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Major earthworks

Major earthworks

The Major Earthworks contract was awarded to CPB Contractors and Lend LeaseJoint Venture (CPBLLJV) in August2019.On 9 September 2020 Acciona completed the acquisition of Lendlease Engineering and as such the Major Earthworks Contractor is now referred to as CPB Contractors and Acciona (CPBACC JV)

The major earthworks stage involves significant design and construction responsibilities, including moving around 25 million cubic meters of earth to support construction of the major elements of the airport, such as the runway and terminal. 

WSA and its contractors are committed to keeping the community and other stakeholders informed about the earthworks project as it progresses. We welcome your feedback on this project and our other activities. Please make contact with our community team as per the contact details below.


What's happening?


August 2022



Over the past few months, the following progress has been achieved:

  • Relocated site offices to the southwestern end of the site, unlocking the remaining parcel of earthworks to be completed 
  • Relocated the Badgerys Creek Road and Pitt Street round-a-bout and added an additional 'leg' to create a new site access

  • Placed over 2.4 million cubic metres of imported sandstone from tunnelling projects across Sydney to prepare the foundation of the site 

  • Completed 48% of permanent landscaping 

  • Completed over 1.8 million square metres of spray seal on the runway and taxiways ready for the Airside Civil and Pavements team to begin asphalt and concrete paving over the top later this year

  • Installed over 22 kilometres of internal fencing to separate the different work packages 



Ongoing construction activities include:

  • Importation of recycled sandstone material. This material is sourced from the WestConnex and Sydney Metro Projects and is repurposed across the site in a sustainability partnership between the projects. The high-quality sandstone is used as a supportive layer under the runway and taxiways 
  • Water treatment and water discharging activities. Excess rainwater captured in one of fifteen temporary water basins located around the site is treated and discharged off site. Where possible the captured water is used for dust suppression on the site.

  • Major earthworks across the Airport site. This involves taking earth from the peaks to fill the low points to level the site ready for construction

  • Installation of permanent airport drainage across the site 

  • Ongoing surveying of site is undertaken to ensure each layer of earth is at the correct level 

  • Permanent landscaping - topsoil stockpiled in the early stages of the Major Earthworks project is now being respread around different parts of the project, which will form the base to grow vegetation 

  • Heavy machinery maintenance is carried out in two workshops, as well as in the field around the site



Major earthworks notifications

Badgerys Creek Road 56 hour Road Closure Notification - May 2022

Night Work - Badgerys Creek Road Closure Notification - April 2022

Adams Road Closure Notification - March 2022


Construction notifications

Airport Construction Update - June 2022

Airport Construction Update - March 2022

Airport Construction Update - December 2021

Dust Mitigation Fact Sheet - November 2021

Construction work hours

Standard work hours:

  • Monday to Friday: 7am - 6pm
  • Saturday: 8am - 1pm


Out of hours (OOH) work: We will consult and notify impacted residents prior to working outside of standard construction hours.


Contact details  

If you have any questions, or would like to provide feedback about the works, please contact the Community Engagement team: 

  • 1800 972 972  

For any procurement enquiries, please contact CPB Acciona Joint Venture: