File:Sydney Metro Northwest - TBM2 Florence breaks through at Norwest

Description
Did you know Sydney Metro Northwest is the first transport infrastructure project in Australian history to use four Tunnel Boring Machines? In March 2015 Florence showed us at Norwest just how a tunnelling breakthrough is done and gave a lesson on how to make an appearance – breaking through a solid rock wall and leaving chunks of sandstone the size of a small car in her wake!