City of Whittlesea Flood Emergency Plan

Transcription

1 City of Whittlesea Flood Emergency Plan A Sub-Plan of the Municipal Emergency Management Plan For City of Whittlesea and VICSES Unit Whittlesea Version 2.0

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3 Table of Contents DISTRIBUTION LIST... VI DOCUMENT TRANSMITTAL FORM / AMENDMENT CERTIFICATE... VII LIST OF ABBREVIATIONS AND ACRONYMS... VIII GLOSSARY... 9 PART 1. INTRODUCTION MUNICIPAL ENDORSEMENT THE MUNICIPALITY PURPOSE AND SCOPE OF THIS FLOOD EMERGENCY PLAN MUNICIPAL FLOOD PLANNING COMMITTEE RESPONSIBILITY FOR PLANNING, REVIEW AND MAINTENANCE OF THIS PLAN ENDORSEMENT OF THE PLAN 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 PART 3. RESPONSE ARRANGEMENTS INTRODUCTION Activation of Response Responsibilities Municipal Emergency Coordination Centre (MECC) Escalation STRATEGIC CONTROL PRIORITIES COMMAND, CONTROL AND COORDINATION Control Incident Controller (IC) Incident Control Centre (ICC) Divisions and Sectors Incident Management Team (IMT) iii -

4 3.3.6 Emergency Management Team (EMT) 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 CITY OF WHITTLESEA APPENDIX B - TYPICAL FLOOD PEAK TRAVEL TIMES TYPICAL TRAVEL TIMES HISTORICAL TRAVEL TIMES APPENDIX C1 PLENTY RIVER FLOOD EMERGENCY PLAN APPENDIX C2 MERRI CREEK FLOOD EMERGENCY PLAN APPENDIX C3 DAREBIN CREEK FLOOD EMERGENCY PLAN APPENDIX D - FLOOD EVACUATION ARRANGEMENTS APPENDIX E - FLOOD WARNING SYSTEMS APPENDIX F MAPS iv -

5 APPENDIX G CATCHMENT SCHEMATICS v -

6 Distribution List Copy No. Original Issue To: Name Griff Davis Organisation MEMP Committee Executive Officer and Deputy /MERO Hard Copy or via website 1 Kaye Falcke Council Office Copy 2 Kaye Falcke MECC 1 Copy 3 Kaye Falcke MECC 2 Copy 4 Cr Ricky Kirkham MEMPC Chairperson 5 Greg Scott MERO 6 Neil Hocking Deputy MERO 7 Tracey Mallett Deputy MERO 8 Kristen Jackson Deputy MERO 9 Russell Hopkins MRM 10 Snr Sgt Wayne Harvey MERC (Whittlesea Police Station) 11 Supt Steve Gleeson RERC VPC 12 Snr Sgt Stuart Morris Mill Park Police Station 13 Snr Sgt Paul Mellick Epping Police Station 14 Insp Brett Murphy VicPol REMI North West Metro Region 15 ICC VICSES Central RHQ Hard Copy 16 ICC VICSES Central West Hard Copy 17 Controller VICSES Whittlesea unit Hard Copy 18 Controller VICSES Broadmeadows Unit 19 Simone Corby Melbourne Water Floodplain Services Dept 20 Dan White DEPI Emergency Management Team Leader 21 Ranger in Charge Plenty Gorge Park Parks Victoria (Where appropriate) 22 Thomastown Team Manager Ambulance Victoria Thomastown branch 23 Whittlesea Team Manager Ambulance Victoria Whittlesea branch 24 Ken Williamson CFA Whittlesea/Diamond Valley Group 25 Gerry Hauke CFA Hume Group 26 Operations Manager CFA (District 14 Headquarters) 27 Steve DiCicco VicRoads Metro NW REMO 28 James Boyce Department of Human Services Northern Division Coordinator Emergency Management 29 Iain Butterworth Department of Health Regional EHO 30 Office of Emergency Support Coordinator SPAusnet 31 Paul Rasmussen 32 Frank Portelli Wholesale water supplier [Melbourne Water, Team Leader Hydrology and Flood Warning] Water Retailer [ Risk Manager Yarra Valley Water] 33 Phil Rumney MFB Northern Zone This Plan is available on the SES Website (link is included on Whittlesea website) Whittlesea Flood Emergency Plan A Sub-Plan of the MEMP September vi -

7 Document Transmittal Form / Amendment Certificate This Municipal Flood Emergency Plan (MFEP) will be amended, maintained and distributed as required by VICSES in consultation with City of Whittlesea. Suggestions for amendments to this Plan should be forwarded to VICSES Regional Office Central West, 239 Proximity Dr Sunshine West 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 Issue date of Flood Emergency Plan Version May April 2014 Sept 2014 Ross Butler/A Tuxworth K Falcke/A Tuxworth Plan and Maps Reviewed and Updated Minor amendments This Plan will be maintained on the City of Whittlesea and SES websites at and Whittlesea Flood Emergency Plan A Sub-Plan of the MEMP September vii -

8 List of Abbreviations and Acronyms The following abbreviations and acronyms are used in the Plan: AEP Annual Exceedance Probability AHD AIIMS AoCC ARI ARMCANZ AV BoM CEO CERA CFA CMA DH DHS DoI DEPI EMLO EMMV EMT EO FSL FO FWS FZ IC ICC IMS IMT LSIO MECC MEMP MEMPC MERC MERO MFB MRM PMF RCC RDO RERC RERCC SBO SCC SEWS SHERP SOP VicPol VICSES 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 and Resource Management Council of Australia and New Zealand Ambulance Victoria Bureau of Meteorology Chief Executive Officer Community Emergency Risk Assessment Country Fire Authority Catchment Management Authority Department of Health Department of Human Services Department of Infrastructure Department of Environment and Primary Industries Emergency Management Liaison Officer Emergency Management Manual Victoria Emergency Management Team Executive Officer Full Service Level Floodway Overlay Flood Warning System Floodway Zone Incident Controller Incident Control Centre Incident Management System Incident Management Team 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 Regional Emergency Response Coordinator Regional Emergency Response Coordination Centre Special Building Overlay State Control Centre Standard Emergency Warning System State Health Emergency Response Plan Standard Operating Procedure Victoria Police Victoria State Emergency Service - viii -

9 Glossary Below are terms defined for the purpose of this plan: Term Definition Drainage system A series of drains and waterways into which surface and storm water flows. Features of a drainage system can include underground pipe drains, open channels, retarding basins, floodways, waterway improvements, water quality works and environment protection measures. Overland flooding Inundation by local runoff caused by heavier than usual rainfall. Overland flooding can be caused by local runoff exceeding the capacity of an urban stormwater drainage system or by the backwater effects of mainstream flooding causing urban stormwater drainage system to overflow. Floodplain Area of land adjacent to a creek, river, estuary, lake, dam or artificial channel, which is subject to inundation. Natural drainage systems Flow paths which are largely undeveloped by human sources, these include rivers, streams, natural depressions and wetlands. All natural systems greater than 60 ha are managed by Melbourne Water. Hot spot A known flood problem area which has a history of repeat flooding of a road, crossing or property, often highlighted through anecdotal information and customer complaints. It is a localised issue which will vary from council to council. Runoff The amount of rainfall that enters the stormwater drainage system, (underground pipes, overland flow paths, floodway and waterways) after losses such as infiltration has been taken into account. Flash flooding Sudden unexpected flooding caused by local heavy rainfall or rainfall in another area. Often defined as flooding which occurs within six hours of the rain which causes flooding. Annual Recurrence Interval (ARI) Annual Exceedance Probability (AEP) Flood mapping The average, or expected, value of the period between exceedances of a given rainfall or flow total accumulated over a given duration The probability that a given total rainfall or flow is accumulated over a given duration will be exceeded in any one year The process where the extent of flooding is documented in mapping software based on flood studies and surface elevations - 9 -

10 Part 1. INTRODUCTION 1.1 Municipal Endorsement This Municipal Flood Emergency Plan (MFEP) has been prepared by City of Whittlesea with the authority of the MEMPC (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 City of Whittlesea Municipal Emergency Management Plan (MEMP), is consistent with the Emergency Management Manual Victoria (EMMV), the Victoria Flood Management Strategy (DNRE, 1998a), the Regional Flood Emergency Plan and the State Flood Emergency Plan and takes into account the outcomes of the Community Emergency Risk Assessment (CERA) process undertaken by the Municipal Emergency Management Planning Committee (MEMPC). This Municipal Flood Emergency Plan is a result of the cooperative efforts of the City of Whittlesea Flood Planning Committee and its member agencies. This Plan is endorsed by the City of Whittlesea MEMPC as a sub-plan to the MEMP. Endorsement.... Ray Jasper (Regional Manager VIC SES Central Regional) Date.... Chair Municipal Emergency Management Planning Committee Date

