Brisbane River Backflow Valve Program near completion in Milton

Backflow valves are attached to stormwater systems and with the purpose of preventing rising river water backing up into local stormwater drains.

43 devices have been installed across Brisbane city since April 2013 to increase protection against future flood events. Brisbane City Council sped-up the program funding to see the program completed two years earlier than originally budgeted for at $7.5 million for the project. After a detailed design investigation, the cost rose to $10 million and after the year long program was fast-tracked, it is finally drawing to a close with the last and largest device being installed in Milton.

Lord Mayor Graham Quirk who inspected the Milton site recently has said “The backflow program is part of my commitment to delivering effective flood mitigation measures across the city to help reinforce Brisbane against natural disasters,” The 43 devices, will help protect an additional 1500 homes that were affected by the 2011 floods.

The Milton device alone has cost $3.1 million and is designed to protect approximately 452 local properties across Milton, Rosalie and Auchenflower, including Milton State School. It should withstand a seven metre water load with the Milton drain door constructed to manually slide and lock into place as the river level rises within approximately 15 minutes from activation.

Whilst Brisbane will never be completely flood-proof, strategies such as this can always give greater protection to local residents and business owners who suffered in 2011. In a previous blog about this program, Bees Nees asked what this project meant for local residents and the value of our Milton real estate? Had these devices been in place pre-2011, the damage caused in 2011 and 2013 would have been significantly less. Now that the devices are in place, real estate demand and prices could possibly improve as the risk of flooding is mitgated. Great news for Milton Property Owners!