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Lord Mayor delivers more backflow devices

04 September, 2012

Lord Mayor delivers more backflow devices

Lord Mayor Graham Quirk has delivered on his promise to install backflow prevention devices in Brisbane’s CBD and Milton that will benefit about 120 properties impacted by last year’s flood.

The Lord Mayor also today announced the addition of another site - Kenny St, Fig Tree Pocket - to council’s $10 million rollout of backflow devices across Brisbane over the next four years.

Cr Quirk said the delivery of these seven backflow prevention devices in Milton and the CBD took the total number in Brisbane to about 50, with that number to rise to about 85 by the end of the term.

“There’s no doubt that dealing with the issue of backflow flooding is expensive, but we’re rolling up our sleeves and delivering on our promise to install these devices where they will have the most benefit,” Cr Quirk said.

“This is on top of undertaking strict planning changes such as raising building heights and requiring essential services such as generators to be built above the flood line instead of down in the basement to ensure whole buildings aren’t knocked out of service for months on end.”

Cr Quirk said a total of $885,000 had been spent installing the backflow prevention devices in Milton and the CBD.
• $580,000 for three backflow devices on Alice St, Margaret St and Charlotte St that will benefit 52 CBD buildings
• $305,000 for four backflow devices on the Cribb Street Drainage system that will benefit 67 properties in the Milton area.

Earlier this year Lord Mayor Graham Quirk also delivered three additional backflow prevention devices worth $345,000 on the Moray St drainage system at New Farm.

Cr Quirk has also committed $10 million to deliver a further 35 devices across 12 sites over the next four years in line with the recommendations of Council’s Backflow Feasibility Investigation Report.
These 12 sites will account for about 1500 properties and include the addition of Kenny St, Fig Tree Pocket, which will be funded within the $10 million.

“This four year program will reduce the risk of backflow flooding for about 80 per cent of properties impacted in 2011 once complete,” he said.

Cr Quirk said the next three areas scheduled to receive backflow prevention devices were at Castlemaine Street at Milton, Leybourne Street at Chelmer and Creek Street in the Brisbane CBD.

Backflow devices are attached to the end of stormwater systems, allowing water to exit the pipes but not re-enter. This stops water from washing back into the drain network and out onto local streets.

However Cr Quirk said that while backflow devices had their benefits, they were not a silver bullet.

“Backflow devices are not suitable in every case and will not stop a river flood like in 2011. This is about reducing any future impacts on those properties identified during the January flood as being susceptible to backflow flooding during more minor, regular flood events.”
[Ends] September 4 2012



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