11 1.2 The Municipality An outline of City of Whittlesea 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 agreed arrangements for the planning, preparedness / prevention, response and recovery from flood incidents within the City of Whittlesea. As such, the scope of the Plan is to: Identify the Flood Risk to City of Whittlesea; Support the implementation of measures to minimise the causes and impacts of flood incidents within the City of Whittlesea; 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 This will be a sub-committee of the MEMPC. Membership of the City of Whittlesea Flood Planning Committee will comprise of the following representatives from the following agencies and organisations: VICSES (i.e. Unit Controller and Regional Officer Emergency Management) (Chair) City of Whittlesea Victoria Police (i.e. Municipal Emergency Response Co-ordinator) (MERC) Melbourne Water Department of Health (DH) as required Department of Human Services (DHS) as required Department of Environment and Primary Industry (DEPI) as required Bureau of Meteorology as required 1.5 Responsibility for Planning, Review and Maintenance of this Plan This Municipal Flood Emergency Plan must be maintained in order to remain effective. VICSES through the Committee has responsibility for preparing, reviewing, maintaining and distributing this plan. The Flood Planning Committee will meet at least once per year. The Plan should be reviewed: Following any new flood study; Change in non-structural and/or structural flood mitigation measures including rating curves for monitoring stations; After the occurrence of a significant flood event within the Municipality to review and where necessary amend arrangements and information contained in this Plan

12 1.6 Endorsement of the Plan The MFEP will be circulated to Flood Planning Committee members 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 MEMP. Part 2. PREVENTION / PREPAREDNESS ARRANGEMENTS 2.1 Community Awareness for all Types of Flooding VICSES with the endorsement of the City of Whittlesea will coordinate community education programs for flooding within the council area e.g. FloodSafe / StormSafe. A FloodSafe Community Education / Communication Plan has been developed. 2.2 Structural Flood Mitigation Measures The following summary of structural flood mitigation measures exist within the Council area: Levees (location, owner, maintenance responsibility and protection levels). Retarding Basins (location, owner, maintenance responsibility and protection levels) etc. Refer to Appendix C1,C2 and C3 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 Flood Warning Arrangements for flood warnings are contained within the State Flood Emergency Plan, 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 There are no Flood Wardens within the municipality

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 City of Whittlesea. These agencies will be engaged through the EMT. The general roles and responsibilities of supporting agencies are as agreed within the City of Whittlesea MEMP, EMMV (Part 7 Emergency Management Agency Roles ), State Flood Emergency Plan and Regional Flood Emergency 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 City of Whittlesea 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 (Part 3.12 Response Management Arrangements Coordination)

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 the 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 and 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 EMMV Part 3. The specific details of the Command, Control and Coordination arrangements for this Plan are provided in Appendix C1, C2 and 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 DEPI as the Control Agency responsible for dam safety, water and sewerage asset related incidents and other emergencies. All flood response activities within the City of Whittlesea, 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 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 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 Ferntree Gully Woori Yallock 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 Whittlesea Unit Sector To be determined on an as needs basis Pre-determined Division Command locations are: Whittlesea VICSES Unit Incident Management Team (IMT) The Incident Controller will form an Incident Management Team (IMT). Refer to 3 of the EMMV for guidance on IMTs and Incident Management Systems (IMSs) 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

16 Organisations, including City of Whittlesea, 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 EMMV Part Response Management Arrangements Control, Emergency Management Team EMT) for guidance 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 (Appendices C1, C2 and C3). 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 the need for further resources in regard to personnel, property protection, flood rescue and air support Notify and brief the appropriate officers: Regional Control Centre (RCC) (if established); State Control Centre (SCC) (if established); Council MERO; 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 The Incident Controller or VICSES RDO (until an incident controller is appointed) will undertake actions as defined within the flood intelligence cards (appendices C1, C2 and C3). 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 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:

17 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; Fax Stream; Newsletters; Letter drops; Social media and/or social networking sites (i.e. twitter and/or Facebook). Refer to Appendices C1, C2 C3 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

18 Responsibility for public information, including media briefings, rest with VICSES as the Control Agency. Other agencies such as CFA, DEPI 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 Initial Impact Assessment A rapid impact assessment can be conducted in accordance with Part 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; 3. Where it 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 to 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)

19 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 Appendices C1, C2 and C3 for response arrangements for flash flood events. 3.9 Evacuation In Victoria evacuation is largely voluntary, however in particular circumstances, legislation provides some emergency services with authority to remove people from areas or prohibit their entry. The decision to recommend or warn people to prepare to evacuate or to evacuate immediately rests with the Incident Controller. It is the choice of individuals as to how they respond to this recommendation. Once the decision is made VicPol is 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 Part 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 City of Whittlesea 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. The Rescue Manager, appointed by VicPol, is to coordinate rescues with support from VICSES Units 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:

20 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 indicate 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 City of Whittlesea 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 to 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. Refer to Appendices C1, C2 and C3 for further specific details of essential infrastructure requiring protection Disruption to Services Disruption to services other than essential community infrastructure and property can occur in flood events. Refer to Appendix C1, C2 and C3 for specific details of likely disruption to services and proposed arrangements to respond to service disruptions in City of Whittlesea

21 3.15 Road Closures City of Whittlesea 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. City of Whittlesea 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 is responsible for designated main roads and highways and Council is responsible for the designated local road network. VicRoads will communicate community information regarding road closures Dam Failure DEPI 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 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 responsible 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 City of Whittlesea 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 City of Whittlesea are detailed in the City of Whittlesea MEMP and/or the Recovery Sub-plan. 4.2 Emergency Relief The decision to recommend the opening of an emergency relief centre(s) 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 Part 4.4 of the EMMV for details of the range of emergency relief services that may be provided. Details of the relief arrangements are available in the MEMP. 4.3 Animal Welfare Refer to MEMP 5.8 Agencies Assisting in Relief and Recovery for animal welfare issues. 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 4.24 of the EMMV

23 APPENDIX A - FLOOD THREATS FOR CITY OF WHITTLESEA GENERAL The Whittlesea municipality is located approximately 20 kilometres north of Melbourne. The municipality is one of the largest local government areas in Melbourne covering an area of 487 square kilometres. About 30 percent of the municipality is urban and 70 percent is rural. The municipality has 17 major suburbs and rural communities including Beveridge, Bundoora, Donnybrook, Doreen, Eden Park, Epping, Humevale, Kinglake West, Lalor, Mernda, Mill Park, South Morang, Thomastown, Whittlesea, Wollert, Woodstock and Yan Yean. The City of Whittlesea is bordered by the City of Hume to the west and Nillumbik Shire Council to the east, the Cities of Darebin and Banyule to the south, and Mitchell and Murrindindi Shire Councils to the north. Whittlesea has a diverse landscape character and many significant environmental features including the Plenty Gorge Parklands, the Kinglake National Park, extensive River Redgum Woodlands, grasslands, and significant waterways, such as the Plenty River, and Darebin and Merri Creeks. Plenty Road and High Street form the major north-south transport routes through the municipality, and a series of roads, such as Mahoneys Road, Settlement Road, McDonalds Road, Findon Road, Cooper Street and Donnybrook Road cut across the municipality in an east-west direction. The Western Ring Road, which traverses the southern section of the City, provides an important passenger vehicle and freight link to the Hume Highway. Whittlesea is a rapidly growing and diverse community. It has one of the most culturally diverse populations in Victoria. In June 2013, the Whittlesea municipality had an estimated population of 186,000; it is one of the fastest growing municipalities in Australia, with the population expected to reach 300,000 in the next 20 years. In 2013, there were around 62,700 private residential dwellings in Whittlesea with around 3,100 new dwelling commencements per year. 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. Whittlesea is located in the Yarra catchment which drains into Port Phillip Bay. There are many rivers and creeks in the municipality with three main waterways the Plenty River, Darebin Creek and Merri Creek

24 FLASH FLOODING and 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 three major waterways running through the City of Whittlesea: - Plenty River, which begins in the Kinglake National Park and flows north to south down the east side of the Municipality, forming its eastern boundary from South Morang. See Figure A1 for more details; - Darebin Creek, which also flows north to south, beginning in the centre of the municipality in Donnybrook, it exits at the municipality s southern boundary, flowing into the Darebin municipality. A number of underground drains join up with Darebin Creek to form a key drainage system for the southern urban area of the municipality. See Figure A2 for more details; - Merri Creek forms the western boundary to the municipality of Whittlesea, sharing its banks with the City of Hume. Flowing south, the Creek exits City of Whittlesea at the south-west boundary of the municipality, entering the municipalities of Moreland and Darebin. See Figure A3 for more details. The other predominant waterways and drains within the City of Whittlesea are listed in the following table. Waterway / Drain Darebin Creek (Middle) Edgars Creek Bundoora Drain Henderson Road Creek Central Creek Thomastown West Drain Benaroon Drive Drain South Morang Drain (Lower) Findons Creek West Merri Creek Darebin Creek (Upper) Plenty River (Upper) Plenty River (Middle) Waterway / Drain Barbers Creek (Lower) Barbers Creek (Upper) Scrubby Creek Bruces Creek (Lower) Bruces Creek (Upper) Yarra Creek Plenty River West Drains to Yan Yean Reservoir Running Creek Deep Creek Kangaroo Creek Curly Sage Creek

