Bega Valley Shire

BEGA VALLEY SHIRE FLOOD EMERGENCY SUB PLAN

A Sub-Plan of the Bega Valley Shire Council Local Emergency Management Plan (EMPLAN)

Volume 1 of the Bega Valley Shire Local Flood Plan

Bega Valley Shire Local Flood Plan

AUTHORISATION

The Bega Valley Shire Flood Emergency Sub Plan is a sub plan of the Bega Valley Shire Council Local Emergency Management Plan (EMPLAN). It has been prepared in accordance with the provisions of the State Emergency Service Act 1989 (NSW) and is authorised by the Local Emergency Management Committee in accordance with the provisions of the State Emergency and Rescue Management Act 1989 (NSW).

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CONTENTS

AUTHORISATION ...... i CONTENTS ...... ii LIST OF TABLES ...... iii DISTRIBUTION LIST ...... iv VERSION HISTORY ...... v AMENDMENT LIST ...... v LIST OF ABBREVIATIONS ...... vi GLOSSARY ...... viii PART 1 - INTRODUCTION ...... 1 1.1 Purpose ...... 1 1.2 Authority ...... 1 1.3 Area Covered by the Plan ...... 1 1.4 Description of Flooding and its Effects ...... 2 1.5 Responsibilities ...... 2 PART 2 - PREPAREDNESS ...... 15 2.1 Maintenance of this Plan ...... 15 2.2 Floodplain and Coastal Risk Management ...... 15 2.3 Development of Flood Intelligence...... 15 2.4 Development of Warning Systems ...... 15 2.5 Public Education ...... 16 2.6 Training ...... 16 2.7 Resources ...... 17 PART 3 - RESPONSE ...... 18 3.1 Control Arrangements ...... 18 3.2 Operational Management ...... 18 3.3 Start of Response Operations ...... 18 3.4 Response Strategies ...... 19 3.5 Operations Centres ...... 20 3.6 Liaison ...... 21 3.7 End of Response Operations...... 21 3.8 Collating Situational Information ...... 22 3.9 Provision of Flood Information and Warnings ...... 23 3.10 Aircraft Management ...... 26 3.11 Assistance for Animals ...... 26 3.12 Communication Systems ...... 27 3.13 Preliminary Deployments ...... 27 3.14 Road and Traffic Control...... 27 3.15 Stranded Travellers ...... 28 3.16 Managing Property Protection Operations ...... 28 3.17 Managing Flood Rescue Operations ...... 28 3.18 Managing Evacuation Operations ...... 29

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3.19 Managing Resupply Operations ...... 35 PART 4 - RECOVERY...... 37 4.1 Recovery Coordination at the Local level ...... 37 4.2 Recovery Coordination at the Region and State level ...... 38 4.3 Arrangements for Debriefs / After Action Reviews ...... 38 ATTACHMENT 1 - Resupply Flowchart ...... 39 ATTACHMENT 2 - Dam Failure Alert Notification Arrangements Flowchart ...... 40 ATTACHMENT 3 - Bega Valley Shire Council LGA MAP ...... 41

LIST OF TABLES

Table 1: Dam Failure Alert Levels ...... 25

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DISTRIBUTION LIST

Recipient Number of copies NSW SES Bega Valley Local Controller 1 NSW SES Bega, Bermagui and Eden Unit Controllers 3 NSW SES Bega, Bermagui and Eden Units 3 NSW SES Illawarra South Coast Region Headquarters 1 NSW SES State Headquarters 1 Bega Valley Shire Council, Local Emergency Operations Controller 1 NSW Police Force, Far South Coast Local Area Command 1 Bega Valley Shire Council, Local Emergency Management Committee 4 Members Bega Valley Shire Council, Local Emergency Management Officer 1 Bega Valley Shire Council, Local Emergency Operations Centre 1 Bega Valley Shire Council, Mayor 1 Bega Valley Shire Council, General Manager 1 Bega Valley Shire Council, Technical Services Department 1 Fire and Rescue NSW, Bega, Eden, Merimbula 3 NSW Rural Fire Service, Far South Coast 1 Ambulance Service of NSW, Bega, Bermagui, Eden and Merimbula 4 Volunteer Rescue Association, Bega Rescue Squad 1 Marine Rescue NSW 1 SLSNSW 1 Office of Environment and Heritage 1 Evacuation Centres 1 each Hospitals 1 each Schools 1 each Caravan Parks 1 each Council Libraries 1 each

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VERSION HISTORY

The following table lists all previously endorsed versions of this plan.

Description Date

Bega Valley Shire Local Flood Plan May 2007

AMENDMENT LIST

Suggestions for amendments to this plan should be forwarded to:

Illawarra South Coast Region NSW State Emergency Service PO Box 1460, Wollongong, NSW, 2500 Amendments promulgated in the amendments list below have been entered in this plan.

Amendment Description Updated by Date Number

Document Issue: V28112012

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LIST OF ABBREVIATIONS

The following abbreviations have been used in this plan:

AEP Annual Exceedance Probability

AHD Australian Height Datum

AIIMS Australasian Inter-service Incident Management System

ARI Average Recurrence Interval (Years)

ALERT Automated Local Evaluation in Real Time

AWRC Australian Water Resources Council

BUREAU Australian Government Bureau of Meteorology

CBR Chemical, Biological or Radiation

DCF Dam Crest Flood

DSC Dams Safety Committee

DSEP Dam Safety Emergency Plan

DVR Disaster Victim Registration

EMPLAN Emergency Management Plan

FRNSW Fire and Rescue NSW

GIS Geographic Information System

GRN Government Radio Network

IAP Incident Action Plan

IFF Imminent Failure Flood

LEMC Local Emergency Management Committee

LEOCON Local Emergency Operations Controller

LGA Local Government Area

MHL Manly Hydraulics Laboratory

NOW NSW Office of Water

NSW SES NSW State Emergency Service

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OEH Office of Environment and Heritage (previously DECCW)

PMF Probable Maximum Flood

PMR Private Mobile Radio

PMP Probable Maximum Precipitation

RFS Rural Fire Service

RMS Roads and Maritime Services

SEOCON State Emergency Operations Controller

SERCON State Emergency Recovery Controller

SEWS Standard Emergency Warning Signal

VRA Volunteer Rescue Association

WICEN Wireless Institute Civil Emergency Network

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GLOSSARY

Annual Exceedance Probability (AEP). The chance of a flood of a given or larger size occurring in any one year, usually expressed as a percentage. For example, if a peak flood level (height) has an AEP of 5%, there is a 5% chance (that is, a one-in-20 chance) of such a level or higher occurring in any one year (see also Average Recurrence Interval).

Assistance Animal. A guide dog, a hearing assistance dog or any other animal trained to assist a person to alleviate the effect of a disability (Refer to Section 9 of the Disability Discrimination Act 1992).

Australian Height Datum (AHD). A common national surface level datum approximately corresponding to mean sea level.

Average Recurrence Interval (ARI). The long-term average number of years between the occurrence of a flood as big as, or larger than, the selected event. For example, floods reaching a height as great as, or greater than, the 20 year ARI flood event will occur on average once every 20 years.

Catchment (river basin). The land area draining through the main stream, as well as tributary streams, to a particular site. It always relates to an area above a specific location.

Coastal Erosion. The loss of land along the shoreline predominantly by the offshore movement of sand during storms.

Dambreak Study. A Dambreak Study is undertaken to determine the likely downstream inundation areas in case of a dam failure. Modelling is undertaken for a range of dam breach possibilities and design floods. The dambreak study includes information such as the extent of flooding, flood travel times and flood water velocities. The study can assist dam owners, regulators, and emergency agencies in the preparations of evacuation plans, dam break and other flood warning systems, and hazard classification of affected areas.

Dam Failure. The uncontrolled release of a water storage. The failure may consist of the collapse of the dam or some part of it, or excessive seepage or discharges. The most likely causes of dam failure are:

 Flood Induced Dam Failure: Dam failure caused by flood, either due to overtopping erosion or by subsequent structural failure.  Sunny Day Dam Failure: Dam Failure as a result of factors other than flood i.e. other than flood flow into the reservoir. Causes of "Sunny Day" dam failure can include internal erosion, landslide, piping, earthquake or sabotage.

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Dam Safety Emergency Plan (DSEP). A DSEP outlines the required actions of owners and their personnel at dams in response to a range of possible emergency situations. The NSW Dam Safety Committee requires a quality controlled DSEP, with associated dambreak warning procedures to be prepared for prescribed dams where persons may be at risk downstream, if the dam failed.

Design flood (or flood standard). A flood of specified magnitude that is adopted for planning purposes. Selections should be based on an understanding of flood behaviour and the associated flood risk, and take account of social, economic and environmental considerations. There may be several design floods for an individual area.

Emergency Alert. A national telephony based alerting system available for use by emergency service agencies to send SMS and voice messages to landlines and/or mobile telephones in times of emergency.

EMPLAN (Emergency Management Plan). The object of a EMPLAN is to ensure the coordinated response by all agencies having responsibilities and functions in emergencies.

Essential services. Those services, often provided by local government authorities, that are considered essential to the life of organised communities. Such services include power, lighting, water, gas, sewerage and sanitation clearance.

Evacuation. The temporary movement of people from a dangerous or potentially dangerous place to a safe location, and their eventual return. It is a safety strategy which uses distance to separate people from the danger created by the hazard.

Evacuation Order. Notification to the community, authorised by the NSW SES, when the intent of an Incident Controller is to instruct a community to immediately evacuate in response to an imminent threat.

Evacuation Warning. Notification to the community, authorised by the NSW SES, when the intent of an Incident Controller is to warn a community of the need to prepare for a possible evacuation.

Flash flooding. Flooding which is sudden and often unexpected because it is caused by sudden local or nearby heavy rainfall. It is sometimes defined as flooding which occurs within six hours of the rain that causes it.

Flood. Relatively high water level which overtops the natural or artificial banks in any part of a stream, river, estuary, lake or dam, and/or local overland flooding associated with drainage before entering a watercourse, and/or coastal inundation resulting from super-elevated sea levels and/or waves overtopping coastline defences, including Tsunami.

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Flood classifications. Locally defined flood levels used in flood warnings to give an indication of the severity of flooding (minor, moderate or major) expected. These levels are used by the State Emergency Service and the Australian Government Bureau of Meteorology in flood bulletins and flood warnings.

Flood intelligence. The product of collecting, collating, analysing and interpreting flood- related data to produce meaningful information (intelligence) to allow for the timely preparation, planning and warning for and response to a flood.

Flood fringe. The remaining area of flood prone land after floodway and flood storage have been defined.

Flood liable land (also referred to as flood prone land). Land susceptible to flooding by the Probable Maximum Flood. (PMF) event. This term also describes the maximum extent of a floodplain which is an area of a river valley, adjacent to the river channel, which is subject to inundation in floods up to this event.

Flood of record. Maximum observed historical flood.

Floodplain Management Plan. A plan developed in accordance with the principles and guidelines in the New South Wales Floodplain Development Manual. Such a plan usually includes both written and diagrammatic information describing how particular areas of flood prone land can be used and managed to achieve defined objectives.

Flood Plan. A response strategy plan that deals specifically with flooding and is a sub-plan of a Emergency Management Plan. Flood plans describe agreed roles, responsibilities, functions, strategies and management arrangements for the conduct of flood operations and for preparing for them. A flood plan contains information and arrangements for all floods whereas an IAP is for a specific flood/event.

Flood Rescue. The safe removal of persons or domestic animals from actual or threatened danger of physical harm by floodwaters.

Flood storage areas. Those parts of the floodplain that are important for the temporary storage of floodwaters during the passage of a flood. The extent and behaviour of flood storage areas may change with flood severity, and loss of flood storage can increase the severity of flood impacts by reducing natural flood attenuation.

Floodway. An area where a significant volume of water flows during floods. Such areas are often aligned with obvious naturally-defined channels and are areas that, if partially blocked, would cause a significant redistribution of flood flow which may in turn adversely affect other areas. They are often, but not necessarily, the areas of deeper flow or the areas where higher velocities occur.

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Flood Watch. A Flood Watch is a notification of the potential for a flood to occur as a result of a developing weather situation and consists of short generalised statements about the developing weather including forecast rainfall totals, description of catchment conditions and indicates streams at risk. The Bureau will also attempt to estimate the magnitude of likely flooding in terms of the adopted flood classifications. Flood Watches are normally issued 24 to 36 hours in advance of likely flooding. Flood watches are issued on a catchment wide basis.

Flood Warning. A Flood Warning is a gauge specific forecast of actual or imminent flooding. Flood Warnings specify the river valley, the locations expected to be flooded, the likely severity of flooding and when it will occur.

Functional Area. A category of services involved in the preparations for an emergency, including the following:

 Agriculture and Animal Services;  Energy and Utility Services;  Engineering Services;  Environmental Services;  Health Services;  Public Information Services;  Telecommunication Services;  Transport Services; and  Welfare Services. Geographic Information System (GIS). A geographic information system (GIS) integrates hardware, software, and data for capturing, managing, analysing, and displaying all forms of geographically referenced information.

Incident Action Plan (IAP). An action plan for managing a specific event. Information from the Local Flood Plan is used to develop the flood IAP.

Indirect Effect. Indirect effects are generally a consequence of infrastructure damage or interruption of services and can affect communities distant from the actual flood footprint i.e. floodplain. Indirect effects can also refer to indirect losses due to disruption of economic activity, both in areas which are inundated or isolated. Indirect effects are one of the three primary sources of risk in the context of flooding (the other two are inundation and isolation).

Inundation. See definition for Flood.

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Isolation. Properties and/or communities where flooding cuts access to essential services or means of supply. Isolation is one of the three primary sources of risk in the context of flooding (the other two are inundation and indirect effects).

Local overland flooding. Inundation by local runoff rather than overbank discharge from a stream, river, estuary, lake or dam.

Major flooding. Flooding which causes inundation of extensive rural areas, with properties, villages and towns isolated and/or appreciable urban areas flooded.

Minor flooding. Flooding which causes inconvenience such as closing of minor roads and the submergence of low-level bridges. The lower limit of this class of flooding, on the reference gauge, is the initial flood level at which landholders and/or townspeople begin to be affected in a significant manner that necessitates the issuing of a public flood warning by the Australian Government Bureau of Meteorology.

Moderate flooding. Flooding which inundates low-lying areas, requiring removal of stock and/or evacuation of some houses. Main traffic routes may be covered.

Peak height. The highest level reached, at a nominated gauging station, during a particular flood event.

Prescribed Dam. "Prescribed" dams are those listed in Schedule 1 of the Dams Safety Act 1978. The NSW Dam Safety Committee will prescribe those dams with the potential for a failure which could have a significant adverse effect on community interests.

Probable Maximum Flood (PMF). The largest flood that could conceivably be expected to occur at a particular location, usually estimated from probable maximum precipitation. The PMF defines the maximum extent of flood prone land, that is, the floodplain. It is difficult to define a meaningful Annual Exceedance Probability for the PMF, but it is commonly assumed to be of the order of 104 to 107 (once in 10,000 to 10,000,000 years).

Runoff. The amount of rainfall which ends up as stream flow, also known as ‘rainfall excess’ since it is the amount remaining after accounting for other processes such as evaporation and infiltration.

Stage height. A level reached, at a nominated gauging station, during the development of a particular flood event.

Stream gauging station. A place on a river or stream at which the stage height is routinely measured, either daily or continuously, and where the discharge is measured from time to time so as to develop a relationship between stage and discharge or rating curve.

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PART 1 - INTRODUCTION

1.1 PURPOSE

1.1.1 This plan covers preparedness measures, the conduct of response operations and the coordination of immediate recovery measures from flooding within the Bega Valley Shire Council area. It covers operations for all levels of flooding within the council area. 1.1.2 The plan also covers arrangements for the management of coastal erosion in the council area.

1.2 AUTHORITY

1.2.1 This plan is issued under the authority of the State Emergency and Rescue Management Act 1989 (NSW) and the State Emergency Service Act 1989 (NSW). It has been approved by the NSW SES Bega Valley Shire Local Controller and the NSW SES Illawarra South Coast Region Controller as a NSW SES plan and endorsed by the Bega Valley Shire Council Local Emergency Management Committee as a sub plan of the Local EMPLAN.

1.3 AREA COVERED BY THE PLAN

1.3.1 The area covered by the plan is the Bega Valley Shire Council area which includes: the towns of Bega, Eden and Merimbula; the villages of Cobargo, Bermagui, Bemboka, Kalaru, Tathra, Candelo, Pambula, Tura, Quaama and Towamba and intervening rural areas. 1.3.2 The council area and its principal rivers and creeks are shown in Attachment 3. 1.3.3 The council area includes: a. The Bega River system (including the major tributaries, the Brogo and Bemboka rivers and the Tantawangalo, Candelo and Wolumla creeks), and the Bermagui, Wallagaraugh, Murrah, Pambula, Towamba, Wonboyn, Merrica, Nadgee, Wadbilliga and Yowrie rivers, Wapengo Creek and their tributaries. b. Several coastal lakes and embayments including Wallaga, Barragoot, Cuttagee, Murrah, Wapengo, Wallagoot, Back, Merimbula and Pambula lakes. 1.3.4 The council area is in the NSW SES Illawarra South Coast Region and for emergency management purposes is part of the Illawarra South Coast Emergency Management Region.

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1.4 DESCRIPTION OF FLOODING AND ITS EFFECTS

1.4.1 The NSW SES maintains information on the nature of flooding and effects of flooding on the community in the Bega Valley Shire Council area.

