Queensland's floods inquiry is expected to scrutinise conflicting flood event logs when it reopens on Thursday.
The logs detail the operation of Wivenhoe Dam on the weekend before Brisbane and Ipswich flooded in January last year.
The Australian newspaper on Tuesday said a flood event log, not previously made public by the Floods Commission of Inquiry, suggests Wivenhoe Dam was in the wrong water release strategy at a crucial time before it ran out of storage capacity.
The newspaper says the log, contained in a 471-page section of a sworn statement by dam operations manager Rob Drury, includes adverse references that are not in the "official" flood event log, a formal exhibit in the inquiry.
The entries obtained by the newspaper suggest the wrong strategy was in use on the weekend of January 8-9.
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Dam operators have insisted they were using the W3 water release strategy, which primarily aims to protect urban areas from flooding.
But the log cited by the paper says the dam was using the W1 strategy, designed to minimise disruption to rural areas, on the weekend before the two cities flooded.
The floods inquiry is due to reopen hearings on Thursday, after a series of reports in The Australian citing what it says is mounting evidence that the dam was mismanaged.
