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Interflow wins NSW Excellence in Concrete Award

Award Ceremony generic image

Interflow has received the New South Wales Excellence in Concrete Award from the Concrete Institute of Australia, alongside partners Sydney Water, Metrocorp Technologies and SASTTI.

Interflow General Manager Paul Everett accepted the award, acknowledging the efforts of the joint venture (JV) partners. 

“Along with Sydney Water and the Sewer Assessment & Trenchless Technology Specialists SASTTI JV, we have come first in the NSW ‘Repair, Restoration and Retrofit’ category for our outstanding work improving the almost century-old Northern Suburbs Ocean Outfall Sewer (NSOOS).” 

In late 2016, Sydney Water engaged delivery partners SASTTI JV, Interflow and Metrocorp, to desilt and rehabilitate the degrading 90-year-old tunnel with the goal of returning the NSOOS to its full operational capacity and extend asset life by 50 more years. 

The NSOOS delivers wastewater services to 1.7 million people across Sydney’s Western and Northern suburbs, servicing 416 km2 and collecting 25 per cent of total sewage across the Sydney Basin. 

All works in the NSOOS occurred in a live sewer with continuous flows between 800 to 1,300 mm deep without impacting services. 

“Side by side with Metrocorp since June 2017, we enter Sydney’s second largest sewer each weekday, using modern equipment and work methods to ensure high productivity and a safe work environment for our crews,” said Mr Everett. 

Metrocorp’s Managing Director Paul Smith added that desalting debris from the tunnel and reinstating the infrastructure required a mammoth effort from the teams. 

“Our crews are deep underground on the Lower North Shore in a workplace that is completely alien to most people, and consistently do an outstanding job working in an extremely high-risk environment. 

“This industry excellence award would not have been possible but for the sustained efforts, exceptional hard work and dedication of sewer crews, the above ground delivery team, and management,” Mr Smith said. 

Sydney Water’s Senior Project Manager Paul Denyer said it is a huge achievement for the partnership to be recognised with the award. 

“There is real innovation in successfully being able to do this work in an extremely challenging ‘live flows’, which delivers great outcomes for our Northern Sydney customers and our iconic harbour,” said Mr Denyer. 

For more information visit the Interflow website. 

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