25 Figure A1 Plenty River

26 Figure A2 Darebin Creek

27 Figure A3 Merri Creek Schematic

28 FLOOD MITIGATION SYSTEMS Flood mitigation has predominantly been developed in the form of 14 Retarding Basins and one Levee. These flood mitigation systems are listed in the tables below. Further details concerning the retarding basins will be added when information becomes available. To view their locations and connecting waterway/drainage systems, see Map B in Appendix F. RETARDING BASINS Melbourne Water Retarding Basin On Drain/ Waterway Spillway Crest Level Full Supply Level 1% AEP Flood Level Development Boulevard Plenty River 131.3m AHD 131.9m AHD Unknown Embankment Crest Height 3.2m (131.9m AHD) Storage Capacity ANCOLD Hazard Rating Houses In Flow Path Melway Reference Unknown Very Low Nil 10D3 Diosma Way Plenty River 122.6m AHD 123.3m AHD Unknown 4m ~4.0ML Very Low Nil 10D3 Findon Creek Findon Creek West Branch N/A m AHD m AHD 4.5m (146.00m AHD) 62ML Very Low Nil 182D5 Great Brome Ave Epping Drain 146.5m AHD 145.8m AHD 146.5m AHD 147.0m AHD 5.95ML Unclassified Unknown 182A7 Herlitz Drive Yale Dr Drain 146.0m AHD m AHD Unknown 1.26m (146.76m AHD) 5.0ML Unclassified Unknown 181J6 Incana Drive Plenty River 112.3m AHD 112.9m AHD Unknown 3m ~1.0ML Very Low Nil 10D4 Mernda Drain Mernda Drain 162.8m AHD Unknown Unknown 1.0m 12.8ML Low 4 390J8 Mernda South Cravens Rd North Drain 164.1m AHD m AHD Unknown 3.4m Unknown Unclassified Unknown 390E9 Robin Place Thomas St Drain m AHD m AHD Unknown 7.15m (128.25m AHD) 20.7ML Very Low Nil 10G1 Woodland Waters Simons Creek 161.3m AHD 162.2m AHD 162.2m AHD N/A Unknown Very Low Nil 183F1 The Palisades Hendersons Rd Drain 163.8m AHD 164.9m AHD 163.8m AHD N/A Unknown Unclassified N/A 183B3 University Hill University Hill Creek 96.0m AHD Unknown 97.20m AHD (97.50m AHD) ~20ML Unclassified Unknown 10C8 Warbler Walk Thomas St Drain 114.5m AHD 115.6m AHD Unknown 5.85m (115.6m AHD) 16.8ML Very Low Nil 10G1 The Houses in Flow Path figure relates to the number of houses that are at risk from damage should the retarding basin sunny day fail

29 City of Whittlesea Retarding Basin On Drain/ Waterway Spillway Crest Level Full Supply Level 1% AEP Flood Level Embankment Crest Height Storage Capacity ANCOLD Hazard Rating Houses In Flow Path Melway Reference Lipton Drive CoW Local Drain 97.17m AHD 97.17m AHD Unknown 1.8m Unknown Unclassified Unknown 8F10 LEVEES City of Whittlesea Levee Reach Side Levee Height Levee Length Levee Shape Levee Material Houses in Flow Path Melway Reference Laurimar Park Estate Levee Fenwick Street to Yan Yean Road North Unknown 100m Trapezoid Earth H6 The Houses in the Flow Path figure relate to the number of houses that are at risk from damage should the retarding basin sunny day fail

30 FLOOD WARNING SYSTEM Within the City of Whittlesea, Melbourne Water has 9 hydrographic monitoring sites along the 3 major waterways in the Municipality. These are outlined in the table below. Hydrographic Monitoring Station Station No. Owner Gauge Type Melway Reference Toorourrong Reservoir A Melbourne Water Reservoir Level and Rain VicMap Central 6364G15 Plenty River at Whittlesea A Melbourne Water River Level 246J9 Plenty River at Mernda A Melbourne Water Plenty River at Greensborough A Melbourne Water Merri Creek at Craigieburn North A Melbourne Water River Level and Rain River Level and Rain River Level and Rain 390K10 10J9 387H3 Merri Creek at Craigieburn East A Melbourne Water River Level 387E10 Merri Creek at Somerton B Melbourne Water Darebin Creek at Epping A Melbourne Water Darebin Creek at Bundoora A Melbourne Water River Level and Rain River Level and Rain River Level and Rain 180J10 182D11 Melbourne Water has assigned Flood Class Levels at the Somerton flow gauge along Merri Creek. There is currently 1 Melbourne Water flood warning gauge on Merri Creek that could be used to assist with public safety. This is at Somerton. This gauge with flood class levels established is outlined in the table below. The Bureau does not issue formal flood warnings for Plenty River or Darebin Creek in the City of Whittlesea. 9F12 Hydrographic Monitoring Station River / Creek Flood Class Level (m) Minor Moderate Major Merri Creek at Somerton 3.4m 3.7m 4.4m At this site on Merri Creek, the Bureau of Meteorology (the Bureau) in consultation with Melbourne Water will issue flood warnings if levels reach those classified above. This warning will be placed on the Bureau s website ( While the City of Whittlesea monitors these warnings in times of high rainfall, there are no specific guidelines to advise how these situations should be responded to

31 HISTORIC FLOODS Significant floods to have occurred within the City of Whittlesea are as follows in the table below. Event Craigieburn Nth Merri Creek Height Somerton Merri Creek Height Epping Darebin Creek Height Bundoora Darebin Creek Height Mernda Plenty River Height Greensborough Plenty River Height Minor Unavailable 3.4m Unavailable Unavailable Unavailable Unavailable Moderate Unavailable 3.7m Unavailable Unavailable Unavailable Unavailable Major Unavailable 4.4m Unavailable Unavailable Unavailable Unavailable Feb m Jul m Sep m m - - Jul m - - Mar m m Nov m m Feb m th May m 4.95m m 4.90m 7.77m 8 th Apr m th Jun m 2.93m 0.71m 0.58m th Aug m 3.11m 1.41m 2.15m 1.31m - 19 th Nov m 2.88m 1.50m 2.60m 2.55m - 16 th Oct m 3.36m 1.22m 2.68m 2.22m 3.65m 30 th Jul m 3.87m 2.22m 3.28m 3.24m 5.40m 10 th Jun m 3.74m 2.09m 3.15m 3.02m 4.84m 18 th Jul m 3.53m 2.08m 3.23m 1.78m 2.06m 24 th Apr m 2.93m 1.98m 1.63m 3.19m 3.97m 3 rd Feb m 4.28m 2.52m 2.60m 3.79m 4.44m 28 th Nov m m 1.15m 3.11m 4.33m

32 DAM FAILURE Flooding resulting from failure of the following dams is likely to cause significant structural and community damage within the City of Whittlesea. See Dam Failure in Part 3 of this Plan for more information. Note that if the storage capacity is reached and water flows over the spillway, this is not to be referred to as a flow release or a storage breach or failure. Dam Name Location Owner Toorourrong Reservoir Whittlesea Melbourne Water Dam Capacity at Full Supply Level 195ML (reduced from 300ML due to Silt) Full Supply Level m AHD Yan Yean Reservoir Yan Yean Melbourne Water 30,266ML m AHD VicMap Reference Central 6364 G15 Central 6448 E10 Service Reservoirs located within the Municipality are listed below. Service Reservoir Name Location Owner Material Morang Steel Tank No.1 Morang Steel Tank No.2 Morang Steel Tank No.3 Morang Steel Tank No.4 Williamsons Rd, South Morang Williamsons Rd, South Morang Williamsons Rd, South Morang Williamsons Rd, South Morang Reservoir Capacity Melway Reference Melbourne Water Steel Tank 29.10ML 183F10 Melbourne Water Steel Tank 29.10ML 183F10 Melbourne Water Steel Tank 40.90ML 183F10 Melbourne Water Steel Tank 40.90ML 183F10 Quarry Hill Steel Tank Quarry Hills Park, Epping Melbourne Water Steel Tank 35.30ML 182J7 Yan Yean Treated Water Arthurs Creek Rd, Yan Yean Parks Victoria Steel Tank Unknown 391D1-32 -

33 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 information 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. Typical Travel Times Location From (gauge) PLENTY RIVER MERRI CREEK Location To (gauge) Typical Travel Time Mernda Greensborough Between 2 to 5 hours Craigieburn North Somerton Between (-4)* to 2 hours DAREBIN CREEK Epping Bundoora Between (-5)* to 1 hours Comments * Note that along Merri Creek the flood peak may occur downstream at Somerton before occurring upstream at Craigieburn North. This may be due to the location of the thunderstorm passing through the catchment downstream of the Craigieburn North gauge, or because of the urban environment found around Somerton, floodwaters entering from local stormwater drains may arrive at the Somerton gauge before floodwaters travel downstream from Craigieburn North. A similar situation to Merri Creek is also possible along Darebin Creek where the flood peak may arrive downstream at Bundoora before occurring upstream at Epping. The conditions noted above for Merri Creek are the likely causes for this happening on Darebin Creek too

