Department of Infrastructure, Transport, Cities and Regional Development print logo

Princes Highway West – Winchelsea to Colac Duplication

Funding Program:Investment Road and Rail Program
Transport Mode:Road
Expected Start/Finish:Early 2015 - Late 2019
Estimated Project Cost:$337,469,000
Australian Government Contribution:$168,734,500
Local Council/Shire:Colac Otway Shire,Surf Coast Shire

Project Description

The project will duplicate 35km of the Princes Highway West from Deans Marsh Road, Winchelsea to Baillie Street, Colac and rehabilitate 2km from Baillie Street to Corangamite Street in Colac. The project will also upgrade existing bridges, pedestrian and bicycle paths, install new traffic signals and parking bays, reinstate local access and grade separate the Geelong-Warnambool Rail Line near Warncoort.


The project will increase capacity, improve travel time reliability and vehicle safety, and reduce vehicle operating costs and environmental emissions.


The estimated cost of the project is $363.5 million. The Australian Government is contributing $181.7 million and the Victorian Government $181.7 million.


Construction commenced on 28 April 2015 and was completed in late 2019.

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: 24/03/2022