ProjectBLANCHE sets tunnelling recordJonathan WhittakerOctober 5, 2018October 1, 2018 by Jonathan WhittakerOctober 5, 2018October 1, 2018 A new Tunnel Boring Machine (TBM) was used at Army Bay, Whangaparaoa to help install a new outfall pipeline, as part of $31 million upgrades...