Sydney's Super Tunnel Season 1 Episode 3
Stream the full Sydney's Super Tunnel Season 1 Episode 3 movie online for free in crystal-clear HD quality. No downloads required—just press play and enjoy the action, complete with English subtitles for an enhanced viewing experience.
Another super challenge looms, perhaps the greatest of the entire project - digging two tunnels beneath Sydney Harbour.
In the early planning stages, the team actually considered dropping pre-fabricated tunnel sections down onto the floor of the harbour one by one, lowering them from barges, which was the way the road tunnel under the harbour was built.