Stage 2 includes connections from Stage 1 at Cove Street, Birchgrove, to the Warringah Freeway near North Sydney, tunnelling underneath Sydney Harbour, including complete tunnel fit-out. Click here to find out more about Stage 1.
Two types of tunnelling equipment will be used to build Stage 2: roadheaders between Cammeray and Waverton and Tunnel Boring Machines (TBMs) under the harbour from Birchgrove to Waverton.
Tunnelling on Western Harbour Tunnel Stage 2 started in November 2023 from the Cammeray temporary construction site, and tunnelling activities are progressing well.
In January 2024, the modification to the Western Harbour Tunnel Stage 2 project was approved by the Department of Planning, Housing and Infrastructure. This approval allows roadheader tunnelling to proceed south from the Ridge Street temporary construction site, toward Sydney Harbour.
Stage 2 roadheader tunnelling progresses from Ridge Street
In May 2024 the project reached another major milestone with the start of roadheader tunnel excavation at our Ridge Street temporary construction site located along the Warringah Freeway in North Sydney.
The first roadheader from Ridge Street will excavate the Falcon Street off ramp before transitioning into the mainline tunnels. Additional roadheaders will continue excavating the mainline tunnels towards Sydney Harbour.
Read our Ridge Street start of tunnelling notification for more information. To learn more about our construction activities and how we manage any potential impacts from our tunnelling activities, please refer to our Stage 2 fact sheets.
Tunnelling information sessions for the North Sydney community were held in person and online in May 2024. Please click here to view the presentation.
View our current construction and tunnelling activities by location.
Click here to find out more about the final tunnel alignment, depth and tunnel support facilities.
Learn about the Property Condition Survey process.
See our FAQs for answers to some common questions people ask.
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For all general enquiries:
1800 931 189 (ask for Western Harbour Tunnel Stage 2)