Knox Council Flood Emergency Plan

Transcription

1 Knox Council Flood Emergency Plan A Sub-Plan of the Municipal Emergency Management Plan For Knox Council And VICSES Unit Knox

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3 Table of Contents DISTRIBUTION LIST... V DOCUMENT TRANSMITTAL FORM / AMENDMENT CERTIFICATE... VI LIST OF ABBREVIATIONS & ACRONYMS... VII PART 1. INTRODUCTION MUNICIPAL ENDORSEMENT THE MUNICIPALITY PURPOSE AND SCOPE OF THIS FLOOD EMERGENCY PLAN MUNICIPAL FLOOD PLANNING COMMITTEE (MFPC) RESPONSIBILITY FOR PLANNING, REVIEW & MAINTENANCE OF THIS PLAN ENDORSEMENT OF THE PLAN... 3 PART 2. PREVENTION / PREPAREDNESS ARRANGEMENTS COMMUNITY AWARENESS FOR ALL TYPES OF FLOODING STRUCTURAL FLOOD MITIGATION MEASURES NON-STRUCTURAL FLOOD MITIGATION MEASURES Exercising the Plan Flood Warning Flood Wardens... 4 PART 3. RESPONSE ARRANGEMENTS INTRODUCTION Activation of Response Responsibilities Municipal Emergency Coordination Centre (MECC) Escalation STRATEGIC CONTROL PRIORITIES COMMAND, CONTROL & COORDINATION Control Incident Controller (IC) Incident Control Centre (ICC) Divisions and Sectors Incident Management Team (IMT) Emergency Management Team (EMT) iii -

4 3.3.7 On Receipt of a Flood Watch / Severe Weather Warning On Receipt of the First and Subsequent Flood Warnings COMMUNITY INFORMATION AND WARNINGS MEDIA COMMUNICATION RAPID IMPACT ASSESSMENT PRELIMINARY DEPLOYMENTS RESPONSE TO FLASH FLOODING EVACUATION FLOOD RESCUE AIRCRAFT MANAGEMENT RESUPPLY ESSENTIAL COMMUNITY INFRASTRUCTURE AND PROPERTY PROTECTION DISRUPTION TO SERVICES ROAD CLOSURES DAM FAILURE WASTE WATER RELATED PUBLIC HEALTH ISSUES AND CRITICAL SEWERAGE ASSETS AFTER ACTION REVIEW PART 4. EMERGENCY RELIEF AND RECOVERY ARRANGEMENTS GENERAL EMERGENCY RELIEF ANIMAL WELFARE TRANSITION FROM RESPONSE TO RECOVERY APPENDIX A - FLOOD THREATS FOR THE CITY OF KNOX APPENDIX B - TYPICAL FLOOD PEAK TRAVEL TIMES CUMULATIVE HOURS APPENDIX C1 UPPER DANDENONG CREEK (BORONIA/BAYSWATER/WANTIRNA) FLOOD EMERGENCY PLAN APPENDIX C2 BLIND CREEK (BORONIA/WANTIRNA/WANTIRNA SOUTH/FERNTREE GULLY) FLOOD EMERGENCY PLAN APPENDIX D - FLOOD EVACUATION ARRANGEMENTS APPENDIX E - FLOOD WARNING SYSTEMS APPENDIX F MAPS iv -

5 Distribution List Copy No. Issue To: Name Organisation Date Original MEMP Committee Executive Officer 1 Knox Council Office Copy 2 Kaylene Ramsdell MEMP Committee Chairperson 3 Kaylene Ramsdell MERO 4 John Salter and Trevor Wicks Deputy MERO 5 Tony Justice MRM 6 Snr Sergeant John Hess MERC (Knox Police Station) 7 RERC 8 [Enter Details] Police Station 9 [Enter Details] Police Station 10 Diana Ferguson VICSES (Central Region Headquarters) 11 Brett Taylor VICSES Knox unit 12 Simone Corby Melbourne Water Floodplain Services DEPT 13 Bureau of Meteorology (Flood Warning) 14 DSE [Enter Details] 15 Parks Victoria (Where appropriate) 16 Team Leader Ambulance Victoria [Enter Details] branch) 17 Jason Lawrence CFA Boronia Brigade 18 Dave Renkin CFA Operations Manager 19 Team Leader VicRoads Tally Ho EM Section 20 Sara Coward Emergency Management Coordinator & Critical Incident Response Management Department of Human Services Eastern Metropolitan Region Box Hill 21 Power supplier [Enter Details] 22 Wholesale water supplier [Enter Details] 23 Water Retailer [Enter Details] 24 Others refer to MEMP distribution list? 25 Spare Copies Napolian - v -

6 Document Transmittal Form / Amendment Certificate This Municipal Flood Emergency Plan (MFEP) will be amended, maintained and distributed as required by VICSES in consultation with the Knox City Council Suggestions for amendments to this Plan should be forwarded to VICSES Central Regional Office Victoria State Emergency Service Central Region Headquarters Unit 6, 3-5 Gilda Court Mulgrave Amendments listed below have been included in this Plan and promulgated to all registered copyholders. Amendment Number Date of Amendment Amendment Entered By Summary of Amendment Version 01 10/02/2012 Diana Ferguson Population of Template Version 02 1/06/2012 Diana Ferguson Updated Population of Template This Plan will be maintained on the Knox Council and SES website. or - vi -

