Princes Highway Duplication

April 20, 2017

Princes Highway duplication update – July 2016

The Princes Highway is a strategic link between Melbourne, Geelong, the western district, Adelaide and South Australia.

The Australian and Victorian Governments are providing $363 million to upgrade the 37 kilometres between Winchelsea and Colac.

This project will build on the benefits already being enjoyed by drivers on the newly completed $171 million highway duplication between Geelong and Winchelsea.


Geelong to Winchelsea

All works between Waurn Ponds and Winchelsea are now complete.

Improvements include:

  • Duplication of 23 kilometres of highway – widening and upgrading to four lanes.
  • A new bridge over the railway line at Buckley.
  • Improvements to the town of Winchelsea, including safer turning opportunities, crossing locations for pedestrians, new traffic lights at Hesse Street and Deans Marsh Road.
Winchelsea to Colac

The Princes Highway duplication from Winchelsea to Colac will be delivered in four sections:

  • Winchelsea to Armytage, approximately 11.5 kilometres of highway duplication
  • Armytage to Warncoort, is approximately 15 kilometres long and includes two new bridges over the Geelong-Warrnambool railway line
  • Warncoort to Colac East, approximately 8.5 kilometres of highway duplication
  • Colac East and Colac improvement works cover 2 kilometres of existing road, including upgrades to the bridges over the railway line and Barongarook

For more information about the project, visit