1.5 RESPONSIBILITIES

1.5.1 The general responsibilities of emergency services organisations and support agencies (functional areas) are listed in the Local and State Emergency Management Plans (EMPLAN). Some specific responsibilities are expanded upon in the following paragraphs. The extent of their implementation will depend on the severity of the flooding. Specific responsibilities of agencies and organisations as they relate to tsunami are detailed in the State Tsunami Emergency Sub Plan. 1.5.2 NSW SES Bega Valley Local Controller. The NSW SES Bega Valley Local Controller is responsible for dealing with floods as detailed in the State Flood Plan, and will: Preparedness a. Maintain a Local Headquarters at Bega in accordance with the NSW SES Controllers’ Guide and the NSW SES Operations Manual. b. Ensure that NSW SES members are trained to undertake operations in accordance with current policy as laid down in the NSW SES Controllers’ Guide and the NSW SES Operations Manual. c. Coordinate the development and operation of a flood warning service for the community. d. Participate in floodplain and coastal risk management initiatives organised by the Bega Valley Shire Council. e. Coordinate a public education program. f. Identify and monitor people and/or communities at risk of flooding and coastal erosion. g. Ensure that the currency of this plan is maintained. Response h. Appoint an appropriate Local Incident Controller to undertake response roles. The Incident Controller will: i. Control flood and storm response operations. This includes:  Directing the activities of the NSW SES units operating within the council area.  Coordinating the activities of supporting agencies and organisations and ensuring that liaison is established with them.  Contribute to preparation of Region IAP.

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j. Provide an information service in relation to:  Flood heights and flood behaviour.  Coastal erosion / inundation.  Road conditions and closures.  Advice on methods of limiting property damage.  Confirmation of evacuation warnings and evacuation orders. k. Direct the conduct of flood rescue operations. l. Direct the evacuation of people and/or communities. m. Provide immediate welfare support for evacuated people. n. Coordinate the provision of emergency food and medical supplies to isolated people and/or communities. o. Coordinate operations to protect property, for example by:  Arranging resources for sandbagging operations.  Lifting or moving household furniture.  Lifting or moving commercial stock and equipment. p. Arrange for support (for example, accommodation and meals) for emergency service organisation members and volunteers assisting them. q. Ensure that the managers of caravan parks are advised of flood warnings and the details of any evacuation order. r. If NSW SES resources are available, assist with emergency fodder supply operations conducted by Agriculture and Animal Services. s. If NSW SES resources are available, assist the NSW Police Force, RMS and Council with road closure and traffic control operations. t. Exercise financial delegations relating to the use of emergency orders as laid down in the NSW SES Controllers’ Guide. u. Coordinate the collection of flood and coastal erosion/inundation information for development of intelligence. v. Submit Situation Reports to the NSW SES Illawarra South Coast Region Headquarters and agencies assisting within the council area. These will contain information on:  Road conditions and closures.  Current flood behaviour.  Current operational activities.  Likely future flood behaviour.  Likely future operational activities.  Probable resource needs.

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w. Keep the Local Emergency Operations Controller advised of the flood situation and the operational response. x. Issue the ‘All Clear’ when flood operations have been completed. Recovery y. Ensure that appropriate After Action Reviews are held after floods. z. Provide appropriate representation to the recovery committee for the duration of the response phase of an event and as agreed during the recovery phase. 1.5.3 NSW SES Bega, Bermagui and Eden Unit Controllers: a. Assist the NSW SES Bega Valley Local Controller with flood preparedness activities, including:  Flood planning.  Training of unit members.  The development of flood and coastal erosion/inundation intelligence.  The development of warning services.  Floodplain and coastal risk management initiatives.  Public education. b. Conduct flood and coastal erosion operations within the Bega Valley Shire Council area as directed by the NSW SES Bega Valley Local Incident Controller. c. Submit Situation Reports to the NSW SES Bega Valley Local Headquarters, the NSW SES Illawarra South Coast Region Headquarters and agencies assisting within the local area. 1.5.4 NSW SES Bega, Bermagui and Eden Unit Members: a. Carry out flood and coastal erosion response tasks. These may include:  The management of the NSW SES Bega Valley Local and Unit Headquarters Operations Centres.  Assist in the collection of flood and coastal erosion/inundation information for the development of intelligence.  Flood rescue.  Evacuation.  Providing immediate welfare for evacuated people.  Delivery of warnings and information.  Resupply.  Sandbagging.  Lifting and/or moving household furniture and commercial stock.

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 Animal rescue.  Assisting with road closure and traffic control operations.  Assisting with emergency fodder supply operations. b. Assist with preparedness activities. c. Undertake training in flood and storm response operations. 1.5.5 Agriculture and Animal Services Functional Area: a. When requested by NSW SES:  Activate the Agriculture and Animal Services Supporting Plan as required and coordinate the provision of required services which may include:

. Supply and delivery of emergency fodder. . Coordinate the management of livestock and farm animals. . Advice on dealing with dead and injured farm animals. . Financial, welfare and damage assessment assistance to flood affected farmers. . Operation of animal shelter compound facilities for the domestic pets and companion animals of evacuees. b. Forestry Corporation of NSW  Close and evacuate at risk camping grounds in Forestry Corporation of NSW managed areas. 1.5.6 The Ambulance Service of NSW: a. Assist with the evacuation of at risk communities (in particular elderly and/or infirm people). b. Deploy ambulance resources to appropriate locations if access is expected to be lost. c. Assist the NSW SES with flood rescue operations. 1.5.7 Australian Government Bureau of Meteorology (The Bureau): a. Provide Flood Watches that cover the region. b. Provide Flood Warnings, incorporating height-time predictions, for the Bega North Gauge (AWRC No. 219900). c. Provide severe weather warnings when large waves and/or storm surge conditions are forecast to result in coastal erosion/inundation. d. Provide severe weather warnings when flash flooding is likely to occur. 1.5.8 Caravan Park Proprietor(s): a. Prepare a Flood Management Plan for the Caravan Park. b. Install flood depth indicators and road alignment markers within their caravan parks.

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c. Ensure that owners and occupiers of caravans are aware that the caravan park is flood liable by:  Handing a printed notice to occupiers taking up residence. The notice will indicate that the caravan park is liable to flooding and outline the evacuation and van relocation arrangements.  Displaying this notice prominently in each van. d. Ensure that owners and occupiers of caravans are aware that if they are expecting to be absent from their vans for extended periods, they must:  Provide the manager with a key; in a sealed envelope; to the van.  Provide a contact address and telephone number.  Inform the manager if a vehicle will be required to relocate the van during flood time.  Leave any mobile van in a condition allowing it to be towed in an emergency (i.e.: tyres inflated, jacks wound up, personal effects secured and annexes and lines for water, sewer, electricity and gas readily detachable). e. Ensure that occupiers are informed of Flood Warnings and Flood Watches. At this time, occupiers should be advised to:  Ensure that they have spare batteries for their radios.  Listen to a local radio station for updated flood information.  Prepare for evacuation and van relocation. f. Ensure that owners and occupiers of caravans are aware of what they must do to facilitate evacuation and van relocation when flooding occurs. Owners of Vans which are incapable of being relocated should ensure they are securely anchored to their site to avoid being swept away. g. Coordinate the evacuation of people and the relocation of moveable vans when floods are rising and their return when flood waters have subsided. Vans will be towed back to the caravan park(s) by van owners or by vehicles and drivers arranged by the park managers. h. Inform the NSW SES of the progress of evacuation and/or van relocation operations and of any need for assistance in the conduct of these tasks. 1.5.9 Child Care Centres and Preschools: a. Childcare Centres are to be contacted by the NSW SES in the event of possible flooding or isolation. b. When notified the child care centres and preschools should:  Liaise with the NSW SES and arrange for the early release of children whose travel arrangements are likely to be disrupted by flooding and/or road closures.

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 Assist with coordinating the evacuation of preschools and child care centres. 1.5.10 Energy and Utility Services Functional Area: a. When requested by NSW SES:  Implement the Energy and Utilities Services Functional Area Supporting Plan.  Where required, coordinate energy and utility services emergency management planning, preparation, response and recovery, including the restoration of services following a flood event.  Coordinate advice to the NSW SES of any need to disconnect electricity, gas, water or wastewater services.  Assist the NSW SES to identify infrastructure at risk of flooding for incorporation into planning and intelligence.  Identify interdependencies between flooding and utility services due to secondary impacts of flooding and advise the NSW SES.  Assist the NSW SES with advisory notices relating to hazards from utility services during flooding.  Coordinate with utilities on restoration of services, including advisory notices relating to estimated time for restoration and mandatory safety checks prior to reconnection. Advise the NSW SES and the relevant recovery committee and coordinator of the timetable for restoration. b. Local Providers (electricity, gas, water, waste water): Essential Energy (electricity)  Provide advice to the NSW SES Bega Valley Local Controller of any need to disconnect power/gas/water/waste water supplies or of any timetable for reconnection.  Advise the NSW SES of any hazards from utility services during flooding and coastal erosion/inundation.  Advise the public with regard to electrical hazards during flooding and coastal erosion/inundation, and to the availability or otherwise of the electricity supply.  Clear or make safe any hazard caused by power lines or electrical reticulation equipment.  Inspect, test and reconnect customers’ electrical/ gas/ water/waste water installations as conditions allow.  Assist the NSW SES to identify infrastructure at risk of flooding for incorporation into planning and intelligence.

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1.5.11 Engineering Services Functional Area: a. When requested by NSW SES:  Provide engineering advice regarding the integrity of damaged structures.  Assist the NSW SES with damage assessment.  Acquire and/or provide specialist technical engineering expertise.  Assist the NSW SES and councils with the assessment and operation of flood protection levees when requested.  Assist with property protection, including the construction or repair of levees.  Coordinate the restoration of critical public facilities.  Establish recovery centre facilities. 1.5.12 Environmental Services Functional Area: a. When requested by NSW SES:  Implement the Environmental Services Functional Area (Enviroplan) Supporting Plan if required.  Activate the Hazmat/CBR Emergency Sub Plan if required. 1.5.13 Fire and Rescue NSW, Bega, Eden and Merimbula: a. Assist the NSW SES with the delivery of evacuation warnings and evacuation orders. b. Assist the NSW SES with the conduct of evacuations. c. Provide equipment for pumping flood water out of buildings and from low-lying areas. d. Assist with clean-up operations, including the hosing out of flood affected properties. e. Deploy fire resources to appropriate locations if access is expected to be lost. 1.5.14 Health Services Functional Area: a. When requested by NSW SES:  Activate Healthplan if required.  Ensure that appropriate business continuity plans are developed for essential health infrastructure and are activated during floods.  Provide medical support to the NSW SES.  Establish health surveillance in affected areas.

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 Assess potential public health risks that either acutely endanger the health of human populations or are thought to have longer term consequences.  Provide environmental health advice.  Provide public health warnings and advice to affected communities.  Assist the NSW SES with the warning and evacuation of hospitals. 1.5.15 Marine Rescue NSW: a. Assist the NSW SES with the delivery of evacuation warnings and evacuation orders. b. Assist the NSW SES with the conduct of evacuations. 1.5.16 NSW Office of Water: a. Collect and maintain flood data including data relating to flood heights, velocities and discharges. b. Provide the Bureau of Meteorology and NSW SES real-time or near real- time access to river height gauges and height data for the development of official flood warnings. c. Provide flow rating charts for river height gauges. d. Manage (with technical support from OEH) the approval process under the Water Act 1912 and Water Management Act 2000 for flood control works (earthworks, embankments and levees which can affect the distribution of floodwaters) including:  Assessment and approval of flood control works (including flood mitigation works) in rural areas designated under the Acts.  Use of floodplain management plans prepared by OEH in rural areas designated under the Acts to assess flood control work approvals.  Giving the NSW SES access to relevant studies regarding flooding and studies supporting floodplain management plans prepared by OEH including flood studies, floodplain risk management studies and flood behaviour investigations. 1.5.17 NSW Police Force, Far South Coast Local Area Command (LAC): a. Assist the NSW SES with the delivery of evacuation warnings and evacuation orders. b. Assist the NSW SES with the conduct of evacuation operations. c. Conduct road and traffic control operations in conjunction with council and/or RMS. d. Coordinate the registration of evacuees. e. Secure evacuated areas.

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1.5.18 NSW Rural Fire Service (RFS Far South Coast): a. Provide personnel in rural areas and villages to:  Inform the NSW SES Bega Valley Local Controller about flood conditions and response needs in their own communities, and  Disseminate flood information. b. Provide personnel and high-clearance vehicles for flood related activities. c. Assist the NSW SES with the delivery of evacuation warnings and evacuation orders. d. Assist the NSW SES with the conduct of evacuations. e. Provide equipment for pumping flood water out of buildings and from low-lying areas. f. Assist with the removal of caravans. g. Provide back-up radio communications. h. Assist with clean-up operations, including the hosing of flood affected properties. i. Deploy fire resources to appropriate locations if access is expected to be lost. 1.5.19 Office of Environment and Heritage: a. Provide specialist policy, engineering and scientific advice to councils and the NSW SES on flood related matters including assistance with:  The identification of flood problems.  The preparation of Floodplain Risk Management Plans and associated studies.  The implementation of floodplain risk management plans. This involves floodplain management projects which include flood mitigation works, flood warning, strategic land use planning and upgrade of evacuation routes.  The exercising of Local Flood Plans. b. Provide specialist advice flood related matters as follows:  Provide the NSW SES with access to relevant studies regarding flooding, including Flood Studies and Floodplain Risk Management Studies.  Coordinate the collection of post event flood data, in consultation with the NSW SES.  Provide advice to the NSW SES about conditions which may lead to coastal flooding or retarded river drainage near the coast.

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 Collect and maintain flood data relating to flood heights, velocities and discharges in coastal areas of NSW (through a contract with MHL as discussed separately).  Provide data to the Bureau of Meteorology and NSW SES real-time or near real-time access to river height gauges and height data for the development of official flood warnings (through a contract with MHL as described in the Response section of this plan). c. National Parks and Wildlife Service  Close and evacuate at risk camping grounds in National Parks managed areas. 1.5.20 Public Information Functional Area: a. When requested by NSW SES:  Assist the NSW SES in the establishment and operation of a Joint Media Information Centre. 1.5.21 Roads and Maritime Services will: a. Close and reopen roads under their management and control if affected by flood waters and advise the NSW SES of their status. b. Facilitate the safe reliable access of emergency resources on RMS managed roads. c. Assist the NSW SES with identification of road infrastructure at risk of flooding. d. Manage traffic. e. Assist the NSW SES with the communication of warnings and information provision to the public through variable message signs. 1.5.22 School Administration Offices (including Catholic Education Office, Archdiocese of Canberra and Goulburn, Department of Education & Communities, Illawarra & South East and Private Schools): a. Liaise with the NSW SES and arrange for the early release of students whose travel arrangements are likely to be disrupted by flooding and/or road closures (or where required, for students to be moved to a suitable location until normal school closing time). b. Pass information to school bus drivers/companies and/or other schools on expected or actual impacts of flooding. c. Pass information from school bus drivers/companies and/or other schools on expected or actual impacts of flooding when they are aware of conditions in their local area. d. Assist with coordinating the evacuation of schools when flooding or isolation is expected to occur. e. Provide space in schools for evacuation centres where necessary.

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1.5.23 Surf Life Saving NSW: a. Assist the NSW SES with the warning and/or evacuation of at risk communities; b. Provide space in Surf Life Saving facilities for evacuation centres where required; and c. Assist the NSW SES with flood rescue operations. 1.5.24 Telecommunication Services Functional Area: a. When requested by NSW SES:  Coordinate the restoration of telephone facilities damaged by flooding.  Coordinate additional telecommunications support for the NSW SES Headquarters as required.  Assist the NSW SES to identify infrastructure at risk of flooding for incorporation into planning and intelligence. 1.5.25 Transport Services Functional Area: a. When requested by NSW SES:  Assist with the coordination of transport for evacuation purposes.  Assist with the resupply of isolated communities and/or properties. 1.5.26 Welfare Services Functional Area: a. When requested by NSW SES:  Establish and manage evacuation centres, and provide disaster welfare services from recovery centres.  Administer the Personal Hardship and Distress component of the NSW Disaster Relief Scheme established to provide financial assistance to people affected by emergencies. 1.5.27 Volunteer Rescue Association (VRA), Bega: a. Assist the NSW SES Bega Valley Local Controller with flood operations, with equipment, resources and appropriately trained members within their capabilities. 1.5.28 Bega Valley Shire Council Local Emergency Operations Controller (LEOCON): a. Monitor flood operations. b. Coordinate support to the NSW SES Bega Valley Local Controller if requested to do so. 1.5.29 Bega Valley Shire Council Local Emergency Management Officer: a. Provide executive support to the LEMC and LEOCON in accordance with the Bega Valley Shire Council Local Emergency Management Plan.

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b. At the request of the NSW SES Bega Valley Local Controller, advise appropriate agencies and officers of the start of response operations. 1.5.30 Bega Valley Shire Council: Preparedness a. Establish and maintain floodplain and coastal risk management committees and ensure that key agencies are represented on such committees. b. Provide levee studies, flood studies, floodplain management studies and coastal management studies to the NSW SES. c. Maintain Dam Safety Emergency Plans for the dams owned by council listed in 1.5.31 and provide copies to the NSW SES. d. Provide information on the consequences of dam failure to the NSW SES for incorporation into planning and flood intelligence. e. Maintain a plant and equipment resource list for the council area. f. Contribute to the development and implementation of a public education program in partnership with the NSW SES. Response g. At the request of the NSW SES Local Controller, deploy personnel and resources for flood and coastal erosion related activities. h. Close and reopen council roads (and other roads nominated by agreement with the RMS) and advise the NSW SES Bega Valley Local Controller and the Police. i. Provide information on the status of roads. j. Provide filled sandbags at locations requested by the NSW SES. k. In the event of evacuations, assist with making facilities available for the domestic pets and companion animals of evacuees. l. During periods of coastal erosion from ocean storms:  Assist the NSW SES with reconnaissance of coastal erosion risk areas.  Liaise with the NSW SES Local Controller to provide advice regarding the need for response actions by the NSW SES such as evacuations.  Activate the Bega Valley Shire Council Coastal Zone Management Plan – Emergency Action Plan (When compiled). Recovery m. Provide for the management of health hazards associated with flooding. This includes removing debris and waste. n. Ensure premises are fit and safe for reoccupation and assess any need for demolition. o. Arrange for storage of evacuees' furniture as required.

