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The T2D Project is the final 10.5 km piece of the North-South Corridor and the most significant road infrastructure project ever undertaken in South Australia. Using a combination of tunnels, lowered and ground-level motorways, as well as overpasses and underpasses at key intersections, T2D will bypass 21 sets of traffic lights between the River Torrens and Darlington.

Set to unlock Adelaide’s traffic network, T2D will stimulate economic activity, supporting up to 4,900 jobs and help ensure people, produce and products arrive where they need to be safer and sooner.

The design for T2D consists of two tunnel sections joined by a lowered motorway. The Southern Tunnel will connect Darlington to Anzac Highway, while the Northern Tunnel will be located north of Anzac Highway and connect to Torrensville. The Southern Tunnel and Northern Tunnel will be joined by the Tunnel Connector lowered motorway.

T2D Tunnel artists impression