Watercare - Central Interceptor

Central Interceptor crew member pulls on a pair of overalls

Construction of the Central Interceptor is underway

Over four and a half years we’re building the Central Interceptor tunnel to help clean up central Auckland's creeks and streams. The Central Interceptor (CI) 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.

In 2018, Watercare awarded Ghella Abergeldie Joint Venture the contract to build CI. Ghella is an Italian family company with more than 150 years of Italian and international tunnelling experience. Australian company, Abergeldie, has delivered complex underground construction projects across New Zealand over the past four decades.