34 2. Historical Travel Times Flood Event PLENTY RIVER Location From (gauge) Location To (gauge) Flood Peak Travel Time Flood Class At: LOWER PLENTY 29 th July 1987 Mernda Greensborough 3 hours Minor 11 th June 1989 Mernda Greensborough 4 hours Minor 24 th April 2001 Mernda Greensborough 5 hours Below Minor 3 rd February 2005 Mernda Greensborough 4 hours Below Minor 28 th November 2010 Mernda Greensborough 4 hours Below Minor MERRI CREEK SOMERTON 30 th June 1977 Craigieburn North Somerton -3 hours Below Minor 8 th August 1978 Craigieburn North Somerton -5 hours Below Minor 19 th November 1978 Craigieburn North Somerton -1 hour Below Minor 16 th October 1983 Craigieburn North Somerton 1 hour Below Minor 29 th July 1987 Craigieburn North Somerton -2 hours Moderate 10h June 1989 Craigieburn North Somerton 0 hours Minor 14 th December 1989 Craigieburn North Somerton 1 hour Below Minor 18 th July 1990 Craigieburn North Somerton 1 hour Below Minor 27 th December 1993 Craigieburn North Somerton -1 hour Below Minor 27 th December 1999 Craigieburn North Somerton -13 hours Below Minor 3 rd December 2003 Craigieburn North Somerton 2 hours Below Minor 3 rd February 2005 Craigieburn North Somerton -4 hours Moderate DAREBIN CREEK - 30 TH July 1987 Epping Bundoora 1 hour No Flood Class 5 th April 1989 Epping Bundoora 1 hour No Flood Class 10 th June 1989 Epping Bundoora 0 hours No Flood Class 18 th July 1990 Epping Bundoora -3 hours No Flood Class 5 th December 1992 Epping Bundoora 1 hour No Flood Class 23 rd June 1996 Epping Bundoora -5 hours No Flood Class 3 rd December 2003 Epping Bundoora 1 hour No Flood Class 3 rd February 2005 Epping Bundoora -5 hours No Flood Class 5 th February 2011 Epping Bundoora 0 hours No Flood Class 25 th December 2011 Epping Bundoora 0 hours No Flood Class

35 APPENDIX C1 PLENTY RIVER FLOOD EMERGENCY PLAN OVERVIEW OF FLOODING CONSEQUENCES Whittlesea, Yan Yean, Mernda, South Morang and Mill Park are located between 20-30km north of Melbourne in a mixed urban fringe and rural town setting. Plenty River is the prominent watercourse in the area, flowing from the north and the Kinglake National Park, through the five towns/suburbs before leavin the City of Whittlesea and entering the City of Banyule. High Intensity, short duration rainfall events can cause flash flooding in and around Whittlesea, Yan Yean, Mernda, South Morang and Mill Park, while prolonged rainfall may see Plenty River flood. The area sees a mixture of flat and gradually undulating terrain leading to both moderate and slow water movement. Flooding may last for a number of days on areas of flat terrain. See Maps 12 to 18 in Appendix F for more insight into flooding in the area. WARNING TIMES Warning of potential flooding is now available along Plenty River downstream at Mernda and Greensborough with the upgrade of the Whittlesea Gauge in August 2014 which is now telemetric. Because of the lack of historical data, accurate warning times are not yet known. However, once Whittlesea Showgrounds becomes inundated, flooding will take approximately 1 hour to reach Cades Rd, Whittlesea. Hydrographic Monitoring Station Station No. Owner Gauge Type Melway Reference Toorourrong Reservoir A Melbourne Water Reservoir Level and Rain VicMap Central 6364G15 Plenty River at Whittlesea A Melbourne Water River Level 246J9 Plenty River at Mernda A Melbourne Water Plenty River at Greensborough A Melbourne Water River Level and Rain River Level and Rain 390K10 These Gauges may provide some warning of expected flooding. See the Melbourne Water website for more information on these gauges: and_river_level_data.asp. It is advised that residents monitor the Bureau of Meteorology s website and the VicSES website for any thunderstorm, flood or severe weather warnings present for their area. 10J9-35 -

36 AREAS AFFECTED Figure C1 Areas affected around Whittlesea, Yan Yean, Mernda, South Morang and Mill Park in the City of Whittlesea

37 PROPERTIES AFFECTED Properties listed in the table below are at risk from property flooding. As more intelligence becomes available, this list may grow. Residences / Businesses at risk from Property Flooding in a 1% AEP event No. of Properties in Street Street Suburb Along Melbourne Water Watercourse Flood Risk Type 1 Beech Street Whittlesea Plenty River Riverine 3 Whittlesea-Yea Road Whittlesea Plenty River Riverine 4 Laurel Road Whittlesea Plenty River Riverine 12 Gardenia Place Whittlesea Plenty River Riverine 2 Cades Road Yan Yean Plenty River Riverine 1 Plenty Road Yan Yean Plenty River Riverine 3 Dunnetts Road Yan Yean Plenty River Riverine 1 Hazel Glen Drive Mernda Plenty River Riverine 1 Hayes Road Mernda Plenty River Riverine Totals 28 ISOLATION As occurred in the flood of May 1974, an isolation risk exists for Whittlesea. Major arterial roads connecting Whittlesea may be cut for some time when Plenty River and surrounding tributaries are flooded. 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 areas around Whittlesea, Yan Yean, Mernda, South Morang and Mill Park are expected to remain predominantly dry during an intense rainfall event. ROAD CLOSURES The following roads are subject to closure during flooding around Whittlesea, Yan Yean, Mernda, South Morang and Mill Park. Check the VicRoads website for more details: VicRoads Roads affected in a 1% AEP event Whittlesea-Yea Road, Whittlesea at the Whittlesea Showgrounds Whittlesea City Council Roads affected in a 1% AEP event MERNDA Dunnetts Road Laurel Street Hayes Road Reservoir Road McPhees Road Hazel Glen Drive WHITTLESEA Showgrounds Road YAN YEAN Chandler Avenue Arthurs Creek Road Gardenia Avenue Cades Road Kinglake View

38 FLOOD MITIGATION RETARDING BASINS Melbourne Water Retarding Basin On Drain/ Waterway Spillway Crest Level Full Supply Level 1% AEP Flood Level Development Boulevard Plenty River 131.3m AHD 131.9m AHD Unknown Embankment Crest Height 3.2m (131.9m AHD) Storage Capacity ANCOLD Hazard Rating Houses In Flow Path Melway Reference Unknown Very Low Nil 10D3 Diosma Way Plenty River 122.6m AHD 123.3m AHD Unknown 4m ~4.0ML Very Low Nil 10D3 Incana Drive Plenty River 112.3m AHD 112.9m AHD Unknown 3m ~1.0ML Very Low Nil 10D4 Mernda Drain Mernda Drain 162.8m AHD Unknown Unknown 1.0m 12.8ML Low 4 390J8 Robin Place Thomas St Drain m AHD m AHD Unknown 7.15m (128.25m AHD) 20.7ML Very Low Nil 10G1 University Hill University Hill Creek 96.0m AHD Unknown 97.20m AHD (97.50m AHD) ~20ML Unclassified Unknown 10C8 Warbler Walk Thomas St Drain 114.5m AHD 115.6m AHD Unknown 5.85m (115.6m AHD) 16.8ML Very Low Nil 10G1 City of Whittlesea Retarding Basin On Drain/ Waterway Spillway Crest Level Full Supply Level 1% AEP Flood Level Embankment Crest Height Storage Capacity ANCOLD Hazard Rating Houses In Flow Path Lipton Drive CoW Local Drain 97.17m 97.17m Unknown 1.8m Unknown Unclassified Unknown 8F10 The Houses in Flow Path figure relates to the number of houses that are at risk from damage should the retarding basin sunny day fail. LEVEES Melway Reference Melbourne Water/City of Whittlesea Levee Laurimar Park Estate Levee Reach Fenwick Street to Yan Yean Road Side Levee Height Levee Length Levee Shape Levee Material Houses in Flow Path Melway Reference North Unknown 100m Trapezoid Earth H6 No formal Pumping Stations exist around Whittlesea, Yan Yean, Mernda, South Morang and Mill Park

39 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. FLOOD IMPACTS and REQUIRED ACTIONS The table below is a breakdown of the number of properties impacted in a 1% AEP (100yr ARI) event. Refer to the following intelligence card/s for Whittlesea, Mernda and Greensborough for more details. Land Use Impacted in a 1% AEP Event Amount Residential 20 Business 0 Industrial 1 Public Land 0 Rural 7 Total

40 FLOOD INTELLIGENCE CARD WHITTLESEA GAUGE, PLENTY RIVER Version 2 January 2014 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. This Flood Intelligence Card publication is presented by the Victoria State Emergency Service for the purpose of disseminating emergency management information. The contents of the information have not been independently verified by the Victoria State Emergency Service. No liability is accepted for any damage, loss or injury caused by errors or omissions in this information or for any action taken by any person in reliance upon it. LOCATION Evelyn Street, Whittlesea MINOR: NOT ESTABLISHED MELWAY REFERENCE: 246J9 MODERATE: NOT ESTABLISHED STREAM: Plenty River MAJOR NOT ESTABLISHED GAUGE NUMBER: A LEVEE HEIGHT: N/A GAUGE ZERO: 190.5m AHD TELEMETRIC/MANUAL Telemetric GAUGE TYPE Level HIGHEST RECORDED FLOOD: N/A (Gauge Installed April 2013) River Height (m) and/or River Flow (m 3 /s) Unknown Flood Class or Annual Exceedance Probability 28 th November 2010 Flood Level Event Summary Consequence / Impact Whittlesea Showgrounds flooded Showgrounds Road and Yea Road flooded Cades Road, Whittlesea flooded Action 2.0m 1% AEP (100 year ARI flow) Property Flooding 20 Properties in Total 1 business on Beech Street, Whittlesea 3 residences on Whittlesea-Yea Road, Whittlesea 4 residences on Laurel Road, Whittlesea 12 residences on Gardenia Place, Whittlesea Community Infrastructure Affected Whittlesea Showgrounds, Showgrounds Road, Whittlesea

