Tower ad (left) Oct-nov FY21
Tower ad (right) oct-nov FY21

Central Interceptor TBM passes final test

Watercare has released a video of the Central Interceptor Tunnel Boring Machine (TBM) completing its final factory test at Herrenknecht’s manufacturing plant in Germany.

As the biggest wastewater infrastructure project in New Zealand, the Central Interceptor tunnel will travel from Grey Lynn to the Māngere Wastewater treatment Plant.

The project is being delivered by the Ghella Abergeldie Joint Venture (JV) and the project’s TBM has been assembled at Herrenknecht’s factory in Schwanau, Germany, over the past 10 months.

Named ‘Hiwa-i-te-Rangi’ after one of the Matariki stars, the TBM is 190 m long and 5.47 m in diameter.

With extensive testing now complete, Hiwa-i-te-Rangi will begin work on the 14.7 km tunnel early in 2021.

For more information visit the Watercare website.

If you have project news you would like featured in Trenchless Australasia contact Assistant Editor Sophie Venz at

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