WRM was commissioned by Narrabri Shire Council to prepare the Narrabri Floodplain Risk Management Study and Plan (FRMP) . The study included a supplementary Flood Study to update the flood modelling prepared in 2016 to be consistent with the latest revision of Australian Rainfall and Runoff and updated versions of modelling software. The existing flood risks confronting the study area were determined and the potential floodplain risk management and mitigation options that were available to reduce the future flood risk were evaluated. The mitigation and management measures consider the environmental, social, economic, planning and emergency management issues and constraints within the study area. Recommendations to reduce the flood hazard and risk to people and property in the existing community and to ensure future development is controlled in a manner consistent with the flood hazard and risk are also made.