Aurecon ensures technical advice to SA for the Torrens to Darlington project.

Projects

North-South Corridor, Torrens to Darlington, Adelaide, Australia

Master Advisory Services for Torrens to Darlington, final part of Adelaide’s largest ever infrastructure project

The 78-kilometre North-South Corridor (NSC) in Adelaide is identified by the Australian and South Australian Government as one of the State’s most important transport corridors, being the major route for north- and south-bound commuter traffic and freight vehicles.

Planning and design for the final and most complex 10.5-kilometre section between the River Torrens and Darlington is underway, with the Aurecon Mott MacDonald Joint Venture awarded the Master Advisory Services contract.

The joint venture’s role is to ensure the State Government receives accurate and independent technical advice to inform the Torrens to Darlington project’s design and planning. In addition, it will be undertaking, or assisting the Department on, the various environmental and land planning approvals required.

Specialist advice for strategic infrastructure

Frequently congested, the existing Torrens to Darlington section of South Road is not capable of handling the growing number of vehicles forecast to use it in the years ahead. The joint venture will support South Australia’s Department for Infrastructure and Transport by providing:

  • Land, planning and environment advice on obtaining appropriate approvals for the project
  • Engineering and technical advice in the development of the final business case and reference design
  • Business case support
  • Input into the preparation of the tender requirements for the delivery contract procurement process

Two tunnels to preserve communities and reduce travel time

Construction of the final section will deliver a non-stop, free-flowing 78-kilometre motorway stretching from Gawler in the north to Old Noarlunga in the south. This is the second section of the North-South Corridor to which Aurecon has recently applied its experience, after contributing as lead designer for the Torrens Road to River Torrens project.

To minimise the impact of the project and protect community and heritage assets above ground, approximately 60 per cent of the project’s length will be underground in two tunnels.

Stage One – the Southern Tunnel – will deliver approximately 5.7-kilometres of motorway, including more than 4-kilometres of twin, three lane tunnels, with a tie-in to the Darlington Interchange Upgrade Project. Stage Two will consist of open motorway and the Northern Tunnel, with a tie-in to the recently completed Torrens Road to River Torrens at Hindmarsh.

When complete, the Torrens to Darlington project will allow motorists to bypass 21 sets of traffic lights and reduce travel time by approximately 20 minutes. Working collaboratively with the Australian and South Australian Governments, the joint venture is helping to implement this significant infrastructure project for the State – one that will revolutionise the movement of people and goods across Adelaide.

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