USC FloodStudyUpdate Report - Flipbook - Page 8
8.8.4.
Adopted Design Durations and Temporal Patterns ................................... 55
9.
DESIGN FLOOD EVENT RESULTS ........................................................................ 57
9.1.
Summary of Results ................................................................................. 57
9.2.
Hydraulic Hazard Categorisation .............................................................. 58
9.2.1. Floodplain Development Manual Hazard Categorisation .......................... 58
9.2.2. ARR 2019 Hazard Categorisation ............................................................. 59
9.3.
Hydraulic Categorisation ........................................................................... 60
9.4.
Flood Emergency Response Planning ...................................................... 61
9.4.1. Property Inundation .................................................................................. 61
9.4.2. Road Inundation ....................................................................................... 61
9.4.3. Classification of Communities ................................................................... 62
9.5.
Flood Planning Controls ........................................................................... 64
9.5.1. Flood Planning Area ................................................................................. 64
9.5.2. Flood Risk Precincts ................................................................................. 64
10.
SENSITIVITY ANALYSIS ......................................................................................... 66
10.1.
Climate Change ........................................................................................ 66
10.2.
Rainfall Losses ......................................................................................... 66
10.3.
............................................................................................. 67
10.4.
Blockage................................................................................................... 67
10.5.
Tailwater Level ......................................................................................... 68
10.6.
Floodplain Filling ....................................................................................... 68
10.7.
ARR Updates............................................................................................ 69
10.8.
Comparisons with Previous Studies .......................................................... 70
11.
FLOOD DAMAGE ASSESSMENT ........................................................................... 71
11.1.
Introduction ............................................................................................... 71
11.2.
Approach .................................................................................................. 72
11.2.1.
Property Database ................................................................................. 73
11.2.2.
Residential Damage .............................................................................. 73
11.2.3.
Non-residential Building Damage........................................................... 74
11.3.
Estimated Tangible Flood Damages ......................................................... 75
11.4.
Intangible Flood Damages ........................................................................ 76
11.5.
Differences Compared to FRMS&P .......................................................... 76
12.
REGIONAL FLOOD MODELLING FRAMEWORK................................................... 78
13.
REFERENCES ......................................................................................................... 79
Figures
Appendix A: Terminology and Glossary
Appendix B: Flood Mark Reports
Appendix C: Design Flood Event Mapping
Appendix D: Design Flood Event Graphs and Tables
Appendix E: Sensitivity Results
Appendix F: Regional Model Framework Guidelines
Appendix G: Public Exhibition Submissions