This project by Main Roads Western Australia has achieved a 'Commended' As Built v1 IS Rating.
Overview
A 4.2km section of the Great Eastern Highway between Kooyong Road and Tonkin Highway widened from four to six lanes with a number of ancillary improvements including central medians, upgraded intersections, on road cycling facilities, bus priority lanes and continuous paths for pedestrians. The project was jointly funded by the Commonwealth’s Nation Building Program and Government of Western Australia.
“The IS rating process has encouraged Main Roads WA to formally identify major projects where project teams are able to implement best-practice and innovative sustainability solutions to deliver long-term environmental, social and economic benefit through WA road infrastructure.”
Leo Coci | Executive Director | Infrastructure Delivery Directorate | Main Roads Western Australia
“The entire Project Team was enlisted to support the achievement of this rating, from generating ideas relating to protecting the environment and sustainability during the design phase, through to making a difference in minimising the use of water and correct disposal of waste during construction.”
Stephen Nicolay | City East Alliance Director | Project Manager | Leighton Contractors
Details
- Rating Type Road
- Rating Score 29
- Registered Date January 2011
- Certification Date January 2013
- Practical Completion March 2013
- Jurisdiction Australia
- States WA
- Suburb Perth
- Assessor Louis Bettini
- Capital Value $350 Million
- Other Stakeholders Boral, CPB Contractors Pty Limited, GHD, Main Roads Western Australia, NRW
Rating Highlights
Management Systems
Score: 6.3/10.5
- Commitment to mitigating negative environmental, social and economic impacts
- Accredited management systems
- Thorough risk and opportunity assessment
- Knowledge sharing clearly demonstrated
- Strong decision making approach incorporating sustainability aspects
Water
Score: 2.9/7.0
- Opportunities to reduce water use identified and implemented
- Instead of using high-value potable water, the project installed groundwater bores and constructed a weir which, on completion, was handed to the local council to irrigate parks
Materials
Score: 6.2/7.0
- Significant reduction in materials lifecycle impacts through extensive use of recycled materials, reducing the use of non-renewable resources of limestone, sand and bitumen
- The highway now has the largest use of recycled material on any WA State road with 43 per cent of imported material being recycled
Land
Score: 3.3/3.3
- >75% of land used for the project was previously disturbed
Heritage
Score: 2.3/5.0
- Thorough approach to heritage assessment and management
- Monitoring overseen by appropriately qualified persons
Innovation
Score: 1.7/5.0
- Warm mix asphalt was used on the project, applying innovative foaming technology to mix the bitumen into the asphalt mix
- This was a first for Western Australia, reducing energy use and GHG emissions
Website
To find out more about this project, visit the Main Roads WA website.