North West Rail Link Early Works Stage 1a

Management Systems


The $8.3 billion North West Rail Link is Australia’s largest public transport infrastructure project currently under construction and a priority rail project for the NSW Government. The project will deliver eight new railway stations and 4,000 commuter car parking spaces to Sydney’s growing North West.

Site Investigation EMR role was to support the design development geotechnical site investigations that were required along the length of the project alignment. AQUAS provided environmental representative services to support NWRL Site Investigation due diligence activities.

Early Works EMR - The early works construction program includes:

  • Providing high-voltage (HV) power supplies to the major excavation worksites at Epping, Cherrybrook, Castle Hill, Showground and Bella Vista
  • Preparation of the major tunnelling sites for the tunnel boring machine
  • Temporary and permanent road upgrades for construction site access
  • The continued demolition of both residential and commercial properties along the rail corridor 
  • The diversion of utilities along the rail corridor and around the major construction worksites

AQUAS provided the environmental representative role to oversee the compliance of the early works on the Minister’s Conditions of Approval and regulatory legislations as well as the implementation of Constructions Environmental Management Plan and its sub-plans. Environmental challenges with regards to this project included heritage management (Work on the North West Rail Link has uncovered the ruins of an early 19th century Sydney inn), ecological management, community consultations and management, soil and water management (tunnelling and viaduct works), spoil management, air management and noise management.