A massive concrete manufacturing facility is being built in South Australia to supply tunnel-lining segments on the River Torrens to Darlington Project
Construction is underway on the concrete manufacturing facility that will supply more than 55,000 tunnel-lining segments for South Australia’s non-stop South Road, as part of the River Torrens to Darlington Project (T2D).
The non-stop South Road will allow motorists to bypass 21 sets of traffic lights between the River Torrens and Darlington, saving up to 40 minutes of travel time in peak hour traffic.
The concrete slab that will form the base for the shed at the T2D precast concrete facility at Waterloo Corner is almost complete, while the first shed frames have also been raised.
A total of 16 pours are required to form the base of the shed, which will be 285m long and 25m wide at the facility which will produce the concrete segments that will line both sets of T2D tunnels.
An on-site concrete batch plant will supply 280,000 cubic metres of concrete required for the segments. Once manufactured, the segments will then be transported to the Tunnel Boring Machine launch areas.
There, they will be used to construct the tunnel sections of a non-stop South Road, with the segment erector inside the TBMs progressively installing the segments in rings to form the tunnel walls.
Each ring will be formed using 10 precast concrete segments, with each segment weighing up to 12 tonnes.
It is expected that at peak construction, 60 workers will be on site at the precast facility.
The precast facility is expected to start segment production in late 2025 with the first tunnel segment to be installed by mid-2026.
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