The project is being delivered by the Ghella Abergeldie Joint Venture (GAJV) and will comprise nearly 20 km of tunnels, more than 17 shafts, a major pump station and significant wastewater management and network infrastructure works.
MTBM Domenica will be launched at May Road in Mt Roskill and dig two link sewers that will connect to the main wastewater tunnel totalling 4.2 km.
The machine has a length of 12 m and a diameter of 2.5-2.8 m.
The Central Interceptor will run underground from Western Springs, near the Auckland Zoo, to the Māngere Wastewater Treatment Plant.
The project will result in cleaner waterways for central Auckland and is scheduled for completion in 2025.
For more information visit the Watercare website.