The Tunnelling Titans of Sydney Harbour Barangaroo, the 4400 tonne boring machine, is carving out two massive tunnels for the Western Harbour Tunnel motorway beneath Sydney's inner west.
With laser like precision, this steel giant is etching its way under the harbour, leaving a trail of innovation and determination in its wake. The project's sheer scale is awe inspiring.
Two hyperbaric chambers stand at the ready to rescue workers from the crushing pressures beneath the harbour, particularly in the ancient riverbed known as the paleo channel.