New water main coming for St Agnes

01-12-2017

New water main coming for St Agnes

SA Water will replace around 297 metres of water main along Tolley Road in St Agnes from mid-December to reduce the impact of water main breaks on its customers and the area's road users.

The upgrade is part of an ongoing program that will see $137 million invested to replace around 375 kilometres of water mains across South Australia between 2016 and 2020.

SA Water's General Manager of Asset Operations and Delivery Mark Gobbie said this section of pipe was prioritised for replacement after recent breaks or leaks.

"Water main incidents are typically triggered by environmental factors like weather and soil movement, so we can't completely stop them from happening, but we're fully committed to reducing their incidence and impact on our customers," Mark said.

"The new pipe will be made of PVC, which is flexible and more resistant to the movement caused by the area’s reactive soils than existing, rigid cast iron and fibro-cement pipes."

Both the old and new water mains have an expected lifespan of 100 years. More than half of SA Water’s 27,000 kilometre network of pipes are under 50 years old, which is relatively young by urban water industry standards.

Work to install the new water main would typically take place between 7am and 5pm from Monday to Saturday and is anticipated to take around five weeks to complete.

"In this instance, the new pipe will be laid using a combination of traditional trenching techniques and directional drilling to reduce excavation and the impact on road users with some temporary traffic diversions in place from time to time," Mark said.

"Please be alert to changed traffic conditions in the area, which will be in place for the safety of road users, pedestrians and our workers.

"Residents of Tolley Road and the surrounding streets should also keep an eye on their letterbox for advanced notice of any temporary water supply outages that will be needed when the old and new pipes are cut over."

For more information on when and where water mains are being renewed across the state, as well as details on existing pipes, take a look at the interactive map available on the SA Water website.

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