Perfect Contracting recently delivered a high-profile demolition project that pushed both engineering expertise and logistical coordination to new heights: the safe dismantling of the massive Rozelle Acoustic Sheds as part of the Sydney Metro West infrastructure works.
Working on behalf of AFJV, our engineering team faced a challenge that required meticulous planning, precision execution, and specialist heavy-lift capabilities—including the deployment of a 650-tonne crawler crane to remove structural components in one of Sydney’s most complex urban construction environments.
Understanding the Rozelle Acoustic Sheds
These towering acoustic sheds were originally constructed to mitigate construction noise during major tunnelling activities. Positioned over deep tunnel shafts in the heart of Rozelle, the sheds played a critical role in protecting surrounding residential and commercial areas from prolonged noise impacts.
However, once tunnelling operations were complete, the sheds became redundant and needed to be removed. Their size, location, and proximity to busy roads, residential zones, and active work sites meant that dismantling them would be anything but straightforward.
The Engineering Challenge
The Rozelle site presented multiple technical and environmental constraints:
- Confined Urban Site: With limited laydown space and surrounding traffic corridors, lifting operations had to be carefully sequenced.
- Heavy Structural Components: Many shed sections weighed in the tens of tonnes, demanding heavy-duty lifting equipment with superior reach and stability.
- Public Safety & Live Traffic: All works had to proceed without impacting traffic flow or compromising safety in adjacent pedestrian areas.
- Environmental Sensitivity: Noise, vibration, and dust control measures were essential to protect the surrounding community.
Given these factors, the operation called for a purpose-built heavy-lift strategy that balanced precision with absolute safety.
Deploying the Right Machine: The 650-Tonne Crawler Crane
After thorough engineering assessments, our team selected a 650t crawler crane as the optimal lifting solution. This crane offered:
- Exceptional Load Capacity: Capable of lifting large roof and wall sections in single, controlled movements.
- Long Reach & Flexibility: Allowing safe access to all shed sections without excessive repositioning.
- Superior Stability: Critical when operating with heavy loads in confined spaces.
The crane was mobilised to site and rigged with precision, ensuring it could operate within the strict load charts and lifting plans prepared by our engineering team.
The project was made possible by the deployment of a Manitowoc MLC650 crawler crane, one of the most advanced heavy-lift machines in Australia.
With a maximum lifting capacity of 650 tonnes and a reach of over 100 metres, the MLC650 is engineered for complex infrastructure works where both strength and precision are required. Its innovative Variable Position Counterweight (VPC™) system automatically adjusts the counterweight radius during lifts, providing superior stability while reducing the crane’s operating footprint—an essential feature for confined urban sites like Rozelle.
This capability allowed the team to safely dismantle large roof and wall sections of the acoustic sheds in controlled, single-piece lifts, ensuring efficiency, safety, and minimal disruption to the surrounding environment.
Step-by-Step Dismantling Process
The deconstruction of the acoustic sheds followed a carefully staged approach:
- Pre-Lift Surveys & Structural Assessment – Engineers inspected all connections and load points to identify safe lift sequences.
- Component Disconnection – Structural bolts, panels, and bracing were removed in a systematic order to reduce load stress.
- Precision Lifting – The 650t crawler crane removed large roof and wall sections one at a time, lowering them to ground level for processing.
- Material Management – Steel components were sorted for recycling, with waste materials disposed of in accordance with environmental guidelines.
Every stage was monitored by experienced lift supervisors and safety officers to maintain compliance with site and legislative requirements.
Safety and Community-Focused Execution
Throughout the project, safety was the absolute priority. We implemented:
- Traffic Management Plans to protect road users and maintain traffic flow.
- Environmental Controls including dust suppression, vibration monitoring, and noise mitigation.
- Stakeholder Engagement through regular updates to residents, businesses, and local authorities.
The result? A flawless, incident-free operation that not only met all contractual requirements but also reinforced our reputation for delivering safe, efficient, and community-conscious urban demolition projects.
A Benchmark in Urban Heavy-Lift Demolition
The successful decommissioning of the Rozelle Acoustic Sheds is a testament to Perfect Contracting’s ability to engineer and execute complex demolition works in some of Sydney’s most challenging environments.
By combining advanced lifting solutions, expert planning, and a strong focus on safety and stakeholder engagement, we delivered the project to the highest standard—on time and without disruption.
Perfect Contracting acknowledges the Aboriginal and Torres Strait Isander people as Traditional Custodians of the country on which we live and work. We pay our respects to the Traditional Custodians and Elders past, present and future, and honour their connection to the land and ongoing contribution to society.
