The metropolitan area is also traversed by several other rivers and creeks including the North Pine and South Pine rivers in the northern suburbs, which converge to form the Pine River estuary at Bramble Bay, the Caboolture River further north, the Logan and Albert rivers in the south-eastern suburbs, and tributaries of the Brisbane River including the Bremer River in the south-western suburbs, Breakfast Creek in the inner-north, Norman Creek in the inner-south, Oxley Creek in the south, Bulimba Creek in the inner south-east and Moggill Creek in the west. The city is on a low-lying floodplain,with the risk of flooding addressed by various state and local government regulations and plans.