7 List of Abbreviations & Acronyms The following abbreviations and acronyms are used in the Plan: AEP AHD AIIMS AoCC ARI ARMCANZ AV BoM CEO CERM CFA CMA RERC RERCC DHS DH DoI DPI DSE EMMV EMT EO FO FWS FZ IC ICC IMT IMS EMLO LSIO MECC MEMP MEMPC MERC MERO MFB MRM PMF RCC RDO SBO SCC SEWS SHERP SOP VicPol VICSES Annual Exceedance Probability Australian Height Datum (the height of a location above mean sea level in metres) Australasian Inter-service Incident Management System Area of Operations Control Centre / Command Centre Average Recurrence Interval Agricultural & Resource Management Council of Australia & New Zealand Ambulance Victoria Bureau of Meteorology Chief Executive Officer Community Emergency Risk Management Country Fire Authority Catchment Management Authority Regional Emergency Response Coordinator Regional Emergency Response Coordination Centre Department of Human Services Department of Health Department of Infrastructure Department of Primary Industries Department of Sustainability and Environment (successor body to DNRE) Emergency Management Manual Victoria Emergency Management Team Executive Officer Floodway Overlay Flood Warning System Floodway Zone Incident Controller Incident Control Centre Incident Management Team Incident Management System Emergency Management Liaison Officer Land Subject to Inundation Overlay Municipal Emergency Coordination Centre Municipal Emergency Management Plan Municipal Emergency Management Planning Committee Municipal Emergency Response Coordinator Municipal Emergency Resource Officer Metropolitan Fire and Emergency Services Board Municipal Recovery Manager Probable Maximum Flood Regional Control Centre Regional Duty Officer Special Building Overlay State Control Centre Standard Emergency Warning System State Health Emergency Response Plan Standard Operating Procedure Victoria Police Victoria State Emergency Service - vii -

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9 Part 1. INTRODUCTION 1.1 Municipal Endorsement This Municipal Flood Emergency Plan (MFEP) has been prepared by Municipal Flood Planning Committee and with the authority of the Knox Municipal Emergency Management Committee (refer to section 1.6 endorsement of plan) pursuant to Section 20 of the Emergency Management Act 1986 (as amended). This MFEP is a sub plan to the Knox Municipal Emergency Management Plan (MEMP), is consistent with the Emergency Management Manual Victoria (EMMV) and the Victoria Flood Management Strategy (DNRE, 1998a), and takes into account the outcomes of the Community Emergency Risk Management (CERM) process undertaken by the Municipal Emergency Management Planning Committee (MEMPC). The MFEP is consistent with the Regional Flood Emergency Plan and the State Flood Emergency Plan. This MFEP is a result of the cooperative efforts of the Municipal Flood Planning Committee (MFPC) and its member agencies. This Plan is endorsed by the Knox MFEP as a sub-plan to the MEMP. Endorsement - 1 -

10 1.2 The Municipality An outline of the Knox Municipality in terms of its location, demography and other general matters is provided in the MEMP. An outline of the flood threat is provided in Appendix A of this Plan. 1.3 Purpose and Scope of this Flood Emergency Plan The purpose of this MFEP is to detail arrangements agreed for the planning, preparedness/prevention, response and recovery from flood incidents within the Knox Municipality. As such, the scope of the Plan is to: Identify the Flood Risk to Knox Municipality. Support the implementation of measures to minimise the causes and impacts of flood incidents within the Knox Municipality. Detail Response and Recovery arrangements including preparedness, Incident Management, Command and Control; Identify linkages with Local, Regional and State emergency and wider planning arrangements with specific emphasis on those relevant to flood. 1.4 Municipal Flood Planning Committee (MFPC) Membership of the Knox Flood Planning Committee (MFPC) will comprise of the following representatives from the following agencies and organisations: VICSES (i.e. Unit Controller & Regional Officer Emergency Management) (Chair), Knox City Council, Victoria Police (i.e. Municipal Emergency Response Co-ordinator) (MERC), Catchment Management Authority, Department of Health (DH) as required, Department of Human Services (DHS) as required, Department of Sustainability and Environment (DSE) as required, Water Authorities as required, Bureau of Meteorology as required, Metropolitan Fire and Emergency Services Board (MFB); or Country Fire Authority (CFA) if relevant, Parks Victoria as required, Local community representatives and Other agencies as required - 2 -

11 1.5 Responsibility for Planning, Review & Maintenance of this Plan This Municipal Flood Emergency Plan must be maintained in order to remain effective. VICSES through the Flood Planning Committee has responsibility for preparing, reviewing, maintaining and distributing this plan. The MFPC will meet at least once per year. The plans should be reviewed: - Following any new flood study; - Change in non-structural and/or structural flood mitigation measures; - After the occurrence of a significant flood event within the Municipality to review and where necessary amend arrangements and information contained in this Plan. 1.6 Endorsement of the Plan The MFEP will be circulated to MFPC members to seeking acceptance of the draft plan. Upon acceptance, the plan is forwarded to the MEMPC for endorsement with the recommendation to include the MFEP as a sub-plan of the MEMPlan

12 Part 2. PREVENTION / PREPAREDNESS ARRANGEMENTS 2.1 Community Awareness for all Types of Flooding Details of this MFEP will be released to the community through local media, the FloodSafe program, websites (VICSES and the Knox City Council) upon formal adoption by Knox City Council. VICSES with the support of Knox City Council and Melbourne Water will coordinate community education programs for flooding within the Knox area. E.g. FloodSafe / StormSafe. A Community Engagement Plan (CEP) to support this plan will be developed in conjunction with VICSES local units. VICSES local units will lead the delivery of the CEP with support from Knox City Council and VICSES Central Region. 2.2 Structural Flood Mitigation Measures Refer to appendix A and C for detailed information of structural flood mitigation measures. 2.3 Non-structural Flood Mitigation Measures Exercising the Plan Arrangements for exercising this Plan will be at the discretion of the MEMPC. This Plan should be regularly exercised, preferably on an annual basis. Refer to section 4.7 of the EMMV for guidance Flood Warning Arrangements for flood warning are contained within the State Flood Emergency Plan and the EMMV (Part 3.7) and on the BoM website Specific details of local flood warning system arrangements are provided in appendix E Flood Wardens Flood Wardens provide a means of gathering information in real time on flood behaviour along a stream system, and a network for the distribution of community information and warnings to the community along the stream system. No Flood Wardens have been established

