The skytrain has successfully crossed its second major roadway on Sydney Metro Northwest, Australia’s biggest public transport project.

“The skytrain span over Samantha Riley Drive at Kellyville has been completed with minimal disruption to the road network – this is another important milestone in delivering the $8.3 billion Sydney Metro Northwest,” Mr Constance said.

In a precision operation carried out over three nights, 10 massive concrete segments of the skytrain were lifted over Samantha Riley Drive at Kellyville.

The segments weighed between 70 and 90 tonnes and were lifted 11.5m into the air by the massive horizontal crane sitting above Samantha Riley Drive.

The segments were then attached and tensioned to form the deck of the skytrain, the elevated section of the new Sydney Metro Northwest which will run 4km from Bella Vista to Rouse Hill.

“This construction method keeps traffic moving beneath the seven major roads and the T-way which the skytrain crosses, minimising impacts on motorists,” Mr Constance said.

Once the skytrain is built, work will start on the elevated railway stations at Kellyville and Rouse Hill – two of the eight new metro stations.

Specially-designed deck segments are already in place at Kellyville for the station construction.

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Picture captions:

First look inside the Sydney Metro Northwest skytrain and some of the 1,400km of steel cables which help hold it together.

Construction continues on the 4km Sydney Metro Northwest skytrain, part of the $8.3 billion Sydney Metro Northwest, Stage 1 of Sydney Metro.