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Attachment 5A - Noosa Landfill RRA Flood Assessment
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Noosa Landfill RRA Flood Assessment
TABLE OF CONTENTS
1 INTRODUCTION ............................................................................................................................................... 1
2 AVAILABLE DATA ............................................................................................................................................. 2
3 BASE CASE MODELLING ................................................................................................................................... 3
3.1 HYDRAULIC MODEL SOFTWARE ............................................................................................................................. 3
3.2 TOPOGRAPHY ..................................................................................................................................................... 3
3.3 STRUCTURES ...................................................................................................................................................... 4
3.4 HYDRAULIC ROUGHNESS....................................................................................................................................... 5
3.5 DESIGN RAINFALL ................................................................................................................................................ 6
4 VALIDATION .................................................................................................................................................... 7
5 PROPOSED CASE MODELLING .......................................................................................................................... 8
6 RESULTS ......................................................................................................................................................... 10
7 ADVICE RELATING TO FUTURE PLANNING AND DESIGN ................................................................................. 12
8 CONCLUSIONS ............................................................................................................................................... 13
9 QUALIFICATIONS & LIMITATIONS .................................................................................................................. 14
10 REFERENCES .................................................................................................................................................. 15
List of Appendices
Appendix A Rational Method and Design Rainfall
Appendix B Base Case Flood Mapping
Appendix C Proposed Case Flood Mapping
Appendix D Peak Flood Level Impact Mapping
J00352R1V2 iii
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