Duratec, the engineering, construction, and remediation contractor, through Duratec Ertech Joint Venture (DEJV), its 50:50 joint venture with Ertech, has been awarded a $281m contract for the infrastructure upgrades to support future submarine capability at HMAS Stirling on the Diamantina Wharf at Garden Island Western Australia.
Early on-site works, awarded under a separate contract valued at $9.2m, commenced on site in January 2026. This was undertaken alongside the early procurement of approximately $5m of long lead items, while contract design neared 100% completion and final design approval was granted.
This award of the main works contract, with a duration of approximately 24 months, marks the conclusion of the ECI Planning Phase and the DEJV will now transition into full delivery, taking the total contract value for the works to just under $300m.
The above project relates to major infrastructure upgrades in anticipation of the arrival of the rotational force from the United States and the United Kingdom under the AUKUS partnership.
Duratec Managing Director, Chris Oates, commented: “This award represents a significant milestone for Duratec and our joint venture partner Ertech – it marks the successful culmination of an expertly delivered ECI Planning Phase and reinforces the strength of the DEJV’s ECI approach on strategically important Defence infrastructure projects. Duratec is proud to support Australia’s future submarine capability and, through our long-standing relationship with the Department of Defence, to contribute to the timely and compliant delivery of these critical infrastructure upgrades at HMAS Stirling.”
