Stage 2 includes connections from Stage 1 at Cove Street, Birchgrove, to the Warringah Freeway near North Sydney, tunnelling underneath Sydney Harbour and 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 Waverton to Birchgrove.
Stage 2 roadheader tunnelling from Cammeray begins
In late November 2023 the project reached a major milestone with the start of roadheader tunnel excavation on the north side of the Harbour at Cammeray.
The first roadheader will excavate a temporary access tunnel from the Cammeray temporary construction site underneath road reserve towards the Warringah Freeway, where it will start excavating the mainline tunnels, travelling south underneath the Warringah Freeway towards our Ridge Street temporary construction site.
Read our 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.
Online information session - Thursday 16 November 2023
We held an online information session on Thursday 16 November where project representatives shared a presentation on roadheader tunnelling and answered questions from the community.
A recording of this session is available to view by clicking on the button below. Further community information sessions will be held before tunnelling commences in North Sydney.
View a recording of the session here.
View our current construction and tunnelling activities by location.
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)