The Billabong Creek floodplain management plan (FMP) was gazetted in July 2006. The FMP applies to the Billabong Creek floodplain between Walbundrie and downstream of Jerilderie, covering an area of about 2,500 km. The main objectives of the FMP are to:

• coordinate floodplain development in order to minimise adverse changes to surface flow patterns,
• develop and adopt floodplain management principles and development assessment criteria,
• increase the sustainable social, economic and ecological benefits of using the floodplain; and
• improve and maintain riverine and flood dependent ecosystems.

In order to achieve these objectives the Billabong Creek FMP specifies floodplain management principles, development assessment criteria, floodway network and remedial measures. All of these components guide the assessment process for flood control works, enable better management of the floodplain and provide remedial solutions to resolve hydraulic and environmental 'hotspot' areas. The FMP also includes a section on flood monitoring. Monitoring provides additional information to assess the impact of selected flood control works requiring further review and identifies in general any problem areas and whether any modifications or upgrades are required. The FMP stipulates that larger flood events (closer to the design flood) should be monitored in detail.