​​​​​​​​​​​​​​​​​​​​​​Bussell Highway Duplication

Bunbury to Busselton

  • Duplication of a 17 km section between Capel Bypass and Busselton.
  • The project will be delivered in two stages.
  • Increase capacity and safety of the highway and provide safer overtaking opportunities​​​

Image: Construction equipment and vehicles at the project site.


The 46 km section of Bussell Highway between Bunbury and Busselton is a four-lane dual carriageway, aside from a 17 km section between Capel and north of Busselton, which is a two lane single carriageway with passing lanes at approximately 5 km intervals in each direction.

Traffic volumes in this section exceed the capacity of the single carriageway section at times resulting in congestion and delays.

On Friday afternoons, due to the large southbound traffic volumes attempting to merge from two lanes, it is common for a queue of traffic to form southbound where the dual carriageway ends just south of Capel. The queue often extends through intersections that provide access into the Capel townsite, causing inconvenience and safety concerns for traffic accessing the townsite. Similarly, high traffic volumes heading north towards Perth after a long weekend are experienced.

​Completion of the dual carriageway involves:

Stage 1 (Capel Bypass to Ludlow Deviation): A 5 km second carriageway including reconstruction of part of the existing carriageway.

Stage 2 (Ludlow Deviation to Busselton): A 12 km section, including three bridges.

Other works will include:

  • Geotechnical investigations
  • Road and bridge designs
  • Service and utility impacts investigations and relocations
  • Land acquisition
  • Environmental and heritage impacts investigations and approvals
  • Working with the Shire of Capel and City of Busselton to finalise planning

Project Update

Contract Awarded

A $4.5 million contract to undertake pre-construction works for a second carriageway on the Bussell Highway has been awarded to Fulton Hogan Pty Ltd.

South-West based BCP Kaartdijin JV , an Aboriginal joint venture, will undertake the project on behalf of Fulton Hogan, engaging local Aboriginal people during works.

Construction work for stage one could commence in late 2020, subject to funding allocation.

September/October 2019 - Stage One

Pre-loading works for stage one of the dual carriageway, a five kilometre section between the Capel Bypass and Hutton Road, commenced in September 2019 with completion expected by January 2020. 

This major project milestone will see the land along sections of the road compacted with sand fill, which will remain in place up to 12 months prior to construction works commencing.​​

Commuters and southbound travellers are asked to plan their journey in advance as there will be disruption while works are in progress, with increased truck movements along the highway. 

​September/October 2019 - Stage Two 

Preparation works for stage two of the project, which include construction of a 12 kilometre section of carriageway between Hutton Road and Busselton, along with three bridges are continuing, including design and environmental approvals. 


An environmental impact assessment is currently being prepared to progress environmental approvals for Stage Two.


  • Increase capacity and safety of the highway especially on the long weekends and holiday traffic
  • Provide safer overtaking opportunities
  • Remove the problem of the Friday afternoon southbound merging queue adversely impacting on the intersection into Capel townsite
  • Reduce driver frustration


​We are continuing to seek funding for the project from the State and Federal Governments.​

Last Updated: 28 February 2020