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Great Western Highway Upgrade Sections between Katoomba and Lithgow

Funding Program:Investment Road and Rail Program
Transport Mode:Road
Expected Start/Finish:July 2008 - March 2013
Estimated Project Cost:$31,724,000
Australian Government Contribution:$12,500,000
Local Council/Shire:Blue Mountains City Council,City of Lithgow Council
Corridor:Sydney - Dubbo

Project Description

The Great Western Highway provides the principal link between Sydney and central New South Wales.

This project involves the development of a concept design for an upgrade of the Great Western Highway between Mount Victoria and Lithgow.


Completion of the concept design has enabled reservation of the road corridor boundaries to allow for a future upgrade of the highway.

Realigning the highway at Forty Bends will improve safety and reliability of travel, reducing the likelihood of crashes and potential road closures in winter months due to the formation of black ice.

The safety upgrades will improve safety for both local and through traffic on the highway between Katoomba and Lithgow.


The Australian Government contributed $12.5 million to the concept design.

The Australian Government is contributing $200 million towards the $250 million upgrade of the Great Western Highway between Katoomba and Lithgow. The NSW Government is contributing $50 million.


The NSW Government announced its preferred corridor option in August 2009 and the preferred route within the corridor in May 2010. The concept design was completed in March 2013.

Disclaimer: The material contained in this site is made available on the understanding that the Department is not thereby engaged in rendering professional advice for a particular purpose. Before relying on the material in any important matter, users should carefully evaluate the accuracy, completeness and relevance of the information for their purposes and should obtain appropriate professional advice relevant to their particular circumstances.

Project details last updated: 20/07/2015