Maybe if the river was kept clean from fallen trees, there would be less of a probability of flooding. There are some very large dams in the Victoria region that cause the flood waters to stay at flood stage longer.
Flooding is part of nature cleaning its veins. If you live on the river, get used to flooding, raise your house or move away from the river. The weather guessers don't know when it will happen again. They just know it will happen again. So get ready!