Staff manually dismantling the bridge

Duck River Bridge Dismantling

Clyde, NSW
Viva Energy
2 weeks
Completed 2016


Viva Energy commissioned Liberty Industrial to remove a redundant 70m single span pipe bridge at the former Clyde Refinery. The bridge had been out of service for some years and required removal due to extensive corrosion and some missing steel members.


  • Whilst the bridge itself was under the jurisdiction of Roads and Maritime Services, the bridge support structures were located above the high tide mark, meaning approval for works in this area fell to two local Councils; Parramatta City Council on the western side and Auburn City Council on the eastern side of the river.
  • The project was located in an environmentally sensitive location - the Duck River was lined with mangroves which are protected by Government Legislation.

Robust Solutions/Exceptional Outcomes

Robust solutions

  • A skilled project team carried out extensive liaising with several government regulatory authorities.
  • We utilised 3D modelling simulation software and conducted extensive structural assessments of the bridge to determine the correct methodology.
  • Engaged a specialist rope access team.
  • Conducted rigorous subcontractor review to select dismantling contractor and naval architect to draw safe lifting plans.
  • Tested all pipelines to confirm they were free from potential hydrocarbon residue or explosive gases.
  • Sourced appropriate cranes and equipment to lift the bridge onto a barge, floating it down Duck River and landing it at the refinery wharf using a combination of mobile cranes.
  • The team processed the dismantled load with a 36t excavator, including a third member shear attachment. This allowed for efficient processing of the 50t of tubular structural steel, cutting it into manageable sections for loading  into the waiting transport for disposal.


Exceptional outcomes

The demobilisation of the barge was completed in the agreed two-week time frame and the area was handed back to the client free from hazard.

Liberty Industrial was awarded Winner in the ‘Contract of the Year under USD 1M category at the 2016 World Demolition Awards.

Value Add


Demolition Simulation and Modelling

With exclusive license to demonstrate using Extreme Loading® for Structures (ELS) software developed by Applied Sciences International (ASI).



Use of best approach demolition and dismantling such as explosive using world class fleet, safety and engineering methodologies in explosives and rigging.


Decontamination and Industrial Cleaning

Designing engineered solutions for decontamination such as removal of asbestos, heavy metals, PCBs, dioxins, PFAS and NORMs.


Asset and Resource Recovery

Comprehensive waste and recycling management to contribute to the circular economy to extend the lifecycle of materials.



  • 2016 World Demolition Awards, Contract of the Year Under US$1M - Winner

integrated capability responsible decommissioning

decommissioning closure and asset liability consulting

consulting risk management engineered solutions 3d simulation

and simulation liberty modelling dismantling and asset

dismantling and asset recovery synchronised safety

deconstruction resource recovery and recycling expert delivery

high expert industrial delivery reach consulting

expert delivery high reach explosive induced collapse

collapse specialised contracting decontamination

decontamination cleaning remediation environmental stewards

stewards risk mitigation and management waste disposal

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