Rozelle Interchange — Project Film

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"The steel becomes a sort of line drawing between these elements... how do we change this large infrastructure into an artwork, into something that is looking like a ruinous form, or something that has been taken over by nature."

Rozelle Interchange transforms three monolithic concrete ventilation stacks within Sydney's WestConnex network through an interweaving structural steel form — a technically complex public artwork commissioned by Transport for NSW through the John Holland/CPB delivery consortium.

The form is derived from mappings of the historical, current, and envisioned future ecologies of the Rozelle and Iron Cove area. Patterns of steel extend living systems as bridge forms above pedestrians and cyclists, integrating biophilic green-wall modules and modulated zinc panelling into the surrounding Rozelle parklands — transforming infrastructure into a potential habitat for urban biodiversity.

The project was five years in the making. A computational workflow — developed with Bollinger+Grohmann, bim.GROUP and fabricator TSS Engineering — connected digital modelling directly to fabrication, ensuring every component was deployed exactly as designed.

In 2025 the Rozelle Interchange digital archive was acquired by the Powerhouse Museum, Sydney.

Awards - 2025 Australian Institute of Architects Urban Design Award, 2025 Australian Steel Institute National Steel Excellence Award

Project Team Studio Chris Fox: Chris Fox, Tommaso Pagani, Simon Giang, Srujan Vichare, Yuxiao Wang, Justin van Ryneveld, Gabriele Ulacco. Engineered by Bollinger+Grohmann. Photography: Josh Raymond.