CRL under Auckland city

Work ongoing in CRL tunnels

As tunnel boring machine (TBM) Dame Whina Cooper makes its way  beneath Auckland towards Te Wai Horotiu Station (Aotea), work is well underway preparing the entrance to Beresford Square entrance to Karanga a Hape (Karanghape) Station. The work at the new station site involves the construction of utility rooms, access ways, and a derailment wall Read More


MPs visit CRL project

The 3.45 km twin-tunnel rail link is being built to better connect Auckland’s rail network. It is expected to at least double the city’s rail capacity. The most recent milestone for the CRL project is the tunnel boring machine (TBM) Dame Whina Cooper breaking through at Karanga a Hape Station on 15 July, slightly ahead Read More

City Rail Link

City Rail Link’s TBM reaches Mt Eden

The TBM, named Dame Whina Cooper, has travelled 900 m from the start point at Maungawhau Station (Mt Eden). The CRL is New Zealand’s largest infrastructure project, comprising  a 3.45 km twin-tunnel project. The TBM was boring 42 m below the city centre in Auckland. The Dame Whina Cooper TBM has taken three months to Read More


City Rail Link’s TBM is full steam ahead under Auckland

The TBM has been powering away beneath NZ’s surface, excavating the second 3.45 km underground rail tunnel and removing dirt and rocks to the surface. However, the TBM is doing more than excavation. The machine has also been busy installing precast concrete panels to line the tunnel walls. Once it reaches its destination, which is Read More

NZ’s City Rail Link produces innovative 3D model

The use of the 3D model will enable the work being diligently executed by the CRL team to be seen with more ease. The model itself is a cross-section and shows a view of the station as if it were cut in half, looking outward toward Victoria from Mayoral Drive. It is hard to show Read More


Auckland’s biggest water project finishes construction

With the connection of Watercare’s Hūnua 4 pipe to the Khyber Pass reservoir marking the colossal pipeline’s completion, it will now undergo a series of tests before the final stage is put into service. Work on the 31 km watermain began in 2008 and has been carried out in 11 stages. As each stage has Read More

Tunnel boring machine

NZ’s City Rail Link makes strides with TBM

The star of the CRL project, the TBM is named after Dame Whina Cooper and has facilitated incredible progress for the project. Its most recent breakthrough comes as the TBM broke through into the mined tunnel cavern at the Link Alliance Maungawhau (Mt Eden) Station construction site. This occurred only 85 m after the TBM Read More

Interflow impresses with Primus Line in NZ

A large-scale job for the team, with plans for the project ongoing since 2019, the works completed by Interflow is an impressive notch in their belt of success. Partnering with local contractors and council, the project consisted of the rehabilitation of a previously abandoned pressured sewer line which hadn’t been utilised since 2007. The highlight Read More

Central Interceptor micro-tunnel boring machine prepares for 722 m drive back

Two weeks before Christmas last year, the company celebrated its micro-tunnel boring machine, Domenica, broke through to the Haycock Ave shaft in Mt Roskill. To complete this first drive she travelled almost a kilometre since her launch from May Road in June. Watercare said this was a great milestone for the project, the first of Read More

Award Ceremony generic image

New Zealand’s leading water event Calls for Abstracts

The event features the the largest water and wastewater exhibition in the country and a variety of industry-leading presentations through its technical program. This year’s technical program will include a dedicated trenchless technology stream, supported by the Australasian Society for Trenchless Technology (ASTT). In addition to the ASTT stream, other topics include: Drinking water Wastewater Procurement Read More

March Construction

Little margin for error

March Construction has successfully completed tunnelling under a live rail corridor to replace a section of wastewater main under Hayton road.  This was reportedly the first installation of the perfect lined jacking pipe in New Zealand The new pipeline had a diameter of 1000 m, replacing the original pipe originally constructed in the 1950s and Read More


Watercare appoints new director

The council identified a need for additional resources in stakeholder engagement and customer communications on the Watercare board.  This appointment has been approved by a panel represented by the mayor and independent Maori statutory board chair.  Councillor Chris Darby represented the committee on the interview panel and welcomed the new appointment. “The interview panel was Read More

march cato

25 years tunnelling Auckland City

Co-founders Richard March and Adam Cato first started working together at the Auckland branch of March Construction. When the opportunity presented itself, Richard and Adam joined forces to buy the Auckland operations and establish their own company, March Cato Ltd, which began trading in 1997.  Specialising in trenchless and deep open cut pipeline construction for Read More


