[WATER OUR FOCUS]

Upper South Creek Recycled Water Pipelines

Delivering large-scale recycled water and brine pipeline infrastructure supporting Western Sydney’s growth corridor.
Sydney Water – Upper South Creek Advanced Water Recycling Centre
Western Sydney, New South Wales

Growth Corridor Water Infrastructure

[Project Background]

Infrastructure Supporting Western Sydney’s Growth

Rapid population growth across Western Sydney — driven by the Western Sydney International Airport and surrounding development areas — required new water infrastructure to support long-term supply and recycling capacity.

The Upper South Creek pipelines connect the Advanced Water Recycling Centre (AWRC) to the broader network, enabling distribution of high-quality recycled water while managing brine discharge infrastructure across the region.

[Scope Of Works]
Operating in Sensitive and Live environments

Construction of treated water and brine pipeline systems supporting the Upper South Creek Advanced Water Recycling Centre.

Installation of treated water and brine pipeline infrastructure across Western Sydney
Construction of valve sites, scour pits, air valve pits, and jetting pits
HDD, microtunnelling, and open trench installation works
Bulk earthworks, retaining walls, and associated civil infrastructure works
Project Technical Snapshot

Construction of large-diameter recycled water and brine pipelines across urban, rural and transport corridors.

5km OD914 MSCL Treated Water Pipeline
5km OD914 MSCL Treated Water Pipeline
Brine Pipeline Installed
7km DN375 PVC Brine Pipeline
Installation Methods
Open Trench, HDD and Micro-Tunnelling
[Outcome / Key Features]
Major Pipeline Infrastructure Delivered for Sydney Water
Outcome
  • Construction of 5km OD914 MSCL treated water pipeline supporting recycled water distribution
  • Installation of 7km DN375 PVC brine pipeline within the Upper South Creek network
  • Construction of valve sites including flow meter pits, control valve pits and associated pipework
  • Installation and commissioning of pipeline infrastructure including welding, inspections and testing
Key Features
  • Installation works undertaken across TfNSW road corridors, residential areas and farmland
  • Construction delivered within restricted 6-metre pipeline corridors requiring detailed methodology planning
  • Reinforced concrete encasement of pipelines at stormwater crossings
  • Construction of 16 cast-in-situ scour pits, 20 air valve pits and 4 jetting pits
  • Traffic management across residential corridors including school zones and road closures
  • Large-scale coordination with local councils, stakeholders and community groups
  • Six concurrent construction crews mobilised to maintain program delivery
[Environmental Responsibility]
Infrastructure supporting sustainable water recycling
The Upper South Creek pipeline network supports the delivery of advanced recycled water produced by the AWRC, enabling sustainable water reuse across Western Sydney while reducing reliance on traditional water sources.
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