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1.5.31 Owners of Prescribed Dams within or upstream of Bega Valley:

Dam Owner Cochrane Dam Eraring Energy - Brown Mountain Yellow Pinch Dam Bega Valley Shire Council Ben Boyd Dam Bega Valley Shire Council Tilba Dam Bega Valley Shire Council Brogo Dam State Water

a. Maintain and operate the Dam Failure Warning System for their Dam(s). b. Contribute to the NSW SES’s public education program on flooding within the council area. c. Consult with NSW SES on the determination of dam failure alert levels and notification arrangements when developing Dam Safety Emergency Plans. d. Maintain a Dam Safety Emergency Plan and provide copies to the NSW SES. e. Provide information on the consequences of dam failure to the NSW SES for incorporation into planning and flood intelligence. f. Close and evacuate at risk camping grounds/recreational areas within their managed areas particularly Sapphire Valley Caravan Park in consultation with the g. NSW SES and as outlined in the DSEP.

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PART 2 - PREPAREDNESS

2.1 MAINTENANCE OF THIS PLAN

2.1.1 The NSW SES Bega Valley Local Controller will maintain the currency of this plan by: a. Ensuring that all agencies, organisations and officers mentioned in it are aware of their roles and responsibilities. b. Conducting exercises to test arrangements. c. Reviewing the contents of the plan:  After each flood operation.  When significant changes in land-use or community characteristics occur.  When new information from flood studies become available.  When flood control or mitigation works are implemented or altered.  When there are changes that alter agreed plan arrangements. 2.1.2 The plan is to be reviewed no less frequently than every five years.

2.2 FLOODPLAIN AND COASTAL RISK MANAGEMENT

2.2.1 The NSW SES Bega Valley Local Controller will ensure that: a. NSW SES participates in local floodplain and coastal risk management committee activities when those committees are formed, in accordance with the protocols outlined in the NSW SES Controllers’ Guide. b. The NSW SES Illawarra South Coast Region Headquarters is informed of involvement in floodplain and coastal risk management activities.

2.3 DEVELOPMENT OF FLOOD INTELLIGENCE

2.3.1 Flood intelligence describes flood behaviour and its effects on the community. 2.3.2 The NSW SES maintains a centralised flood intelligence system.

2.4 DEVELOPMENT OF WARNING SYSTEMS

2.4.1 The NSW SES may establish a total flood warning system for areas affected by flooding. This requires: a. An identification of the potential clients of flood warning information at different levels of flooding (i.e. who would be affected in floods of differing severities). b. Available information about the estimated impacts of flooding at different heights.

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c. Identification of required actions and the amounts of time needed to carry them out. d. Appropriate means of disseminating warnings to different clients and at different flood levels.

2.5 PUBLIC EDUCATION

2.5.1 The NSW SES Bega Valley Local Controller, with the assistance of the Bega Valley Shire Council, the NSW SES Illawarra South Coast Region Headquarters and NSW SES State Headquarters, is responsible for ensuring that the residents of the council area are aware of the flood threat in their vicinity and how to protect themselves from it. 2.5.2 Specific strategies to be employed include: a. Dissemination of flood-related brochures and booklets in flood liable areas. b. Dissemination of coastal erosion related brochures in coastal erosion liable areas. c. Talks and displays orientated to community organisations, businesses and schools. d. Publicity given to this plan and to flood-orientated NSW SES activities through local media outlets, including articles in local newspapers about the flood threat and appropriate responses. e. In the case of the threat posed by a potential failure of Cochrane Dam, Eraring Energy and the NSW SES will provide information to potentially affected households in the Bemboka River valley.

2.6 TRAINING

2.6.1 Throughout this document there are references to functions that must be carried out by the members of the NSW SES Bega, Bermagui and Eden Unit(s). The NSW SES Bega Valley Local Controller is responsible for ensuring that the members are: a. Familiar with the contents of this plan. b. Trained in the skills necessary to carry out the tasks allocated to the NSW SES.

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2.7 RESOURCES

2.7.1 The NSW SES Bega Valley Local Controller is responsible for maintaining the condition and state of readiness of NSW SES equipment and the NSW SES Bega Valley Local Headquarters. 2.7.2 The NSW SES Bega, Bermagui and Eden Unit Controllers have similar responsibilities in relation to the Bega, Bermagui and Eden Unit Headquarters and equipment.

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PART 3 - RESPONSE CONTROL

3.1 CONTROL ARRANGEMENTS

3.1.1 The NSW SES is the legislated Combat Agency for floods and is responsible for the control of flood operations. This includes the coordination of other agencies and organisations for flood management tasks. 3.1.2 The NSW SES is the designated Combat Agency for damage control for storms. This includes damage control for coastal erosion and inundation from storm activity, specifically the protection of life and the coordination of the protection of readily moveable household goods and commercial stock and equipment. The NSW SES is not responsible for planning or conduct of emergency beach protection works or other physical mitigation works. 3.1.3 The Local EMPLAN will operate to provide support as requested by the NSW SES Local Incident Controller.

3.2 OPERATIONAL MANAGEMENT

3.2.1 NSW SES utilises the Australasian Inter-service Incident Management System (AIIMS), which is based on three principles: a. Functional management; b. Management by objectives; and c. Span of control. 3.2.2 AIIMS provides for different incident levels based on the complexity of management. 3.2.3 The Local Government Area may be divided into sectors and divisions to manage the flood and/or coastal erosion event (divisions are usually a group of sectors). 3.2.4 Sectors and divisions may be based on floodplain classifications, geographical, physical or functional boundaries. A town, city or suburb may be one sector or split into several sectors and divisions.

3.3 START OF RESPONSE OPERATIONS

3.3.1 This plan is always active to ensure that preparedness actions detailed in this plan are completed. 3.3.2 Response operations will begin: a. On receipt of a Bureau of Meteorology Preliminary Flood Warning, Flood Warning, Flood Watch, Severe Thunderstorm Warning or a Severe Weather Warning for flash flooding or severe ocean conditions.

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b. On receipt of a dam failure alert. c. When other evidence leads to an expectation of flooding or coastal erosion within the council area. 3.3.3 Contact with the Bureau of Meteorology to discuss the development of flood warnings will normally be through the NSW SES Illawarra South Coast Region Headquarters and/or NSW SES State Headquarters. 3.3.4 The following persons and organisations will be advised of the start of response operations regardless of the location and severity of the flooding anticipated: a. NSW SES Illawarra South Coast Region Headquarters. b. NSW SES Bega, Bermagui and Eden Controllers. c. NSW SES Bega, Bermagui and Eden Unit. d. Bega Valley Shire Council Local Emergency Operations Controller (for transmission to the NSW Police Force Local Area Command Headquarters). e. Bega Valley Shire Council Local Emergency Management Officer (for transmission to appropriate council officers and departments). f. Bega Valley Shire Council Mayor. g. Other agencies listed in this plan will be advised by the Local Emergency Management Officer on the request of the NSW SES Bega Valley Local Incident Controller and as appropriate to the location and nature of the threat.

3.4 RESPONSE STRATEGIES

3.4.1 The main response strategies for NSW SES flood operations include: a. Information Provision and Warning  Provision of warnings, information and advice to communities.  Inform the community regarding the potential impacts of a flood and what actions to undertake in preparation for flooding.  Inform the community regarding the potential impacts of coastal erosion and what preparatory actions to undertake.  Provide timely and accurate information to the community. b. Property protection  Protect the property of residents and businesses at risk of flood damage.  Assistance with property protection by way of sandbagging and the lifting or transporting of furniture, personal effects, commercial stock and caravans.

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 Assistance with the relocation of readily moveable household goods and commercial stock and equipment from properties threatened by coastal erosion.  Assistance with the protection of essential infrastructure. c. Evacuation  The temporary movement of people from a dangerous or potentially dangerous place to a safe location, and their eventual return. It is a safety strategy which uses distance to separate people from the danger created by the hazard. d. Rescue  The safe removal of persons or domestic animals from actual or threatened danger of physical harm by floodwaters. e. Resupply  Minimise disruption upon the community by resupplying towns and villages which have become isolated as a consequence of flooding.  Ensure supplies are maintained to property owners by coordinating the resupply of properties which have become isolated as a consequence of flooding. 3.4.2 The NSW SES Local Incident Controller will select the appropriate response strategy to deal with the expected impact of the flood in each sector and/or community. The impact may vary so a number of different strategies may to be selected and implemented across the whole operational area. The available strategies for each sector and/or community are maintained by the NSW SES. 3.4.3 Supporting strategies may include: a. Protect the community from incidents involving fire and hazardous materials. b. Maintain the welfare of communities and individuals affected by the impact of a flood. c. Minimise disruption to the community by ensuring supply of essential energy and utility services. d. Ensure coordinated health services are available to and accessible by the flood affected communities. e. Maintain the welfare of animals affected by the impact of a flood.

3.5 OPERATIONS CENTRES

3.5.1 The NSW SES Bega Valley Operations Centre is located at 14-18 Minyama Parade, Bega.

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3.5.2 NSW SES Unit Operations Centres are located at: a. 14-18 Minyama Parade, Bega b. 14 Wirriga Street, Eden c. 1B Bega-Tathra Road, Bermagui. 3.5.3 Supporting EOCs are located at: a. The Bega Valley Shire Council Emergency Operations Centre is located at Maher Street, Bega. b. The alternative EOC is located at Bega Valley Shire Council Chambers, Zingel Place, Bega.

3.6 LIAISON

3.6.1 Any agency with responsibilities identified in this plan may be requested by the NSW SES to provide liaison (including a liaison officer where necessary) to the NSW SES Bega Valley Operations Centre. 3.6.2 Liaison officers are to: a. Have the authority to deploy the resources of their parent organisations at the request of the NSW SES Bega Valley Local Incident Controller, b. Advise the NSW SES Bega Valley Local Incident Controller on resource availability for their service, and c. Be able to provide communications to their own organisations.

3.7 END OF RESPONSE OPERATIONS

3.7.1 When the immediate danger to life and property has passed the NSW SES Region Incident Controller or the NSW SES Local Incident Controller will issue an 'All Clear' message signifying that response operations have been completed. The message will be distributed through the same media outlets as earlier evacuation messages. The relevant Controller will also advise details of recovery coordination arrangements, arrangements made for clean-up operations prior to evacuees being allowed to return to their homes, and stand-down instructions for agencies not required for recovery operations.

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PLANNING

3.8 COLLATING SITUATIONAL INFORMATION

Strategy 3.8.1 The NSW SES maintains and records situational awareness of current impacts and response activities. Actions 3.8.2 The NSW SES Bega Valley Local Headquarters collates information on the current situation in the Bega Valley Shire Council LGA and incorporates in Situation Reports. 3.8.3 The NSW SES Illawarra South Coast Region Headquarters collates Region-wide information for inclusion in Region NSW SES Situation Reports. 3.8.4 Sources of situational information during times of flooding are: a. Agency Situation Reports. Agencies and functional areas provide regular situation reports (SITREPs) to the NSW SES. b. Active Reconnaissance. The NSW SES Bega Valley Local Incident Controller is responsible for coordinating the reconnaissance of impact areas, recording and communicating observations. Reconnaissance can be performed on the ground and using remote sensing (more commonly aerial). c. The Bureau of Meteorology’s Flood Warning Centre provides river height and rainfall information, data is available on the website http://www.bom.gov.au/nsw/flood/. d. Manly Hydraulics Laboratory (a business unit within NSW Public Works) automated river watch system funded by the Office of Environment and Heritage. This system provides river height and rainfall readings for a number of gauges in the Bega Valley Shire Council area. Recent data from this system is available on the Manly Hydraulic Laboratory website: http://www.mhl.nsw.gov.au. A history of area floods is also available upon request via the website. e. NSW Office of Water Office. This office advises flow rates and rates of rise for the Bega River Basin. Daily river reports containing information on gauge heights and river flows are available from the website: http://waterinfo.nsw.gov.au/. f. Cochrane Dam Storage Monitoring System. Eraring Energy provides information on flows over Cochrane Dam in very severe floods and manages the Cochrane Dam-Failure Warning System. g. NSW SES Illawarra South Coast Region Headquarters. The Region Headquarters provides information on flooding and its consequences,

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including those in nearby council areas (this information is documented in Bulletins and Situation Reports). h. Bega Valley Shire Council. 3.8.5 During flood operations sources of information on roads closed by flooding include: a. Bega Valley Shire Council website. b. Far South Coast Local Area Command, NSW Police Force. c. Roads and Maritime Services (website and/or telephone service). d. NSW SES Region Headquarters. e. NSW SES Local and Unit Headquarters. 3.8.6 Situational information relating to consequences of flooding and/or coastal erosion should be used to verify and validate NSW SES Flood Intelligence records.

3.9 PROVISION OF FLOOD INFORMATION AND WARNINGS

Strategy 3.9.1 The NSW SES Bega Valley Local Headquarters provides advice to the NSW SES Illawarra South Coast Region Headquarters on current and expected impacts of flooding in the Bega Valley Shire Council LGA. 3.9.2 The NSW SES Illawarra South Coast Region Headquarters issues NSW SES Flood Bulletins, NSW SES Livestock and Equipment Warnings, Evacuation Warnings and Evacuation Orders to media outlets and agencies on behalf of all NSW SES units in the Region. Actions 3.9.3 The NSW SES Bega Valley Local Incident Controller will ensure that the NSW SES Illawarra South Coast Region Incident Controller is regularly briefed on the progress of operations. 3.9.4 NSW SES Bega Valley Local Headquarters operations staff will be briefed regularly so that they can provide information in response to inquiries received in person or by other means such as phone or fax. 3.9.5 Bureau of Meteorology Severe Thunderstorm Warning. These are issued direct to the media by the Bureau when severe thunderstorms are expected to produce dangerous or damaging conditions, including flash flooding. Severe thunderstorms are usually smaller in scale than events covered by Flood Watches and Severe Weather Warnings. 3.9.6 Bureau of Meteorology Severe Weather Warnings for Flash Flooding. These are issued direct to the media by the Bureau and provide a warning of the possibility for flash flooding as a result of intense rainfall. These warnings are issued when severe weather is expected to affect land based communities with 6 to 24 hours. Severe Weather Warnings may also include other

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conditions such as Damaging Surf, Dangerous Surf or tides, or Damaging Winds. 3.9.7 Bureau of Meteorology Flood Watches. Flood Watches are issued by the Bureau to advise people of the potential for flooding in a catchment area based on predicted or actual rainfall. Flood Watches will be included in NSW SES Flood Bulletins issued by the NSW SES Illawarra South Coast Region Headquarters. 3.9.8 Bureau of Meteorology Flood Warnings. The NSW SES Illawarra South Coast Region Headquarters will send a copy of Bureau Flood Warnings to the NSW SES Bega Valley Unit. On receipt the NSW SES Local Incident Controller will provide the NSW SES Illawarra South Coast Region Headquarters with information on the estimated impacts of flooding at the predicted heights for inclusion in NSW SES Region Flood Bulletins. 3.9.9 NSW SES Livestock and Equipment Warnings. Following heavy rain or when there are indications of significant creek or river rises (even to levels below Minor Flood heights); the NSW SES Bega Valley Local Incident Controller will advise the NSW SES Illawarra South Coast Region Headquarters which will issue NSW SES Livestock and Equipment Warnings. 3.9.10 NSW SES Local Flood Advices. The NSW SES Local Incident Controller may issue Local Flood Advices for locations not covered by Bureau Flood Warnings. They may be provided verbally in response to phone inquiries but will normally be incorporated into NSW SES Region Flood Bulletins. 3.9.11 NSW SES Flood Bulletins. The NSW SES Illawarra South Coast Region Headquarters will regularly issue NSW SES Flood Bulletins which describe information on the estimated impacts of flooding at the predicted heights (using information from Bureau Flood Warnings and NSW SES Local Flood Advices) to NSW SES units, media outlets and agencies on behalf of all NSW SES units in the Region. When operations relating to coastal erosion/inundation are being undertaken, NSW SES Region Bulletins will contain information and advice about property damage mitigation measures and evacuation in affected areas. 3.9.12 NSW SES Evacuation Warnings and Evacuation Orders. These are usually issued to the media by the NSW SES Region Incident Controller on behalf of the NSW SES Local Incident Controller. 3.9.13 Dam Failure Alerts. Dam failure alerts are issued to NSW SES by the dam owner, in accordance with arrangements in the Dam Safety Emergency Plan (DSEP), the system involves the Dam Owner notifying NSW SES State Headquarters Operations Communications Centre, who in turn distribute the warning to the NSW SES Region Headquarters and NSW SES Unit Headquarters. 3.9.14 A flow chart illustrating the notification arrangements for potential dam failure is shown in Attachment 2.

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3.9.15 Dam failure alert levels are set in consultation with the NSW SES and are used to trigger appropriate response actions. The conditions that define each of the alert levels are listed in the relevant DSEP. Responses escalate as the alert level migrates from white to amber to red. Table 1 briefly outlines example defining conditions and appropriate NSW SES responses associated with each alert. Alert Example Defining NSW SES Response NSW SES Warning Level Condition Product White May be a structural Implements notification This is a preliminary anomaly. flowchart. alert to assist the NSW SES in its preparation. May be increased Check operational readiness. This is not a public monitoring in response to alert. a heavy rainfall event Amber Failure possible if storage Implements notification NSW SES Evacuation level continues to rise or flowchart. Warning structural anomaly not fixed Warn downstream population at risk to prepare to evacuate Red Failure imminent or Implements notification NSW SES Evacuation occurred flowchart. Order

Evacuation of downstream populations Table 1: Dam Failure Alert Levels Note: Some DSEPs will have alert levels that proceed directly from White to Red. This is the case if adequate time does not exist between the three alert levels to evacuate the downstream population at risk. The decision to omit the Amber Alert level, and the general setting of Alert levels should be undertaken in consultation with the NSW SES.

