Waste

• 80% Beneficial reuse or recycling of all usable spoil (excluding contaminated materials e.g. ACM)
• 80% Construction and demolition waste (inert and non-hazardous) reused or recycled
• 40-60% of office waste diverted from landfill.

Construction and demolition waste represent one third of all waste sent to landfill in NSW. JHCPB’s efforts focus on reducing the Project’s contribution to landfill by recovering and reusing waste materials (on site and off site) as much as practicable.

From the commencement of construction to March 2023, JHCPB has diverted 73,921.74m3 of construction waste from landfill (93%) and reused 9,115,290 tonnes of spoil (98%). Project spoil has been beneficially reused on site for civil works and at various approved offsite reuse sites, such as the Northern Roads Project and Western Sydney Airport. Annual waste to destination audits are also conducted for all waste streams.

JHCPB is currently exceeding the 80% diversion target for construction and demolition waste. The subcontractor’s performance is tracked monthly. Annual waste to destination audits for construction waste are also conducted during construction.

JHCPB are currently exceeding both construction and spoil diversion targets but the Project’s office waste diversion is performing under the target of (40%- 60%) sitting at 33%. However, several measures to improve office waste diversion have been implemented in the review period, including:

• Setting up sites with co-mingled and paper/cardboard bins additional to general waste, this has helped provide clear waste segregation for people to follow. This was set up in the following locations:
  • The offices located on top of the M5 C&C supporting the tunnel fit out team – added grasshopper to this scope of recycling to boost diversion rates.
  • JHCPB Training Academy in Homebush
  • Western Harbour Tunnel – Southern Tunnelling Works offices
• PPE recycling was conducted for the demobilisation of the Gordon Street Megaplex. The streams that were collected for this was hard hats, steel capped work boots and Hi-Vis clothing. In total 300kg was diverted from landfill.

Mask recycling has been implemented outside the C&C of the WHT STW and M5 offices, this was implemented due to disposable masks being the largest waste stream of PPE on the project. This has had good success with low levels of contamination and compliance from the team

Spoil Diversion Performance

 Landfill diversion rates for construction waste

Office Waste Diversion