13 Part 3. RESPONSE ARRANGEMENTS 3.1 Introduction Activation of Response Flood response arrangements may be activated by the Regional Duty Officer (RDO) VICSES Central Region or Incident Controller. The Incident Controller/RDO VICSES will activate agencies as required and documented in the State Flood Emergency Plan Responsibilities There are a number of agencies with specific roles that will act in support of VICSES and provide support to the community in the event of a serious flood within the Knox Municipality. These agencies will be engaged through the Emergency Management Team. The general roles and responsibilities of supporting agencies are as agreed within the Knox MEMP, EMMV (Part 7 Emergency Management Agency Roles ), State Flood Emergency Plan and Regional Flood Emergency Plan. Agreed roles of supporting agencies may be listed/are in a separate appendix to this plan Municipal Emergency Coordination Centre (MECC) Liaison with the MECC will be through the established Division/Sector Command and through Municipal involvement in the Incident EMT, in particular the Municipal Emergency Response Coordinator (MERC). The VICSES RDO / ICC will liaise with the MECC directly if no Division/Sector Command is established. The function, location, establishment and operation of the MECC will be as detailed in the Knox MEMP Escalation Most flood incidents are of local concern and an appropriate response can usually be coordinated using local resources. However, when these resources are exhausted, the State s arrangements provide for further resources to be made available, firstly from neighbouring Municipalities (on a regional basis) and then on a State-wide basis. Resourcing and event escalation arrangements are described in the EMMV ( State Emergency Response Plan section 3.6)

14 3.2 Strategic Control Priorities To provide guidance to the Incident Management Team (IMT), the following strategic control priorities shall form the basis of incident action planning processes: 1. Protection and preservation of life is paramount - this includes: a. Safety of emergency services personnel, and; b. Safety of community members including vulnerable community members and visitors/tourist located within the incident area. 2. Issuing of community information and community warnings detailing incident information that is timely, relevant and tailored to assist community members make informed decisions about their safety.; 3. Protection of critical infrastructure and community assets that supports community resilience; 4. Protection of residential property as a place of primary residence; 5. Protection of assets supporting individual livelihoods and economic production that supports individual and community financial sustainability 6. Protection of environmental and conservation values that considers the cultural, biodiversity, and social values of the environment; Circumstances may arise where the Incident Controller is required to vary these priorities, with the exception being that the protection of life should remain the highest. This shall be done in consultation with the State Controller and relevant stakeholders based on sound incident predictions and risk assessments. 3.3 Command, Control & Coordination The Command, Control and Coordination arrangements in this Municipal Flood Emergency Plan must be consistent with those detailed in State and Regional Flood Emergency Plans. For further information, refer to sections 3.3, 3.4, 3.5 & 3.6 of the EMMV. The specific details of the Command, Control and Coordination arrangements for this plan are to be provided in Appendix C Control Functions 5(a), 5 (b) and 5(c) at Part 2 of the Victoria State Emergency Service Act 1986 (as amended) detail the authority for VICSES to plan for and respond to flood. Part 7.1 of the EMMV prepared under the Emergency Management Act 1986 (as amended), identifies VICSES as the Control Agency for flood. It identifies DSE as the Control Agency responsible for dam safety, water and sewerage asset related incidents and other emergencies All flood response activities within the Knox Municipality including those arising from a dam failure or retarding basin / levee bank failure incident will therefore be under the control of the appointed Incident Controller, or his / her delegated representative

15 3.3.2 Incident Controller (IC) An Incident Controller (IC) will be appointed by the VICSES (as the Control Agency) to command and control available resources in response to a flood event on the advice of the Bureau of Meteorology (or other reliable source) that a flood event will occur or is occurring. The Incident Controller responsibilities are as defined in Part 3.5 of the EMMV Incident Control Centre (ICC) As required, the Incident Controller will establish an Incident Control Centre (ICC) from which to initiate incident response command and control functions. The decision as to if and when the ICC should be activated, rests with the Control Agency (i.e. VICSES). Pre-determined Incident Control Centre locations are Sunshine Mulgrave Woori Yallock Ferntree Gully Divisions and Sectors To ensure that effective Command and Control are in place, the Incident Controller may establish Divisions and Sectors depending upon the complexity of the event and resource capacities. The following Divisions and Sectors may be established to assist with the management of flooding within the Municipality: Division Knox Unit Sector To be allocated on a as needs basis Pre-determined Division Command locations are: Knox Unit Currently Knox Unit has been identified as the Divisional Command Point for events in Knox municipality. Note another project is running concurrently that seeks to identify suitable locations into the future for Division Command locations & Sector Command locations Points, which may see this location change. Pre-determined Sector Command locations are: To be allocated on a as needs basis Incident Management Team (IMT) The Incident Controller will form an Incident Management Team (IMT). Refer to 3.5 of the EMMV for guidance on IMTs and Incident Management Systems (IMSs)

