About the project

Western Sydney International (Nancy-Bird Walton) Airport will become  Sydney’s second airport, located within the suburb of  Badgerys Creek. The airport is planned to have 24-hour and curfew-free operations, in contrast to the existing  Sydney (Kingsford Smith) Airport, which has reached capacity due to a legislated curfew and flight caps. The first stage of construction on the new airport began on 24 September 2018, which is expected to be complete and open by December 2026. The Bulk Earth Works and the design is the responsibility of the joint venture between CPB Contractors and Acciona (CPBACC JV).

The role of CPBACC in the overall project is the design and construction of the Bulk Earthwork Project involving:

  • 24million m3 of earthworks (Cut to Fill with 4,000,000 of imported sandstone)
  • Subgrade improvement Layer of 1770mm thick CBR10+ Sandstone
  • 8kms of Truck Drainage ranging from 1800-1200 RCBC to 1200Dia Class 6 pipe culverts
  • 50km of open swale drains
  • 4 large retention Basin on 120,000m3 capacity
  • 8 Bioretention basinD&C of 600,000m3 contamination Containment Cell
  • Design of a second of 250,000m3 contamination Containment Cell
  • Landscaping to 150Ha
  • Site Access Rd