Wingham is located approximately 45 kilometres upstream along the Manning River at the confluence of Cedar Party Creek. Due to the importance of the Manning River as a transport route, Wingham was established at the furthest point supply boats could reach up the river and therefore became the region's major port. A large portion of Wingham is elevated high above the floodplain; however, some portions, including Wingham peninsula, consist of undulating river terrace at a general elevation of less than 12 m AHD.

The purpose of this Flood Study is to develop a sophisticated, calibrated 2D hydraulic model that will accurately simulate flooding in the region of Wingham. This requires a hydrological analysis of rainfall over the Cedar Party Creek catchment in order to produce the necessary hydrograph inputs for Stony and Cedar Party Creek. The flood study was undertaken in two parts; a hydrologic and a hydraulic analysis.

The broad aim of the Wingham Flood Study is to provide comprehensive technical information on flood behaviour in terms of levels, velocities and extents for floods up to and including the Probable Maximum Flow. This constitutes the major technical foundation on which the Wingham Floodplain Risk Management Study and Plan are based. In this way, the flood study will provide hydraulic categories, hazards and damage assessments within Wingham.