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Condabri WWT


Miles QLD


Enerstream JV

Duration of Project

January 2012 – August 2012

Contract Value

$30.2 Million

Shamrock Civil were contracted by Enerstream JV to perform the early works at the APLNG Condabri Central project.

Scope of Work

  • Sediment and erosion control
  • Construction water ponds
  • Water Treatment Facility pad
  • Gas Processing Facility pad
  • Substation and temporary access roads
  • Initial site works involved the construction of 3km of sediment diversion channels with 8 sediment ponds, these works were required to be completed in a tight time frame, to allow the contract works to commence
Earthworks for the facilities involved:
  • Strip topsoil 37,000m3
  • Bulk earthworks 325,000m3
  • Quick lime treatment of fill material 175,900m3
  • 40,700T of select fill
  • 100,000m2 of topsoil & seeding and 35,000m2 Hydromulching
All of the fill material to the Water Treatment Facility was required to be quick lime treated; this required the use of lime stabilisers and slaking equipment. To ensure continuity of quicklime supply, Shamrock established quicklime storage facilities onsite. The works were challenging in nature, due to the scale of the quick lime stabilisation and the specification requirements. In addition to the bulk works, Shamrock also constructed 3.2km of access road sand construction water ponds which required:
  • 30,000T of gravel and select fill
  • 650m of reinforced concrete box culverts to Main Roads Standards
  • 10,400m2 of HDPE liner
  • 2 spillways

Project Complications & Achievements

The project recorded 218 days LTI free and over 100,000 man hours LTI free.