3.9.16 The NSW SES / Dam Owner will disseminate warnings to the population at risk of dam failure (these arrangements are specific to each dam, are negotiated between the Dam Owner and NSW SES, and are documented in the DSEP). 3.9.17 Special arrangements apply in the case of severe flooding that may have the potential to cause the failure of Yellow Pinch and Ben Boyd Dams. Details of these arrangements are maintained by the NSW SES. 3.9.18 Standard Emergency Warning Signal (SEWS). This signal may be played over radio and television stations to alert communities to Evacuation Warnings, Evacuation Orders, Special Warnings or Dam-Failure Warnings. Approval to use the signal is associated with who approves the warning/order message. 3.9.19 The Public Information and Inquiry Centre (PIIC) (operated by the NSW Police Force) will answer calls from the public regarding registered evacuees.

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3.9.20 The Disaster Welfare Assistance line is a central support and contact point for disaster affected people inquiring about welfare services advice and assistance. 3.9.21 The RMS Transport Information Line will provide advice to callers on the status of roads. The RMS website also lists road closure information. 3.9.22 Bega Valley Shire Council will provide information on the status of roads. 3.9.23 Collation and dissemination of road information is actioned as follows: a. As part of Situation Reports, the NSW SES Bega Valley Local Incident Controller provides road status reports for main roads in the council area to the NSW SES Illawarra South Coast Region Headquarters. b. The NSW SES Illawarra South Coast Region Headquarters distributes information on main roads to NSW SES units, media outlets and agencies as part of NSW SES Flood Bulletins. OPERATIONS

3.10 AIRCRAFT MANAGEMENT

3.10.1 Aircraft can be used for a variety of purposes during flood operations including evacuation, rescue, resupply, reconnaissance and emergency travel. 3.10.2 Air support operations will be conducted under the control of the NSW SES Region Headquarters, which may allocate aircraft to units if applicable. 3.10.3 NSW SES maintains the following information for the Bega Valley Shire Council area: a. Locations of suitable helicopter landing points. b. Locations of suitable airports and records detailing aircraft size and type that can land at airports. c. Intelligence on when access to these locations is expected to be lost.

3.11 ASSISTANCE FOR ANIMALS

3.11.1 Matters relating to the welfare of livestock, companion animals and wildlife are to be referred to Agriculture and Animal Services. 3.11.2 Requests for emergency supply and/or delivery of fodder to stranded livestock, or for livestock rescue, are to be referred to Agriculture and Animal Services. 3.11.3 Requests for animal rescue should be referred to the NSW SES.

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3.12 COMMUNICATION SYSTEMS

3.12.1 The primary means of communications between fixed locations is by telephone, email and facsimile. 3.12.2 The primary means of communication to and between deployed NSW SES resources is by NSW SES GRN with PMR South of Eden, but radios also have: a. RFS channels b. UHF-CB channels c. Emergency service liaison channels. 3.12.3 All liaison officers will provide their own communication links back to their parent agencies. 3.12.4 All other organisations will provide communications as necessary to their deployed field teams. 3.12.5 Back-up communications are provided as follows: a. Bega Valley Shire Council b. Bega Valley Rural Fire Service

3.13 PRELIMINARY DEPLOYMENTS

3.13.1 When flooding is expected to be severe enough to cut road access to towns, within towns and/or rural communities, the NSW SES Bega Valley Local Incident Controller will ensure that resources are in place for the distribution of foodstuffs and medical supplies to the areas that could become isolated. 3.13.2 When access between locations is expected to be cut, the NSW SES Bega Valley Local Incident Controller will advise appropriate agencies so that resources (including sandbags, fire fighting appliances, ambulances, etc.) are deployed to ensure that operational capability is maintained.

3.14 ROAD AND TRAFFIC CONTROL.

3.14.1 A number of roads within the council area are affected by flooding. NSW SES maintains details of these roads. 3.14.2 The council closes and re-opens its own roads and acts as agent for the RMS for closing and re-opening the Princess Highway in Bega if required. 3.14.3 The RMS is responsible for the closure and re-opening of the Princes Highway and the Snowy Mountains Highway. 3.14.4 The NSW Police Force has the authority to close and re-open roads but will normally only do so (if the Council or the RMS have not already acted) if public safety requires such action when resources permit, the NSW SES assists Council, RMS or the Police by erecting road closure signs and barriers.

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3.14.5 In flood events, the NSW SES Bega Valley Local Incident Controller may direct the imposition of traffic control measures. The entry into flood affected areas will be controlled in accordance with the provisions of the State Emergency Service Act, 1989 (Part 5, Sections 19, 20, 21 and 22) and the State Emergency Rescue Management Act, 1989 (Part 4, Sections 60KA, 60L and 61). 3.14.6 Police, RMS or Council officers closing or re-opening roads or bridges affected by flooding are to advise the NSW SES Bega Valley Local Headquarters, which will then provide a road information service to local emergency services, the public and the NSW SES Illawarra South Coast Region Headquarters. All such information will also be passed to the Police, RMS and the Council.

3.15 STRANDED TRAVELLERS

3.15.1 Flood waters can strand travellers. Travellers seeking assistance will be referred to the Welfare Services Functional Area for the arrangement of emergency accommodation.

3.16 MANAGING PROPERTY PROTECTION OPERATIONS

Strategy 3.16.1 Protect the property of residents and businesses at risk of flood damage. Actions 3.16.2 The NSW SES is the responsible agency for the coordination of operations to protect property. 3.16.3 Property may be protected from floods by: a. Lifting or moving of household furniture. b. Lifting or moving commercial stock and equipment. c. Sandbagging to minimise entry of water into buildings. 3.16.4 The NSW SES maintains stocks of empty sandbags. 3.16.5 Property protection measures for the threat of coastal erosion involves the relocation of readily moveable household goods and commercial stock and equipment. The NSW SES is not responsible for planning or conduct of emergency beach protection works or other physical mitigation works.

3.17 MANAGING FLOOD RESCUE OPERATIONS

Strategy 3.17.1 Rescue of people from floods. Actions 3.17.2 The NSW SES Bega Valley Local Incident Controller controls flood rescue in Bega Valley Shire Council local government area.

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3.17.3 Flood rescues, may be carried out by accredited units in accordance with appropriate standards. 3.17.4 Additional flood boats and crews can be requested through the NSW SES Illawarra South Coast Region Headquarters. 3.17.5 There may be some residual population which did not evacuate during the early stages of flooding and which require rescue.

3.18 MANAGING EVACUATION OPERATIONS

Strategy 3.18.1 When there is a risk to public safety, evacuation is the primary strategy. Circumstances may include: a. Evacuation of people when their homes or businesses are likely to flood. b. Evacuation of people who are unsuited to living in isolated circumstances, due to flood water closing access. c. Evacuation of people where essential energy and utility services are likely to fail, have failed or where buildings have been made uninhabitable. d. Evacuation of people when their homes or business are at threat of collapse from coastal erosion. Actions 3.18.2 The evacuation operation will have the following stages: a. Decision to evacuate. b. Mobilisation (mobilisation may begin prior to the decision to evacuate). c. Evacuation Warning delivery. d. Evacuation Order delivery. e. Withdrawal. f. Shelter. g. Return. 3.18.3 During floods evacuations will be controlled by the NSW SES. Small-scale evacuations will be controlled by the NSW SES Bega Valley Local Incident Controller. Should the scale of evacuation operations be beyond the capabilities of local resources control may be escalated to the NSW SES Illawarra South Coast Region Incident Controller.

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Decision to evacuate 3.18.4 In most cases the decision to evacuate rests with the NSW SES Bega Valley Local Incident Controller who exercises his/her authority in accordance with Section 22(1) of The State Emergency Service Act 1989. However, the decision to evacuate will usually be made after consultation with the NSW SES Illawarra South Coast Region Incident Controller and the Local Emergency Operations Controller. 3.18.5 In events that require large scale evacuations, the decision to evacuate may be escalated to the Region or the State Incident Controller. 3.18.6 Some people will make their own decision to evacuate earlier and move to alternate accommodation, using their own transport. This is referred to as self-motivated evacuation.

Mobilisation 3.18.7 The NSW SES Local Incident Controller will mobilise the following to provide personnel for doorknock teams for designated Sectors/locations: a. NSW SES Bega Valley Unit members. b. RFS Far South Coast District members via the RFS Fire Control Officer. c. Local Police Force officers. 3.18.8 The NSW SES Illawarra South Coast Region Incident Controller will mobilise any additional personnel required to assist with doorknock teams using: a. NSW SES members from the NSW SES Illawarra South Coast Region and surrounding NSW SES Regions. b. FRNSW personnel arranged via the FRNSW Liaison Officer. c. RFS personnel arranged via the RFS Liaison Officer. 3.18.9 The NSW SES Local Incident Controller will request the Council Liaison Officer at the LEMC to provide Council personnel to assist with traffic coordination within Sector(s)/Community. 3.18.10 The NSW SES Local Incident Controller will arrange liaison officers for Sector Command Centres. 3.18.11 The NSW SES Illawarra South Coast Region Incident Controller will mobilise the required number of buses for Sectors via the Transport Services Functional Area Coordination Centre.

Delivery of Evacuation Warnings and Evacuation Orders 3.18.12 The NSW SES will advise the community of the requirements to evacuate. The NSW SES will issue an Evacuation Warning when the intent of an NSW SES Incident Controller is to warn the community of the need to prepare for a possible evacuation.

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3.18.13 The NSW SES will issue an Evacuation Order when the intent of the NSW SES Incident Controller is to instruct a community to immediately evacuate in response to an imminent threat. 3.18.14 The NSW SES Local Incident Controller will distribute Evacuation Warnings and Evacuation Orders to: a. Sector/Division Command Centres (where established). b. Bega Valley Shire Council Local Emergency Operations Centre. c. Bega Valley Shire Council. d. Far South Coast Local Area Command, NSW Police Force. e. Local Emergency Operations Controller, NSW Police Force f. Radio Stations. g. Other local agencies and specified individuals. 3.18.15 The NSW SES Illawarra South Coast Region Incident Controller will distribute Evacuation Warnings and Evacuation Orders to: a. The NSW SES State Operations Centre. b. The NSW SES Bega Valley Local Incident Controller. c. Affected communities via dial-out warning systems where installed or applicable. d. Relevant media outlets and agencies. e. Regional Emergency Management Officer. f. Regional Emergency Operations Controller, NSW Police Force. 3.18.16 Evacuation Warnings and Evacuation Orders may be delivered through: a. Radio and television stations. b. Doorknocking by emergency service personnel. c. Public address systems (fixed or mobile). d. Telephony-based systems (including Emergency Alert). e. Two-way Radio. f. Direct access to Radio Station - ABC South East. g. The Standard Emergency Warning Signal (SEWS) may be used to precede all Evacuation Orders broadcast on Radio Stations. 3.18.17 Doorknock teams will work at the direction of the Local Incident Controller. 3.18.18 Field teams conducting doorknocks will record and report back the following information to their Sector Commander/Division Commander/Local Incident Controller: a. Addresses and locations of houses doorknocked and/or evacuated. b. The number of occupants and animals.

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c. Details of support required (such as transport, medical evacuation, assistance to secure house and/or property and raise or move belongings). d. Details of residents who refuse to comply with the Evacuation Order. 3.18.19 Refusal to evacuate. Field teams cannot afford to waste time dealing with people who are reluctant or refuse to comply with any Evacuation Order. These cases are to be referred to the NSW Police Force.

Withdrawal 3.18.20 Evacuations will generally be carried out in stages starting from the lowest areas, low flood islands and low trapped perimeters; and progressively from higher areas. 3.18.21 The most desirable method of evacuation is via road using private transport. This may be supplemented by buses for car-less people. However, other means of evacuation may also be used if available and as necessary (e.g. by foot, rail, air). 3.18.22 Evacuees who require emergency accommodation or disaster welfare assistance will be directed to designated evacuation centres. Evacuees who have made their own accommodation arrangements will not be directed to evacuation centres. It is not possible to determine in advance how many will fall into this category. 3.18.23 Evacuees will: a. Move under local traffic arrangements from the relevant Sectors/Community b. Continue along the suburban/regional/rural road network to allocated Evacuation Centres. 3.18.24 Health Services. The Health Services Functional Area will coordinate the evacuation of hospitals, health centres and aged care facilities (including nursing homes). 3.18.25 Schools. School administration offices (Department of Education and Communities, Catholic Education Office and Private Schools) will coordinate the evacuation of schools if not already closed. 3.18.26 If there is sufficient time between the start of response operations and the evacuation of communities, the NSW SES Illawarra South Coast Region Incident Controller will discuss the temporary closure of appropriate schools with the Regional Director, South East Region, Department of Education and Communities. This will enable pupils to stay at home or be returned home so they can be evacuated (if required) with their families. 3.18.27 Note that in the Bega Valley Shire Council LGA, school principals may close some schools affected by flooding in the early stages of flooding. 3.18.28 Caravan parks. When an evacuation order is given occupiers of non-movable vans should:

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a. Secure their vans by tying them down to prevent flotation. b. Isolate power to their vans. c. Collect personal papers, medicines, a change of clothing, toiletries and bedclothes. d. Lift the other contents of their vans as high as possible within the van. e. Move to a designated evacuation centre if they have their own transport, or move to the caravan office to await transport. 3.18.29 Where possible, vans that can be moved will be relocated by their owners. Park managers will arrange for the relocation of mobile vans whose owners do not have a vehicle. Council and NSW SES personnel will assist if required and may be able to provide additional vehicles. 3.18.30 Caravan park managers will ensure that their caravan park is capable of being evacuated within the allocated time contained within their Flood Emergency Plan. 3.18.31 Advise the NSW SES Bega Valley Local Controller of: a. The number of people requiring transport. b. Details of any medical evacuations required. c. Whether additional assistance is required to effect the evacuation. 3.18.32 Check that no people remain in non-removable vans that are likely to be inundated. 3.18.33 Inform the NSW SES Bega Valley Local Controller when the evacuation of the caravan park has been completed. 3.18.34 Provide the NSW SES Bega Valley Local Controller with a register of people that have been evacuated. 3.18.35 Assistance Animals, Pets and Companion Animals of Evacuees: Assistance animals (guide dogs, hearing assistance animals, etc.) will remain in the care of their owners throughout the evacuation. This includes transport and access into evacuation centres etc. Due to safety restrictions, it may not be possible to allow companion animals to accompany their owners when being transported via aircraft or flood rescue boats. Agriculture and Animal Services will make separate arrangements for the evacuation and care of companion animals. 3.18.36 Transport and storage: Transport and storage of furniture from flood and/or coastal erosion threatened properties will be arranged as time and resources permit. 3.18.37 Security: The NSW Police Force will coordinate the provision of security for evacuated areas. 3.18.38 The NSW SES Local Incident Controller is to provide the following reports to the NSW SES Illawarra South Coast Region Headquarters: a. Advice of commencement of any evacuations;

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b. Progress reports during evacuations; and c. Advice of completion of the evacuation of each Sector.

Shelter 3.18.39 Evacuation centres / assembly areas. The usual purpose of assembly areas is to meet the immediate needs of disaster affected people following evacuation from an emergency situation, not to provide them with accommodation. Evacuees will be advised to go to or be taken to the nearest accessible evacuation centre, which may initially be established at the direction of the NSW SES Bega Valley Local Incident Controller, but managed as soon as possible by Welfare Services. 3.18.40 The following locations are suitable for use as flood evacuation centres: a. Bega: Bega Town Hall. b. Bega: Bega Showground c. Bega North: Bega Co-operative Dairy Company. d. Bemboka: Bemboka Memorial Hall. e. Candelo: Candelo Hall. f. Merimbula: Twyford Hall. g. Rocky Hall: Rocky Hall Public Hall 3.18.41 Registration: The NSW Police Force will ensure that evacuees are registered on arrival at the designated evacuation centres. 3.18.42 Animal shelter compounds: Animal shelter compounds will be set up for the domestic pets and companion animals of evacuees if required. Facilities will be managed by Agriculture and Animal Services.

Return 3.18.43 The NSW SES Local Incident Controller will advise when return to evacuated areas is safe after flood waters have receded and reliable access is available. 3.18.44 The NSW SES Local Incident Controller will determine when it is safe for evacuees to return to their homes in consultation with: a. The Recovery Coordinating Committee (if established), b. Welfare Services Functional Area Coordinator (welfare of evacuees), c. Engineering Services Functional Area Co-coordinator (electrical safety of buildings, integrity of bridges, roads, dams and other structures), d. Health Service Functional Area Coordinator (public health), e. Transport Services Functional Areas Coordinator (arrangement of transport), f. Energy and Utility Functional Area g. The Bega Valley Shire Council LEOCON,

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h. The Bega Valley Shire Council, i. NSW SES Region Incident Controller, j. Other appropriate agencies/functional areas as required (mitigation and advice regarding identified risks resulting from the flood and/or coastal erosion event). 3.18.45 Once it is considered safe to do so, the NSW SES Incident Controller will authorise the return of evacuees. 3.18.46 The return will be controlled by the NSW SES Local Incident Controller and may be conducted, at their request, by the Recovery Coordinator.

