Watercare’s Central Interceptor is a major upgrade to Auckland’s wastewater system and, upon completion, will be the largest wastewater infrastructure project in New Zealand’s history. This NZ$1 billion, 14.7km long deep sewer tunnel will convey and store wastewater from the city’s combined sewer network.
The Hiwa-i-te-Rangi TBM breaking through at the halfway point of its 14.7km journey underneath Auckland, New Zealand
The project addresses aging and vulnerable assets, accommodates growth, and mitigates wet weather overflows into Waitematā and Manukau Harbours. The system will store peak wet-weather flows, facilitating...
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