Watercare's $1.2 billion Central Interceptor project is now more than 2Km underground and heading towards the Manukau Harbour.

The 14.7 kilometre Central Interceptor wastewater tunnel — the longest, biggest and most expensive pipeline in the country — is creeping its way underground, to create a wastewater tunnel that will run between Western Springs and the Māngere Wastewater Treatment Plant.  

Shayne Cunis is the Executive Programme Director for the Cental Interceptor and he joined Kerre Woodham.