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.

LISTEN ABOVE