Medlow Bath looking north.

Great Western Highway Upgrade Program

The Great Western Highway is one of Australia’s most historic roads and a key east-west connection out of Sydney. Over the last 100 years, the NSW Government has progressively upgraded sections of the highway to make it safer and more reliable.

In 2019 the NSW Government committed $2.5 billion to the duplication of the Great Western Highway between Katoomba and Lithgow, a project that complete the final 34 kilometres of a modern dual-carriageway link over the entire Blue Mountains.

In 2021 the Federal Government committed a further $2.03 billion towards upgrading the Great Western Highway between Katoomba and Blackheath, and between Little Hartley and Lithgow.

In 2018, $30 million was announced to upgrade the highway between Kelso and Raglan.

Important safety improvements have been delivered through the safety upgrade program along the Highway at Blackheath, Mount Victoria and Forty Bends. This work has seen improved road surfaces, intersection upgrades and lane widening delivered as part of the $250 million investment by the Australian and NSW governments.

Latest news

JUN 2021

JUN 2021Great Western Highway upgrade powering ahead

Construction on the game-changing Great Western Highway upgrade between Katoomba and Lithgow is on track to start next year, with the Australian and New South Wales Governments now committing funding towards congestion-busting improvements to the journey over the Blue Mountains.

View the media release for more information.

JUN 2021

JUN 2021Safer passage through Medlow Bath ahead of full highway

upgrade

Motorists are enjoying improved journeys on the Great Western Highway this long weekend, with safety upgrades through Medlow Bath at Bellevue Crescent and Foy Avenue now complete.

View the media release for more information.

MAY 2021

MAY 2021Australia's longest road tunnel proposed for

Great Western Highway

Investigations are now underway to make an 11-kilometre tunnel the central component of an upgraded Great Western Highway between Katoomba and Lithgow, forming what would be Australia's longest road tunnel.

For more information please see the latest media release.

Documents

Media releases

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14 June 2021

Safer passage through Medlow Bath ahead of full highway upgrade

49.4Kb
14 June 2021

Great Western Highway upgrade powering ahead

50.7Kb
28 May 2021

$8.5 million road safety investment extends to Meadow Flat School

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Contact us

If you have any questions or would like more information please contact our project team:

Phone: 1800 953 777

Email: gwhd@transport.nsw.gov.au

Post: Great Western Highway - PO Box 2332, Orange NSW 2800

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