The FMP was developed on the basis of a detailed technical analysis of flood flow and in accordance with the NSW Government’s Floodplain Development Manual (2005). The FMP is the outcome of a floodplain management process that included input from affected stakeholders. In formulating the FMP a detailed evaluation of factors that affect, and are affected by, the use of flood prone land was undertaken. This included consideration of hydraulic, environmental, cultural and socio-economic factors. The FMP has the following aims:

• Provide unobstructed flowpaths that will improve the current drainage of the floodplain system and allow for the orderly passage of flood flows.
• Balance the expressed requirements of landholders with the requirement to minimise the impact of floodplain development on natural flood flow patterns and ecological functions.

The primary objectives for the Warrah Creek FMP are to:

• reduce the impact of flooding and flood liability on individual owners and occupiers of flood prone property, and reduce private and public losses resulting from floods, utilising ecologically positive methods wherever possible
• coordinate any floodplain development in order to minimise adverse changes to flood flow patterns
• increase the sustainable social, economic and ecological benefits of using the floodplain
• improve and maintain the diversity and well being of native riverine and floodplain ecosystems that depend on flood inundation
• take into account the cumulative impact on flooding behaviour of individual developments.