Reference Documents - RAL24/0015

        2. MODELLING METHODOLOGY
        The Noosa River WBNM hydrologic model and TUFLOW hydraulic model were reviewed and modified for use in this assessment. Key
        hydraulic model details are provided in Table 2.1. Mapping of the model setup and validation is provided in Appendix B.

        TABLE 2.1: KEY MODELLING PARAMETERS


         Parameter                              Details                                      Basis / Comments

         Hydrologic Modelling Software          WBNM                                         Maintained from Noosa Urban model

         Hydraulic Modelling Software           TUFLOW 2023-03-AE_iSP HPC                    Modified from Build 2016-03-AA classic


         Cell Size                                                                           Reduced from 10.0 m in Noosa Urban
                                                5.0 m
                                                                                             model

                                                2016 LiDAR Survey
                                                Detailed Site Survey
         Topography
                                                Proposed                                              Order of priority

                                                Proposed Earthworks DEM

         Initial Water Levels                   -                                            Maintained from Noosa Urban model

                                                Roads                          0.025
                                                Rural Property                 0.060
                                                Urban property                 0.120
                                                Vegetation                     0.090         Maintained from Noosa Urban model
         Hydraulic Roughness
                                                Water                          0.030
                                                Mangroves                      0.120
                                                Ocean                          0.060
                                                Estuary Inlet                  0.040


         Model Extent                           The Noosa Urban model extent from Tewantin to
                                                                                              Maintained from Noosa Urban Model
                                                Noosa Heads

         Upstream Boundary Conditions           Noosa River and Lake Weyba
                                                                                             Maintained from Noosa Urban Model
         Source Area Inflows                    Inflow hydrographs from WBNM

                                                1% AEP + CC                    72hr
                                                1% AEP                         72hr          Maintained from Noosa Urban Model
         Design Events                          2% AEP                         72hr          Proposed works outside flood extent for
                                                5% AEP                         72hr          events more frequent than 10% AEP

                                                10% AEP                        72hr




Document21SetWARD   STREET, TEWANTIN I BNE00529_0001-REP-001-0
               ID: 23148188                                                                                                           4
Version: 1, Version Date: 30/07/2024