41 River Height (m) and/or River Flow (m 3 /s) Flood Class or Annual Exceedance Probability Consequence / Impact Whittlesea Park, Yea Road, Whittlesea Whittlesea Community Activity Centre, Laurel Road, Whittlesea Whittlesea Secondary College, Laurel Street, Whittlesea Water Over Road Kinglake View, Whittlesea McPhees Road, Whittlesea Chandler Avenue, Whittlesea Whittlesea-Yea Road, Whittlesea at Whittlesea Showgrounds Showgrounds Road, Whittlesea Laurel Street, Whittlesea Gardenia Avenue, Whittlesea Cades Road, Yan Yean Action

42 FLOOD INTELLIGENCE CARD MERNDA GAUGE, PLENTY RIVER Version 2 January 2014 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. This Flood Intelligence Card publication is presented by the Victoria State Emergency Service for the purpose of disseminating emergency management information. The contents of the information have not been independently verified by the Victoria State Emergency Service. No liability is accepted for any damage, loss or injury caused by errors or omissions in this information or for any action taken by any person in reliance upon it. LOCATION Bridge Inn Rd, Mernda MINOR: NOT ESTABLISHED MELWAY REFERENCE: 390K10 MODERATE: NOT ESTABLISHED STREAM: Plenty River MAJOR NOT ESTABLISHED GAUGE NUMBER: A LEVEE HEIGHT: N/A GAUGE ZERO: m AHD TELEMETRIC/MANUAL Telemetric GAUGE TYPE River Level and Rain HIGHEST RECORDED FLOOD: 4.90m (15 th May 1974) River Height (m) and/or River Flow (m 3 /s) 3.11m Flood Class or Annual Exceedance Probability 28 th November 2010 Flood Level Event Summary Consequence / Impact Arthurs Creek Road and Recreation Road flooded Action 4.65m 1% AEP (100 year ARI flow) Property Flooding 8 Properties in Total 2 residences on Cades Road, Yan Yean 1 residence on Plenty Road, Yan Yean 3 residences on Dunnetts Road, Yan Yean 1 residence on Hazel Glen Drive, Mernda 1 residence on Hayes Road, Mernda Water Over Road Cades Road, Yan Yean Dunnetts Road, Yan Yean

43 River Height (m) and/or River Flow (m 3 /s) Flood Class or Annual Exceedance Probability Reservoir Road, Yan Yean Consequence / Impact Action Arthurs Creek Road, Yan Yean Hazel Glen Drive, Mernda Hayes Road, Mernda 4.90m 15 th May 1974 Flood Level Event Summary Nil information available 5.07m Water Over Road Bridge Inn Road, Mernda at Plenty River crossing

44 FLOOD INTELLIGENCE CARD GREENSBOROUGH GAUGE, PLENTY RIVER Version 2 January 2014 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. This Flood Intelligence Card publication is presented by the Victoria State Emergency Service for the purpose of disseminating emergency management information. The contents of the information have not been independently verified by the Victoria State Emergency Service. No liability is accepted for any damage, loss or injury caused by errors or omissions in this information or for any action taken by any person in reliance upon it. LOCATION Maroondah Aqueduct Crossing, Corowa Crescent, Greensborough MINOR: NOT ESTABLISHED MELWAY REFERENCE: 10J9 MODERATE: NOT ESTABLISHED STREAM: Plenty River MAJOR NOT ESTABLISHED GAUGE NUMBER: A LEVEE HEIGHT: N/A GAUGE ZERO: 39.97m AHD TELEMETRIC/MANUAL Telemetric GAUGE TYPE River Level and Rain HIGHEST RECORDED FLOOD: 7.77m (15 th May 1974) River Height (m) and/or River Flow (m 3 /s) Flood Class or Annual Exceedance Probability Consequence / Impact Action 7.7m 1% AEP (100 year ARI flow) 7.77m 15 th May 1974 Flood Level Event Summary Nil Information available

45 APPENDIX C2 MERRI CREEK FLOOD EMERGENCY PLAN OVERVIEW OF FLOODING CONSEQUENCES Merri Creek flows from north to south along the western boundary of the City of Whittlesea. Beveridge, Donnybrook, Wollert, Epping, Lalor and Thomastown are towns/suburbs that Merri Creek runs through or adjacent to. At present, there is little development and infrastructure at risk from flooding along Merri Creek apart from a small number of properties and roads. The largest flood to affect the area was on the 15 th May WARNING TIMES Warnings are available for flooding expected along Merri Creek at Somerton. For other hydrographic/telemetry (river gauges) within the Municipality, Melbourne Water does not provide any flood warning service at this point, due to the generally short warning times available. River Gauge Station No. Owner Gauge Type Melway Reference Wallan Melbourne Water Rain 646B12 Merri Creek at Summerhill Road, Craigieburn A Melbourne Water River Level and Rain 387H3 Merri Creek at Craigieburn Road East, Craigieburn A Melbourne Water River Level 387E10 Merri Creek at Somerton A Melbourne Water River Level and Rain 180J9 These Gauges may provide some warning of expected flooding. See the Melbourne Water website for more information on these gauges: and_river_level_data.asp. It is advised that residents monitor the Bureau of Meteorology s website and the VicSES website for any thunderstorm, flood or severe weather warnings present for their area

46 AREAS AFFECTED Figure C2 Areas affected along Merri Creek in the City of Whittlesea

47 PROPERTIES AFFECTED Properties listed in the table below are at risk from property flooding. As more intelligence becomes available, this list may grow. Residences / Businesses at risk from Property Flooding in a 1% AEP event No. of Properties in Street Street Suburb Along Melbourne Water Watercourse Flood Risk Type 2 Merriang Road Beveridge Merri Creek Riverine 1 Trawalla Avenue Thomastown Merri Creek Riverine Totals 3 ISOLATION No major isolation risks exist for areas around Beveridge, Donnybrook, Wollert, Epping, Lalor and Thomastown. 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 areas around Beveridge, Donnybrook, Wollert, Epping, Lalor and Thomastown are expected to remain predominantly dry during an intense rainfall event. ROAD CLOSURES The following roads are subject to closure during flooding around Beveridge, Donnybrook, Wollert, Epping, Lalor and Thomastown. Check the VicRoads website for more details: VicRoads Roads flooded in a 1% AEP event Meriiang Road, Beveridge near Janna Road and Beveridge Road Whittlesea City Council Roads flooded in a 1% AEP event BEVERIDGE Beveridge Road DONNYBROOK Langley Park Drive FLOOD MITIGATION No formal Retarding Basins, Pumping Stations or Levees exist around Beveridge, Donnybrook, Wollert, Epping, Lalor and Thomastown. 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

48 Response Plan (EMMV Part 3). During significant events, VICSES will conduct incident management using multi-agency resources. FLOOD IMPACTS and REQUIRED ACTIONS The table below is a breakdown of the number of properties impacted in a 1% AEP (100yr ARI) event. Refer to the following intelligence card/s for Craigieburn and Somerton for more details. Land Use Impacted in a 1% AEP Event Amount Residential 0 Business 0 Industrial 1 Public Land 0 Rural 2 Total

49 FLOOD INTELLIGENCE CARD CRAIGIEBURN GAUGE, MERRI CREEK Version 2 February 2014 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. This Flood Intelligence Card publication is presented by the Victoria State Emergency Service for the purpose of disseminating emergency management information. The contents of the information have not been independently verified by the Victoria State Emergency Service. No liability is accepted for any damage, loss or injury caused by errors or omissions in this information or for any action taken by any person in reliance upon it. LOCATION SUMMERHILL ROAD, CRAIGIEBURN (200m downstream of single lane bridge) MINOR: NOT ESTABLISHED MELWAY REFERENCE: 387H7 MODERATE: NOT ESTABLISHED STREAM: MERRI CREEK MAJOR NOT ESTABLISHED GAUGE NUMBER: A LEVEE HEIGHT: N/A GAUGE ZERO: m AHD TELEMETRIC/MANUAL TELEMETRIC GAUGE TYPE RIVER LEVEL and RAIN HIGHEST RECORDED FLOOD: 4.90m (15 th May 1974) River Height (m) and/or River Flow (m 3 /s) 3.00m (70m 3 /s) Flood Class or Annual Exceedance Probability 20% AEP (5 year ARI flow) Nil in City of Whittlesea Consequence / Impact Action 3.50m (100m 3 /s) 10% AEP (10 year ARI flow) Nil in City of Whittlesea 4.00m (140m3/s) 5% AEP (20 year ARI flow) Nil in City of Whittlesea 4.60m (190m 3 /s) 2% AEP (50 year ARI flow) Nil in City of Whittlesea 4.90m (220m 3 /s) 1% AEP (100 year ARI flow) 15 th May 1974 Flood Level Property Flooding 2 Properties in Total 2 properties on Merriang Road, Beveridge between Beveridge Road and Janna Road Water Over Road

