A study will be commissioned to investigate how the Storm King Dam wall would stand up to a one-in-a-thousand-year storm.
A study will be commissioned to investigate how the Storm King Dam wall would stand up to a one-in-a-thousand-year storm.

$50k report for Storm King Dam

FIFTY thousand dollars is set to be allocated in this year’s Southern Downs Regional Council budget to investigate “potential problems with the stability of Storm King Dam”.

But before you hit the panic buttons and start preparing for the dam wall to collapse, never fear.

Council engineering services director Peter See said council was required by the State Government to assess all existing dams to see how they would behave in a maximum or one-in-a-thousand-year storm.

Mr See said there were no issues with the structural integrity of the Storm King Dam wall; they just did not have the building records of how the wall was constructed.

He said council would form a commission to conduct an investigation to see exactly how the dam wall was fastened to the rock.

“In the case of Storm King Dam, when it was built, there is no data as to how the concrete shell interacts with the underlying rock,” Mr See said.

“We will do an assessment on what the interface is like, and there is a chance that we might have to put in some rock anchors.

“We would have to drill in through the wall into the underlying rock and then put pre-stressing cables in ... it would just reinforce the toe of the dam.”

Mr See said not having the records of how the dam wall was constructed was not uncommon.

“It’s just one of the things ... we’re not concerned about (the dam wall); we have no doubts that the dam is quite safe,” he said.

Mr See said council was also conducting a study on the other council-owned dam in the region, Connolly Dam, to investigate the prospect of increasing the spillway.

He said if the spillway was to be increased, there would be nine properties potentially affected.

“If the dam was to breach it would be limited to nine properties downstream,” Mr See said.



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