A tunnel boring machine, named Amiria, has been digging out the last leg of a $400 million Watercare project which will ensure water comes out when Aucklanders turn on a tap.
The tunnel stretches 31km from a set of Watercare reservoirs in Manukau to those atop Khyber Pass.
About midday Thursday, Amiria popped out "bang on" where she was meant to at the top of the Khyber Pass reservoir.
Inside the tunnel will live an earthquake-proof water main with the capability of quenching 25 per cent of the city's thirst everyday.
