Project goal:

Construct a new wastewater pipeline in Clarkson and Neerabup to extend the wastewater network in the northern corridor of metropolitan Perth.


Preliminary work in progress

Delivery Date:

2022 - 2023

What's happening?

To cater for growth and the disposal of wastewater flows in the northern corridor of metropolitan Perth, Water Corporation will construct the following work in Clarkson and Neerabup:

  • Installation of 2kms of new wastewater pipeline 2.2 metres in diameter
  • Installation of eight access chambers

Where is this work happening?

This work will take place at the intersection of Connolly Drive and Walyunga Boulevard, through the Clarkson TAFE car park, towards Harmony Avenue, south along Hannaford Avenue, across Homestead Park, east along La Mirada Avenue, under the Mitchell Freeway and east along Hall Road in Neerabup.

Proposed route for the Clarkson wastewater pipeline

Once complete, the pipeline will play a vital role in transferring wastewater flows from multiple wastewater pump stations to the Alkimos Wastewater Treatment Plant.

Project timeline

2017: Commenced early investigation works for pre-design and started working closely with project key stakeholders including the City of Wanneroo.

2018: Completed draft design and started the formal approvals processes including in consultation with Department of Water and Environmental Regulations.

2019: Impacted customers had the opportunity to provide comment on the project. The public comment period was open from 20 March to 12 April 2019. See the notice of proposal document on this page for more information. 

2021: Contract has been awarded to Rob Carr and preliminary work is in progress. The project design is currently being finalised.

Construction work is estimated to start in early 2022 and is expected to take about 12-18 months to complete.

Who can I contact?

For more information, please contact Community Engagement Senior Advisor, Amy Wright at or on (08) 9420 2130 during office hours. 

Contact us

Amy Wright - Community Engagement Senior Advisor

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