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Heavy Vehicles

During works on the Hahndorf/Woodside/Birdwood outbound off ramp, outbound heavy vehicles will be required to detour via the Mount Barker Interchange.

Please see the heavy vehicle detour map for details.

Heavy vehicle operators should consider if permits are affected by the above restrictions. If you require an amendment to your permit, please contact the National Heavy Vehicle Regulator on 1300 696 487 or

Please refer to the project website at or the Traffic SA website at for details.

The Department appreciates your patience and cooperation while these important works are undertaken.