16 3.3.6 Emergency Management Team (EMT) The Incident Controller will establish a multi-agency Emergency Management Team (EMT) to assist the flood response. The EMT will consist of key personnel (with appropriate authority) from stakeholder agencies and relevant organisations who need to be informed of strategic issues related to incident control and who are able to provide high level strategic guidance and policy advice to the Incident Controller for consideration in developing incident management strategies. Organisations, including Knox City Council, required within the EMT will provide an Emergency Management Liaison Officer (EMLO) to the ICC if and as required as well as other staff and / or resources identified as being necessary, within the capacity of the organisation. Refer to 3.5 of the EMMV for guidance on EMTs On Receipt of a Flood Watch / Severe Weather Warning Incident Controller or VICSES RDO (until an incident controller is appointed) will undertake actions as defined within the flood intelligence cards (appendix C). General considerations by the Incident Controller/VICSES RDO will be as follows: Review flood intelligence to assess likely flood consequences Monitor weather and flood information Assess Command and Control requirements. Review local resources and consider needs for further resources regarding personnel, property protection, flood rescue and air support Notify and brief appropriate officers. This includes Regional Control Centre (RCC) (if established), State Control Centre (SCC) (if established), Council, other emergency services through the EMT. Assess ICC readiness (including staffing of IMT and EMT) and open if required Ensure flood bulletins and community information are prepared and issued to the community Monitor watercourses and undertake reconnaissance of low-lying areas Develop media and community information management strategy Ensure flood mitigation works are being checked by owners Develop and issue incident action plan, if required Develop and issue situation report, if required On Receipt of the First and Subsequent Flood Warnings Incident Controller/VICSES RDO (until an incident controller is appointed) will undertake actions as defined within the flood intelligence cards (appendix C). General considerations by the Incident Controller/VICSES RDO will be as follows: Develop an appreciation of current flood levels and predicted levels. Are floodwaters, rising, peaking or falling? Review flood intelligence to assess likely flood consequences. Consider: What areas may be at risk of inundation What areas maybe at risk of isolation - 8 -

17 What areas maybe at risk of indirect affects as a consequence of power, gas, water, telephone, sewerage, health, transport or emergency service infrastructure interruption The characteristics of the populations at risk Determine what the at-risk community need to know and do as the flood develops. Warn the at-risk community including ensuring that an appropriate warning and community information strategy is implemented including details of: The current flood situation Flood predictions What the consequences of predicted levels may be Public safety advice Who to contact for further information Who to contact for emergency assistance Liaise with relevant asset owners as appropriate (i.e. water and power utilities) Implement response strategies as required based upon flood consequence assessment. Continue to monitor the flood situation Continue to conduct reconnaissance of low-lying areas 3.4 Community Information and Warnings Guidelines for the distribution of community information and warnings are contained in the State Flood Emergency Plan. Community information and warnings communication methods available include: Emergency Alert; Phone messages (including SMS); Radio and Television; Two-way radio; Mobile and fixed public address systems; Sirens; Verbal Messages (i.e. Doorknocking); Agency Websites; VICSES Flood Storm Information Line; Variable Message Signs (i.e. road signs); Community meetings; Newspapers; ; Telephone trees; Community Flood Wardens; Fax Stream; Newsletters; - 9 -

18 Letter drops; Social media and/or social networking sites (i.e. twitter and/or facebook). Refer to Appendix C and E for the specific details of how community information and warnings are to be provided. The release of flood bulletins and information with regard to response activities at the time of a flood event is the responsibility of VICSES, as the Control Agency. Council has the responsibility to assist VICSES to warn individuals within the community including activation of flood warning systems, where they exist. Responsibility for public information, including media briefings, rest with VICSES as the Control Agency. Other agencies such as CFA, DSE and VICPOL may be requested to assist VICSES with the communication of community flood warnings. In cases where severe flash flooding is predicted, dam failure is likely or flooding necessitating evacuation of communities is predicted, the Incident Controller may consider the use of the Emergency Alert System and Standard Emergency Warning System (SEWS). DH will coordinate information regarding public health and safety precautions. 3.5 Media Communication The Incident Controller through the Information Unit established at the ICC will manage Media communication. If the ICC is not established the RDO will manage all media communication. 3.6 Rapid impact assessment A rapid impact assessment can be conducted in accordance with part 3 of the EMMV to assess and record the extent and nature of damage caused by flooding. This information may then be used to provide the basis for further needs assessment and recovery planning by DHS and recovery agencies. 3.7 Preliminary Deployments When flooding is expected to be severe enough to cut access to towns, suburbs and/or communities the Incident Controller will consult with relevant agencies to ensure that resources are in place if required to provide emergency response. These resources might include emergency service personnel, food items and non-food items such as medical supplies, shelter, assembly areas, relief centres etc. 3.8 Response to Flash Flooding Emergency management response to flash flooding should be consistent with the guideline for the emergency management of flash flooding contained within the State Flood Emergency Plan. When conducting pre-event planning for flash floods the following steps should be followed, and in the order as given: 1. Determine if there are barriers to evacuation by considering warning time, safe routes, resources available and etc; 2. If evacuation is possible, then evacuation should be the adopted strategy and it must be supported by a public information capability and a rescue contingency plan;

19 3. Where its is likely people will become trapped by floodwaters due to limited evacuation options safety advice needs to be provided to people at risk advising them not to attempt to flee by entering floodwater if they become trapped, and that it may be safer to seek the highest point within the building and to telephone 000 if they require rescue. This advice needs to be provided even when evacuation may be possible, due the likelihood that not all community members will evacuate. 4. For buildings known to be structurally un-suitable an earlier evacuation trigger will need to be established (return to step 1 of this cycle). 5. If an earlier evacuation is not possible then specific preparations must be made to rescue occupants trapped in structurally unsuitable buildings either pre-emptively or as those people call for help. During a flash flood it will often be difficult, due the rapid development of flooding, to establish emergency relief centres ahead of actually triggering the evacuation as is normal practice but this is insufficient justification for not adopting evacuation. Refer to appendix C for response arrangements for flash flood events. Refer to Vic Road Website for road closures Evacuation The decision to recommend or warn people to prepare to evacuate or to evacuate immediately rests with the Incident Controller. Once the decision is made VicPol are responsible for the management of the evacuation process where possible. VICSES and other agencies will assist where practical. VICSES is responsible for the development and communication of evacuation warnings. VicPol and/or Australian Red Cross may take on the responsibility of registering people affected by a flood emergency including those who have been evacuated. Refer to section 3.8 of the EMMV and the Evacuation Guidelines for guidance of evacuations for flood emergencies. Refer to Appendix D of this Plan for detailed evacuation arrangements for the Knox municipality Flood Rescue VICSES may conduct flood rescues. Appropriately trained and equipped VICSES units or other agencies that have appropriate training, equipment and support may carry out rescues. Rescue operations may be undertaken where voluntary evacuation is not possible, has failed or is considered too dangerous for an at-risk person or community. An assessment of available flood rescue resources (if not already done prior to the event) should be undertaken prior to the commencement of Rescue operations. Rescue is considered a high-risk strategy to both rescuers and persons requiring rescue and should not be regarded as a preferred emergency management strategy. Rescuers should always undertake a dynamic risk assessment before attempting to undertake a flood rescue. Rescue Manager appointed by Vic Police to Coordinate Rescues with support from SES Units