An industry old hand

John Hynds started his first concrete manufacturing business at the back of his first home in 1973, making crib blocks for retaining walls. Together with his wife Leonie, the pair progressively built up their manufacturing capabilities, going on to open their first distribution branch in 1994.  Today, Hynds is a 33 branch network, serving both Read More

lower hutt, wellington

Microtunnelling contract awarded for pipeline duplication

The Barber Grove to Seaview Wastewater Treatment Plant Pipe Duplication is located in the Lower Hutt region of New Zealand.  Local utility Wellington Water is working on behalf of Hutt City Council and Upper Hutt City Council jointly, duplicating the existing water main by installing a new 1200 m long, 1000 mm diameter rising main Read More

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Irrigation Main Replacements – Supply & Construct – FY21/22 & FY22/23 Issued by: Lower Murray Water Closing Date: 13 January 2022 Location: Victoria Description: Lower Murray Water is looking for a suitably qualified contractor to complete Irrigation Mains Replacement works in the Mildura and Merbein area. The contract will be for the supply and construction Read More

Central Interceptor celebrates breakthrough

Micro-tunnel boring machine (mTBM) ‘Domenica’ has finished its first drive, successfully breaking through at the Haycock Ave shaft on 10 December.    Domenica was placed in a 2.1 m diameter pipe for the link sewer that will run between Miranda Reserve in Avondale to the main Central Interceptor wastewater tunnel, connecting up at May Rd Read More

Central Interceptor’s 18 gantries slotted

Central Interceptor’s 18 gantries slotted

The TBM was launched in July, with gantries being lowered into the shaft as tunnelling progressed since the launch. The Central Interceptor TBM, known as Hiwa-i-te-rangi, is now 190 m in length. Each gantry will store the equipment required to run the TBM which will build New Zealand’s longest bored wastewater tunnel. The gantries will Read More

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Domestic wastewater pipeline renewals 2021/22  Issued by: Gisborne District Council Closing Date: 10 December 2021 Location: New Zealand Description: The request for proposal is an invitation to suitably qualified suppliers to submit a proposal for the renewal of existing domestic wastewater pipeline (trenchless). Horizontal directional drilling to provide services to Horsham Nature Play Park Issued Read More

Watercare's central interceptor

Watercare reroutes sewer link on Central Interceptor

Watercare has rerouted a link sewer to avoid community disruption and reduce emissions on the Central Interceptor project.  The team at Watercare has found a way to reroute the first of two link sewers connecting to the 14.7 km wastewater tunnel, removing the need for a 30 m deep construction shaft at Whitney Street.  Central Read More

KOR demos machines across regional Victoria

KOR demos machines across regional Victoria

KOR toured parts of East Gippsland last week, demonstrating the company’s Cappellotto and Schwarze units, plus cleaning accessories from KEG Kanalreinigungstechnik. A team from the company’s Mulgrave base, in Melbourne’s southeast, visited a number of towns as part of the trip, including Morwell, Sale, Bairnsdale and Lakes Entrance. KOR has an extensive range of vacuum and hydro Read More

CRL under Auckland city

Works ramp up on CRL

The New Zealand Government has invested $1.5 billion in Auckland’s rail network, and according to KiwiRail’s capital projects and asset development manager David Gordon, the Christmas break will be an ideal time to deliver key developments. “The Christmas shutdown allows us to get a huge amount of work done over a short period of time,” Read More

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Supply and installation of UV cured in-place pipe relining Issued by: City of Gosnells Closing Date: 24 November 2021 Location: Western Australia Description: The Contractor will be required to undertake relining works, which include pipe cleaning and root cutting where required, using the cured in-place pipe (CIPP) relining method with an ultraviolet (UV) cure system, Read More

Snells Beach, Warkworth region

Warkworth works progress despite lockdown

Contractors are currently completing works on a major $26 million wastewater pump station in Lucy Moore Memorial Park.  Project manager Dirk du Plessis is asking the public to be aware of increased traffic as contractor McConnell Dowell ramps up construction activity.  “We are very pleased to see that works are well underway,” said du Plessis. Read More

watercare wastewater scheme upgrade

Watercare upgrades wastewater scheme in north Auckland

According to Watercare, Warkworth is expected to grow significantly in population, with up to 20,000 people migrating to the area over the next few decades. The utility is undertaking a number of significant wastewater infrastructure projects to accommodate this anticipated growth, one of which is the Warkworth to Snells transfer pipeline.  Watercare is tunnelling more Read More

85 years of Interflow

Interflow celebrates 85 years

Throughout its history, Interflow has pioneered technologies and renewal methods that have been well received for their innovation. The company was founded in 1936 by Harold ‘Bill’ Weaver, whose mission it was to support the growth of budding communities along the east coast of Australia. Weaver and his original team at Interflow constructed water, sewerage Read More