Collie to Mumballup Road Upgrade

  • Upgrade Collie Mumballup Road between Greer Road and Donnybrook-Boyup Brook Road
  • Works on Stage 1 have been completed. We continue to seek feedback on future upgrades.  
  • Increase the seal width to improve safety


Image: Collie to Mumballup Road Upgrade


The upgrade has increased the road width from the existing six-metre seal to ten metres, by installing one to two-metre wide sealed shoulders on each side of the existing road. As the terrain along this road undulates in some areas, further design investigation will be undertaken to address some land, services and minor alignment improvements along the road.

Where possible, safety will be enhanced by protecting or eliminating roadside hazards, such as large trees and steep embankments.

Project update

The first stage of works commenced south of Greer Road in late March and was completed in May. A key focus during construction was to minimise the environmental impacts as much as possible.

We continue to seek feedback from the community and stakeholders on future upgrades.

Image: Collie to Mumballup map


• Improve safety


  • Late March 2019: Stage 1 construction commenced
  • May 2019: Stage 1 construction complete
  • Additional stages will be planned in consecutive financial years.

​Find out more


Last Updated: 06 September 2019