Fulton Hogan is carrying out the construction of the new 1km long x DN2100 storage tunnel. This includes a new 17m deep wastewater pumping station, six further manhole chambers along the main alignment, a new overflow structure, upgrades and connections to the live wastewater network. Additionally to this Fulton Hogan are demolishing the redundant infrastructure.

The new pipe travels from a new pump station in Maybury Reserve, up Elstree Avenue and then along part of Taniwha Street. To install the pipe we are using a tunnel boring machine (TBM) which digs tunnels deep beneath the ground. The TBM is lowered nine-metre-deep hole, and then tunnels to the next site, of which we have six in total.