Queensland’s Department of Infrastructure, Local Government and Planning/Economic Development commissioned Liberty Industrial to remove wharf structures including 18,000m2 of concrete deck and substructure with timber bearers, joist and concrete headstocks, edge beams, as well as over 1,900 piles. Stage 1 and 2 needed to be delivered concurrently to meet a tight schedule.

• A detailed structural assessment uncovered the wharf to be in a state of disrepair posing a serious risk of collapse as works progressed. The piles varied from timber to concrete sleeves to hollow and concrete-filled steel piles some of which exceeded a metre in diameter.
• During site works, our team discovered two 1,100mm diameter steel piles previously not identified at the tender stage, which were larger in circumference than our underwater diamond wire saw.
• When dive works commenced, the crew also identified large numbers of broken piles and other debris scattered along the river bed. None of these materials were identified during the pre-demolition hydrographic survey.
• Stringent environmental controls had to be implemented to limit any discharges into the river or disrupt commercial or recreational operations on the river.
• All suitable timber had to be recycled for reuse as high quality structural and architectural hardwoods, with select pieces to be used in future landscaping and structural architectural features across the development site.