It’s one of the greatest feats in Australian engineering history.

A new 21st century metro railway linking Sydney’s ever-expanding suburbs to the beating heart of the city – one that will include twin tunnels under the harbour and the CBD itself.

The critics said it couldn’t be done. That it was just too hard – an engineering feat on par with London’s extraordinary Cross Rail project under the Thames and Australia’s legendary Snowy Mountains Hydro-electric Scheme.

But the critics were wrong.

The result is testament to Australian ingenuity and daring. And the vision will blow your socks off.

In less than 16 months, four massive tunnel boring machines have travelled 30 kilometres to create two tunnels deep under suburbia, with almost five million tonnes of rock excavated along the way.

Cameras have been deep underground following the 9000-strong workforce – 390 of them tunnellers – operating day and night to carve out the new subterranean masterpiece.

On track to open to customers in the first half of 2019, the $8.3 billion Sydney Metro Northwest will deliver eight new railway stations and 4000 car parking spaces for commuters in the booming Hill’s district of north-west Sydney. The project is Stage 1 of Sydney Metro, Australia’s biggest public transport project.

Seven News’ Lee Jeloscek has the exclusive inside story of the epic project which has the world watching, and he meets the dedicated Australian team responsible for its engineering, construction and implementation.

Seven News Presents: World’s Best Metro airs on Thursday 14 July at 8pm on Seven.
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