HMAS Coonawarra


Customer: Laing O’Rourke as Managing Contractor for Defence

Contract: Design and Construct

Location: Darwin, Northern Territory


Ports & Coastal Solutions Australia

Fast Facts

  • 250 m long wharf
  • Two approach jetties
  • Enhancing ADF's maritime defence capability

We refined the initial concept design and constructed a new outer wharf structure at HMAS Coonawarra in Darwin to support the Australian Defence Force (ADF).  The project involved the construction of a new 250 m long wharf and two approach jetties. 

While the final structures are simple in their geometry and configuration, the site location and operational requirements were challenging. 

Innovative in-house temporary work designs for falsework, piling, and construction access systems were needed to optimise delivery and address the challenges of safe working within Darwin's extreme tides.

High local content targets were achieved by engaging a fully localised labour workforce (no FIFO) and through the use of local consultants and subcontractors. Indigenous engagement exceeded target, achieving 16% of overall workhours.

Strong stakeholder relationships were also needed to ensure zero unplanned impact on Defence operations.

Now completed, the facility provides additional berthing and support services for Royal Australian Navy vessels and has a 100-year design life. 

The project was part of a broader upgrade at HMAS Coonawarra, as part of the Larrakeyah Defence Precinct Redevelopment Program (LDPRP).

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