Sydney's Super Tunnel

2. What Lies Beneath

We check in on our engineers encountering all manner of issues tunnelling through a minefield of existing infrastructure - skyscraper footings and basements, sewers, a graveyard, and rail tunnels.

3. Digging Deep

Another super challenge looms, perhaps the greatest of the entire project - digging two tunnels beneath Sydney Harbour.

4. Fast Tracked

We follow architect Ross de la Motte, seeing that his vision for the stations has finally come to light. He has gone to great lengths to design stations that benefit from natural light and airflow.