50 River Height (m) and/or River Flow (m 3 /s) Flood Class or Annual Exceedance Probability Consequence / Impact Beveridge Road, Beveridge near Merriang Road Action Merriang Road, Beveridge near Janna Road and Beveridge Road Langley Park Drive, Donnybrook

51 FLOOD INTELLIGENCE CARD SOMERTON GAUGE, MERRI CREEK Version 2 February 2014 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. This Flood Intelligence Card publication is presented by the Victoria State Emergency Service for the purpose of disseminating emergency management information. The contents of the information have not been independently verified by the Victoria State Emergency Service. No liability is accepted for any damage, loss or injury caused by errors or omissions in this information or for any action taken by any person in reliance upon it. LOCATION COOPER STREET, SOMERTON (200m North of Bridge) MINOR: 3.4m MELWAY REFERENCE: 180 J9 MODERATE: 3.7m STREAM: MERRI CREEK MAJOR 4.4m GAUGE NUMBER: A LEVEE HEIGHT: N/A GAUGE ZERO: m AHD TELEMETRIC/MANUAL TELEMETRIC GAUGE TYPE RIVER LEVEL and RAIN HIGHEST RECORDED FLOOD: 4.90m (15 th May 1974) River Height (m) and/or River Flow (m 3 /s) Flood Class or Annual Exceedance Probability Consequence / Impact Action 3.3m Bank Full Level 3.4m (100m 3 /s) MINOR FLOOD LEVEL Nil in City of Whittlesea 3.7m (117m 3 /s) MODERATE FLOOD LEVEL Nil in City of Whittlesea 4.4m 5.2m (250m 3 /s) MAJOR FLOOD LEVEL 1% AEP (100 year ARI flow) (Major) Nil in City of Whittlesea Property Flooding 1 Properties in Total 1 business on Trawalla Avenue, Thomastown

52 APPENDIX C3 DAREBIN CREEK FLOOD EMERGENCY PLAN OVERVIEW OF FLOODING CONSEQUENCES Wollert, Epping, South Morang, Mill Park, Lalor, Thomastown and Bundoora are located between 16km to 28km north of Melbourne in a mixture of established residential and light industrial areas and areas of new residential estates. Darebin Creek is the prominent watercourse in the area, flowing north to south with the entire middle and upper catchment located within the municipality. High intensity, short duration rainfall events can cause flash flooding in and around Epping, Mill Park, Lalor and Thomastown, while prolonged rainfall may see Darebin Creek and its tributaries flood. The area sees a mixture of flat and gradually undulating terrain leading to both moderate and slow water movement. Flooding may last for a number of days on areas of flat terrain. WARNING TIMES Whilst there are hydrographic/telemetry stations (river gauges) within the municipality, Melbourne Water does not provide any flood warning service at this point, due to the generally short warning times available. River Gauge Station No. Owner Gauge Type Darebin Creek at Epping A Melbourne Water Darebin Creek at Bundoora A Melbourne Water River Level and Rain River Level and Rain Melway Reference 182D11 9F12 These Gauges may provide some warning of expected flooding. See the Melbourne Water website for more information on these gauges: and_river_level_data.asp. It is advised that residents monitor the Bureau of Meteorology s website and the VicSES website for any thunderstorm, flood or severe weather warnings present for their area

53 AREAS AFFECTED Figure C3 Areas affected along Darebin Creek in the City of Whittlesea

54 PROPERTIES AFFECTED Properties listed in the table below are at risk from flooding above floor level. As more intelligence becomes available, this list may grow. Residences / Businesses at risk from Flooding Above Floor Level 5% AEP No. of Properties in Street 2% AEP 1% AEP Street Suburb Along Melbourne Water Watercourse Flood Risk Type 1 1 Appletree Drive Mill Park South Morang Drain Flash 1 1 Blackburn Street Lalor Lalor Drain Flash Canberra Grove Lalor Lalor Drain Flash 2 2 Casey Drive Lalor Lalor Drain Flash Dalton Road Lalor Lalor Drain Flash Darebin Drive Lalor Lalor Drain Flash Deakin Avenue Lalor Lalor Drain Flash Dransfield Way Epping Hendersons Rd Drain Flash 1 East Court Lalor Lalor Drain Flash 1 2 Ethel Avenue Lalor Lalor Drain Flash 1 Gordon Street Lalor Lalor Drain Flash Griffin Court Lalor Lalor Drain Flash Kirwan Avenue Lalor Lalor Drain Flash 1 Lynee Street Lalor Lalor Drain Flash 2 3 Maxwell Street Lalor Lalor Drain Flash 1 Meadow Glen Drive Epping Hendersons Rd Drain Flash Rochester Drive Thomastown Thomastown East Drain Flash Roycroft Avenue Mill Park South Morang Drain Flash 2 2 Ruth Street Lalor Lalor Drain Flash The Mears Epping Hendersons Rd Drain Flash Trottin Place Epping Hendersons Rd Drain Flash Whitehall Place Lalor Lalor Drain Flash Totals Properties listed in the table below are at risk from property flooding along Darebin Creek. As more intelligence becomes available, this list may grow. Residences / Businesses at risk from Property Flooding in a 1% AEP event No. of Properties in Street Street Suburb Along Melbourne Water Watercourse Flood Risk Type 4 Lucy Court Bundoora Darebin Creek Riverine 4 McLeans Road Bundoora Darebin Creek Riverine 1 Mozart Court Bundoora Darebin Creek Riverine 2 Samuel Court Bundoora Darebin Creek Riverine Totals

55 ISOLATION No major isolation risks exist for areas around Wollert, Epping, South Morang, Mill Park, Lalor, Thomastown and Bundoora. Some localised short-duration isolation may occur due to flash flooding. ESSENTIAL INFRASTRUCTURE The South Morang Railway Line may be flooded between Pindari Avenue and Civic Drive in South Morang in a 1% AEP flash flooding event along the Hendersons Road Drain System. Apart from the roads outlined below, all other essential infrastructure and services areas around Darebin Creek in Wollert, Epping, South Morang, Mill Park, Lalor, Thomastown and Bundoora are expected to remain predominantly dry during an intense rainfall event. ROAD CLOSURES The following roads are subject to closure during flooding around Darebin Creek in Wollert, Epping, South Morang, Mill Park, Lalor, Thomastown and Bundoora. Check the VicRoads website for more details: VicRoads Roads affected in a 1% AEP event Dalton Road, Lalor between McKimmie s Parade Whittlesea City Council Roads affected in a 1% AEP event BUNDOORA LALOR Maxwell Street Figtree Court Laurie Collins Street Blackburn Street Prince Andrew Avenue Henricks Court McLeans Road Canberra Grove Ruth Street McKimmies Road EPPING Darebin Drive West Court THOMASTOWN Cantle Close East Court Whitehall Place Rochester Drive Dransfield Way Ethel Avenue MILL PARK Horseshoe Crescent Gordon Street Border Drive McDonalds Road Griffin Court Chestnut Road Meadow Glen Drive Kirwan Avenue Citrus Close Trotting Place Lynne Street Cuthbert Drive

56 FLOOD MITIGATION RETARDING BASINS Melbourne Water Retarding Basin On Drain/ Waterway Spillway Crest Level Full Supply Level 1% AEP Flood Level Findon Creek Findon Creek West Branch N/A m AHD m AHD Embankment Crest Height 4.5m (146.00m AHD) Storage Capacity ANCOLD Hazard Rating Houses In Flow Path Melway Reference 62ML Very Low Nil 182D5 The Palisades Hendersons Rd Drain 163.8m AHD 164.9m AHD 163.8m AHD N/A Unknown Unclassified N/A 183B3 The Houses in Flow Path figure relates to the number of houses that are at risk from damage should the retarding basin sunny day fail. No formal Pumping Stations or Levees exist around Darebin Creek in Wollert, Epping, South Morang, Mill Park, Lalor, Thomastown and Bundoora. 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. FLOOD IMPACTS and REQUIRED ACTIONS The table below is a breakdown of the number of properties impacted in a 1% AEP (100yr ARI) event. Refer to the following intelligence card/s for Epping and Bundoora for more details. Land Use Impacted in a 1% AEP Event Amount Residential 333 Business 7 Industrial 0 Public Land 2 Rural 0 Total

57 FLOOD INTELLIGENCE CARD EPPING GAUGE, DAREBIN CREEK Version 2 February 2014 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. This Flood Intelligence Card publication is presented by the Victoria State Emergency Service for the purpose of disseminating emergency management information. The contents of the information have not been independently verified by the Victoria State Emergency Service. No liability is accepted for any damage, loss or injury caused by errors or omissions in this information or for any action taken by any person in reliance upon it. LOCATION Rufus Street, Epping MINOR: NOT ESTABLISHED MELWAY REFERENCE: 182 C11 MODERATE: NOT ESTABLISHED STREAM: Darebin Creek MAJOR NOT ESTABLISHED GAUGE NUMBER: LEVEE HEIGHT: N/A GAUGE ZERO: m AHD TELEMETRIC/MANUAL TELEMETRIC GAUGE TYPE River Level and Rain HIGHEST RECORDED FLOOD: 3.49m (March 1970) River Height (m) and/or River Flow (m 3 /s) Flood Class or Annual Exceedance Probability Consequence / Impact Action 3.49m March 1970 Flood Level Nil Information Available 3.98m 1% AEP (100 year ARI flow) Water Over Road Findons Creek West Branch Boundary Road, Wollert Lehmanns Road, Wollert Harvest Home Road, Wollert Findon Road, Epping Darebin Creek McKimmies Road, Mill Park Laurie Collins Street, Bundoora

