Structural Remediation for Wharves at Coonawarra

Location

Darwin, NT

Details

DDR has been engaged to perform the following scope of works at Attack Wharf and Fremantle Wharf:

• Structural steel repair works.
• Ultra-high water blasting works.
• Protective coating works.
• Marine growth removal.
• Concrete jacketed pile repair works.
• Lead paint removal.
• Fabrication of new staircases.

The works will ensure the ongoing capability of accommodating Australia’s fleet of Armidale-class patrol boats well into the future.

Highlights

• Works completed in 6 stages. HOTO for each stage to be fully signed off prior to commencing works on the next stage.
• Wharves to remain operational throughout duration of the project.
• Flexibility required to change work stages based on Defence requirements at short notice.
• Working around live Defence training and refuelling operations.
• Environmentally critical project with no solid waste of any kind to be deposited into the harbour.
• Working with the challenges of Darwin’s 8m tides.
• Utilising local steel fabricators to supply and install new stairways.
• Continual monitoring of air and water quality to ensure blast and paint operations don’t have any negative impact on base operations and health of base personnel.