20 3.11 Aircraft Management Aircraft can be used for a variety of purposes during flood operations including evacuation, resupply, reconnaissance, intelligence gathering and emergency travel. Air support operations will be conducted under the control of the Incident Controller. The Incident Controller may request aircraft support through the State Air Desk located at the State Control Centre who will establish priorities. Suitable airbase facilities are located at: Essendon Moorabbin 3.12 Resupply Communities, neighbourhoods or households can become isolated during floods as a consequence of road closures or damage to roads, bridges and causeways. Under such circumstances, the need may arise to resupply isolated communities/properties with essential items. When predictions/intelligence indicates that communities, neighbourhoods and/or households may become isolated, VICSES will advise businesses and/or households that they should stock up on essential items. After the impact, VICSES can support isolated communities through assisting with the transport of essential items to isolated communities and assisting with logistics functions. Resupply operations are to be included as part of the emergency relief arrangements with VICSES working with the relief agencies to service communities that are isolated Essential Community Infrastructure and Property Protection Essential Community Infrastructure and Property (e.g. residences, businesses, roads, power supply etc.) may be affected in the event of a flood. The Knox City Council maintains a small stock of sandbags, and back-up supplies are available through the VICSES Regional Headquarters. The Incident Controller will determine the priorities related the use of sandbags, which will be consistent with the strategic priorities. If VICSES sandbags are becoming limited in supply, then priority will be given to protection of Essential Community Infrastructure. Other high priorities may include for example the protection of historical buildings. Property may be protected by: Sandbagging to minimise entry of water into buildings Encouraging businesses and households to lift or move contents Construction of temporary levees in consultation with the CMA, LGA and VICPOL and within appropriate approval frameworks. The Incident Controller will ensure that owners of Essential Community Infrastructure are kept advised of the flood situation. Essential Community Infrastructure providers must keep the Incident Controller informed of their status and ongoing ability to provide services

21 Refer to Appendix C for further specific details of essential infrastructure requiring protection and location of sandbag collection point(s) Disruption to Services Disruption to services other than essential community infrastructure and property can occur in flood events. Refer to appendix C for specific details of likely disruption to services and proposed arrangements to respond to service disruptions in Knox municipality Road Closures Knox City Council and VicRoads will carry out their formal functions of road closures including observation and placement of warning signs, road blocks etc. to its designated local and regional roads, bridges, walking and bike trails. Knox City Council staff may also liaise with and advise VicRoads as to the need or advisability of erecting warning signs and / or of closing roads and bridges under its jurisdiction. VicRoads are responsible for designated main roads and highways and Council s are responsible for the designated local and regional road network. VICROADS and Knox municipality will communicate community information regarding road closures Dam Failure DSE is the Control Agency for dam safety incidents (e.g. breach, failure or potential breach / failure of a dam), however VICSES is the Control Agency for any flooding that may result. Major dams with potential to cause structural and community damage within the Knox Municipality are contained in Appendix A Waste Water related Public Health Issues and Critical Sewerage Assets Inundation of critical sewerage assets including septic tanks and sewerage pump stations may result in water quality problems within the Municipality. Where this is likely to occur or has occurred the responsibility agency for the critical sewerage asset should undertake the following: Advise VICSES of the security of critical sewerage assets to assist preparedness and response activities in the event of flood; Maintain or improve the security of critical sewerage assets; Check and correct where possible the operation of critical sewerage assets in times of flood; Advise the ICC in the event of inundation of critical sewerage assets. It is the responsibility of the Knox City Council Environmental Health Officer to inspect and report to the MERO and the ICC on any water quality issues relating to flooding After Action Review VICSES will coordinate the after action review arrangements of flood operations as soon as practical following an event. All agencies involved in the flood incident should be represented at the after action review

22 Part 4. EMERGENCY RELIEF AND RECOVERY ARRANGEMENTS 4.1 General Arrangements for recovery from a flood incident within the Knox Municipality is detailed in the Knox MEMP and the Recovery Sub-plan. 4.2 Emergency Relief The decision to recommend the opening of an emergency relief centre rests with the Incident Controller. Incident Controllers are responsible for ensuring that relief arrangements have been considered and implemented where required under the State Emergency Relief and Recovery Plan (Part 4 of the EMMV). The range and type of emergency relief services to be provided in response to a flood event will be dependent upon the size, impact, and scale of the flood. Refer to 4.4 of the EMMV for details of the range of emergency relief services that may be provided. Suitable relief facilities identified for use during floods are detailed in Appendix C and the MEMP. Details of the relief arrangements are available in the Knox MEMP. 4.3 Animal Welfare Matters relating to the welfare of livestock, and companion animals (including feeding and rescue) are to be referred to DPI. Requests for emergency supply and/or delivery of fodder to stranded livestock or for livestock rescue are passed to DPI. Matters relating to the welfare of wildlife are to be referred to DSE. Refer to Appendix C for animal shelter compound locations. 4.4 Transition from Response to Recovery VICSES as the Control Agency is responsible for ensuring effective transition from response to recovery. This transition will be conducted in accordance with existing arrangements as detailed in Part 3 Section 3.10 of the EMMV

