Mining and Resources

Gorgon Site Development and Wapet Landing

Chevron Australia

The Gorgon Project developed the Greater Gorgon Area gas fields, located 130km off the northwest coast of WA. Ertech was been a long-term service provider to Chevron on Barrow Island.

EWebsiteGorgon Exp

Fast Facts

Location: Barrow Island, 130km off the north-west coast of WA

Start: July 2009

Peak Workforce: 220

Completion: October 2011

Scope

Ertech constructed the Site Development and WAPET Landing contract for the Gorgon Project at Barrow Island which involved:

  • Preparing a 22ha site for a Construction Village (including drill and blast and crushing)
  • Crushing in excess of 500,000 tonnes of pavement materials.
  • Construction of 300,000m² of sealed roads
  • Design & install of a 1 Ml per day reverse osmosis (RO) desalination plant
  • Erection of four communications towers up to 40m high
  • Civil works (earthworks and concrete) to accept a pre-packaged wastewater injection plant (WWIP).
  • Installation of pre-packaged WWTP including mechanical and electrical installation
  • Supply & install 20km HDPE pipe up to 315 diameter.
  • Supply & install 8 x 65kl fuel farm & install 8 x 110kl fuel farm
  • Design & installation of transportable office, ablution and crib facilities including all mechanical, electrical, potable and wastewater services
  • Construct RORO groyne barge berth including steel ramp, breasting dolphins and stop fenders for 6,000 tonne barges
  • Construct two new LCT landing berths with flexmats
  • Improvements to existing land backed wharf including supply and installation of a breasting dolphin
  • Supply & installation of navigation aids
  • Existing airport upgrade including pavement repairs, construction of new apron areas and complete bitumen reseal of runway, taxiway and aprons
  • Construction and HDPE lining of bridging utilities area to accommodate bridging RO plant, 1 Ml/day RO plant, two additional 700 kl/day RO plants and various fuel storage facilities

Additional works included:

  • Reticulation of sewerage and water mains
  • Supply and installation of duty and standby generators
  • Installation of Favco M2480D tower crane with 83m boom
  • Supply & operate sewer vacuum truck
  • Supply & operate potable water trucks
  • Supply & install cement stabilised pavements
  • Supply & install gabions and reno mattresses
  • Construction of explosives storage facility
  • Earthworks for fly camp