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


New Pipejacking Record Set On Auckland Watermain Project

Hunua 4 TBM breakthrough

A new pipejacking record has been set on Watercare’s Hunua 4 watermain project in Auckland today.

Amiria the tunnel-boring machine (TBM) broke through at Khyber Pass Rd, setting a record of 1216 metres for the longest single drive in the southern hemisphere by a TBM greater than 3 metres diameter.

Contractor McConnell Dowell broke its own pipejack record – for the Christchurch Ocean Outfall project in 2007 – by 345 metres.

McConnell Dowell project manager Richard Atkin says: “This record achievement demonstrates the skill and experience we have in our tunnelling teams, as well as our commitment to working through challenges and delivering for our client.”

There is just one more tunnelling drive to go in the final section of the watermain project, which will connect the Redoubt Rd and Khyber Pass reservoirs. At 1296m-long, this drive will break the record again.

Amiria was named by a child in Starship Hospital. It is the te reo Māori version of Amelia, which means hardworking.

“She’s certainly lived up to her name,” Atkin says. “In this tunnelling drive she bored through more than a kilometre of basalt rock, and curves with a radius of 750m, which placed pressure on the interjacking stations.”

Watercare project manager David Moore says: “The beauty of this part of the project is that we’ve built this huge piece of infrastructure and very few people even knew it was happening. We tunnelled from right next to the new Westfield Newmarket mall under New Zealand’s busiest road – the southern motorway – to Khyber Pass Rd without disturbing the public.”

The 60-tonne, closed-faced Herrenknecht machine bored at depths up to 30 metres below ground level.

Most of the 31-kilometre watermain has been laid with open trenching, but tunnelling was chosen for most of the final section between Market Rd and Khyber Pass to minimise disruption to a busy urban area.

The project, which caters for Auckland’s growing population and adds resilience to the water network, has been completed in 11 sections and will be finished next year.


  • About 25,000 tonnes (or 8500m3) of material was excavated during this record-breaking drive. That’s about the same as two and a half Eiffel Towers or 300 blue whales.
  • The Herrenknecht AVN 2500AB micro-tunnelling machine is controlled by an operator from a small pilot cabin above ground at the Broadway site.

© Scoop Media

Parliament Headlines | Politics Headlines | Regional Headlines

Gordon Campbell: On Why Todd Muller Needs To Own The Privacy Leak Scandal

Whenever a political scandal breaks, party leaders have two basic options. They can confess to being in boots and all, and try to brazen it out : nothing to see here, move on. This tended to be the John Key approach. Very hard to pull that off in this case, given that it involved violating the privacy of sick New Zealanders for party political gain.
The other option is to claim innocence of this terrible, no good, highly regrettable “error of judgement” and apologise profusely for the sins of others, while absolving your own good self of any responsibility. This has been Todd Muller’s chosen path.... More>>

Govt: Statement From Rt Hon Winston Peters

Deputy Prime Minister and New Zealand First Leader Rt Hon Winston Peters has announced he is taking a short stint of medical leave this week. More>>

Isolation: Government And Air NZ Agree To Manage Incoming Bookings

Bookings for seats on Air New Zealand flights into New Zealand will be managed in the short term to ensure the Government is able to safely place New Zealanders arriving home into a managed isolation or quarantine facility, says Housing Minister Megan ... More>>


Government: New Investment Creates Over 2000 Jobs To Clean Up Waterways

A package of 23 projects across the country will clean up waterways and deliver over 2000 jobs Prime Minister Jacinda Ardern and Environment Minister David Parker announced today. The $162 million dollar package will see 22 water clean-up projects ... More>>


Government: David Clark Resigns As Health Minister

The Prime Minister Jacinda Ardern has accepted David Clark’s resignation as Health Minister. More>>


Election 2020: Green Party Unveils Income Policy

The Green Party is today unveiling its Poverty Action Plan, which includes a Guaranteed Minimum Income to ensure people have enough to live with dignity. The scheme resets income support payments to ensure everyone not in full-time paid work gets at least ... More>>


Conservation: New Protection For Dolphins

Extensive new protections are being put in place as part of an updated plan to look after New Zealand’s native Hector’s and Māui dolphins, announced Minister of Fisheries Stuart Nash and Minister of Conservation Eugenie Sage today. More>>


Auckland: Water Consent Referred To Board Of Inquiry

Environment Minister David Parker has today “called in” Auckland’s application to the Waikato Regional Council to take an extra 200 million litres of water a day from the lower reaches of the Waikato River for Auckland drinking water and other municipal uses... More>>


Covid-19 Patient Info Leak: Hamish Walker - A Personal Statement And An Apology

I have spoken to National Party Leader Todd Muller and informed him that I passed to members of the media, by email, information containing Covid-19 patient details that was given to me by a source. I did this to expose the Government’s shortcomings ... More>>


PM: Labour Will Extend Loan Scheme 'lifeline' For Small Business

Labour has announced its plans to extend the Small Business Loan Cashflow Scheme and spend $162 million on a waterway clean-up package. More>>


Biosecurity: Winston Peters On EU Travel: 'We're Not Going To Compromise Our Country's Health'

Foreign Minister Winston Peters says New Zealanders who head to Europe on holiday should pay for their two weeks' hotel quarantine when they return. More>>

Economy: Infrastructure Investment To Create Jobs, Kick-Start COVID Rebuild

A new package of infrastructure investments will help kick-start the post-COVID rebuild by creating more than 20,000 jobs and unlocking more than $5 billion of projects up and down New Zealand. Finance Minister Grant Robertson and Infrastructure Minister ... More>>


Covid-19: Isolation System To Be Beefed Up After Stress

A range of improvements are already underway to address issues identified in the rapid review of the Managed Isolation and Quarantine system released today, Housing Minister Megan Woods said. The review was commissioned just over a week ago to identify ... More>>


Election 2020: Parties Get Into Gear

ACT has today announced its list for the 2020 General Election. “The calibre and experience of our candidates will impress voters of every persuasion. We have candidates from all walks of life. People who have built their homes, families and businesses ... More>>






InfoPages News Channels