City of Darebin Storm and Flood Emergency Plan
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City of Darebin Storm and Flood Emergency Plan A Sub-Plan of the Municipal Emergency Management Plan For City of Darebin And VICSES Unit Northcote Version 5.0 April 2019 Table of Contents .......................................................................................................................................................... 1 DOCUMENT TRANSMITTAL FORM / AMENDMENT CERTIFICATE ............................................. VI LIST OF ABBREVIATIONS & ACRONYMS ..................................................................................... VII PART 1. INTRODUCTION ................................................................................................................ 8 1.1 MUNICIPAL ENDORSEMENT ..................................................................................................... 8 1.2 THE MUNICIPALITY .................................................................................................................. 8 1.3 PURPOSE AND SCOPE OF THIS STORM AND FLOOD EMERGENCY PLAN ..................................... 8 1.4 STORM AND FLOOD PLANNING WORKING GROUP (SFPWG) .................................................... 8 1.5 RESPONSIBILITY FOR PLANNING, REVIEW & MAINTENANCE OF THIS PLAN ................................. 9 PART 2. PREVENTION / PREPAREDNESS ARRANGEMENTS .................................................. 9 2.1 COMMUNITY AWARENESS FOR ALL TYPES OF FLOODING .......................................................... 9 2.2 STRUCTURAL FLOOD MITIGATION MEASURES .......................................................................... 9 2.3 NON-STRUCTURAL FLOOD MITIGATION MEASURES .................................................................. 9 PART 3. RESPONSE ARRANGEMENTS ..................................................................................... 11 3.1 INTRODUCTION ..................................................................................................................... 11 3.2 STRATEGIC CONTROL PRIORITIES ......................................................................................... 12 3.3 COMMAND, CONTROL, COORDINATION, CONSEQUENCES, COMMUNICATION AND COMMUNITY . 12 3.4 COMMUNITY INFORMATION AND WARNINGS ........................................................................... 16 3.5 MEDIA COMMUNICATION ....................................................................................................... 17 3.6 IMPACT ASSESSMENT ........................................................................................................... 17 3.7 PRELIMINARY DEPLOYMENTS ................................................................................................ 17 3.8 RESPONSE TO FLASH FLOODING ........................................................................................... 17 3.9 EVACUATION ........................................................................................................................ 18 3.10 FLOOD RESCUE .................................................................................................................... 18 3.11 AIRCRAFT MANAGEMENT ...................................................................................................... 19 3.12 RESUPPLY ............................................................................................................................ 19 3.13 ESSENTIAL COMMUNITY INFRASTRUCTURE AND PROPERTY PROTECTION ............................... 19 3.14 DISRUPTION TO SERVICES .................................................................................................... 20 3.15 ROAD CLOSURES ................................................................................................................. 20 3.16 DAM FAILURE ....................................................................................................................... 20 3.17 WASTE WATER RELATED PUBLIC HEALTH ISSUES AND CRITICAL SEWERAGE ASSETS ............. 20 3.18 AFTER ACTION REVIEW......................................................................................................... 21 PART 4. EMERGENCY RELIEF AND RECOVERY ARRANGEMENTS ..................................... 22 4.1 GENERAL ............................................................................................................................. 22 4.2 EMERGENCY RELIEF ............................................................................................................. 22 4.3 ANIMAL WELFARE ................................................................................................................. 22 4.4 TRANSITION FROM RESPONSE TO RECOVERY ........................................................................ 22 APPENDIX A - FLOOD THREATS FOR CITY OF DAREBIN ......................................................... 23 DESCRIPTION OF MAJOR WATERWAYS AND DRAINS ........................................................................... 24 FLOOD MITIGATION MEASURES ......................................................................................................... 27 SEWERAGE INFRASTRUCTURE ........................................................................................................... 30 HYDROGRAPHIC MONITORING STATIONS (GAUGES) ........................................................................... 31 DAM FAILURE ................................................................................................................................... 32 HISTORIC FLOODS ............................................................................................................................ 32 APPENDIX B - TYPICAL FLOOD PEAK TRAVEL TIMES .............................................................. 35 TYPICAL TRAVEL TIMES .................................................................................................................... 35 HISTORICAL TRAVEL TIMES ............................................................................................................... 35 APPENDIX C1 - THREAT OF FLOODING ALONG DAREBIN CREEK ......................................... 37 AREAS OF FLOOD RISK ..................................................................................................................... 39 PROPERTIES AT FLOOD RISK ............................................................................................................ 40 ISOLATION ........................................................................................................................................ 40 ESSENTIAL INFRASTRUCTURE ........................................................................................................... 40 ROAD CLOSURES ............................................................................................................................. 41 FLOOD MITIGATION – DAREBIN CREEK .............................................................................................. 41 SEWERAGE INFRASTRUCTURE ........................................................................................................... 41 COMMAND, CONTROL & COORDINATION ............................................................................................ 41 FLOOD IMPACTS & OPERATIONAL CONSIDERATIONS (INTELLIGENCE CARDS) ...................................... 42 FLOOD INTELLIGENCE CARD – BUNDOORA GAUGE, DAREBIN CREEK ............................... 43 FLOOD INTELLIGENCE CARD – IVANHOE GAUGE, DAREBIN CREEK ................................... 44 APPENDIX C2 - THREAT OF FLOODING ALONG MERRI CREEK .............................................. 45 AREAS OF FLOOD RISK ..................................................................................................................... 47 FLOOD MARKER MAPS ALONG MERRI CREEK .................................................................................... 48 PROPERTIES AT FLOOD RISK ............................................................................................................ 51 ISOLATION ........................................................................................................................................ 51 ESSENTIAL INFRASTRUCTURE ........................................................................................................... 52 ROAD CLOSURES ............................................................................................................................. 52 FLOOD MITIGATION – MERRI CREEK .................................................................................................. 53 SEWERAGE INFRASTRUCTURE ........................................................................................................... 54 COMMAND, CONTROL & COORDINATION ............................................................................................ 55 FLOOD IMPACTS & OPERATIONAL CONSIDERATIONS (INTELLIGENCE CARDS) ...................................... 55 FLOOD INTELLIGENCE CARD – COBURG EAST GAUGE, MERRI CREEK .............................. 56 FLOOD INTELLIGENCE CARD – NORTHCOTE GAUGE, MERRI CREEK ................................. 58 APPENDIX C3 - THREAT OF FLOODING ALONG EDGARS & CENTRAL CREEKS .................. 60 AREAS OF FLOOD RISK ..................................................................................................................... 62 PROPERTIES AT FLOOD RISK ............................................................................................................ 63 ISOLATION .......................................................................................................................................