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Fleurieu Connections

The Australian and South Australian governments have committed $560 million to jointly fund the Main South Road and Victor Harbor Road duplication projects, to be delivered by the Department for Infrastructure and Transport (the Department).

Concept designs have been developed for Stage 1 of the Main South Road Duplication Project, between Seaford and Aldinga and for the Victor Harbor Road Duplication Project, between Main South Road and Main Road, McLaren Vale.

The concept designs for both projects have been developed to encompass project objectives, design criteria, community and stakeholder feedback to date and the outcomes of environmental, social, safety, economic and preliminary site investigations.

The Department invited the community to provide feedback on two scenarios currently being considered to assist in informing decisions around the overall delivery and funding allocation for these projects.


  • Duplication of Main South Road, Stages 1 and 2 from Seaford to Sellicks, including dual lane roundabouts at the intersection of Tatachilla Road/Maslin Beach Road, Port Road and Aldinga Road.
  • Duplication of Victor Harbor Road, between Main South Road and Main Road, McLaren Vale.


  • Duplication of Main South Road, Stage 1, from Seaford to Aldinga including a grade separation at the intersection of Tatachilla Road/Maslin Beach Road, and dual lane roundabouts at Port Road and Aldinga Road.
  • Upgrade of Stage 2, from Aldinga to Sellicks, to address safety and future capacity of Main South Road.
  • Extend Victor Harbor Road duplication from Main South Road past Main Road, in McLaren Vale to Tatachilla Road to a proposed posted speed limit of 100km/h.


Community feedback, in addition to other criteria such as project objectives, road safety, design, engineering, economic, cultural and environmental investigations, will help inform how the Department progresses the design and delivery of these projects.

A decision can then be made on the scenario which will provide the best possible outcome for the public overall.

Community consultation on all aspects of the concept designs for Main South Road Duplication Stage 1 and Victor Harbor Road Duplication closed on 28 May 2021. All feedback received is currently being reviewed by the project team.

Virtual Rooms

Visit the virtual rooms to view the details of these treatments under two possible scenarios, in addition to concept designs for Main South Road Duplication Stage 1 and Victor Harbor Road Duplication, and additional project information.

Community Consultation

The consultation period on the concept designs and proposed scenarios closed on Friday, 28 May 2021.

All feedback received from the community will be reviewed and considered by the project team.

Community and stakeholder engagement is an important part of the planning, design and delivery process. The Department will continue to engage with residents, land owners, business owners and other stakeholders as the design is further developed.

Community Information Sessions

The Department held Community Information Sessions at McLaren Vale and Aldinga in the week commencing 19 April 2021.  The community was invited to drop into these to view the concept designs, speak to the project team, learn about the projects, ask questions and provide us with feedback.

What We Heard

Local residents, businesses, community groups, road users, cyclists and pedestrians have told us the following issues are priorities:

  • Road safety
  • Improved travel times
  • Decreased congestion
  • Safety and access for cyclists and pedestrians
  • Planning for future population growth
  • Improved sight lines
  • Consideration of amenity and natural environment
  • East-west connectivity considerations and access to properties.

Thank you to everyone who provided feedback via the survey, feedback forms, online engagement hub, information sessions, phone, email or in person. All feedback received will be reviewed and carefully considered by the project team to help inform the final design outcomes.

Next Steps and Project Timeframe

As we continue to plan and prepare for delivery of these important infrastructure projects, site investigation works will continue over the coming months including, geotechnical, environmental and cultural, heritage and service locations. Project design work will continue in the coming months using the feedback we heard to inform the final designs.

The project is planned to commence in late 2021, with dual lanes open to traffic in 2023.

DIT COVID-19 Response

The Department will continue to tailor community engagement opportunities in line with the latest COVID-19 advice from health authorities.

Face-to-face engagement opportunities may be restricted and we will continue to be guided by the advice of health authorities, with the health and safety of our stakeholders always our highest priority.

Engagement with community and industry is crucial and we will facilitate information sessions as much as possible to enable face to face engagement. It is important to assist in managing these events that you register as requested to enable physical distancing as much as possible.

Further information

If you have any further enquiries or would like to register your interest in the project to receive updates, please: