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Workers fix a broken drainage pipe which caused a sinkhole to appear on Benara Rd.

Caversham sinkhole repaired

A SINKHOLE in Caversham caused by leaks from a drainage pipe has cost the City of Swan about $138,000 to have repaired.

City of Swan chief executive officer Mike Foley said the city first became aware of the sinkhole on February 20 and that repairs had been carried out by Interflow between March 8-16.

Interflow were engaged by the city to evaluate and repair the sinkhole after initial investigations showed a 900mm drainage pipe under Benara Rd – a creek crossing running almost at capacity with water and mud – had leaked at joint locations. 

An Interflow spokeswoman said the resulting sinkhole, which was getting bigger was a danger to pedestrian and vehicular traffic so required immediate attention.

The company’s solution was to clean, reline and grout the pipe with a 23m rib loc expanda liner, which after grouting and sealing, has given the drain another 50 plus years of service.

Interflow’s WA operations manager Stephen Thomson said the company had worked with the city’s engineering team to find a solution.

“We work on the prevention side too,” he said. 

“Interflow can check storm water culverts for potential problems and work towards asset management strategies to economically extend the life of underground assets.’’

By Anita McInnes

About Anita

Anita Mcinnes received a highly commended in the 2009 WA Media Awards suburban section for her reporting. Two of her sons were born at Swan District Hospital and for many years she was a partner in a small business, which operated in the Gingin-Muchea-Bullsbrook area. As a mature age student Anita studied journalism at Curtin University before working in Busselton, Dunsborough and Rockingham with West Regionals. She says the best part of her job is meeting eastern suburb residents and visiting the many attractions in the area.

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