23 APPENDIX A - FLOOD THREATS FOR THE CITY OF KNOX General The Knox City Council is located approximately 24 km east of Melbourne and covers an area of approximately 100 km 2. The municipality has a populous of 150,000 people. It is highly developed and comprises commercial, industrial and residential areas. 52,673 residential dwellings, 1,522 properties zoned for business and 3,047 industrial buildings are located in the municipality. Rural land still exists in the south-west corner. There are eleven suburbs in the municipality. The municipality adjoins six other municipalities. Riverine Flooding Large severe floods within the Municipality generally occur as a result of a moist warm airflow from northern Australia bringing moderate to heavy rainfall over a period of 12 hours or more following a prolonged period of general rainfall. The period of general rainfall wets up the catchments and (partially) fills both the on-stream dams and the natural floodplain storage. These combine to increase the runoff generated during the subsequent period of heavy rainfall. Large but less severe floods result from sequences of cold fronts during winter and spring that progressively wet up the catchments and fill the on-stream dams and the natural floodplain storage. Prolonged moderate to heavy rain leads to major flooding. Flash Flooding & Overland Flows Short Duration, high intensity rainfall (usually associated with thunderstorms) can also cause localised flooding within the municipality along overland flow paths when the local urban drainage system surcharges. Such events, which are mainly confined to the summer months, do not generally create widespread flooding since they only last for a short time and affect limited areas. Flooding from these storms occurs with little warning and localised damage can be severe. High intensity rainfall such as associated with thunderstorms giving average rainfall rates of more than 20mm/hour for an hour or more is likely to lead to flash flooding and / or overland flows, across the urbanised parts of the municipality. Blocked or capacity impaired stormwater drains can also lead to overland flows and associated flooding: the drain surcharges and excess water flows above ground. Description of Major Waterways and Drains There are six major catchments in the Knox Municipality: Northern Blind Creek, Southern Blind Creek, Upper Dandenong Creek, Rowville Main Drain, Corhanwarrabul Creek and Lower Dandenong Creek. These catchments are comprised of 42 smaller sub-catchments known as the Melbourne Water drainage catchments. The municipality is described as gently undulating with flat ground in the vicinity of the creeks (KCC, 2011). Key features are waterways, channels, pipe assets, wetlands and retarding basins. The City of Knox has no rivers. Approximately 94% of the municipality s runoff discharges into Dandenong Creek and flows through Mordialloc Creek to Port Phillip Bay while a small area of Lysterfield Hills drains to Eummerring Creek (ultimately flowing to Port Phillip Bay). There are some constructed waterways in the municipality (Caribbean Lake, Waterford Valley Lakes, Sutton, Hill and Cogely Lakes)

24 Figure A1 Dandenong Creek Schematic

25 Flood Mitigation Systems Flood mitigation has predominantly been developed in the form of 14 Retarding Basins and 3 Levees. These flood mitigation systems are as follows in the tables below. To view their locations and connecting waterway/drainage systems, see map B in Appendix F. No Pumping Stations exist within the Municipality. Melbourne Water Retarding Basin On Drain/ Waterway Embankment Height (m) Capacity at Spillway Level (ML) FSL (m AHD) Spillway Level (m AHD) Blind Creek Blind Creek Boronia Park Tributary of Blind Creek Ferny Creek Ferny Creek Knoxfield Knoxfield Outfall Drain Liverpool Road Dandenong Creek Lysterfield West Lysterfield West Drain Old Joes Creek Old Joes Creek Police Road Dandenong Creek Riddell Road Riddell Road Drain Rowville Lakes (1) Rowville Lakes (2) Rowville Lakes (3) Kelletts Road Drain Kelletts Road Drain Kelletts Road Drain Sasses Avenue Pentlowe Road Drain Windermere Windermere Drain Melbourne Water Levee Corhanwarralbul Creek Ferny Creek Monbulk Creek Reach Side Levee Height (m) Stud Rd to Henderson Rd Henderson Rd to Hancock Dr Karoo Rd (Italian Club) Levee Length (km) Levee Shape Levee Material North Trapezoid Earth North Trapezoid Earth Melway Ref 72K9-73B8 73B9-73G6 South Trapezoid Earth 73C8 Historic Floods Significant floods to have occurred within the City of Knox are as follows in the table below. To view the locations of these floods, see map D in Appendix F. Date Height (m) Flood Class 1934 September 1959 August 1961 January 1963 Wantirna Rd, Heathmont Wantirna Rd, Heathmont Wantirna Rd, Heathmont Wantirna Rd, Heathmont Date Height (m) Flood Class July 1991 December 1993 July 1996 December 2003 Police Rd RB Police Rd RB Police Rd RB Police Rd RB Moderate Minor Moderate November 1978 Police Rd RB Minor November 2004 Police Rd RB Minor September 1984 Police Rd RB Major February 2005 Police Rd RB Major July 1987 Police Rd RB Moderate December 2007 June 1989 Police Rd RB Moderate December 2008 July 1990 Police Rd RB Minor February 2011 Police Rd RB Moderate Minor

