​Pinjarra Williams Road Improvement

East and West of Dwellingup.

Pinjarra Williams Road Improvement 

Image: Pinjarra Williams Road, newly sealed and widened with safety barriers


The existing two-lane road has narrow seal width, narrow gravel shoulders and steep batters. Works are planned through a series of stages over several years to address these concerns by:

  • Widening the existing road and constructing sealed shoulders
  • By flattening slopes and removing roadside hazards

Works east of Dwellingup: Widening works (earthworks and pavement installation) and drainage improvements have been completed.

Works west of Dwellingup: Completed in early-2018, we added a passing lane westbound and improved the recovery zone widths.

Project update

Sealing has been delayed due to wet weather and is expected to be completed by May.


The Environmental approval process is continuing for the remaining sections of road, which have not yet been upgraded.


  • Improved safety
  • Reduced risk of serious crashes
  • Support economic growth by enabling the effective movement of goods to support industry in the region.
Last Updated: 28 February 2020