3.19 MANAGING RESUPPLY OPERATIONS

3.19.1 The NSW SES is responsible for the coordination of the resupply of isolated communities and properties. 3.19.2 If isolation is expected to occur, residents should be encouraged to consider their needs and suitability for an unknown period of isolation. 3.19.3 If properties/communities are going to remain in locations expected to become isolated, households/retailers should be encouraged to stock up on essential supplies. 3.19.4 Where practicable, once supplies are delivered to the NSW SES designated loading point, the NSW SES Local Incident Controller will arrange for the delivery of essential foodstuffs, fuels or urgent medical supplies required by an isolated property or community. 3.19.5 All reasonable attempts will be made to deliver supplies, however where necessary the NSW SES will prioritise the delivery of items.

Resupply of Isolated Towns and Villages Strategy 3.19.6 Minimise disruption upon the community by resupplying towns and villages which have become isolated as a consequence of flooding. Actions 3.19.7 The NSW SES is responsible for the coordination of the resupply of isolated communities. 3.19.8 If flood predictions indicate that areas are likely to become isolated, the NSW SES Local Incident Controller should advise retailers that they should stock up. 3.19.9 When isolation occurs, retailers will be expected to place orders with suppliers where they have a line of credit and to instruct those suppliers to package their goods and deliver them to loading points designated by the NSW SES. 3.19.10 The NSW SES is prepared to deliver mail to isolated communities but may not be able to do so according to normal Australia Post timetables.

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3.19.11 The NSW SES will assist hospitals with resupply of linen and other consumables where able.

Resupply of Isolated Properties Strategy 3.19.12 Ensure supplies are maintained to properties by coordinating the resupply of properties which have become isolated as a consequence of flooding. Actions 3.19.13 The resupply of isolated properties is a common requirement during floods and coordination can be difficult because requests can emanate from a variety of sources. Isolated properties may call their suppliers direct, place their orders through their own social networks or contact the NSW SES. 3.19.14 The principles to be applied when planning for the resupply of isolated properties are: a. The NSW SES will coordinate resupply and establish a schedule. b. Some isolated households will not have the ability to purchase essential grocery items due to financial hardship. If an isolated household seeks resupply from the NSW SES and claims to be, or is considered to be, in dire circumstances, he/she is to be referred to Welfare Services for assessment of eligibility. Where financial eligibility criteria are met, Welfare Services will assist with the purchase of essential grocery items. Welfare Services will deliver the essential grocery items to the NSW SES designated loading point for transport. c. Local suppliers will liaise with the NSW SES regarding delivery of resupply items to the designated loading point. d. Local suppliers are responsible for packaging resupply items for delivery. 3.19.15 A flowchart illustrating the Resupply process is shown in Attachment 1. Please note that the flowchart outlines the resupply process but does not encompass all potential situations and/or outcomes.

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PART 4 - RECOVERY

4.1 RECOVERY COORDINATION AT THE LOCAL LEVEL

4.1.1 The NSW SES Bega Valley Local Controller will ensure that planning for long- term recovery operations begins at the earliest opportunity, initially through briefing the Local Emergency Management Committee (LEMC). As soon as possible the LEMC will meet to discuss recovery implications including the need for a Local Recovery Committee. The LEMC will consider any impact assessment in determining the need for recovery arrangements. This is conveyed in the first instance to the State Emergency Operations Controller (SEOCON) for confirmation with the State Emergency Recovery Controller (SERCON). 4.1.2 Once the need for recovery has been identified, the SERCON, in consultation with the SEOCON, may recommend the appointment of a Local Recovery Coordinator and nominate an appropriate candidate to the Minister for Police and Emergency Services. 4.1.3 The SERCON may send a representative to the LEMC and subsequent recovery meetings to provide expert recovery advice and guidance. 4.1.4 The NSW SES Bega Valley Local Controller and Local Emergency Operations Controller (LEOCON) attend recovery meetings to provide an overview of the emergency response operation. 4.1.5 The NSW SES Region Incident Controller, the Regional Emergency Management Officer and appropriate Regional Functional Area Coordinators will be invited to the initial local meeting and to subsequent meetings as required. 4.1.6 The recovery committee will: a. Develop and maintain a Recovery Action Plan with an agreed exit strategy. b. Monitor and coordinate the activities of agencies with responsibility for the delivery of services during recovery. c. Ensure that relevant stakeholders, especially the communities affected, are involved in the development and implementation of recovery objectives and strategies and are informed of progress made. d. Provide the SERCON with an end of recovery report. e. Ensure the recovery is in line with the National Principles of Disaster Recovery and the NSW tenets.

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4.2 RECOVERY COORDINATION AT THE REGION AND STATE LEVEL

4.2.1 In the event that an emergency affects several local areas, a Regional Emergency Management Committee (REMC) will meet to discuss recovery implications including the need for a Region Recovery Committee. This is conveyed in the first instance to the SEOCON for confirmation with the SERCON. 4.2.2 In the event of an emergency which affects multiple Regions, or is of state or national consequence, or where complex, long term recovery and reconstruction is required, it may be necessary to establish a State Recovery Committee and the appointment of a State Recovery Coordinator.

4.3 ARRANGEMENTS FOR DEBRIEFS / AFTER ACTION REVIEWS

4.3.1 As soon as possible after flooding has abated, the NSW SES Bega Valley Local Controller will advise participating organisations of details of response operation after action review arrangements. 4.3.2 The NSW SES Bega Valley Local Controller will ensure that adequate arrangements are in place to record details of the after action review and each item requiring further action is delegated to an organisation or individual to implement. 4.3.3 Follow-up to ensure the satisfactory completion of these actions will be undertaken by the Bega Valley Shire Council Local Emergency Management Committee.

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ATTACHMENT 1 - RESUPPLY FLOWCHART

Please Note: The chart outlines the resupply process, but does not encompass all potential situations and outcomes.

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ATTACHMENT 2 - DAM FAILURE ALERT NOTIFICATION ARRANGEMENTS FLOWCHART

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ATTACHMENT 3 - BEGA VALLEY SHIRE COUNCIL LGA MAP

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HAZARD AND RISK IN BEGA VALLEY SHIRE

Volume 2 of the Bega Valley Shire Local Flood Plan

Last Update: January 2017

Bega Valley Shire Local Flood Plan

AUTHORISATION

Hazard and Risk in Bega Valley has been prepared by the NSW State Emergency Service (NSW SES) as part of a comprehensive planning process. The information contained herein has been compiled from the latest available technical studies.

8th November 2017

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CONTENTS

HAZARD AND RISK IN BEGA VALLEY SHIRE ...... 1

AUTHORISATION ...... 1

CONTENTS ...... 2

LIST OF TABLES ...... 4

VERSION LIST ...... 5

AMENDMENT LIST ...... 5

1 THE FLOOD THREAT ...... 6 Overview of Bega Valley Shire ...... 6 Landforms and River Systems ...... 6 THE BEGA RIVER BASIN ...... 6 THE TOWAMBA RIVER BASIN ...... 8 TUROSS RIVER BASIN ...... 9 Storage Dams ...... 9 Weather Systems and Flooding ...... 12 Characteristics of Flooding ...... 12 COASTAL THREATS ...... 13 Flood History ...... 13 Flood Mitigation Systems ...... 17 Extreme Flooding ...... 17

2 EFFECTS ON THE COMMUNITY ...... 18 Community Profile ...... 18 SPECIFIC RISK AREAS - FLOOD ...... 22 Bega ...... 22 Tarraganda and Angledale ...... 27 Candelo ...... 29 Tathra and Mogareeka ...... 31 Bermagui / Wallaga Lake / Cuttagee / Murrah ...... 33 Buckajo and Springvale ...... 36 Jellat Jellat, Kalaru and Wallagoot ...... 37 Bemboka ...... 39 Merimbula ...... 41 Eden ...... 45 Boydtown ...... 47

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Towamba ...... 49 ROAD CLOSURES AND ISOLATED COMMUNITIES ...... 50 Road Closures ...... 50 Summary of Isloated Communities and Properties ...... 53

ANNEX 1: BEGA RIVER BASIN SCHEMATIC ...... 56

ANNEX 2: FACILITIES AT RISK OF FLOODING AND/OR ISOLATION ...... 57

MAP 1 - BEGA RIVER BASIN ...... 59

MAP 2 - TOWAMBA RIVER BASIN ...... 60

MAP 3 - TUROSS RIVER BASIN ...... 61

MAP 4 - BEGA TOWN MAP ...... 62

MAP 5 - TARRAGANDA TOWN MAP ...... 63

MAP 6 - ANGLEDALE TOWN MAP ...... 64

MAP 7 - CANDELO TOWN MAP ...... 65

MAP 8 - TATHRA AND MOGAREEKA TOWN MAP ...... 66

MAP 9 - BERMAGUI TOWN MAP ...... 67

MAP 10 - WALLAGA LAKE ...... 68

MAP 11 - BUCKAJO TOWN MAP ...... 69

MAP 12 - SPRINGVALE TOWN MAP ...... 70

MAP 13 - JELLAT JELLAT TOWN MAP ...... 71

MAP 14 - KALARU TOWN MAP ...... 72

MAP 15 - WALLAGOOT TOWN MAP ...... 73

MAP 16 - BEMBOKA TOWN MAP ...... 74

MAP 17 - MERIMBULA TOWN MAP...... 75

MAP 18 - EDEN TOWN MAP ...... 76

MAP 19 - BOYDTOWN MAP ...... 77

MAP 20 - TOWAMBA TOWN MAP ...... 78

LIST OF REFERENCES ...... 79

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LIST OF TABLES

Table 1: Prescribed Dams in Bega Valley LGA; summary of information about each storage...... 10 Table 2: Indicative Flow Travel Time for the Bemboka/Bega River (9) ...... 13 Table 3: Indicative Flow Travel Time for the Brogo River (9) ...... 13 Table 4: Indicative Flow Travel Time for the Tantawangalo Creek (9) ...... 13 Table 5: Estimated design flood heights related to the Bega North (219990) Gauge (1) ...... 15 Table 6: Flood History for floods above moderate level at the Bega North gauge (219900) ...... 16 Table 7: Census of Housing and Population data (2011) (19) ...... 18 Table 8: Estimated number of properties inundated above floor level in Bega related to the Bega North (219990) Gauge (8) ...... 24 Table 9: Estimated number of properties flooded in design events by catchment overflow ...... 42 Table 10: Roads liable to flooding in Bega Valley LGA...... 50 Table 11: Potential Periods of Isolation for communities in the Bega Valley LGA during flooding events ...... 54

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VERSION LIST

The following table lists all previously approved versions of this Volume.

Description Date

Bega Valley Shire Local Flood Plan Annex A and B May 2007

AMENDMENT LIST

Suggestions for amendments to this Volume should be forwarded to:

Illawarra South Coast Region NSW State Emergency Service PO Box 1460, WOLLONGONG NSW 2500 Amendments promulgated in the amendments list below have been entered in this Volume.

Amendment Description Updated by Date Number

Document Issue: Version 3-02052016

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1 THE FLOOD THREAT

OVERVIEW OF BEGA VALLEY SHIRE

1.1.1 The Bega Valley Shire is located approximately 400km south of Sydney, 600km north east of Melbourne and 230km south east of Canberra. Major Highways located within the Shire include the Princes Highway, the Snowy Mountains Highway/Tathra Road and the Monaro Highway. The Bega Valley Shire has the longest coastline of any local government area within NSW (1). The Bega Valley Local Government Area is shown on Maps 1, 2 and 3. 1.1.2 The major business centre of the region is Bega. Major towns in the Shire are Bermagui, Eden, Merimbula and Pambula. Other smaller towns include Pambula Beach, Tathra, Tura Beach, Cobargo, Candelo, Wolumla, Bemboka, Kalaru and Towamba (1). 1.1.3 The Bega Valley Council area has a high density of creeks and rivers in addition to numerous coastal lakes, estuaries, lagoons and inlets. Flooding can occur on all these watercourses, but in general the serious consequences of flooding are confined to the valley of the lower Bega River. Flooding can also occur at and around the townships including Merimbula, Pambula, Eden and Towamba. On rare occasions, storm tides can also cause flooding along the coast itself. Flooding on other rivers and creeks within the council area occurs similarly to the Bega and Brogo Rivers however with shorter warning times (2). 1.1.4 Large parts of the Bega Valley Council area, especially in the west and south, are virtually unpopulated and largely undeveloped. The main impacts of flooding in these areas is isolations of small towns and properties due to road, bridge and causeway closures. Significant disruption to transport networks is experienced during periods of flooding (2).

LANDFORMS AND RIVER SYSTEMS

THE BEGA RIVER BASIN 1.2.1 The Bega River Basin is shown on Map 1. The basin incorporates multiple river catchments and coastal lakes described below. The Bega & Brogo River Catchments 1.2.2 The river systems associated with the Bega and Brogo River Catchments converge at the township of Bega (Map 1). In its upper reaches the Bega River is known as the Bemboka River. The entire system drains an area of 1940 km2, of which 1800 km2 are upstream of the township of Bega (2). 1.2.3 The headwaters of the river catchments are in the rugged bushland country of the Kybean Range, about 60 kilometres from the coast. The western most tributaries (Yankees Creek on the Brogo River and Georges, Rutherford and Bonar Creeks and Nunnock River on the Bemboka) are in deeply dissected

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upland country of over 1000 metres elevation. The country is steep and flow velocities are high (2). 1.2.4 In the higher parts of the catchments are two dams, Brogo Dam (about 15 kilometres upstream of the locality of Brogo) and the smaller Cochrane Dam on a tributary of the Bemboka River. In addition there are several weirs on the upper Bemboka and its tributaries. None of these devices provide significant flood mitigation capacity (2). 1.2.5 Below the dams, the rivers are contained within well-defined watercourses for several kilometres with little overbank storage. The main tributaries in these sections are the House and Double creeks, which feed the Brogo River, and the Sandy, Tantawangalo, Candelo and Wolumla creeks which enter the Bemboka. Downstream of its confluence with Sandy Creek, the Bemboka is known as the Bega River (2). 1.2.6 From around the confluences of the Double and Tantawangalo creeks respectively, the Brogo and Bega rivers assume a sand and shingle bed morphology. The main channels contain relatively low flows, their banks being slightly leveed and allowing containment of minor freshes, but in periods of higher flows the flood waters break out and create active anabranches along the valley edges. Broad flood plains have developed on these stretches of both rivers (2). 1.2.7 The Brogo joins the Bega River at Bega itself, 24 kilometres above the ocean outlet, and the floodplain immediately widens considerably. This area, (Tarraganda) and the Jellat Jellat Flats further downstream act as large off- river storage areas. Downstream of the Jellat Jellat Flats, the river enters Bottleneck Reach which is both the tidal limit and a natural constriction formed by hills to the north and south (2). 1.2.8 The river enters the sea at Mogareeka Inlet, 11 kilometres below Bottleneck Reach (2). The Bermagui River Catchment 1.2.9 The Bermagui River is fed by Nutleys, Myrtle and Coolagolite Creeks. The system drains a catchment of 90km2 and extends inland less than 15km. In its lower reaches the Bermagui River meanders within a floodplain of up to 1.5km in width before reaching the sea at Bermagui (2). Minor Watercourses 1.2.10 Other watercourses draining the Bega River Basin are the Murrah River and Wapengo Creek (which fall between the Bermagui and Brogo catchments) (2). 1.2.11 The distribution of rainfall over their catchments is similar to that over the Bega and Brogo catchments, with high rainfall in the more elevated inland areas and rainshadows having developed in sheltered areas. Flood seasonality is also similar to that on the Bega and Brogo rivers (2).

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Coastal Lakes 1.2.12 Flooding can also occur on the various lakes and embayment’s along the coast (Wallaga, Barragoot, Cuttagee, Murrah, Wapengo and Wallagoot Lakes), especially if their openings to the sea become restricted by the build-up of sand (2). THE TOWAMBA RIVER BASIN 1.2.13 The Towamba Basin is shown on Map 2. It contains multiple river catchments and coastal lakes described below. The Pambula River Catchment 1.2.14 The Pambula River rises in the rugged Gnupa State Forest east of Wyndham and flows into Pambula Lake where it is joined by the Yowaka River. The main tributaries in the upper and middle reaches are Crawleys, Seven Mile, Chalkhills, Burton and Back creeks. Most of the catchment is hilly or mountainous and the only areas of floodplain are in the vicinity of Pambula itself (2). The Towamba River Catchment 1.2.15 The Towamba River’s headwaters rise about 15 kilometres east of Bombala at elevations near 1000 metres. The Towamba River is fed by the Stockyard, Basin, New Station and Scotcheys creeks and the Mataganah and Wog Wog rivers. Some alluvial flats occur between Towamba and the tidal limit at Kiah, but the bulk of the catchment is rugged and mountainous (2). Minor watercourses 1.2.16 Other watercourses draining the Towamba River Basin are the Wonboyn, Merrica and Nadgee Rivers (which drain the hilly coastal country south of the catchment of the Towamba River), and the Wallagaraugh River which flows in a south-easterly and southerly direction to join the Genoa River in Victoria (2). 1.2.17 Little information exists on flooding on these rivers and creeks. It is known, however, that the distribution of rainfall over their catchments is similar to that over the Bega and Brogo catchments, with high rainfall in the more elevated inland areas and rainshadows having developed in sheltered areas. Flood seasonality is also similar to that on the Bega and Brogo rivers (2). Merimbula and Back Lake Catchments 1.2.18 Merimbula and Back Lake have the tributaries Millingandi, Boggy, Bald Hills and Merimbula Creeks. Flooding can occur at these sites and can be influenced by the restrictions and blockages at the ocean entrances due to the build-up of sand. Elevated water levels can also occur as a result of ocean storm surges (3).

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Other Coastal Lakes 1.2.19 Flooding can also occur on the various lakes and embayment’s along the coast (Curalo and Pambula lakes), especially if their openings to the sea become restricted by the build-up of sand. Pambula Lake is known locally as Broadwater (2). TUROSS RIVER BASIN 1.2.20 The upper reaches of the Tuross River Basin extend from the Eurobodalla Shire LGA into the north western corner of the Bega Valley LGA (Map 3). The area is unpopulated and located within the Bodalla and Wandella State Forests. 1.2.21 The Yowrie and Wadbilliga rivers, which drain the north-western portion of the council area, flow northwards to join the Tuross River in the Eurobodalla LGA (2).