26 Dam Failure No dams, either in or upstream of the City of Knox are expected to affect the Municipality from flooding

27 APPENDIX B - TYPICAL FLOOD PEAK TRAVEL TIMES In using the information contained in this Appendix, consideration needs to be given to the time of travel of the flood peak. A flood on a dry waterway will generally travel more slowly than a flood on a wet waterway (eg. The first flood after a dry period will travel more slowly than the second flood in a series of floods). Hence, recent flood history, soil moisture and forecast weather conditions all need to be considered when using the following inform ation to direct flood response activities. Note that flooding will start some time ahead of the time indicated by the following travel times these are the time between the flood peaks at respective sites. 1. Cumulative Hours Location From (gauge) DANDENONG CREEK Location To (gauge) Typical Travel Time (hrs) Liverpool Rd RB, The Basin Police Rd RB, Rowville Minor Flood Comments Liverpool Rd RB, The Basin Police Rd RB, Rowville Moderate Flood Liverpool Rd RB, The Basin Police Rd RB, Rowville Major Flood

28 APPENDIX C1 UPPER DANDENONG CREEK (BORONIA/BAYSWATER/WANTIRNA) FLOOD EMERGENCY PLAN Overview of Flooding Consequences Boronia, Bayswater & Wantirna are located approximately 24km East of Melbourne. The prominent watercourse comprising the northern boundary to these suburbs is the Upper Dandenong Creek. Dandenong Creek begins to the east in the Shire of the Yarra Ranges and after flowing along the northern boundary of the City of Maroondah, turns south to form the Western edge of the Municipality. High Intensity, short duration rainfall events can cause flash flooding in and around Boronia, Bayswater & Wantirna, while prolonged rainfall events may cause Dandenong Creek to flood. See maps 7-8, 10, 18-20, 25 & in Appendix F for more insight into flooding in the area. Warning Times Very limited warning times can be given for areas along Dandenong Creek in Bayswater & Wantirna. Gauges upstream at Fussel Rd Retarding Basin and Liverpool Rd Retarding Basin may be able to provide a warning time of between 1-2 hours. Other areas affected by flash flooding in Boronia, Bayswater & Wantirna can expect no warning times once a rainfall event begins other than to monitor the Bureau of Meteorology s website Areas Affected Boronia (Northern Boundary Only) Areas in the northern part of Boronia that may be affected by flooding during an extreme rainfall event are highlighted on Maps 18 & 30 in Appendix F. Specific areas or places of note in and around these maps include: Beresford Dr & Colchester Rd Stoneleigh Ave Harcourt Rd & Bambury St Coogee Aged Care Damar Ave Bayswater Areas of Bayswater that may be affected by flooding during an extreme rainfall event are highlighted on Maps 7, & 31 in Appendix F. Specific areas or places of note in and around these maps include: Holloway Dr, Reid St & McLellan St Barry St, Jersey Rd & Melrich Rd Malvern St, Kearney St, Power Rd & Industry Pl Bayswater Business Park Scoresby Rd & Mountain Hwy Armstrong Rd, Marlborough Rd, Hoskin St, Mark St & Neal St Havelock Rd Dandenong Creek Trail

29 Wantirna (Northern & Western Boundary Only) Areas in the northern and western part of Wantirna that may be affected by flooding during an extreme rainfall event are highlighted on Maps 8, 10 & 31 in Appendix F. Specific areas or places of note in and around these maps include: Rachelle Dr, Gresford Rd & Rylands Pl Wantirna Rd Selkirk Av, St Davids Dr & Angus Cl Bellbird Dr, Mint St, Edna Ct, Juniper Rd & Magnolia St Dandenong Creek Trail Boronia Rd Burwood Hwy The Basin Areas of Wantirna that may be affected by flooding during an extreme rainfall event are highlighted on Maps 8, 10 & 31 in Appendix F. Specific areas or places of note in and around these maps include: Martin Luther Hostel for the Aged Goodwin Estate Pre School Verbena Av, Waratah Av, Rome Beauty Av & Democrat Dr Properties Affected Properties listed in the table below are at risk from flooding above floor level. As more intelligence becomes available, this list is expected to grow. For more information on the properties below, see the intelligence card for Dandenong Creek at Wantirna Rd, Heathmont. Sum of Properties Street Suburb On Watercourse/ Drain Flood Risk Type 3 ALBERT AVENUE BORONIA OLD JOE'S CREEK D.S. Flash 1 ARCADIA AVENUE THE BASIN OLD JOE'S CREEK D.S. Flash 31 BARRY STREET BAYSWATER OLD JOE'S CREEK D.S. Flash 5 CLARE STREET BAYSWATER OLD JOE'S CREEK D.S. Flash 1 DAMAR AVENUE BORONIA OLD JOE'S CREEK D.S. Flash 5 DORSET ROAD BORONIA OLD JOE'S CREEK D.S. Flash 1 DUNLOP COURT BAYSWATER OLD JOE'S CREEK D.S. Flash 3 GRESFORD ROAD WANTIRNA Wantirna North Drainage Scheme Flash 1 HADLOW DRIVE WANTIRNA Wantirna North Drainage Scheme Flash 13 HAVELOCK ROAD BAYSWATER Stud Road North Drainage Scheme Flash 16 HOLLOWAY DRIVE BAYSWATER OLD JOE'S CREEK D.S. Flash 40 INDUSTRY PLACE BAYSWATER OLD JOE'S CREEK D.S. Flash 38 JERSEY ROAD BAYSWATER OLD JOE'S CREEK D.S. Flash 15 KEARNEY STREET BAYSWATER OLD JOE'S CREEK D.S. Flash 109 MALVERN STREET BAYSWATER OLD JOE'S CREEK D.S. Flash 4 MCLELLAN STREET BAYSWATER OLD JOE'S CREEK D.S. Flash 1 MICHELLAN COURT BAYSWATER Stud Road North Drainage Scheme Flash 10 MOUNTAIN HIGHWAY BAYSWATER OLD JOE'S CREEK D.S. Flash 1 OLIVE GROVE BORONIA OLD JOE'S CREEK D.S. Flash 11 POWER ROAD BAYSWATER OLD JOE'S CREEK D.S. Flash 1 RAMAGE STREET BAYSWATER OLD JOE'S CREEK D.S. Flash 11 REID STREET BAYSWATER OLD JOE'S CREEK D.S. Flash

