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2019-12-16 GC Agenda - Item 5 - Attachment 1 - Noosa Spit Shoreline Erosion Management Plan-Part 1
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Log in to see the plans as drawnNoosa Spit SEMP Final Report ii
Contents
Contents
Executive Summary i
1 Introduction 1
2 Noosa Spit Shoreline Erosion 3
2.1 Introduction 3
2.2 Previous Assessments 3
2.3 Recent Observations 4
2.4 Current Shoreline Erosion Strategy 13
2.4.1 Recent Shoreline Recession 16
2.4.1.1 Movement of vegetated shoreline 16
2.4.1.2 Available Recreational Beach Width 19
2.4.1.3 Boat Wake 20
2.5 Potential Entrance Configurations for Further Assessment 21
3 Numerical Modelling of Entrance Configurations 23
3.1 Background 23
3.2 Waves (SWAN) 23
3.2.1 Nested Model Domain & Bathymetry 23
3.2.2 Model Configuration 23
3.2.3 Boundary Conditions 25
3.3 Hydrodynamics (TUFLOW FV) 25
3.3.1 Model Domain, Mesh & Bathymetry 25
3.3.2 Model Configuration 25
3.3.3 Boundary Conditions 26
3.4 Sediment Transport (TRANSPOR) 29
3.5 Numerical Model Calibration & Validation 29
3.5.1 Targeted Data Collection 29
3.5.2 Laguna Bay Waves 32
3.5.3 Laguna Bay Water Level & Currents 34
3.5.4 Noosa River Water Level 34
3.5.5 Noosa River Flow 38
3.6 Entrance Configuration Assessment 41
3.6.1 Impact to Water Level 47
3.6.2 Impact to Current Magnitude at Dog Beach 52
3.6.3 Assessment Summary 61
4 Shoreline Erosion Mitigation Options 62
G:\Admin\B23636.g.mpb.NoosaSpit_SEMP\R.B23636.001.02.SEMP_final.docx
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