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Certified: Adelaide's Torrens Road to River Torrens Project

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The Torrens Road to River Torrens Project (T2T) has achieved a 'Leading' As Built IS Rating. The project, an alliance between Aurecon, CPB Contractors, Mott MacDonald and Department of Planning, Wallbridge Gilbert Aztec (WGA)Transport and Infrastructure (DPTI), is South Australia's first project to achieve an As Built IS Rating.
 

T2T delivers a 4km non-stop section of roadway, providing significant travel time saving for commuters and freight transporters. The 3km section of lowered non-stop motorway provides three lanes in each direction, at up to 8 metres below the existing surface of South Road.

"The T2T Sustainability Policy from the get-go put the local environment, workforce, community and economy front and centre for the project.  Such a public declaration to these issues is exemplary for other projects and set the tone at the beginning and from the top down," commented ISCA Head of Ratings and Technical Services, Jon Avery.

Sustainability achievements attributing to a 'Leading' rating, the highest achievement available, include:

Under the materials credits, a 49% reduction in tonnes of carbon were avoided when compared to business as usual base case.  This equates to more than 43,000 tonnes of carbon that didn’t go into the atmosphere.  This was achieved through the use of

  • 20% RAP used in almost all asphalt

  • Innovative design of the retaining wall using soil nails, reducing the amount of concrete and steel – World First innovation
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  • ​Reductions in bridge deck area due to symmetrical design

​Under the Waste credits, full points were awarded meaning that spoil, C&D waste and office waste was recycled to the highest industry benchmarks.

Also, rewarded under one of the ecology credits, some great initiatives included:

  • Five basins for water treatment including swales encouraging natural regrowth
  • Installation of possum boxes strengthening local biodiversity

ISCA would like to congratulate the team involved in the T2T project, inclluding Rebecca Giles, Cathy Chesson, Andrew Larwood, Harry Turner, John Mowat, Jennifer Slocombe and Candice Cromie.
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