Tonkin Consulting

Garden Island Landfill Closure & Rehabilitation Wins CCF Earth Award!

4 September 2015

The Garden Island Landfill Closure & Rehabilitation project has been a collaborative effort between the Western Region Waste Management Authority, Contractors Leed Engineering & Construction and McMahon Services and Tonkin Consulting as technical advisor, designer and Superintendent. It won the award for excellence in civil construction for projects between $10 - $30 million at the SA Civil Contractors Federation awards night, held on 14 August 2015.

Garden Island is part of the estuarine system formed by the Port Adelaide River and Barker Inlet. The landfill occupies 54 hectares of the island’s 150 hectares and prior to its closure in 2000, served the domestic waste disposal needs for almost half of Adelaide.

The site is owned by the Land Management Corporation (now Renewal SA) and was operated as a landfill by several parties but most recently the Western Region Waste Management Authority.

The project has addresses several legacy and environmental issues at the site and has been staged over ten years.  At its completion is the largest landfill cap completed to date in South Australia.  Responsibility for the site reverted to Renewal SA on 1 September 2015. 

  Image shows Garden Island after rehabilitation.

 

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