STORAGE DAMS

1.3.1 There are four prescribed dams within the Bega LGA that pose some risk to downstream populations should they fail. These include: a. Ben Boyd Dam b. Brogo Dam c. Cochrane Dam and d. Yellow Pinch Dam. 1.3.2 These dams are further described in the tables below. Dam locations are shown on Maps 1-3.

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Table 1: Prescribed Dams in Bega Valley LGA; summary of information about each storage.

Ben Boyd (4)

Owner / Bega Valley Shire Council Operator Description of Height = 29m, crest length = 225m and crest width = 8m. Capacity = Dam 800ML, unlined open channel spillway with capacity 25m3/sec. Location Located approx. 8km south-west of Eden. Part of the Towamba River Basin Communities Boydtown, Nullica Bay Downstream

Monitoring Hydraulic piezometers (Monthly), Electric Piezometers (Monthly), System Seepage Weirs (Weekly), Groundwater observation holes (Monthly), Storage level (weekly) , Rain gauge (Weekly) Warning No warning system identified System

Other The consequences of dam failure are - flooding of the Princes Hwy North and South of Boyd Town; Two properties flooded immediately downstream from the dam (but not the residences). Two Caravan Parks could potentially be isolated due to flooding of the Princes Highway. Further houses in new development areas in Boydtown are potentially at risk during dam failure.

Brogo Dam (5)

Owner / State Water Corporation Operator Description of Concrete lined dam with compacted rock fill, approx. 43 metres high Dam and 260m long at crest level. Storage capacity at FSL=8,980ML, ungated spillway is an uncontrolled, unlined open rock cut.

Location Situated on Brogo River in Bega Valley 28km upstream from its junction with the Bega River Basin.

Communities Brogo, Bega Downstream Monitoring Seepage monitoring (Daily), Deformation survey (Yearly), Visual System Inspection (Daily/Weekly), Chemical Analysis (Yearly)

Warning No warning systems noted. State Water does have an Early Warning System Network for notifying self-enrolled downstream landholders and other interested parties. Other Dambreak resulting from extreme rainfall would be preceded by flooding many times more destructive than from a flood equivalent to the 1971 flood of record in the Bega Valley, and consequently vast areas downstream of Brogo Dam would already have been evacuated.

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Cochrane Dam (6)

Owner / Eraring Energy Operator Description of Earth and Rock fill with concrete core wall. Storage capacity at FSL: Dam 4,750ML Location Located approx. 16.5km East-south-east of Nimmitabel. Located in Bega River Basin Communities 7 buildings downstream. Impact on low lying areas in town of Downstream Bemboka and Bega - depth not likely to be significant. Monitoring Routine Visual Inspection carried out 2 times/week by inspection System staff. Routine Inspection and monitoring carried out at four-monthly intervals, Intermediate Inspection (annually), Special Inspection, Emergency Inspection, and Audit Inspections. Warning A radio telemetry flood warning system is installed to provide System advanced warning of severe flooding at the dam. Other Potential for the inundation of the Brown Mountain Power Station resulting in loss of operational functionality; The structural integrity of the bridge on the Snowy Mountains Highway over the Bemboka River may be compromised and ongoing monitoring must occur; Inundation of 7 buildings downstream; Inundation of all low lying areas along the Bemboka and Bega Rivers including picnic/camping areas, Bemboka sports ground, Bega Racecourse and sewerage treatment plant.

Yellow Pinch Dam (7)

Owner / Bega Valley Shire Council Operator Description of Storage capacity is 3000ML. Max height 40m, crest length 200m, crest Dam width 7m complete with intake tower, outlet works and spillway

Location Located 2km south of Wolumla, 10km north west of Merimbula and 30km south of Bega part of the Bega River Basin

Communities Merimbula caravan park Downstream Monitoring Hydraulic Piezometers (monthly), Electric Piezometers (monthly), System Seepage weirs (weekly), Groundwater observation holes (6 monthly), Crest and surface settlement points (6 monthly), Storage level and rain gauge (weekly)

Warning No warning system identified System Other Bridges crossing the Princes Highway south of Wolumla will be under water up to 5m deep; Reid Street bridge will be underwater by approx 1m; the caravan park near Reid Street Bridge will be inundated. Up to 30 residences are at risk during a PMF dam failure. Short warning times of only 30 minutes for Sunny Day dam break and 40 minutes for PMF dam break.

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WEATHER SYSTEMS AND FLOODING

1.4.1 Precipitation generally increases with land elevation as a result of orographic influences. Average annual rainfall varies from about 625mm in rainshadow areas to about 1250mm in the higher headwaters areas of the Kybean Range (2). 1.4.2 Rainfall is distributed fairly evenly across the seasons, though the summer months are slightly wetter than the winter ones. The high country to the west of the council area shelters the far south coast of NSW from the moist south- westerly airstreams which are the predominant rain-producing systems over the southern inland of the state during the winter months (2). 1.4.3 Most flood-producing rains are the result of incursions of moist tropical air masses or occasional cold fronts, or of very heavy storm rainfalls generated by active depressions centred off the coast. Storms resulting from off-coast depressions have occurred about twice per year on average and can produce 24-hour falls of more than 500mm. The most severe such storms result from weather configurations in which a high-pressure system located over Victoria or Tasmania is combined with a deep, slow-moving low-pressure cell over the south coast of NSW. A vigorous on-shore flow of moist, warm air occurs under these circumstances and very heavy rains fall on the coast and over the range country. The magnitude of the resulting discharges depends on the level of antecedent moisture as well as on the distribution, duration and volume of the rainfall (2). 1.4.4 Rainfall intensities for the Bega and Brogo Rivers Catchment show that over a 12 hour period 8.08mm per hour equates to a 2 year ARI event and 18.8mm per hour equates to a 50 year ARI event. The critical duration of a storm over the Bega and Brogo River Catchment for modelled events between the 10% AEP and 1% AEP event is between 36 and 48 hours (1). 1.4.5 Flooding in the Bega Valley is most likely to occur between Februarys to June, although flooding can occur at any time of year. The majority of the floods recorded have occurred in these months, however some Major and Moderate floods have also occurred during December and January. Minor floods have occurred during all months of the year with the exception of September.

CHARACTERISTICS OF FLOODING

1.5.1 Flooding in the Bega/Brogo Rivers catchment is a combination of riverine flooding and overland flooding. During a flooding event the Jellat Jellat Flats and Tarraganda acts as large flood storage areas (1). These area starts to fill with water when the Bega North (also known as the North Bye) gauge (219900) at Bega reaches 1.28m. This is well below the minor flood level of 4.6m. 1.5.2 The Bega and Brogo Rivers act as floodways during all events ranging from minor flooding to the PMF event. During the 1% AEP and PMF events the areas surrounding the Princes Highway Bridge over the Bega River also act as

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a floodway. Flooding that inundates properties within the catchment is generally fringe flooding (8) (1). 1.5.3 Indicative flow travel times between key water level gauges are shown within Tables 2 to 4. A schematic diagram representing these gauges and travel times within the Bega River Basin is also provided in Annex 1. Table 2: Indicative Flow Travel Time for the Bemboka/Bega River (9)

Locations Travel Time

Morans Crossing (219003) to Bega North (219900) 6-9 hours Table 3: Indicative Flow Travel Time for the Brogo River (9)

Locations Travel Time

Brogo Dam Site (219024) to North Brogo (219013) 2 hours North Brogo (219900) to Angledale (219025) 3-4 hours Table 4: Indicative Flow Travel Time for the Tantawangalo Creek (9)

Locations Travel Time

Candelo Dam site (219022) to Bega River Junction 4 hours 1.5.4 The Merimbula Flood Study is currently being finalised and is expected to be completed later in 2016 (10).

COASTAL THREATS 1.5.5 Elevated ocean levels caused by unusually high tides or by strong winds, wave run-up or low barometric pressures can also be experienced leading to inundation of low-lying areas. 1.5.6 Assessment of the dune height along the Bega Valley Shire beaches has identified that direct oceanic inundation of hind dune areas as a result of elevated water levels is unlikely. However, during storm tide events, elevated ocean levels as a result of storm tide, surge and wave set-up can potentially inundate lower estuary areas (11).

FLOOD HISTORY

Bega

1.6.1 Floods have been recorded on the Bega-Brogo river system since European settlement began during the early 1840’s. Floods in 1851 and 1852 proved disastrous to the early town which was located at the confluence of the two rivers, and Bega was moved to its present site on the higher ground to the south of the junction. Later floods in 1870, 1873 and 1898 caused great damage to crops, bridges, culverts, roads and fences and substantial stock losses were incurred (2).

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1.6.2 Severe flooding was not common between 1900 and 1950, though serious events occurred in 1919 and 1934. These were the fifth and sixth highest floods recorded at the Bega North gauge (also known as North Bye gauge) (219900). Repeated flooding, mostly within the minor flood range, has been experienced since 1950, with more severe floods in June 1952, May 1963, February 1971, March 1975, June 1978 and March 2011. In some cases, notably in 1952, flood impacts were unusually severe because of a sequence of flood events in quick succession, later floods occurring before the drainage of earlier ones had been completed (2). 1.6.3 The most severe flood ever recorded at Bega (and in fact on most reaches of the Brogo and Bega rivers) was in 1971 when up to 900mm of rain fell over both catchments in a 15-day period with falls of over 600mm at locations such as Bemboka and Upper Brogo in two days (6th and 7th of February, 1971). The flood was nearly a metre higher at Bega than any other flood recorded in the 20th century, and it caused considerable sand and vegetation movement and deposition in addition to road closures, bridge and culvert damage and agricultural losses. Several evacuations were necessary (2). 1.6.4 At the Bega North Gauge (219990), Bega the minor flood height has been reached 50 times in 35 years. While some years have had separate flood events within a short space of time, flood-free periods of up to 12 years duration have also been experienced. The major flood height (8.0 metres) has been reached or exceeded on ten occasions since 1841, the latest occurring in 2011 (12) (1). 1.6.5 Significant flooding has occurred in Bega more recently with events being recorded in 2010, 2011, 2012 and 2016. The March 2011 event was described as being the worst in 40 years. This event caused widespread damage to infrastructure and properties around and downstream of Bega and was caused by heavy localised rainfall coinciding with higher than normal tide levels (12). During this event 19 residential and commercial properties were impacted. Floodwaters rose relatively quickly in these areas (within minutes to hours) and lasted over a day on most properties, with some areas remaining inundated for weeks. A number of bridges and causeways were lost in rural areas. The damage for the 2010 event was estimated at $6 million and the 2011 event was estimated at $10 million (1) (12). Merimbula

1.6.6 In September 2014 flash flooding caused up to 100mm of water to pass through Market Street in Merimbula and resulted in the damage of residential and commercial properties (14). Bermagui

1.6.7 In March 2012 85mm of rain fell in Bermagui in 3 hours and resulted in flooding in the town including the supermarket, golf course, Caravan Park and Beach Hotel (13).

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1.6.8 In October of 2014, 225mm of rain fell over Bermagui in less than 12 hours resulting in the flooding and closure of Bermagui Public School along with road closures and the flooding of premises affected in the March 2012 event (15). Eden

1.6.9 In January 2016 100 to 150mm of rain fell near Eden within a 2hr period at a maximum hourly rate of 180mm/hour (20). This resulted in minor flooding causing the closure of roads and bridges around Bega, Merimbula and Eden and resulted in flooding of low lying areas (16). The BUPA Aged Care Facility in Eden was flooded.

Historical Floods and their probability

1.6.10 The assessed heights at the Bega North gauge (219990) for floods of particular probabilities and average recurrence intervals are provided in 1.6.11 Table 5.

Table 5: Estimated design flood heights related to the Bega North (219990) Gauge (1)

Gauge Height Flood Probability Estimated Average (meters) (AEP %) Recurrence Interval (ARI) (years)

17.13 PMF 10.16 0.2% 500 9.79 1% 100 9.29 2% 50 8.78 5% 20 8.26 10% 10

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Table 6: Flood History for floods above moderate level at the Bega North gauge (219900)

Gauge Classification Height Month Year Min: 4.6m Mod: (metres) 7m and Maj: 8m

6 February 1971 9.78 Major

20 May (17) 1851 9.75 Major

1 May 1870 9.1 Major

14 February (17) 1898 8.9 Major

7 January 1934 8.79 Major

28 February 1873 8.68 Major

27 February 1919 8.69 Major

22 March (1) 2011 8.47 Major

7 March (18) 1893 8.3 Major

19 May 1963 8.1 Major

March 1975 7.4 Moderate

February (1) 1992 7.4 Moderate

March (18) 1875 7.3 Moderate

March 1914 7.3 Moderate

June 1928 7.3 Moderate

June 1978 7.3 Moderate

June 2016 7.3 Moderate

June 1952 7.2 Moderate

June (1) 1978 “high” Unknown

December 1992 7.15 Moderate

July (1) 1988 7.00 Moderate

February (1) 2010 6.84 Minor

March (1) 1973 6.80 Minor

March (1) 1997 6.79 Minor

April (1) 1990 6.70 Minor

June (1) 1991 6.70 Minor

March (1) 2012 6.58 Minor

March (1) 1983 6.50 Minor

October (1) 1985 6.50 Minor

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1.6.12 Table 6 notes the heights of the most severe as well as some of the most recent minor floods recorded at North Bega. For most of the floods of the 19th century the height information should be regarded as being approximate only.

FLOOD MITIGATION SYSTEMS

1.7.1 There are no levees located within the Bega LGA. 1.7.2 Works have been completed in the Bega LGA around the Princes Highway Bridge crossing the Bega River. This work included the raising of the Highway and some local roads affected by flooding (1). 1.7.3 A small weir is located on Russell Creek in the Jellat Jellat Flats. The weir is approximately 2 metres wide and was installed to prevent the migration of tidal salt water up the creek in Jellat Jellat Flats. This weir is not a flood mitigation system and has no impact on flooding (1).

EXTREME FLOODING

1.8.1 1971 Flood (9.87m): The highest flood event experienced in the Bega Valley occurred in 1971. The Bega River peaked at 9.87m at the Bega North (219990) Gauge. The 1971 event broke the 1% AEP (1 in 100 year ARI) event and was estimated to be a 140 ARI event. Some 23 residences were flooded within the town along with 13 commercial-industrial properties (one to a depth of about two metres) and the ambulance station (2). 1.8.2 2011 Flood (8.47m): In March of 2011 the Bega Valley experienced significant flooding. The localities of Rocky Hall, Mogilla and Walagoot became completely isolated and Towamba had limited access. Three major Council bridges were lost and 6 were severely damaged. 150+ other bridges and roads sustained damage (8). 1.8.3 PMF Flood Event: The PMF Event is estimated to reach 17.13m at the Bega North gauge (219990). This is over 7m higher than the 1971 Flood of record (9.87m) (1).

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2 EFFECTS ON THE COMMUNITY

COMMUNITY PROFILE

Table 7: Census of Housing and Population data (2011) (19)

Census Description Bega Beauty Bega Bemboka Valley (A) Point

Total Persons 31,950 526 5,910 577 Aged 0-4 yrs 1,685 19 398 26 Aged 5-14 yrs 3,906 49 832 88 Aged 65 + yrs 6,833 180 1,107 103 Of Indigenous Origin 904 11 246 24 Who do not speak English well 50 0 6 0 Have a need for assistance 1,816 35 360 32 (profound/severe disability) Living alone (Total) 3,463 89 619 61 Living alone (Aged 65+) 1,577 49 289 26 Residing in caravans, cabins or houseboats or improvised 352 55 22 7 dwellings Occupied Private Dwellings 12,676 245 2,260 235 (Households) No Motor Vehicle 666 8 185 11 Caravan, cabin, houseboat or 205 41 13 3 improvised dwell Rented via State or Housing 345 0 142 0 Authority Rented via Housing Co-Op or 102 0 34 0 Community Church Group No Internet Connection 3,086 58 668 82 Unoccupied Private Dwellings 3,311 149 267 73 Average persons per occup 2.3 1.0 2.5 2.4 dwelling Average vehicles per occup 1.7 1.5 1.7 1.8 dwelling

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Census Description Bermagui Candelo Cobargo Eden Kiah

Total Persons 1,667 735 1,060 3,207 240 Aged 0-4 yrs 73 41 75 170 3 Aged 5-14 yrs 186 114 148 395 9 Aged 65 + yrs 461 97 179 692 44 Of Indigenous Origin 37 15 42 245 10 Who do not speak English well 13 0 9 9 0 Have a need for assistance 15 110 31 85 244 (profound/severe disability) Living alone (Total) 229 58 110 364 37 Living alone (Aged 65+) 129 23 46 184 14 Residing in caravans, cabins or 17 houseboats or improvised 7 0 6 62 dwellings Occupied Private Dwellings 225 718 263 411 1,294 (Households) No Motor Vehicle 49 0 14 128 4 Caravan, cabin, houseboat or 9 0 0 3 38 improvised dwell Rented via State or Housing 0 15 0 5 127 Authority Rented via Housing Co-Op or 0 3 0 3 18 Community Church Group No Internet Connection 177 55 94 417 30 Unoccupied Private Dwellings 460 38 92 243 100 Average persons per occup 1.9 2.2 2.5 2.4 2.2 dwelling Average vehicles per occup 1.9 1.5 1.9 1.9 1.5 dwelling

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Census Description Pambula Kalaru Merimbula Nethercote Pambula Beach

Total Persons 641 5,945 366 740 343 Aged 0-4 yrs 44 278 14 54 13 Aged 5-14 yrs 76 630 52 105 40 Aged 65 + yrs 94 1,514 37 98 86 Of Indigenous Origin 0 97 4 24 3 Who do not speak English well 0 11 0 0 0 Have a need for assistance 9 38 360 22 11 (profound/severe disability) Living alone (Total) 46 797 16 46 31 Living alone (Aged 65+) 21 385 0 16 18 Residing in caravans, cabins or 10 houseboats or improvised 29 62 15 0 dwellings Occupied Private Dwellings 124 237 2,468 260 132 (Households) No Motor Vehicle 3 182 0 0 3 Caravan, cabin, houseboat or 6 24 38 3 0 improvised dwell Rented via State or Housing 0 0 39 0 0 Authority Rented via Housing Co-Op or 0 0 36 0 0 Community Church Group No Internet Connection 26 582 24 58 21 Unoccupied Private Dwellings 23 762 34 41 125 Average persons per occup 2.7 2.6 2.1 2.6 2.3 dwelling Average vehicles per occup 2.2 2.0 1.5 2.1 1.8 dwelling

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Census Description Tura Tarraganda Tathra Towamba Wolumla Wyndham Beach

Total Persons 246 1,992 372 2,922 877 610 Aged 0-4 yrs 11 81 12 112 60 31 Aged 5-14 yrs 27 228 55 271 112 70 Aged 65 + yrs 44 410 53 1,048 116 Of Indigenous Origin 0 35 8 32 16 11 Who do not speak English 0 0 0 0 3 0 well Have a need for assistance 28 24 9 88 172 40 (profound/severe disability) Living alone (Total) 19 236 43 270 56 60 Living alone (Aged 65+) 10 103 13 170 13 18 Residing in caravans, cabins 8 4 or houseboats or 0 16 0 3 improvised dwellings Occupied Private Dwellings 140 207 90 805 1,205 323 (Households) No Motor Vehicle 0 39 0 22 7 6 Caravan, cabin, houseboat 6 6 0 7 0 3 or improvised dwell Rented via State or Housing 0 0 0 0 3 0 Authority Rented via Housing Co-Op 0 0 or Community Church 0 16 6 0 Group No Internet Connection 13 183 38 232 48 56 Unoccupied Private Dwellings 4 238 38 296 44 46 Average persons per occup 2.2 2.3 2.5 2.2 2.3 2.7 dwelling Average vehicles per occup 1.9 1.8 2.2 1.7 1.7 2.0 dwelling

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SPECIFIC RISK AREAS - FLOOD Bega River Valley

BEGA

2.2.1 Bega is located 421km south of Sydney and 225km south east of Canberra within the Bega Valley Shire (Maps 3 and 4). In the 2011 census the population of Bega was 5910 with 1107 (18%) over the age of 65. There were 2260 private dwellings and 11% of the population had no access to the internet (19).

