This project by McConnell Dowell Constructors (Aust) Pty Ltd has achieved an 'Excellent' IS Rating.
The project relates to the development of a light rail system that passes through key activity centres of Southport, Surfers Paradise and Broadbeach. The 13-kilometre Stage One corridor and any future stages promise to significantly improve the liveability of the Gold Coast by improving accessibility, while reducing the effects of congestion that comes with a rapidly growing city. It is one of the most important pieces of transport infrastructure ever undertaken on the Gold Coast.
"The IS rating scheme has challenged the way in which the Gold Coast light rail project procures materials. A greater emphasis on engaging potential suppliers prior to releasing packages has helped ensure sustainability targets are realistic and achievable.
We have incorporated sustainability right from the onset throughout the design, construction and delivery stages. This has allowed the project to go beyond the status quo and identify opportunities to minimise material usage, along with associated stakeholder and energy impacts."
Anna Scott, Environment & Sustainability Manager, McConnell Dowell
- Rating Type Rail
- Rating Score 64.4
- Registered Date June 2012
- Practical Completion July 2014
- Jurisdiction Australia
- States QLD
- Suburb Gold Coast
- Assessor Anne Carleton
- Capital Value $437 Million
- Other Stakeholders Arup Australia, Cardno, McConnell Dowell Constructors (Aust) Pty Ltd, GoldLinQ Consortium, Bombardier Transportation, KDR
Click here to read a case study on this project.
Good scores on most credits.
Particularly good examples of knowledge sharing (toolbox talks, discussion forums, series of you-tube web episodes for use within the Australian Schools curriculum, including sustainability)
Full scores for risk and opportunity management, inspection and auditing, management system accreditation
Procurement and Purchasing
Level 2 achieved for all credits
Suppliers sustainability performance is monitoring and managed throughout delivery of their contract
The following water saving opportunities were implemented:
Water efficient devices in permanent and temporary facilities
Collection of rainfall from depot roof
Recycled water in the wash-plant
Stormwater harvesting – i.e. rainwater tanks on crib huts
- Sourcing non-potable water for dust suppression and compaction activities
Level 3 achieved for Mat-1
55% improvement in embodied carbon based on a reference design
104,000 tCO2e reduced through embodied carbon reductions
A significant reduction in materials lifecycle was achieved through design development phase and modified construction practices. Examples include:
Significant design changes
Reuse of materials on-site
Reduction in slab thickness for the track.
The use of exchangeable switch blades and track curves, which limits the amount of excavation and replacement concrete required
Relining pipes which are of sufficient capacity for future demands
Use of direction drilling/pipe jacking and other less intrusive methods of installing pipes – more than 2.5km completed without need to large excavations.
Discharges to Air, Land & Water
Level 3 achieved for all credits
No major exceedances of water quality, noise, vibration or air quality monitoring goals.
>75% of the land used for the project is previously disturbed.
The project footprint is primarily within an existing road corridor, and as such 87% of the project land has been assessed as previously disturbed.
Mapping confirmed that the total construction footprint was 647,353m2, of which 81,889m2 was classified s undisturbed.
Achieved very high diversion rates from landfill, including,
all spoil from the project is either reused on site or is trucked offsite to a recycling site for reuse or reprocessing. Achieved a 100% recycling rate.
The project achieved a recycling rate of 89.7% across the board for inert and non hazardous wastes.
Community Health, Well-being and Safety
The project set a stretch target of recruiting 82.5% of project personnel from the extended Gold Coast area (including Scenic Rim, Brisbane City, Redlands, Logan and Ipswich). The project also set a target of providing 188,000 hours of deemed training to green labour and upskilling of local workforce. This target included providing 50 traineeships, apprenticeships and or cadetships (see Hea-1be).
Regular surveys confirm that over 96% of project employees were recruited from within the extended Gold Coast Area, with over 80% living within the Gold Coast City Council area.
QLD first initiative to install a new track switching system that makes the process easier and allows for reduced time, cost and distruption during maintenance on the track switches. Using this system, the switch blade can be replaced from the top of rail, therefore there is no need to dig up the embedded concrete around the track switch to replace wearing parts.