Craigieburn Road Upgrade Project

The project used the purchase of offsets to achieved ‘no-net loss’ of biodiversity across the project. 

The project achieved a saving of 8,116 t CO2-e over the life of the Project which equals a saving of 30.1% through initiatives including: 

• Reduced plant & equipment hours 

• Reduced operational lighting 

• Orca Construction Solar Lighting towers 

• Barrier Plus Wayfinding Solar light towers 

• Lime stabilisation - reduced machine hrs 

• Design optimisation: Use of Type 11 in lieu of Type 2 pavings  

• Design optimisation - Ground beam elimination 

• Biodiesel & Ethanol use 

A total of 17 reduction initiatives were implemented, resulting in a 16.1% EnviroPoints reduction from base case scenario, and 8,695 tCO2e, the total tonnes CO2equivalent embodied emissions saved across the project life. This was achieved through the following initiatives: 

• Use of asphalt with higher % RAP 

• Use of Fibrecon Emesh in lieu of steel mesh reinforcement within footpaths and residential driveways at approved locations 

• Use of concrete mixes with higher % SCM (Portland cement reduction) 

• Use of StormPRO® pipes in lieu of reinforced concrete pipes in areas without heavy vehicle traffic 

• Design optimisation – Bebo Arch Retention and lane configuration at Aitken Creek- No longer need to build additional bridge to facilitate new lanes. 

• Design optimisation - deletion of retaining walls  

• Design optimisation – Zone 6 Omission of 4,600m2 Type 2 Pavement: Type 11 in lieu of Type 2 

• Design optimisation – Ground beam reduction  

• Reduced crushed rock quantities and re-use of existing Type A subbase through implementation of lime stabilisation 

• Reduction in concrete used through design optimisation of SUPs.  

• Use of Precast concrete pits with high %SCM 

• Use of recycled crush concrete instead of virgin crushed rock 

• Design optimisation median strips - Reduction in concrete quantities due to replacement with sand. 

• Power pole retention 

• Pavement depth reduction at Craigieburn Plaza 

• Stormwater drainage at Belsay 

• Drainage optimisation at Chinook Court 

Eight water reduction initiatives were implemented on the project through design and construction, resulting in the saving of 13,287.91kL - a 22% reduction in water use. 

The project used the purchase of offsets to achieved ‘no-net loss’ of biodiversity across the project. 

• Bingo Industries –Djurwa Pty Ltd, an Indigenous-owned joint venture between Yalagan Group and Bingo Industries have been engaged as the CRG Project’s waste disposal contractor. Evidence of their engagement is demonstrated in the example waste diversion reports used for monthly reporting 

• Downer – the Project has engaged Downer as the Project’s asphalt supplier to maximise RAP content allowable under current standards and guidelines  

• Fibercon – the use of Fibercon’s eMesh has been approved for use at certain locations along the alignment of the shared user path (SUP) in lieu of traditional steel reinforcement as seen in the Mat-1 CSF.   

• Hanson – Hanson has been engaged as the Project’s main concrete supplier. Hanson is assisting the Project meet its 30% Portland cement reduction target and overall material lifecycle impact reduction target under the Mat-1 credit. Evidence of their engagement is demonstrated in the Low Carbon Concrete Implementation Plan developed for the CRG Project  

• Mott MacDonald – the Project has engaged an independent sustainability auditor to monitor and review sustainability performance on the Craigieburn Road Upgrade Project as seen in the Man-3 CSF.  

• Edge Impact – the Project engaged consultants to support there is rating submission