STRONGER TOGETHER - SINCE 1886
CIVIL CONSTRUCTION
ALKIMOS DESALINATION PLANT - SEAWATER TUNNEL The AWU has stamped our mark as the Civil Construction and Tunnelling union in WA once again after signing the Alkimos Seawater Alliance Inshore Tunnel Enterprise Bargaining Agreement with Acciona in early 2025. AWU members build our country and our members building the Seawater tunnel as part of the new Desalination Plant are no different. The largest steel water main pipeline ever made in Western Australia, manufactured in Kwinana with a diameter of 1.6 metres will form the majority of a 33.5 kilometre underground water main connecting the Alkimos Seawater Desalination Plant to Water Corporation’s Wanneroo Reservoir.
The pipeline is expected to be completed and commissioned by 2028. The project is expected to produce a whopping 150 million litres of drinking water per day or 50 billion litres annually. Your union currently represents hundreds of members on the site with 1,300 jobs expected over the lifetime of the project. Our Organising team lead by Andy Hacking and Dan McCaig have hit the tunnel project hard fighting for our members’ interests. Remember, if you are working on a Civil Construction project in Western Australia the AWU is your union.
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