58 FLOOD INTELLIGENCE CARD BUNDOORA GAUGE, DAREBIN CREEK Version 2 February 2014 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. This Flood Intelligence Card publication is presented by the Victoria State Emergency Service for the purpose of disseminating emergency management information. The contents of the information have not been independently verified by the Victoria State Emergency Service. No liability is accepted for any damage, loss or injury caused by errors or omissions in this information or for any action taken by any person in reliance upon it. LOCATION Settlement Road, Bundoora MINOR: NOT ESTABLISHED MELWAY REFERENCE: 9 G12 MODERATE: NOT ESTABLISHED STREAM: Darebin Creek MAJOR NOT ESTABLISHED GAUGE NUMBER: A LEVEE HEIGHT: N/A GAUGE ZERO: 80.21m AHD TELEMETRIC/MANUAL TELEMETRIC GAUGE TYPE River Level and Rain HIGHEST RECORDED FLOOD: 4.82m (15 th May 1974) River Height (m) and/or River Flow (m 3 /s) Flood Class or Annual Exceedance Probability Consequence / Impact Action 3.7m Bank Full Level Breakout level on the lower bank at Gauging location 4.20m 1% AEP (100 year ARI flow) Property Flooding 11 Properties in Total 1 property on Mozart Court, Bundoora 2 properties on Samuel Court, Bundoora 4 properties on Lucy Court, Bundoora 4 properties on McLeans Road, Bundoora Community Infrastructure Affected Northside Christian Centre and College, McLeans Road experiencing yard flooding from open channel running through middle of School Water Over Road McLeans Road, Bundoora

59 River Height (m) and/or River Flow (m 3 /s) Flood Class or Annual Exceedance Probability Consequence / Impact Action 4.69m Community Infrastructure Affected Water starts flowing on footbridge on northern side of Settlement Road 4.82m 15 th May 1974 Flood Level Nil Information Available

60 FLOOD INTELLIGENCE CARD HENDERSONS RD DRAIN, SOUTH MORANG DRAIN and LALOR DRAIN (UNGAUGED) Version 2 February 2014 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. This Flood Intelligence Card publication is presented by the Victoria State Emergency Service for the purpose of disseminating emergency management information. The contents of the information have not been independently verified by the Victoria State Emergency Service. No liability is accepted for any damage, loss or injury caused by errors or omissions in this information or for any action taken by any person in reliance upon it. CLOSEST RAIN GAUGE Darebin Creek at Epping GAUGE NUMBER A LOCATION Rufus Street, Epping GAUGE TYPE RAIN MELWAY REF: 182D11 TELEMETRIC/MANUAL TELEMETRIC Design Rainfall Depths (mm) Indication of Possible Flooding Annual Exceedance Probability Consequence / Impact Action 16mm in 10 mins; 26mm in 30 mins; 34mm in 1 hour; 44mm in 2 hours; 62mm in 6 hours; or 78mm in 12 hours 5% AEP (20 year ARI) Residences/Businesses Inundated (above floor) 29 Properties in Total Hendersons Road Drain 1 property on The Mears, Epping 1 property on Dransfield Way, Epping 1 property on Trottin Place, Epping South Morang Drain Note: rainfall depths are a very rough method of estimating flood events and have been used due to the ungagged nature of the catchment. This should be used as a guide only. 2 properties on Roycroft Avenue, Mill Park Lalor Drain 10 properties on Dalton Road, Lalor near Lalor Secondary College 1 property on Deakin Avenue, Lalor 6 properties on Kirwan Avenue, Lalor 1 property on Darebin Drive, Lalor 1 property on Whitehall Place, Lalor 1 property on Griffin Court, Lalor 2 properties on Canberra Grove, Lalor Thomastown East Drain

61 Design Rainfall Depths (mm) Indication of Possible Flooding Annual Exceedance Probability Consequence / Impact 2 properties on Rochester Drive, Thomastown Community Infrastructure Affected South Morang Drain St Francis of Assisi Catholic Primary School on Childs Road, Mill Park at risk of flooding over-floor from South Morang Drain Lalor Drain Lalor Primary School on Maxwell Street, Lalor flooded around sporting field Lalor Secondary College on Dalton Road, Lalor flooded through centre of School Water Over Road Hendersons Road Drain Dransfield Way, Epping Cantle Close, Epping South Morang Drain Cuthbert Drive, Mill Park Lalor Drain Blackburn Street, Lalor Ruth Street, Lalor Dalton Road, Lalor between McKimmies Street and Menzies Parade Kirwan Avenue, Lalor Darebin Drive, Lalor at Casey Drive Whitehall Place, Lalor Canberra Grove, Lalor Action 19mm in 10 mins; 32mm in 30 mins; 42mm in 1 hour; 53mm in 2 hours; 75mm in 6 hours; or 94mm in 12 hours Note: rainfall depths are a very rough method of estimating flood events and have been used due to the ungagged nature of 2% AEP (50 year ARI) Residences/Businesses Inundated (above floor) 45 Properties in Total Hendersons Road Drain 1 property on The Mears, Epping 1 property on Dransfield Way, Epping 2 properties on Trottin Place, Epping South Morang Drain 4 properties on Roycroft Avenue, Mill Park 1 property on Appletree Drive, Mill Park Lalor Drain 1 property on Ethel Avenue, Lalor 2 properties on Maxwell Street, Lalor 1 property on Blackburn Street, Lalor

62 Design Rainfall Depths (mm) Indication of Possible Flooding the catchment. This should be used as a guide only. Annual Exceedance Probability 2 properties on Ruth Street, Lalor Consequence / Impact 11 properties on Dalton Road, Lalor near Lalor Secondary College 1 property on Deakin Avenue, Lalor 8 properties on Kirwan Avenue, Lalor 2 properties on Darebin Drive, Lalor 2 properties on Casey Drive, Lalor 1 property on Whitehall Place, Lalor 1 property on Griffin Court, Lalor 4 properties on Canberra Grove, Lalor Thomastown East Drain 4 properties on Rochester Drive, Thomastown Community Infrastructure Affected South Morang Drain St Francis of Assisi Catholic Primary School on Childs Road, Mill Park at risk of flooding over-floor from South Morang Drain Lalor Drain Lalor Primary School on Maxwell Street, Lalor flooded around sporting field Lalor Secondary College on Dalton Road, Lalor flooded through centre of School Water Over Road Hendersons Road Drain Dransfield Way, Epping Horseshoe Crescent, Epping Meadow Glen Drive, Epping Cantle Close, Epping South Morang Drain Cuthbert Drive, Mill Park Henricks Court, Mill Park Citrus Close, Mill Park Figtree Court, Mill Park Lalor Drain Ethel Avenue, Lalor Maxwell Street, Lalor Blackburn Street, Lalor Ruth Street, Lalor Dalton Road, Lalor between McKimmies Street and Menzies Parade Action

63 Design Rainfall Depths (mm) Indication of Possible Flooding Annual Exceedance Probability Consequence / Impact Action Kirwan Avenue, Lalor Darebin Drive, Lalor at Casey Drive Whitehall Place, Lalor Canberra Grove, Lalor Thomastown East Drain Rochester Drive, Thomastown 22mm in 10 mins; 37mm in 30 mins; 48mm in 1 hour; 60mm in 2 hours; 85mm in 6 hours; or 106mm in 12 hours Note: rainfall depths are a very rough method of estimating flood events and have been used due to the ungagged nature of the catchment. This should be used as a guide only. 1% AEP (100 year ARI) Residences/Businesses Inundated (above floor) 61 Properties in Total Hendersons Road Drain 1 property on The Mears, Epping 2 properties on Dransfield Way, Epping 2 properties on Trottin Place, Epping 1 property on Meadow Glen Drive, Epping South Morang Drain 4 properties on Roycroft Avenue, Mill Park 1 property on Appletree Drive, Mill Park Lalor Drain 1 property on Gordon Street, Lalor 2 properties on Ethel Avenue, Lalor 1 property on East Court, Lalor 3 properties on Maxwell Street, Lalor 1 property on Blackburn Street, Lalor 2 properties on Ruth Street, Lalor 13 properties on Dalton Road, Lalor near Lalor Secondary College 1 property on Deakin Avenue, Lalor 8 properties on Kirwan Avenue, Lalor 1 property on Lynne Street, Lalor 2 properties on Darebin Drive, Lalor 2 properties on Casey Drive, Lalor 2 properties on Whitehall Place, Lalor 1 property on Griffin Court, Lalor 6 properties on Canberra Grove, Lalor Thomastown East Drain 4 properties on Rochester Drive, Thomastown

