Joan was launched in May this year from the Arden Street site and its breakthrough at Parkville marked 1.4 km of tunnelling.
Design partner Weston Williamson and Partners shared a video of the breakthrough.
Weston Williamson and Partners is collaborating with Hassell and Rogers Stirk Harbour and Partners on the design of the Metro Tunnel stations.
For more information visit the Weston Williamson website.
This article was originally published on 9 September 2020.
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