- the existing interchange will be upgraded to a full interchange, allowing access to and from the South Eastern Freeway in all directions.
Mount Barker Interchange upgrade
- the existing interchange will be upgraded to include the installation of a new three lane bridge across the South Eastern Freeway for northbound traffic; the conversion of the existing bridge to accommodate three lanes of southbound traffic and a new Shared Use Path; improved ramp capacity and new traffic signals to reduce congestion and improve safety.
Hahndorf Main Street Upgrade
- revitalisation and upgrades to Hahndorf’s main street, Mount Barker Road (the Main Street) in collaboration with Mount Barker District Council.
Extension of Pioneer Women's Trail
- the trail will be extended between Verdun and Hahndorf which will include a bridge replacement and widening over the Onkaparinga River to accommodate the new section of the trail.
Upgraded multi-purpose car park facility at Verdun
- this upgrade will improve access to public transport.
Following community feedback and technical assessments, the previously proposed new interchange on the South Eastern Freeway near Hahndorf has been removed from the project scope acknowledging the impacts on the surrounding heritage and environment.