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Water upgrades and renewal projects a priority for SA

Reference designs released for T2D Project

In February 2022, SA Water began a major upgrade of the Morgan to Whyalla pipeline. This renewal is part of SA Water’s four-year, $1.6 billion program to sustain and enhance its water network.

SA Water has also finalised the location of a new desalinisation plant at Billy Lights Point and commenced major water main upgrades across several regional hubs.

Elsewhere, works on the Torrens to Darlington (T2D) Project is a 10.5 km north-south corridor have commenced and is expected to be completed by 2030.

New water mains for regional SA

Water main upgrades are taking place across regional South Australia as part of the state’s four-year, $155 million investment in its management program. 

Works are scheduled to take place in major regional hubs including Gawler, Loxton, Port Lincoln and Port Pirie. 

All will receive a share of around 47,000 m in new water main, set to be installed over the next 12 months. 

SA Water General Manager of Sustainable Infrastructure Amanda Lewry said the program builds on the 31,000 m of water main upgraded across regional areas during 2020-21.

“Improving our services isn’t just about delivering good quality drinking water, it’s about maintaining the system that delivers it, to reduce the frequency of water main leaks and breaks and their potential impact on our customers,” she said. 

The water main upgrades will ensure local residents and businesses can continue to access water services, sustaining wellbeing and economic growth. 

Enabling works underway on T2D Project

Works have commenced on the final piece of the most significant infrastructure project in South Australia.

The Torrens to Darlington (T2D) Project is a 10.5 km north-south corridor that will complete the 78 km non-stop connection between Gawler and Old Noarlunga. Jointly funded by the Australian and SA Governments, the project is estimated to reach $9.9 billion. 

A hybrid option will be used to deliver the project, using a combination of tunnels, lowered and ground-level motorways, as well as overpasses and underpasses at key intersections. 

Stage One is construction of the Southern Tunnel between Anzac Highway and Darlington, and Stage Two will be the Airport Link and Northern Tunnel between the River Torrens and Anzac Highway.

When complete, around 60 per cent of the T2D Project will be comprised of underground tunnels.

SA Minister for Infrastructure and Transport Corey Wingard said the T2D project will support more than 4,500 jobs.  

SA Water’s new desalination plant

SA Water has selected Billy Lights Point as the new preferred location for a planned desalination plant. 

The plant will provide a reliable, climate-independent drinking water source to supplement existing groundwater supplies. 

It will prove critical to maintaining a long-term supply of safe, clean drinking water for 35,000 SA Water customers on the Eyre Peninsula.  

The plant will draw a total of up to 11.3 GL of water from the ocean each year. It will initially be designed to a four GL per year capacity, with marine and underground pipework designed to provide for an additional four GL per year.

Subject to required approvals, first water is expected to be delivered by the end of 2023.

SA Water to begin 34 km renewal project

SA Water is setting up for the major renewal of 34 km of pipeline from Morgan to Whyalla, in South Australia.

Renewal of the Morgan to Whyalla Pipeline includes sections in Burra, Lindley and Winninowie, and is part of the utility’s $62 million investment in regional water infrastructure. 

The pipeline has serviced the community with drinking water from the Morgan Water Treatment Plant in Riverland for early 80 years. 

SA Water’s General Manager of Sustainable Infrastructure Amanda Lewry said new sections of pipeline will be constructed in parallel to the existing infrastructure, to minimise interruption to customers’ water supply.

“Our Morgan to Whyalla Pipeline provides safe, clean water to customers throughout regional South Australia and many large businesses depend on a reliable supply to enable their processes, and by duplicating sections of the pipeline, we’re able to keep the water flowing during this important project,” Lewry said.

This article featured in the June edition of Trenchless Australasia. 

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