Sydney's Super Tunnel Season 1 Episode 3
You can now watch the entire Sydney's Super Tunnel Season 1 Episode 3 movie online in high-definition quality, complete with English subtitles for a better viewing experience. Best of all, there’s no need to download anything—simply stream it directly from your device anytime, anywhere.
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.