64 Design Rainfall Depths (mm) Indication of Possible Flooding Annual Exceedance Probability Community Infrastructure Affected South Morang Drain Consequence / Impact St Francis of Assisi Catholic Primary School on Childs Road, Mill Park at risk of flooding over-floor from South Morang Drain Lalor Drain Lalor Primary School on Maxwell Street, Lalor flooded around sporting field Lalor Secondary College on Dalton Road, Lalor flooded through centre of School Essential Infrastructure Affected The South Morang Railway Line may be flooded between Pindari Avenue and Civic Drive in South Morang in a 1% AEP flash flooding event along the Hendersons Road Drain System Water Over Road (Over 300mm Depth) Hendersons Road Drain Dransfield Way, Epping Trotting Place, Epping Horseshoe Crescent, Epping Meadow Glen Drive, Epping Cantle Close, Epping McDonalds Road, Epping Border Drive, Mill Park South Morang Drain Cuthbert Drive, Mill Park Henricks Court, Mill Park Citrus Close, Mill Park Chestnut Road, Mill Park Figtree Court, Mill Park Lalor Drain Gordon Street, Lalor Prince Andrew Avenue, Lalor West Court, Lalor Ethel Avenue, Lalor East Court, Lalor Maxwell Street, Lalor Blackburn Street, Lalor Ruth Street, Lalor Action

65 Design Rainfall Depths (mm) Indication of Possible Flooding Annual Exceedance Probability Consequence / Impact Action Dalton Road, Lalor between McKimmies Street and Menzies Parade Kirwan Avenue, Lalor Lynne Street, Lalor Darebin Drive, Lalor at Casey Drive Whitehall Place, Lalor Griffin Court, Lalor Canberra Grove, Lalor Thomastown East Drain Rochester Drive, Thomastown

66 APPENDIX D - FLOOD EVACUATION ARRANGEMENTS Phase 1 - Decision to Evacuate The Incident Controller may make the decision to evacuate an at-risk community under the following circumstances: Properties are likely to become inundated; Properties are likely to become isolated and occupants are not suitable for isolated conditions; Public health is at threat as a consequence of flooding and evacuation is considered the most effective risk treatment. This is the role of the Health Commander of the incident to assess and manage. Refer to the State Health Emergency Response Plan (SHERP) for details); Essential services have been damaged and are not available to a community and evacuation is considered the most effective risk treatment. The following should be considered when planning for evacuation: Anticipated flood consequences and their timing and reliability of predictions; Size and location of the community to be evacuated; Likely duration of evacuation; Forecast weather; Flood Models; Predicted timing of flood consequences; Time required to conduct the evacuation; Time available to conduct the evacuation; Evacuation priorities and evacuation planning arrangements; Access and egress routes available and their potential flood liability; Current and likely future status of essential infrastructure; Resources required to conduct the evacuation; Resources available to conduct the evacuation; Shelter including Emergency Relief Centres, Assembly Areas etc.; Vulnerable people and facilities; Transportation; Registration People of CALD background and transient populations; Safety of emergency service personnel; Different stages of an evacuation process. The decision to evacuate is to be made in consultation with the MERO, MERC, MRM, DHS, Health Commander and other key agencies and expert advice (CMA s and Flood Intelligence specialists)

67 The table below details triggers for evacuation, if these heights are predicted or are likely to occur evacuation should be considered Sector Gauge Trigger Reserved for future consideration as required The table below details time required to evacuate established areas. Sector Reserved for future consideration as required Likely time required for evacuation (including resource assumptions) Phase 2 Warning Warnings may include a warning to prepare to evacuate and a warning to evacuate immediately. Once the decision to evacuate has been made, the at-risk community will be warned to evacuate. Evacuation warnings can be disseminated via methods listed in Part 3 of this plan. Evacuation warning messages will be developed and issued by VICSES. Phase 3 Withdrawal Withdrawal will be controlled by VicPol. VICSES will provide advice regarding the most appropriate evacuation routes and locations for at-risk communities to evacuate to, etc. VICSES, CFA and Local Government will provide resources where available to support VicPol/VICROADS with route control and may assist VicPol in arranging evacuation transportation. VicPol will control security of evacuated areas. Evacuees will be encouraged to move using their own transport where possible. Those without vehicles or other means of transport will be advised of arrangements that have been made for them. Possible Evacuation Routes will be advised. VicPol will identify Vulnerable Persons via the Vulnerable Persons Register (VPR). Contact the MERO for information on other special needs residents (GIS layer). Phase 4 Shelter Relief Centres and/or Assembly Areas which cater for people s basic needs during floods may be established to meet the immediate needs of people affected by flooding. The flood relief centres and/or Assembly Areas to be activated will be advised. VicPol in consultation with VICSES will liaise with Local Government and DHS (where regional coordination is required) via the relevant control centre to plan for the opening and operation of relief centres. This can best be achieved through the Emergency Management Team (EMT). Animal Shelter Animal shelter compounds will be established for domestic pets and companion animals of evacuees. The location of these facilities will be determined by the MERO, refer to the MEMP for contact details

68 Phase 5 Return Return will be consistent with the VIC SES Strategic Plan for the Return of Community. The Incident Controller in consultation with VicPol will determine when it is safe for evacuees to return to their properties and will arrange for the notification of the community. VicPol will manage the return of evacuated people with the assistance of other agencies as required. Considerations for deciding whether to return include: Current flood situation; Status of flood mitigation systems; Size and location of the community; Access and egress routes available and their status; Resources required to coordinate the return; Special needs groups; Forecast weather; Transportation particularly for people without access to transport Disruption to Services Disruption to a range of services can occur in the event of a flood. This may include road closures affecting school bus routes, water treatment plant affecting potable water supplies etc. No disruption to services has been identified at this stage. Service Impact Trigger Point for action Reserved for future consideration as required Strategy/Temporary Measures Essential Community Infrastructure and Property Protection Essential community infrastructure and properties (e.g. residences, businesses, roads, power supply etc.) that require protection are: No essential community infrastructure and properties have been identified at this stage. Facility Impact Trigger Point for action Strategy/Temporary Measures Reserved for future consideration as required City of Whittlesea may establish sandbag collection points as required. Rescue Refer to Section 3.10 for rescue arrangements

69 APPENDIX E - FLOOD WARNING SYSTEMS Flood Warning Flood Warning products and Flood Class Levels can be found on the BoM website Flood Warning Products include Severe Thunderstorm Warnings, Severe Weather Warnings, Flood Watches and Flood Warnings. Flood Bulletins VICSES distributes flood emergency information to the media through Flood Bulletins. Flood Bulletins provide BoM Flood Warning information as well as information regarding possible flood consequences and safety advice, not contained in BoM Flood Warning products. VICSES uses the title Flood Bulletin to ensure emphasis is placed upon BoM Flood Warning product titles. The relevant VICSES Region Headquarters or the established ICC will normally be responsible for drafting, authorizing and issuing issue Flood Bulletins, using the One Source, One Message system. Flood Bulletins should refer to the warning title within the Bulletin header, for example Flood Bulletin for Major Flood Warning on Yarra River. Flood Bulletins should follow the following structure What is the current flood situation; What is the predicted flood situation; What are the likely flood consequences; What should the community do in response to flood warnings; Where to seek further information; Who to call if emergency assistance is required. It is important that the description of the predicted flood situation is consistent with and reflects the relevant BoM Flood Warning. Flood Bulletins should be focused on specific gauge (or in the absence of gauges, catchment) reference areas, that is the area in which flood consequences specifically relate to the relevant flood gauge. Flood Bulletins should be prepared and issued after receipt of each Flood Watch and Flood Warning from the BoM, or after Severe Weather or Thunderstorm Warnings indicating potential for severe flash flooding. To ensure Flood Bulletins are released in a timely manner, standardised Flood Bulletins may be drafted based on different scenarios, prior to events occurring. The standardised Flood Bulletins can then be adapted to the specifics of the event occurring or predicted to occur. Local Flood Warning System Arrangements At this point there are no local flood warning system arrangements within the City of Whittlesea

70 APPENDIX F MAPS 1. Overview Maps considered useful to flood response are included in this Appendix. They include: A map outlining a series of flooding hot spot maps within the City of Whittlesea. A map showing the Municipal boundary together with the open waterways and underground stormwater drainage pipe network within the City of Whittlesea and the 1% AEP (100-year ARI) flood extents (sourced from Melbourne Water GIS). A set of 18 maps showing flooding hot spots within the City of Whittlesea together with the 1% AEP (100-year ARI) flood extents (sourced from the Melbourne Water GIS). Note that: Maps showing the Special Building Overlay and Land Subject to Inundation Overlay are included in the Whittlesea Planning Scheme can be used as a guide to areas that may flood during an event. The maps can be found in hard copy form at the Council s main office or online at the Department of Planning and Community Development website Maps showing 1 in 100-year ARI (1% AEP) flood extents and floodways (together with volume, height and water quality data) are shown at the Victorian Water Resources website

71 2. Ciy of Whittlesea Municipal Maps (sourced Melbourne Water GIS)

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73 3. Flooding Hot Spot Maps (sourced Melbourne Water GIS)

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91 APPENDIX G CATCHMENT SCHEMATICS Whittlesea Flood Emergency Plan A Sub-Plan of the MEMPlan April 2014

92 Whittlesea Flood Emergency Plan A Sub-Plan of the MEMPlan April 2014

93 Whittlesea Flood Emergency Plan A Sub-Plan of the MEMPlan April 2014