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Northern Tunnels

TunnelsThe twin Northern Tunnels – in northbound and southbound directions, each with three traffic lanes – are part of Stage 2 of the T2D Project connecting Anzac Highway to the River Torrens.

This section has about 4 km of motorway, just over 2 km of which is tunnels.

It will link Stage 1 of the T2D at Anzac Highway to the already completed Torrens to Torrens Project, and provide connections to key destinations such as the Adelaide CBD and Adelaide Airport.

Construction of the Northern Tunnels is expected to begin in 2026 – subject to planning, approvals and funding – and be completed by 2030.