At the commencement of the Kempsey CBD Floodplain Risk Management Study and Plan it was decided to convert Council’s existing flood model to a TUFLOW model. It was considered that TUFLOW would be a more appropriate tool considering its ability to easily model options such as levees. This report documents the updating of the Kempsey flood model to take account of new topographic data and improved modelling techniques. This report is a companion document to the Kempsey CBD Floodplain Risk Management Study (WMAwater, 2017) and should be read in conjunction with this report. The recommended floodplain risk management measures detailed in Kempsey CBD Floodplain Risk Management Study (WMAwater, 2017) were modelled using the hydraulic model described in this report.