The primary objective of the Lower Ourimbah Creek Floodplain Risk Management Study Review is to determine appropriate floodplain management measures for the preparation of a cost-effective Floodplain Risk Management Plan for the study area. The study addresses flooding caused by runoff in the Ourimbah Creek and its tributaries and does not address flooding caused by elevated water levels in Tuggerah Lakes independent of river flooding. Floodplain management for Tuggerah Lakes flooding is to be addressed in a separate study, currently under development.