Revised modelling shows only 15 homes and 4 business would have flooded at Goodna in 2011 if the Wivenhoe Dam had been differently managed, according to Ipswich councillor Paul Tully
600 homes and businesses were destroyed in Goodna when the Brisbane River peaked on 12 January 2011.
Cr Tully said a 2 metre reduction in the height of a Brisbane River flood at the Brisbane city gauge represented a 6 metre reduction upstream at Goodna.
"The official flood level at Goodna would have dropped from 16.4m to 10.4m.
"On those figures, only 15 homes and 4 business would have been flooded at Goodna.
"The average depth of water in those homes would have been less than half a metre."
Cr Tully said the Goodna town centre would not have flooded, nor would the Goodna RSL Services Club with 59,000 members, nor the 3 service stations, 4 banks and 2 hotels.
"Goodna would have been back to normal within 24 hours but now we are still facing years of heartbreak with destroyed homes, marriages and families.
"Sandbagging would have kept the flood out of the 15 homes which would have been only slightly affected - some by just 200mm.
"I am totally disgusted the Wivenhoe Dam engineers' main priority was to stop the flooding of low level bridges around Fernvale.
"They could have prevented this flood but instead focused on rural bridges and failed to take any heed of official weather forecasts.
"Anna Bligh and Stephen Robertson now have a lot to answer for to the people of Queensland over this catastrophe.
"They must have been asleep at the wheel in 2011 enjoying a long summer siesta to have allowed this to happen on their watch.
"Anna Bligh and Stephen Roberston must apologise to the people of southeast Queensland for allowing this tragedy to occur.
"This is the smoking gun against the previous government which sat back and allowed the dam to be mismanaged inflicting untold damage on the people of Brisbane and Ipswich.
"Campbell Newman now has the opportunity to right the wrongs of the past following the second anniversary of the flood this month."
Cr Tully has produced a map showing the extent of the 2011 flood at Goodna and what it would have been under the revised modelling.
The modelling is based on the height of each property above normal river level and the height of each home above ground level.
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