ACCIONA has achieved a final Infrastructure Sustainability Council (ISC) Design Rating of 88.7 points for the M80 Ring Road Completion in Melbourne, Victoria, marking the highest Design score under IS v2.1 in the country.
This milestone reflects the project's pioneering approach to sustainability through Australian-first and Victorian-first innovations that significantly reduce carbon emissions, enhance community connectivity, and promote circular economy principles.
Ross Brookshaw, Manager Sustainability, M80 Ring Road Completion, highlighted the broader vision behind the achievement. "The M80 Ring Road Alliance is aiming to create a fundamental change in how infrastructure projects are delivered," Mr Brookshaw said. "By empowering people to realise their potential, we're not just building infrastructure – we're creating lasting social, environmental and economic benefits for generations to come."
The project, which is being delivered for the Victorian Infrastructure Delivery Authority, connects the M80 Ring Road to the North East Link tunnels and Eastern Freeway. When complete, it will result in the removal of approximately 19,000 vehicles from local roads each day and the bypassing of 18 traffic lights. These improvements reduce congestion, improve freight efficiency, and deliver more than 10 kilometres of new walking and cycling paths, enhancing accessibility and liveability for local communities.
Australian-First and Victorian-First Innovations
Sustainability outcomes were driven by a suite of innovations. Australian-first technologies included:
- temporary hoardings made from recycled cardboard panels,
- an electric piling rig powered by green energy, and
- StormFlo subsurface drainage pipes manufactured from recycled plastics,
- ultra-low warm mix asphalt, and
- Rubber T Lok safety barriers incorporating recycled tyres.
Victorian-first initiatives featured:
- low-carbon reinforced concrete pipes,
- sustainable concrete mixes with high recycled content, and
- recycled plastic void formers for retaining walls.
The adoption of a glass fibre reinforced polymer bridge deck provided a lightweight, low-carbon alternative to traditional materials, reducing embodied emissions and material use.
Carbon Reduction and Resource Efficiency
The project achieved approximately 38 per cent reduction in construction greenhouse gas emissions and a 24 per cent renewable energy target during construction. Resource efficiency was a key focus, with 35 per cent recycled content across materials and up to 99 per cent in some applications, alongside a 28 per cent reduction in lifecycle material impacts.
Verified innovations delivered significant carbon savings, including approximately 19.5 tonnes of CO₂-e avoided through recycled cardboard hoardings and 569 tonnes saved via the electric piling rig. Reuse of plastics, tyres, and composites further strengthened the project's circular economy outcomes.
Ecological Restoration and Community Legacy
Ecological restoration covered 50 per cent of the project footprint, improving biodiversity and integrating Indigenous design themes across three precincts to celebrate cultural heritage. These efforts were complemented by solar installations on community facilities and enhancements to local connectivity, reinforcing the project's social and environmental legacy.
The M80 Ring Road Completion sets a new benchmark for sustainable infrastructure delivery in Australia, demonstrating how innovation and collaboration can achieve lasting benefits for communities and the environment.