Department of Infrastructure, Transport, Regional Development, Communications and the Arts

Great Western Highway – Forty Bends Upgrade

Funding Program:Investment Road and Rail Program
Transport Mode:Road
Expected Start/Finish:Early 2015 - Late 2017
Estimated Project Cost:$64,320,000
Australian Government Contribution:$64,320,000
Local Council/Shire:City of Lithgow Council
Corridor:Sydney - Dubbo

Project Description

This project forms part of the $250 million Great Western Highway - Katoomba to Lithgow project. It involves the upgrade of 2.5 kilometres of the existing two and three lane undivided highway at South Bowenfels to three lanes divided by a central median for the full length. It also includes construction of a concrete arch and earth embankment over Whites Creek with two lanes in each direction.


The upgrade is expected to improve safety and reliability on this section of highway by reducing traffic incidents that occur in adverse weather conditions. It is also expected to reduce potential road closures in the winter months due to black ice.


The Australian Government is contributing $200 million to the $250 million Great Western Highway - Katoomba to Lithgow package with the New South Wales Government contributing $50 million. As part of this package of works, the Australian Government is fully funding the $64.32 million Forty Bends Upgrade. 


Construction commenced in early 2015 and was completed in mid 2017.

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: 3/10/2019