The wastewater tunnel will run underground from Grey Lynn to our Māngere Wastewater Treatment Plant. Once completed, it will help reduce wet weather overflows into central Auckland beaches and waterways.
Grey Lynn to Point Erin Central Interceptor extension project
A water quality improvement programme to reduce overflows and clean up local waterways.
Grey Lynn Tunnel
The Grey Lynn Tunnel is designed to intercept and divert overflows from local networks in Grey Lynn and the Orakei main sewer to our wastewater plant in Māngere for treatment.
Herne Bay wastewater trunk sewer upgrade
A project aimed at delivering cleaner waterways and beaches by 2028.
Queen Street wastewater diversion
We are currently undertaking investigation works in the midtown area.