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Client
CPB/Downer JV
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Location
North Sydney, NSW
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Dates:
Nov 22 – current
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Products supplied
Precast Parapets
Transfloor Slab
2350 m2
Transfloor Slabs
303 units
Precast Parapets
Project Overview
The Western Harbour Tunnel and Warringah Freeway Upgrade is a transformative infrastructure initiative aimed at enhancing Sydney’s transport network. This project is designed to facilitate easier, faster, and safer travel around Sydney by creating a western bypass of the Sydney CBD. It aims to alleviate congestion on critical corridors such as the Sydney Harbour Bridge, Sydney Harbour Tunnel, Anzac Bridge, and Western Distributor, thereby improving transport capacity in and around Sydney Harbour.
Commencing in 2022, this extensive project is expected to span five years, contributing significantly to the city’s transport infrastructure.
Scope
The project encompasses a comprehensive upgrade of approximately four kilometres of the Warringah Freeway, stretching from High Street in North Sydney to Willoughby Road in Naremburn. A key component of this upgrade involves the supply and installation of precast concrete elements, including parapets, to enhance the freeway’s safety and functionality. Ozcast was tasked with producing and delivering 50 precast parapets within an exceptionally tight timeframe of seven days, with an additional two days allocated for installation. This task was critical to the project’s progress, especially considering the construction delays and the need for shutdowns to facilitate installation.
Ozcast’s use of 3D modelling technology played a pivotal role in this process, enabling the team to identify and resolve potential issues before casting, thus ensuring a smoother and quicker installation on site.
Outcome
Despite facing construction delays and the challenges of a tight schedule, the Western Harbour Tunnel and Warringah Freeway Upgrade project has made significant strides, thanks in part to the innovative solutions employed by its contractors. Ozcast’s successful delivery and installation of the precast parapets prior to Christmas 2023 exemplify the project’s ability to overcome obstacles and maintain momentum. The use of 3D modelling technology not only expedited the production process but also minimised the risk of installation errors, showcasing the potential of modern construction techniques in large-scale infrastructure projects.
