The Bruce Highway is cut at Caboolture, north of Brisbane, as residents are dealing with the worst flooding to strike the area since the 1974 floods.

Police have closed the highway.

The normally busy road is now a car park with a traffic jam stretching for kilometres.

At Mary Street in Caboolture, residents are fleeing their flooding homes.

Some are leaving with nothing more than they can carry - flood waters are rising so fast they cannot do anything else.