Characteristics of flooding 2.2.2 Bega is affected by a combination of flash flooding, riverine flooding and overland flooding. Typically the Bega River system rises quickly causing flash flooding of road and creek crossings surrounding the Bega Township. Peak flood heights are generally between 24 and 48 hours from the beginning of the storm event, however in some cases this peak can be reached much earlier (2011 floods) (2) (1) (8).

Flood Behaviour 2.2.3 Minor Flooding: During a minor flooding event the Bega and Brogo Rivers and their adjacent banks act as floodways. On the western side of Bega this also will include Buckajo Road. Additionally velocities will increase at the abutments of the river crossings including the Princes Highway and Tarraganda Lane. Flooding located around the perimeter of Bega is primarily flood storage with low depths. This flooding may affect low lying roads and properties primarily in the north of Bega (1). 2.2.4 Moderate-Major Flooding: High velocity floodways occur during a moderate to major flood, generally following the path of the Bega and Brogo Rivers. These floodways also include the adjacent banks to the rivers. Increased velocities can also be seen at the bridge abutments of the Princes Highway crossing and the Tarraganda Lane crossing. The abutments can be a considerable distance from the river. The flooding areas surrounding the township of Bega are predominately a combination of high and low hazard flood storage. These areas include properties, farmland and roads (1). 2.2.5 PMF: During the PMF event modelling indicates that there are multiple locations surrounding the township of Bega that become High Hazard floodways (high depths and velocities). These areas include: Buckajo Road and the Bega River along the western side of Bega; across the north western fringe of the town through Valley Field Sports Ground; around the northern edge of the town along Poplar Street and into Apex Park; on the eastern side of the Bega and Brogo River junction and down the eastern perimeter of Bega

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including Tarraganda Lane. The Princes Highway Bridge is expected to be overtopped by 6.33m during a PMF (1). The floodway generally follows the course of the Bega River with the exception of the north western town perimeter (1). 2.2.6 The majority of the flooding that will impact residences and businesses are in flood storage areas. These locations will most likely rise slowly and have low velocities. Flood storage areas will be predominantly in farm land and fields and will surround the north, east and western sides of Bega (1).

Classification of Floodplain 2.2.7 Almost all properties in the town of Bega are classified as having Rising Road Access for events ranging from a minor flood to a PMF event. This is due to the natural topography of the area allowing flood free access to higher parts of the town. The town itself can potentially be isolated due to road closures including the Princes Highway. 2.2.8 The South East Regional Hospital can become isolated on a High flood island during a PMF event. 2.2.9 There are also rural properties located on the fringes of Bega that can become flood islands. It should be noted that there are rural farms and properties located outside the township of Bega that may become flood islands or high and low trapped perimeters. Access to these properties may be dependent on the structural integrity of local river and creek crossings, due to the high level of damage to these assets seen in past flooding events (1).

Inundation 2.2.10 The Bega and Brogo River heights are monitored by the Bureau of Meteorology at the Bega North (219990) Gauge, Bega. Flood warnings are provided by the Bureau of Meteorology (BOM). It should be noted that the catchment is largely un-gauged and many existing gauges are manual gauges (2) (1). 2.2.11 Historically houses in Bega (Bega Street and East Street) began to flood over- floor from 6.8m on the Bega gauge (Table 8). Since that time some of these properties such as the Bega Bowling Club have been modified. 2.2.12 In the June 2016 event which reached 7.3m on the Bega gauge there were two properties near Kiss’ lagoon that experienced over-floor flooding. The Bega Bowling Club had its lower floor cellar flooded (20) (Table 8). 2.2.13 In 1975 a flood height of 7.4m meant that flood levels were up to the floorboards in one property on Nelson St (Table 8). 2.2.14 During 2011 when flood levels reached 8.45m on the Bega North gauge, nine properties in Dowling Street, Kirkland Avenue, Bega Street, Nelson Street and Swan Street were flooded over floor level, with a total of 21 properties flood affected (Table 8).

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2.2.15 During the largest historic event in Bega in 1971 which reached 9.78m on the Bega gauge, 38 properties were flood affected. During this flood event water was up to 2m deep in Bega Street. It is anticipated that a Probable Maximum Flood would reach 17.13m on the Bega gauge which is 7.35m deeper than the 1971 event (1). Table 8: Estimated number of properties inundated above floor level in Bega related to the Bega North (219990) Gauge (8)

Bega North Historical Annual No. Properties No Properties Gauge event Exceedance with Over floor flooded Height (m) Probability AEP % Flooding including yards

6.8m March 1973 18% AEP 2 unknown 7.3 June 2016 2 3 7.4 Feb 1992 12% AEP 1 unknown 8.45 March 2011 5% AEP 9 21 9.78 Feb 1971 0.7 % AEP unknown 38 17.13 na PMF unknown unknown

Isolation 2.2.16 During a PMF event (17.13m on the Bega North gauge) the Princes Highway would be overtopped by around 6.33m. Other roads to the South can also be cut including the Princes Highway near Kingswood, effectively isolating Bega. 2.2.17 During a PMF event closure of Tathra Road in a number of places is expected to isolate the South East Regional Hospital. 2.2.18 There are a number of properties upstream of the Princes Highway Bridge on the Bega River that are located within the floodplain. Refuge on higher ground above the PMF can be readily accessed. 2.2.19 Communities needing to access Grosses Creek Road and Buckajo Road would become isolated in a 5% AEP event (Bega North gauge height 8.78m) due to road closures (1). 2.2.20 On the western edge of Bega, properties on Charlotte Street and Ravenswood Street may become isolated. 2.2.21 On the north side of the Bega River, industrial properties accessing Buckajo Road can become isolated in a 5% AEP event (Bega North gauge height 8.78m). 2.2.22 There is also a potential for rural properties surrounding the town of Bega to become isolated during flooding events. These properties have evacuation access early during a flooding event but may become isolated during the 1% (9.79m at the Bega North gauge) and PMF events (17.13m at the Bega North gauge) (1). The period of isolation can be up to 48 hours (2). 2.2.23 Approximately five roads are affected by flooding and closed prior to a minor flood level. Between the minor and moderate flood level another 18 roads are either affected by flooding or closed (8). For more detailed information please refer to Table 6.

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Flood Mitigation Systems 2.2.24 No Levees are located in Bega. 2.2.25 There are no known detention basins in Bega.

Dams Brogo Dam (5) 2.2.26 Brogo Dam is located on the Brogo River upstream of Brogo and Bega. It is considered to be in good condition, but has not been designed to cater for a Probable Maximum Flood (PMF). Only an extremely rare flood such as a PMF could overtop the embankment and lead to dam failure by erosion of the dam's crest and downstream face (5). 2.2.27 A dambreak resulting from extreme rainfall is expected to be preceded by flooding more destructive than from a flood equivalent to the 1971 flood of record in the Bega Valley, and consequently vast areas downstream of Brogo Dam would already have been flooded. 2.2.28 A dam break from a non-flood “sunny day” failure is considered to have the most potential for loss of life due to the lack of warning time. Such a flood would take 40 minutes to reach Brogo and 2:50 hours to reach Bega. It could potentially inundate these towns and rural areas, destroy houses, damage power supply facilities, effect telephone lines and cut evacuation routes (5). Cochrane Dam (6) 2.2.29 In the event of the breeching of the Cochrane Dam wall, impact would be on low lying areas in the town Bega with depths not likely to be significant. Inundation is expected at all low lying areas along the Bega River including picnic/camping areas, the Bega Racecourse and sewerage treatment plant (6).

At Risk Facilities 2.2.30 During a minor flooding event Club Bega (the bowling club) greens begin to be flooded when the Bega North (219990) Gauge reaches 6.1m (8). Over floor flooding of the lower cellar level occurred during 2016 when flood levels reached 7.3m at the Bega gauge. 2.2.31 In the PMF event the following facilities are expected to be affected by flooding and require evacuation (1): a. Bega Valley Public School, b. South East Regional Hospital, c. Bega Valley Private Hospital, d. Bega District Nursing Home (The Oaks Country Village), e. Bega Valley Backpackers Hostel, f. The large supermarket complexes located on Auckland and Carp Streets, g. Veterinarian Hospital and the

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h. Bega Cheese Factory. 2.2.32 The South East Regional Hospital is located on Tathra Road. The main access to the hospital along Tathra Road is expected to be closed during the PMF event. Nearby Boundary Road is a dirt road and is not considered to be a suitable alternative during wet weather (20) (1). Refer to Annex 2 for further detail regarding flood affected facilities.

Other Considerations 2.2.33 None known.

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TARRAGANDA AND ANGLEDALE

2.3.1 Tarraganda is located directly to the east of Bega, on the eastern side of the Bega River (Map 5). In 2011 the population of Tarraganda was 246, with 90 private dwellings. 18% of the population is aged over 65 (19). 2.3.2 Angledale is located north east of Bega and is surrounded on the northern, western and southern sides by the Brogo River (Map 6). 2.3.3 Access to both locations can be lost when the bridges east of the main Princes Hwy are cut by floods waters.

Characteristics of Flooding 2.3.4 Tarraganda and Angledale are affected by a combination of riverine and overland flooding (1).

Flood Behaviour 2.3.5 Minor: During a minor flooding event the flooded areas surrounding Tarraganda are primarily flood storage areas. The Brogo River itself and adjacent banks to the north of Tarraganda can be floodways (1). 2.3.6 Moderate-Major: The Brogo and Bega Rivers and their adjacent banks become floodways. Localised flooding to the south of Tarraganda acts as flood storage (1). 2.3.7 PMF: During a PMF event the Bega and Brogo Rivers are floodways with the Brogo River north of Tarraganda, heading towards Angledale being a high hazard floodway with high velocity and high depth. The eastern side of the Bega and Brogo River junction and down the western side of Tarraganda will also act as a high hazard floodway (1). 2.3.8 No flood modelling has yet been completed at Angledale.

Classification of Floodplain 2.3.9 Properties located on the eastern bank of the Brogo River become isolated during a 5% AEP flood (Bega North gauge height 8.78m).They would be classified as High Trapped Perimeter areas for all events including the PMF. Tarraganda becomes isolated from Bega during a minor flooding event and has Rising Road Access to the east for all events including the PMF (1). No modelling has been completed for rural properties surrounding Tarranganda. 2.3.10 No flood modelling has been completed at Angledale.

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Inundation 2.3.11 Historical floods show that some rural properties are affected by flooding. Tarraganda Lane Main Bridge and Tarraganda Lane Anabranch Bridge are subject to frequent closure from overtopping.

Isolation 2.3.12 Properties on the eastern bank of the Brogo River that access Murrays Flat Road may become isolated during a 5% AEP flood (gauge height 8m).(1). 2.3.13 Angledale and Tarraganda may become isolated when Tarraganda Lane Main Bridge and Tarraganda Lane Anabranch Bridge crossing are closed and cut off. This occurs at the minor flood level of 5.0m at the Bega North gauge (219900). In a 1% AEP event these bridges would be submerged by approximately 4.5m of water. Closure of these bridges isolates Tarraganda and surrounding communities from the Bega Township for approximately 31 hours (1). Other rural properties may become isolated in the areas surrounding Angledale and Tarraganda during the 1% AEP (Bega North gauge (219900) height 9.79m) and PMF flood events. 2.3.14 The main access roads of Angledale Road and Tarraganda Road become closed at the minor flood level of 5.0m Bridges east of the Princes Highway can also be cut by floodwaters. Local rural roads also experience flooding. 2.3.15 Up to 30 houses can be isolated in the Tarraganda and Angledale areas (2).

Flood Mitigation Systems 2.3.16 No levees are located in the Tarraganda and Angledale communities.

Dams 2.3.17 No dams have been identified as posing a risk to Angledale or Tarraganda.

At Risk Facilities 2.3.18 There are no schools or other facilities located in Tarraganda or Angledale that are known to be at risk of flooding.

Other Considerations 2.3.19 No other considerations.

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CANDELO

2.4.1 Candelo is located in the Bega Valley Shire and is 23km southwest of Bega (Map 7). The Candelo Creek runs through the centre of the town. In 2011 the population was 735 (19).

Characteristics of Flooding 2.4.2 Candelo is affected by a combination of flash flooding and riverine flooding from Candelo Creek (1).

Flood Behaviour 2.4.3 Minor Flooding: the Candelo Creek acts as floodway during a minor flooding event. The northern corner of Mogilla Road acts as a high hazard floodway with fast water velocities (1). 2.4.4 Moderate to Major Flooding: During these events the Candelo Creek acts as a high hazard floodway. Parts of William Street, Sharpe Street, Eden Street, Mogilla Street, Candelo Street and Candelo Bega Road located close to the creek can also form part of this floodway (1). 2.4.5 PMF: Candelo Creek acts as a high hazard floodway during the PMF event. Parts of William Street, Sharpe Street, Eden Street, Mogilla Street, Candelo Street and Candelo Bega Road located close to the creek can also form part of this floodway. Additionally during the PMF event the land adjacent to Candelo Creek up to 200m from the creek can form part of the high hazard floodway (1).

Classification of Floodplain 2.4.6 During Moderate flooding events the bridge connecting the east and western sides of Candelo on Eden Street can be cut isolating the two halves of the town from each other (1). 2.4.7 Properties affected by flooding during a minor flooding event are located on Mogilla Street and are classified as having Rising Road Access (1). 2.4.8 During a 1% AEP and PMF event additional properties located on William Street, Sharpe Street and Eden Street are affected by floodwaters and are classified as having Rising Road Access (1). 2.4.9 Rural properties surrounding Candelo can also become isolated during all events (1).

Inundation 2.4.10 Properties along Mogilla Road, Sharpe Street, Candelo Street, William Street and Candelo Bega Road adjacent to Candelo Creek can experience flooding. Inundation mainly occurs at or above a 1% AEP event (1).

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Isolation 2.4.11 During a Moderate to Major flooding event the eastern side of Candelo can become isolated from the western side due to the closure of the bridge over Candelo Creek. (1). 2.4.12 Rural properties surrounding Candelo may become isolated due to road closures or damage to crossing structures. Isolations periods can be up to 48 hours (1). 2.4.13 During the 10 March 2000 flash flood event Candelo was cut off from main road routes for more than 12 hours (12).

Flood Mitigation Systems 2.4.14 There are no levees located in the Candelo Area. 2.4.15 There are no known detention basins.

Dams 2.4.16 Candelo is not impacted by any dams in the area.

At Risk Facilities 2.4.17 The local bowling club located on Mogilla Road/ Sharp Street begins to be affected by flooding at the minor level. Commercial premises such as the service station can be affected by flooding at the major and PMF flooding events (1). 2.4.18 There is one school located on William Street that is not affected by flooding however William Street can be flooded so school access would have to be from Bega or Queens Streets (1). 2.4.19 Refer to Annex 2 for further details.

Other Considerations 2.4.20 Candelo hosts the Candelo Village Festival, a music and arts festival in March. 2.4.21 There may also be privately run accommodation facilities in the area including properties that may experience isolation.

