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| Brisbane River Flood 2011 Goodna Railway Station 12 January 2011 looking east towards Gailes |
Brisbane-based DHI Water and Environment Pty Ltd has
delivered an 11th hour written submission challenging the report of Sydney-based
hydrologist Mark Babister, and which suggests dam engineers were
under-qualified.
DHI Australia developed the software model used for
hydrology modelling put before the inquiry but now says the modelling was
flawed.
“We do not believe the model as developed can be used in a
reliable and transparent way to assess the impact of flooding in the Brisbane
River,” the firm said in its submission.
“The model has been developed in a way that is not
physically realistic and does not correctly represent the river hydraulics of
the Brisbane River.”
The firm says the software is not at fault but the manner in
which the Brisbane River was presented in the model was.
The submission also said that dam engineers in charge of the
floods operations were required by the manual to have experience in hydrology ,
which it said was not enough.
“The manual should also require that engineers have suitable
and extensive experience in hydraulics and applied river hydraulics.”
Radio talkshow host Gary Hardgrave has meanwhile accused two
north Queensland councils of refusing to release a report of one of its
emergency response workers compiled while working on the Lockyer Valley flood
recovery.
The former federal minister said the Cassowary Coast
Regional Council and Cairns City Council had not made reports into the Murphy’s
Creek, Grantham and Lockyer Valley floods available to the flood inquiry.
15.2.12
