Experts are calling for greater preparation from Australian authorities amid concerns the massive release of water from the Townsville Ross River dam has contributed to this week’s extensive flooding.

Queensland premier Annastacia Palaszczuk says the floodgates had to be opened “to make sure the water had somewhere to go” just before the dam level peaked at 42.97m, in line with a current management plan.

Residents have expressed anger that water was allowed to build for so long rather than be released steadily during the previous week of heavy rain.