Skip to main content
Australasian Tunnelling Conference 2025
Alkimos Seawater Desalination Plant Tour
Technical Tour

Technical Tour

8:30 am

14 November 2025

Offsite

Session Description
Tour host: Jiang Aizezi

Departure from Perth Convention & Exhibition Centre at 8:30am with approximate arrival at 9:15am. Return transfers are included within the fee


Join us for an exclusive site visit to the Alkimos Seawater Desalination Plant, currently under construction by an alliance between Water Corporation, Acciona, and Jacobs. This vital facility is designed to produce 50 Gigalitres of water annually, with the potential to expand to 100 Gigalitres in the future, providing a sustainable solution to Perth’s growing water demand.

The visit will include an introduction to the project, followed by a tour of the construction site, where you’ll see the ongoing works on the world’s largest secant piled peanut shaft, which will combine a TBM launch with a permanent outfall chamber and intake pumping station. You’ll also explore the intake and outfall tunnels, which are being constructed to withstand significant internal pressures and will connect to intake and outfall structures on the seabed.

Expert guides will explain the desalination process, the engineering challenges of the project, and the extensive environmental considerations that went into siting the intakes and outfalls in this highly sensitive coastal location. You’ll also learn about the innovative design of the intake and outfall solutions on the seabed, which minimise the impact on local flora and fauna.

Itinerary:

8:30 - Bus departs from Perth Convention & Exhibition Centre

9:15 - Arrive at the project site office

9:15-9:45 - Site induction and introduction of the project

9:45-11:00 - Visit construction site, shaft and tunnel

11:30 - Bus departs from site office heading back to Perth Convention & Exhibition Centre

12:45 - Arrive at Perth Convention & Exhibition Centre

Important tour requirements:

  • Participants are required to be in full PPE: hard hat, safety glass, long sleeve shirt, long pants and safety boots.
Resources