Progress in pictures

Unearthing some real gems

You never know what you’ll find when you start digging 30-35 metres underground, particularly when the area you’re excavating used to be seabed. Our team and contractor are currently excavating along the route where tunnelling will kick off in April/May. Recently, the team dug up some true gems including a 3-4 million year old cockle – Maoricardium spatiosum. If that’s not impressive enough, a prehistoric whale vertebrae believed to be from a Baleen Whale was also unearthed. So far 82 fossil species have been found and identified. To find out more about these rare finds, listen to Executive Programme Director Shayne Cunis talking with RNZ’s Jesse Mulligan:

Thank you to Auckland Geology Club, Geologist and Marine Ecologist Dr Bruce Hayward, and Molluscan Palaeontologist Dr Alan Beu for their work identifying these rare finds.

A ceremony with a difference

A unique ceremony involving high viz, new spades and dirt recently took place at our Māngere construction site. Mayor Phil Goff and councillors were in attendance for a ceremonial dig known as a sod turning. The dig celebrated our Central Interceptor project entering the underground construction phase. Press play on the video to find out how the project is progressing towards the ultimate goal of tunnelling.

Our new pathway means new adventures

Keith Hay Park's new pathway is looking mighty fine, so why not put your pooch on a leash or jump on your bike and head to Mt Roskill for a bit of exploring. Since we moved into the neighbourhood we’ve been working hard constructing the pathway, putting up site fencing and a host of other things. The park is a key site for our project that will make Auckland’s waterways cleaner. When you visit, remember to take care around the construction site and never let the little ones out of sight.

Meeting and greeting in Keith Hay Park

Mr Whippy was in hot demand at our ‘meet the contractor’ event in Keith Hay Park (late 2019). Construction work began at the Park on 17th January 2020, so this was a good chance for the public to find out more about our project. This huge wastewater tunnel will reduce overflows in central Auckland by up to 80 per cent. Around 100 locals dropped by to chat with the Ghella Abergeldie Joint Venture team, Watercare staff and enjoy an ice-cream on us. Kids were fascinated with the mini version of our tunnel boring machine (TBM) and took away cardboard models to build at home. Thanks to everyone who stopped by!

Central Interceptor teams commemorate St Barbara’s Day

On 4th December 2019, Watercare staff were invited to Mangere construction site to join our contractor, Ghella Abergeldie Joint Venture (GAJV), to recognise the patron saint of tunnellers and miners. The team dedicated statuettes of St Barbara which will now be on view at three project sites.


Say goodbye to the old storage tanks

One minute they’re there, next minute they’re not! Deconstruction of our old storage tanks at Māngere Wastewater Treatment Plant was captured on camera and it makes for spectacular viewing. Check out the video below and keep your eye on the two large black and grey tanks.The tanks have been deconstructed to make way for a new pump station.

Over 75% of the material was able to be reused rather than sent to landfill, which is a fantastic result for our first stage of construction.

Minister for the Environment Hon. David Parker stops by

On 15th November 2019, Hon. David Parker stopped by our Māngere Central Interceptor construction site to hear about the project. The Minister was shown around the construction site by our team and contractor Ghella Abergeldie Joint Venture.

Once fully constructed the Central Interceptor tunnel will reduce the volume of wastewater overflowing into waterways and onto beaches by up to 80 per cent.