to combat Islamic State. More>>

ALSO:

143 Troops, Possible SAS Deployment, Legalities Unsorted: PM’s Statement On ISIL

Mr Speaker, today I am announcing to the House the Government’s decisions about our contribution to the fight against the Islamic State of Iraq and the Levant, or ISIL... More>>

ALSO:

Liu Saga: PM's Dinner With Controversial Donor

John Key must front up to New Zealand and say what he discussed with Donghua Liu when the disgraced businessman paid $25,000 for the Prime Minister to come to dinner at his Remuera home, the Green Party said today. More>>

ALSO:

Roads: National MP 'Concerned' At Overseas Driver Crashes

Waitaki MP and Parliamentary Private Secretary for Tourism Jacqui Dean said she was concerned at the number of fatal crashes involving overseas licence holders and she really felt that the time had come for more to be done. More>>

ALSO:

Parliament Today: Parole Bill Passes

A bill reducing parole hearings deemed to be unnecessary has passed. The third reading of the Parole Amendment Bill was completed by 104 to 16 with the Greens and Maori Party opposed. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news