30 32 SCORESBY ROAD BAYSWATER OLD JOE'S CREEK D.S. Flash 1 STEWART STREET BORONIA OLD JOE'S CREEK D.S. Flash 2 Isolation STONELEIGH AVENUE BORONIA OLD JOE'S CREEK D.S. 24 THELOOP BAYSWATER OLD JOE'S CREEK D.S. Flash 8 WIGAN ROAD BAYSWATER OLD JOE'S CREEK D.S. Flash 3 WOODMASON ROAD BORONIA OLD JOE'S CREEK D.S. Flash No major isolation risks exist for Boronia, Bayswater or Wantirna. Some localised short-duration isolation may occur due to flash flooding. Essential Infrastructure Apart from the roads outlined below, all other essential infrastructure and services in Boronia, Bayswater and Wantirna are expected to remain dry during an intense rainfall event. Road Closures The following roads are subject to closure during flooding around Boronia, Bayswater & Wantirna. Note that many minor roads may also be inundated. Flash Wantirna Rd at Dandenong Creek Boronia Rd at Dandenong Creek Burwood Hwy at Dandenong Creek Flood Mitigation Retarding Basins Retarding Basin On Drain/ Waterway Embankment Height (m) Capacity at Spillway Level (Ml) FSL (m AHD) Spillway Level (m AHD) Liverpool Road Dandenong Creek Old Joes Creek Old Joes Creek The Liverpool Road Retarding Basin is located along the upper reaches of Dandenong Creek in Boronia. The retarding basin collects water flowing down from Mount Dandenong after crossing Liverpool Rd. Downstream of the Retarding Basin lay Colchester Rd & Toolimerin Ave. Old Joes Creek Retarding Basin is situated near the beginning of the Old Joes Creek Drainage system on Dorset Rd, Boronia. Downstream are Dorset Rd, Barry St, Jersey Rd, Malvern St & Scoresby Rd. Flood Impacts and Required Actions Refer to the following action tables for Dandenong Creek at Wantirna Rd, Heathmont. Command, Control and Coordination VICSES will assume overall control of the response to flood incidents. Other agencies will be requested to support operations as detailed in this Plan. Control and coordination of a flood incident shall be carried out at the lowest effective level and in accordance with the State Emergency Response Plan (EMMV Part 3). During significant events, VICSES will conduct incident management using multi-agency resources

31 Gauge: Dandenong Creek at Heathmont Location Dandenong Creek at Wantirna Rd, Heathmont (Mel Ref 63H3) Gauge Zero 79.30mAHD River Height (m) Flow (m3/s) Flood Class & Annual Exceedance Probability January 1963 flood level peak September 1959 flood level peak Consequence / Impact Action * Water may start flowing over the lowest point on the footpath at the gauging station (Mel Ref 63H3) Possible flooding of Dandenong Creek at Boronia Rd (Mel Ref 63A8) & Burwood Hwy (Mel Ref 63D5). Record Observations for future reference. Commence monitoring rainfall and river level [ROEM & Council to populate suggested actions] Add lines where necessary to facilitate actions to be taken that are not based upon a consequence/impact occuring Note: flood intelligence records are approximations. This is because no two floods at a location, even if they peak at the same height, will have identical impacts. Flood intelligence cards detail the relationship between flood magnitude and flood consequences. More details about flood intelligence and its use can be found in the Australian Emergency Management Manuals flood series

32 APPENDIX C2 BLIND CREEK (BORONIA/WANTIRNA/WANTIRNA SOUTH/FERNTREE GULLY) FLOOD EMERGENCY PLAN Overview of Flooding Consequences Blind Creek and its surrounding suburbs of Boronia, Wantirna, Wantirna South & Ferntree Gully are approximately 25km East of Melbourne in the Dandenong Creek Catchment. Blind Creek and its tributaries form in the foothills of Mount Dandenong and flow east to west through the centre of the City of Knox before joining Dandenong Creek on the Municipalities Western Boundary. High Intensity, short duration rainfall events can cause flash flooding in and around Boronia, Wantirna, Wantirna South & Ferntree Gully, while prolonged rainfall events may cause Blind Creek to flood. See map A in Appendix F to navigate to some of the recorded hotspots in this area an more insight into flooding in the region. Warning Times Little to no warning times will be available for flooding occurring along Blind Creek because of the small size of the catchment. Monitor the Bureau of Meteorology s website or Melbourne Water s website for rainfall and waterway conditions. Areas Affected Boronia (Southern Boundary Only) Areas in the southern part of Boronia that may be affected by flooding during an extreme rainfall event are highlighted on Maps 1-3 in Appendix F. Specific areas or places of note in and around these maps include: Hazelwood Rd & Springfield Rd Interman Rd, Westmere Dr & Pinevale Ct Ferntree Gully (Northern Boundary Only) Areas in the northern part of Ferntree Gully that may be affected by flooding during an extreme rainfall event are highlighted on Maps 1-2, 14 & in Appendix F. Specific areas or places of note in and around these maps include: Renown St, Halsey St & Williamson Rd Dorset Rd, Edina Rd & the Hills Christian Life Church Blind Creek Bicycle Trail Bond St Renwick Rd, Tynham Cl, West Gully Preschool & Cambden Park Pde Wantirna (Southern Boundary Only) Areas in the southern part of Wantirna that may be affected by flooding during an extreme rainfall event are highlighted on Maps in Appendix F. Specific areas or places of note in and around these maps include: Stud Rd & Burwood Hwy Alderford Dr & Sandhurst Rd Brentwood Dr, Cherrington Sq, Attenborough Sq & Barrington Ct