20220089 Jirrima Cr SWMP

Contents
Introduction..........................................................................................................................................4
Site Details ...........................................................................................................................................5
          2.1. Existing Site Description ...................................................................................................................... 5
          2.2. Existing Drainage Patterns .................................................................................................................. 6
          2.3. Proposed Development Drainage Patterns........................................................................................ 7

Flood Assessment ...............................................................................................................................9
          3.1. Available Data ...................................................................................................................................... 9
          3.2. Catchment Hydrology .......................................................................................................................... 9
          3.3. Catchment Hydraulics ....................................................................................................................... 10
          3.1. Flood modelling results ..................................................................................................................... 12
          3.1. Flood Hazard Overlay Code assessment ....................................................................................... 15

Stormwater Quality Management ...................................................................................................... 16
          4.1. Construction Stormwater Management ........................................................................................... 16
          4.1. Operational Stormwater Management ............................................................................................. 17

Conclusion ........................................................................................................................................ 18




Appendices
Appendix A
          Proposed Concept Plans

Appendix B
          DRAINS Modelling Results

Appendix C
          TUFLOW Modelling Flood Maps

Appendix D
          Ecosol Litter Basket Technical Specification

Appendix E
          Bioretention Garden Maintenance Checklist




Project number 20220089
File 20220089 Jirrima Cr SWMP.docx, Revision 0          2023-05-09
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