- Adelaide's North-South Corridor
- Northern Expressway
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- About the Project: Fact Sheet
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- T2D Public Exhibition November 2021
- Project Update: Anzac Elevated Ramp Oct 2021
- Community Engagement Report August 2021
- Ground Investigation Map - July 2021
- What is a Tunnel Laydown Area - July 2021
- Community Reference Design - July 2021
- Community Survey Update - June 2021
- Reference Design Released - November 2021
- Explore and Have your Say on the Reference Design - Dec 2021
- Extending Feedback on the Reference Design - Dec 2021
- Delivery a Lasting Legacy for the Community - Feb 2022
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Southern Expressway Duplication
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Latest news
Southern Expressway open to two-way traffic
The Southern Expressway opened to two-way traffic on Sunday 3 August 2014.
Download a copy of our latest brochure, providing information on how to use the duplicated expressway. Please observe and obey on-site signage and take care whilst driving along the expressway and through the interchanges.
Overview
The $407.5 million duplication of the Southern Expressway is a key part of the development of Adelaide's north-south corridor and delivers an 18.5 kilometre multi-lane, two-way expressway between Bedford Park and Old Noarlunga.
This provides people living in Adelaide’s south with improved access to employment, education, shopping and community facilities and puts Adelaide’s southern beaches and the McLaren Vale wine region within easier reach.
The duplicated expressway supports economic activity in Adelaide’s southern commercial and industrial areas like Reynella, Lonsdale and Noarlunga Centre and helps the state achieve identified targets in the South Australia Strategic Plan.