Rig at work breaking down Powerhouse Parramatta structure

Powerhouse Parramatta Early Works

Parramatta, NSW
Infrastructure NSW
6 months
Completed 2021


Liberty was engaged to execute the early works contract for demolition and remediation on the site that will host the new Powerhouse Museum, Parramatta NSW. The project site was classified as a historic and culturally sensitive site. The scope of works included demolition, soil remediation, new build works, demolition of an existing multi-storey car park structure, non-heritage elements of St George Terrace and the decommissioning of an electrical sub-station including rerouting existing services and utilities.


  • The site was located alongside a major junction in Parramatta CBD, with a heavy pedestrian and vehicle traffic.
  • Restricted site access due to the presence of other construction/demolition projects nearby.
  • Preservation of European and Indigenous archaeological materials.

Robust Solutions/Exceptional Outcomes

Robust solutions

  • Liberty Industrial supervised and managed a third-party archaeological team to undertake an extensive European and Indigenous archaeological investigation. 15 European archaeologists and 5 Registered Aboriginal Parties (RAPs) conducted investigations on site.
  • Our project team also coordinated the provision of all plant and equipment such as the design, fabrication, and construction of a specialised water screening bath used to screen some of the finer material excavated onsite.
  • Liberty Industrial’s owned and operated 48t and 38t excavators to simultaneously break down the bulk of the car park structure, while a 25t excavator with a concrete cracker attachment was used to help with concrete processing and the demolition of small structures.


Exceptional outcomes

  • We removed approximately 12,000t of concrete and 400t of steel for off-site recycling. In addition, Liberty Industrial completed site remediation works to render the site clean for future museum development and public access.
  • Liberty Industrial’s team worked collaboratively with the RMS and the Heavy Vehicle National Register to transport plant and equipment on-site and deliver the works with little disruption to the adjacent community.
  • The project was delivered successfully with a sustainable, safe and efficient outcome.

Value Add


Closure Consulting

Long-term closure planning, budgets and redevelopment strategies for redundant sites, including Early Contractor Involvement and detailed estimates.


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.


Site Remediation

Site rehabilitation via methods such as bioremediation, containment, decontamination, dewatering, stabilisation, treatment and tracking to disposal of contaminants.


Managing PFAS in Site Closure Remediation


Bioremediation for Closure


Demolition and recycling phase completed for first major closure project for Rio Tinto at Argyle Diamond Mine, WA.

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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