Mining and Resources

Ichthys GEP Project Landfall Crossing

Boskalis Australia

The contract was for works associated with the construction of the 889km gas export pipeline from the Ichthys field in the browse basin to Darwin.

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Fast Facts

Location: North-west coast, WA

Start: January 2014

Completion: September 2014

SCOPE

The project included:

  • Site access and clearance works, including construction of intersections with Wickham Point Road
  • Construction of temporary access roads and loading areas over salt flats and mangrove areas
  • Design and construction of a sheet-piled cofferdam to facilitate the installation of the gas export pipeline
  • Excavation and pumping to offshore barges of excavated mangrove muds
  • Acid Sulphate treatment of excavated soils where required
  • Removal of the cofferdam and access roads following completion of the pipe pull and reinstatement of the site