Construction of the Central Interceptor is well underway
Over the next four years we’re building the Central Interceptor tunnel to help make Auckland's waterways cleaner. The Central Interceptor will run underground from Grey Lynn to our Māngere Wastewater Treatment Plant. It will have several link sewers and shafts along the route for collecting and transferring wastewater into the tunnel.
Our contractor Ghella Abergeldie Joint Venture (GA) is building the Central Interceptor. GA has more than 150 years’ experience with tunnelling and wastewater projects of this size across the globe.
Once completed, the tunnel will be 14.7 kilometes in length, the longest bored wastewater tunnel in New Zealand. At 4.5 metres in diametre, it will be high enough to fit a giraffe and wide enough to fit four rhino side by side.
To find out more about the project, click here to watch our video and see how the Central Interceptor will make Auckland a better place to live.