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Engineers Abel Farrell and Rohan McKinnon

Flood protection for north-east Warrnambool

News Article Date: 
Monday, 5 November 2018

A new $3.5 million stormwater project will help protect homes from flooding in Warrnambool’s north-east.

Stormwater from a 24ha catchment leading up to Wanstead Street will be diverted to a series of water storages in the centre of the Warrnambool Racecourse.

The water will travel initially along 1800mm diameter pipes flowing into 2100mm pipe as more catchment is intercepted, all leading to a 20-megalitre storage basin on the racecourse.

The racecourse is on Crown land for which the Warrnambool Racing Club is the committee of management. The club has agreed to the retention basin being built on the area within the racecourse.

“This will involve excavating 30,000 cubic metres of earth which will be distributed elsewhere on the racecourse,” Director City Infrastructure Scott Cavanagh said.

“A smaller seven-megalitre basin will be constructed as part of the project and stormwater from this basin will be used to help irrigate the racecourse and its surrounds.

“The project will harvest up to 219 megalitres annually with overflow to be delivered to Russells Creek.”

The work – now under way - will be carried out by Warrnambool firm McKinnon Quarries and Civil and is funded entirely by Warrnambool City Council.

“It’s great to see this major infrastructure project – which has been considered since 2008 – come to fruition,” Mr Cavanagh said.

The pipeline will travel from Wanstead Street, along the reserve near Wavelinks Park then along Tozer Road.

The project will involve some minor traffic disruptions with the pipeline to cross McGregors Road and culverts to be upgraded along Tozer Road and Moore Street.

This stormwater harvesting project is part of a larger drainage project for north-east Warrnambool that includes the rehabilitation of the Simpson Street stormwater tunnel.

Work on the tunnel is expected to resume early next year. A 118m section of the tunnel was relined with concrete two years ago and a further 120m will be relined with a fibreglass reinforced plastic liner when conditions become suitable over summer.

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