A Brisbane accountant has demonstrated how a raised Borumba Dam would have saved Gympie.
A Brisbane accountant has demonstrated how a raised Borumba Dam would have saved Gympie. Tanya Easterby

'The dam they should build'...

A RAISED Borumba Dam could have saved Gympie businesses, farms and households from flood disaster, it was claimed yesterday.

Chartered accountant and Traveston Dam opponent John Hodgkinson said his proposal, linked to one first advanced by Imbil grazier Ron McMah, would also drought and floodproof Brisbane, without any release of stored water from the Wivenhoe and Somerset dams.

Mr Hodgkinson said he had done the sums to show an expanded Borumba Dam could hold 2,000,000Ml, more than Somerset and Wivenhoe put together.

It would ensure water security for south-east Queensland and have enough spare capacity to cut floodwater volumes in the Mary Valley by 31.5%.

That, he says, is the proportion of flood volume that enters the Mary from Yabba Creek, all of it from Borumba's catchment.

Mr Hodgkinson said his plan, which includes two-way pumping of water between the Brisbane River and Borumba basins, would only inundate land already owned by the government.

But his plan had not received honest, open-minded consideration when presented to the Bligh government as a Traveston alternative.

"They (government appointed engineers) attacked my proposal mainly by wrong presentation of matters not in my submission and (they were) subsequently proved wrong," he said.

"I explained all this in my submission to the flood inquiry (but it) was blocked from examining expansion of existing and new dams, which means south-east Queensland was firmly and deliberately set on the path of desalination and recycled water laid out by Premier Bligh after Traveston.

"My submission showed the largest flood in history, in 1893, could have been eliminated in Brisbane and mitigated in Ipswich and Gympie," he said.

Flood facts

Borumba catchment area - 468sq.km

Borumba average rainfall - 521mm

Mary catchment outside Borumba - 1261sq.km

Outside Borumba rainfall - 421mm

Borumba share of total flood volume - 31.5%

Outside Borumba - 68.5%

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