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TATHRA AND MOGAREEKA

2.5.1 Tathra and Mogareeka are located adjacent the Bega River entrance on the coast of NSW, 18km east of Bega (8). The population in 2011 was 1,992 (19). 2.5.2 Tathra can be isolated from Bega and Bermagui, being cut off from Bega at Jellat Flats and at various locations to the north by creek flooding along the road to Bermagui. Access to Merimbula is likely to be retained, except in extreme floods. Mogareeka can become isolated from Tathra during a flooding event (1).

Characteristics of Flooding 2.5.3 Tathra and Mogareeka are affected by a combination of riverine and overland flooding (1).

Flood Behaviour 2.5.4 Minor: During a minor flooding event the Bega River main channel acts as a floodway. Inundation does not affect properties during this event however the Bega River extensions to the south and the adjacent swamp and golf course act as low hazard flood storage (1). 2.5.5 Moderate to Major: During these events the Bega River main channel acts as a floodway. Inundation does not affect properties during this event however the Bega River extensions to the south and the adjacent swamp and golf course act as low hazard flood storage (1). 2.5.6 PMF: During the PMF event the Bega River main channel acts as a high hazard floodway. Inundation within the town of Tathra is primarily low hazard flood storage (1). 2.5.7 The topography to the east of Tathra is elevated ensuring the Bega River does not break its banks (1).

Classification of Floodplain 2.5.8 During flooding events ranging from minor to the PMF, Tathra becomes isolated from Bega to the east and Bermagui to the north. Inundation in the town is classified as having Rising Road Access (1). 2.5.9 Mogareeka becomes cut off from Tathra in a 5% AEP event (8.78m at Bega North gauge / 3.48m at Tathra gauge (219410)). Access to the north of Mogareeka may also be disrupted (1). 2.5.10 Modelling has not been completed over the road south to Merimbula and this may be flooded during the PMF event. In this situation Tathra would become a High Flood Island and be completely isolated (1).

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Inundation 2.5.11 Tathra receives no flood inundation during events below the PMF. Only the grounds of the golf course are affected along with access along Tathra Road and Tathra Bermagui Road (1). 2.5.12 The entire north eastern section of Tathra would be inundated in the PMF event. Low-lying properties on Andy Poole Drive, Esther Street, Edna Drive, Francis Hollis Drive, Dikera Road and John Taylor Crescent would all be inundated (1). 2.5.13 Warnings in Tathra rely on readings from the Bega North (219990) Gauge in Bega. Inundation at Tathra may also be subject to changes in the tides due to its proximity to the coast (1). 2.5.14 Bay Drive in Mogareeka becomes submerged during a 5% AEP event (Bega North Gauge height 8.78m) (1).

Isolation 2.5.15 Tathra becomes isolated from Bega and Bermagui due to road closure during a minor flooding event. Access to Merimbula remains open, however may be potentially cut off during an extreme event leaving Tathra completely isolated (1). Isolation could last up to 48 hours. 2.5.16 Mogareeka becomes isolated from Tathra during a 5% AEP event. Bay Drive in Mogareeka is also cut during a 5% AEP event isolating residents (Bega North gauge height 8.78m) (1) Isolation could be up to 18 hours during a 1% AEP event (Bega North gauge height 9.79m) (1).

Flood Mitigation Systems 2.5.17 There are no flood levees located in Tathra. 2.5.18 There are no detention basins located in Tathra.

Dams 2.5.19 There are no dams that affect Tathra or Mogareeka.

At Risk Facilities 2.5.20 During minor to major flooding events the only property affected is the local golf course (1). 2.5.21 During a PMF event the Tathra Beach Motor Village, Big 4 Tathra Beach Holiday Park and multiple holiday units will be affected by flooding. The Tathra Beach Bowling Club may also be affected (1) (Refer to Annex 2).

Other Considerations 2.5.22 Tathra has two caravan parks and multiple holiday units and houses. The area has a high tourist population during the summer months and holiday times.

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BERMAGUI / WALLAGA LAKE / CUTTAGEE / MURRAH

2.6.1 Bermagui is located at the entrance of the Bermagui River on the Far South Coast of NSW (Map 9). In 2011 the population was 1667 and there were 718 private dwellings (19). The population is expected to have increased substantially since 2011. 2.6.2 Wallaga Lake Township is located around 10km to the north of Bermagui on the foreshores of Wallaga Lake (Map 10). It had a population of around 526 people in 2011, however this can increase during holiday periods. 2.6.3 Cuttagee is located around 11km to the south of Bermagui on the foreshores of Cuttagee Lake. 2.6.4 Murrah is located around 20km to the south of Bermagui to the south of the Murrah River.

Characteristics of Flooding 2.6.5 Bermagui is affected by a combination of flash flooding, overland flooding and riverine flooding (2). Flooding in town can also be influenced by tidal conditions and storms surge. 2.6.6 Bermagui, Wallaga Lake, Cuttagee and Murrah can all be affected by the entrance conditions of the coastal lakes, with flooding generally being worse when heavy rainfalls combine with closed entrance conditions (20).

Flood Behaviour 2.6.7 Historically properties within Bermagui have been affected by flash flooding, overland flooding and tidal inundation. 2.6.8 Bermagui Township can experience flooding when high tides combine with heavy rainfall. Low lying parts near the western end of Lamount Street can be particularly affected by flooding. 2.6.9 The effects of riverine flooding from the Bermagui River are largely unknown as a flood study in this catchment has yet to be completed. 2.6.10 Other localities including Wallaga Lake, Cuttagee and Murrah experience isolation due to road and bridge closures (refer to Table 10).

Classification of Floodplain 2.6.11 Unknown. Bermagui is not known to become isolated. It has high ground to retreat to within the town.

Inundation 2.6.12 Historically, properties in Bermagui most commonly experience flash and overland flooding. Bermagui can be affected by unusually high tides in combination with heavy rainfall.

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2.6.13 In more recent events Lamont Street, the Bermagui supermarket, the golf course, the Bermagui Beach Hotel (basement and restaurant), Dickson Oval, the local tourist park and Bermagui Public school were all affected by flooding (13) (20). 2.6.14 Nutley’s Creek Rd and Wapengo Lake Rd can be closed during flooding events (8).

Isolation 2.6.15 Flooding to the south of the Bermagui Township along the Tathra- Bermagui Road can cut the southern access into and out of Bermagui during minor flood events. Access to the north has remained open during past flood events, however future flood studies will need to assess whether or not the bridge over the Bermagui River could potentially be cut during larger events. If this is the case, Bermagui would be isolated (2). 2.6.16 Road closures along the Tathra-Bermagui Road to the south of Bermagui near the Murrah River and north of Wapengo can lead to the isolation of properties to the West of Murrah Lagoon (refer to Table 10).. 2.6.17 Bridge closures near Boggy Creek to the north of Cuttagee Lake can also lead to the isolation of a number of properties (refer to Table 10). 2.6.18 The subdivision known as Fairhaven, to the South of Wallaga Lake can become isolated due to road closures due to flooding (refer to Table 10).

Flood Mitigation Systems 2.6.19 There are no flood levees located in Bermagui. 2.6.20 There are no detention basins located in Bermagui.

Dams 2.6.21 No dams have been identified as impacting Bermagui.

At Risk Facilities 2.6.22 Historically, the Bermagui Public School has been affected by flooding. This can be due to flash flooding, overland flooding or riverine flooding (20). 2.6.23 The holiday park in Bermagui can be affected by flash flooding (13). 2.6.24 There are numerous caravan parks at Wallaga Lake which are potentially flood affected including the: a. Big 4 Wallaga Holiday Park b. Ocean Lake Caravan Park 2.6.25 For further details on these facilities refer to Annex 2.

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Other Considerations 2.6.26 Bermagui has a caravan park and multiple holiday units and houses. The area has a high tourist population during the summer months and holiday times. 2.6.27 Bermagui holds a seaside fair in March which draws thousands of people.

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BUCKAJO AND SPRINGVALE

2.7.1 Buckajo and Springvale are rural localities located to the west of Bega (Maps 11 and 12). Both locations have known isolations when Buckajo Road is closed.

Characteristics of Flooding 2.7.2 Buckajo and Springvale are isolated by road closures caused by riverine and overland flooding.

Flood Behaviour 2.7.3 Unknown – no flood mapping exists.

Classification of Floodplain 2.7.4 Unknown – no mapping exists.

Inundation 2.7.5 Buckajo Road becomes closed when the Bega North (219990) Gauge reaches 5.5m (8).

Isolation 2.7.6 Properties within Springvale and Buckajo localities become isolated when the Bega North (219990) Gauge reaches 5.5m. This affects 25-30 properties which become isolated usually for a period of 24 hours (8).

Flood Mitigation Systems 2.7.7 There are no flood levees. 2.7.8 There are no detention basins.

Dams 2.7.9 There are no dams that impact the area.

At Risk Facilities 2.7.10 Unknown, however this area is rural with no defined towns.

Other Considerations 2.7.11 No other considerations.

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JELLAT JELLAT, KALARU AND WALLAGOOT

2.8.1 Jellat Jellat, Kalaru and Wallagoot are located to the east of Bega (Maps 13, 14 and 15). They are located on the large floodplain that acts as flood storage during flood events (1). 2.8.2 Large areas of farmland are flooded, causing stock and crop losses and sand deposition over fields. Numerous properties can become isolated, and evacuations have previously been required from farm properties (1). 2.8.3 In 2011 the population of Kalaru was 641 with 237 private dwellings (19). Population data is not available specifically for Jellat Jellat and Wallagoot.

Characteristics of Flooding 2.8.4 Jellat Jellat is affected by riverine, overland and flash flooding (1). 2.8.5 Flooding in Kalaru and Wallagoot is a combination of overland and riverine flooding (1).

Flood Behaviour 2.8.6 Minor: During a minor flooding event the Bega River and adjacent banks up to 500m act as a floodway. The Jellat Jellat Flats and areas surrounding Kalaru and Wallagoot act as flood storage. Flood depths can be above 5m in some locations (1). 2.8.7 Moderate to Major: During a minor flooding event the Bega River and adjacent banks up to 500m act as a floodway. The Jellat Flats and areas surrounding Kalaru and Wallagoot act as flood storage. Depths can be above 10m in some locations (1). 2.8.8 PMF: During the PMF event the Bega River and adjacent banks, up to 750m, act as a high hazard floodway. Additionally the area east of Jellat Jellat following Tathra Road to the south leading into the Jellat Jellat Flats becomes a high hazard floodway (1). The Jellat Jellat Flats become flood storage with depths above 15m in some locations. Inundation in Kalaru and Wallagoot act as flood storage areas (1).

Classification of Floodplain 2.8.9 Jellat Jellat, Kalaru and Wallagoot have Rising Road Access for all events up to the PMF. Rural properties located on the Jellat Jellat Flats are yet to be classified (1). 2.8.10 Above a 10% AEP (gauge height 8.26m at Bega North gauge), up to the PMF event Wallagoot becomes a high flood island. Rural properties surrounding Wallagoot are yet to be classified (1).

Inundation 2.8.11 Minor: rural properties with access off Tathra Road may experience inundation (1).

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2.8.12 Moderate to Major: Jellat Jellat will experience some inundation in these flooding events. Low lying areas on the outskirts of Kalaru and Wallagoot may also experience inundation (1). 2.8.13 PMF: During a PMF event rural properties, Jellat Jellat and large portions of Kalaru and Wallagoot will become inundated (1).

Isolation 2.8.14 Kalaru becomes isolated from Bega when the Jellet Jellat Flats area becomes flooded. Wallagoot also becomes completely isolated. 2.8.15 Minor: During a minor event Tathra Road becomes closed resulting in isolation of rural properties and Jellat Jellat. Kalaru and Wallagoot become isolated from Bega but retain access to Tathra and to the south via Sapphire Coast Drive (1). 2.8.16 Above Moderate: Above the moderate flood level Wallagoot becomes completely isolated. Rural properties and Wallagoot may remain isolated for up to 5 days (1).

Flood Mitigation Systems 2.8.17 There are no flood levees located in the locality. 2.8.18 There are no detention basins located in the locality.

Dams 2.8.19 No dams have been identified as impacting the area.

At Risk Facilities 2.8.20 Kalaru has the Countryside Caravan Park which may be affected by flooding in the PMF event (1) (Refer to Annex 2). 2.8.21 There are no schools located in these areas.

Other Considerations 2.8.22 A large number of tourist accommodations are located within Kalara and Wallagoot. 2.8.23 The Sapphire Coast Turf Club is located in Wallagoot.

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BEMBOKA

2.9.1 Bemboka is located on the Snowy Mountains Highway, 36km west of Bega (Map 16). The population in 2011 was 577 and the number of private dwellings was 235 (19). Bemboka is situated alongside the upper reaches of the Bega River (also known as the Bemboka River). Traffic interruptions can be experienced on the Snowy Mountains Highway east of Bemboka (2).

Characteristics of Flooding 2.9.2 Bemboka is affected by a combination of overland and riverine flooding (2).

Flood Behaviour 2.9.3 No flood studies have been done for this area.

Classification of Floodplain 2.9.4 No information.

Inundation 2.9.5 Historically flooding in this area has resulted in road closures and isolation of properties. No further information regarding inundation exists.

Isolation 2.9.6 Rural properties accessing Yankees Gap Road and Sullivans Gap Road can experience isolation due to flooded access (2).

Flood Mitigation Systems 2.9.7 There are no flood levees located in Bemboka. 2.9.8 There are no detention basins located in Bemboka.

Dams 2.9.9 Cochrane Dam is located approximately 13 km North West of Bemboka (6) 2.9.10 In the event of a dam wall breech, impact will be on low lying areas in the town of Bemboka with depth not likely to be significant. Inundation would occur along all low lying areas along the Bemboka River including picnic/camping areas and the Bemboka sports ground (6). 2.9.11 The structural integrity of the bridge on the Snowy Mountains Highway over the Bemboka River may also be compromised (6).

At Risk Facilities 2.9.12 Picnic/camping areas and the Bemboka sports ground may be at risk from low level flooding due to failure of Cochrane Dam (6).

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Other Considerations 2.9.13 There are no other considerations.

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Towamba River Valley

MERIMBULA

2.10.1 Merimbula is located on the coast 35km south east of Bega within the Towamba River basin (Map 17). The Merimbula Lake and Back Lake catchments including their tributaries of Millingandi Creek, Boggy Creek, Bald Hills Creek and Merimbula Creek all converge at the township of Merimbula where they drain into the sea (22). In 2011 the population of Merimbula was 5945 with 2468 private dwellings. 25% of the population is over the age of 65 (19). 2.10.2 Merimbula is a popular tourist destination and the population increases during the summer months and holiday times. 2.10.3 Critical infrastructure such as the regional airport, Princes Highway and Merimbula CBD may be affected by creek, lake or ocean water levels (22).

Characteristics of Flooding 2.10.4 Merimbula is affected by a combination of flash flooding, creek flooding and estuarine flooding (14).

Flood Behaviour 2.10.5 At the time of writing, the Merimbula Flood Study was on public exhibition. Whilst information from the draft study has been used in this plan, further modifications may be required once the final flood study is published. Merimbula Lake Catchment (Top Lake) 2.10.6 The Merimbula Lake catchment (also known as Top Lake) contains the majority of the Merimbula urban areas including the CBD fronting onto the Lake. Flooding within the Merimbula Lake catchment is largely contained to within the creeks and open space upstream of the Market Street Bridge on Merimbula Lake. However, downstream of the bridge floodwaters can expand into a number of residential streets on both the northern and southern foreshores of the lake. Due to the steep topography of the area there are only small differences in the flood extents between design events (22). Back Lake Catchment 2.10.7 The Back Lake catchment includes the northern parts of the Merimbula Township. Flooding in Back Lake is largely contained to within the creek and open space areas between the lake entrance and Henwood Street. Upstream of Henwood Street low lying properties can be inundated including the Sapphire Valley Caravan Park (22). Flood levels in Back Lake are extremely sensitive to the lake entrance berm condition (22).

Classification of Floodplain

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2.10.8 Low Flood Islands: Large flood events in Merimbula and Back Lakes result in the creation of low flood islands and the loss of road access for some pockets posing a significant risk to life (22). Key areas affected include the: a. Sapphire Valley Caravan Park, b. Acacia Ponds Retirement complex and the c. Regional Airport. 2.10.9 High Flood Island: Properties on the Southern Headland near the Merimbula Lake entrance can become isolated on a High Flood island. Some of these properties, primarily on Fishpen Road fronting the lake, can also be inundated. 2.10.10 Rising Road Access: Properties which back onto Merimbula Creek between Henwood and Reid Street (including properties along Berrambool Drive, Garden Circuit and Munn Street), can be flooded at their rear, but are expected to have rising road access available out from the fronts of their properties in all flood events up to a PMF.

Inundation 2.10.11 Downstream of the Market Street Bridge on Merimbula Lake properties in Beach Street, Main Street, Market Street and Fishpen Road are first inundated in the 20% AEP. These can be flooded up to 0.5m in a PMF (22). 2.10.12 On the Back Lake system between Henwood and Reid Street (including along Berrambool Drive, Garden Circuit and Munn Street), low lying properties are inundated in 20% AEP events. However due to the topography the fronts of these properties remain flood free even during a PMF. 2.10.13 Table 9 shows the numbers of property lots that are expected to experience overland flooding for each design event. Information is not currently available on the number of properties expected to experience over-floor flooding (22). 2.10.14 During a flash flooding event during September 2014 low lying properties along Market Street were inundated and Market Street was closed (14). 2.10.15 Oaklands Rd and Millingandi Rd can also be closed due to flooding (2). Table 9: Estimated number of properties flooded in design events by catchment overflow

Gauge Annual No. Properties Height (m) Exceedance with Overland Probability AEP % Flooding

na 20% 219 na 10% 229 na 5% 246 na 2% 248 na 1% 255 na 0.5% 310 na PMF 323

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Isolation 2.10.16 Historically there have been no reports of Merimbula becoming isolated during a flooding event. 2.10.17 Within Merimbula the most recent flood study suggests that some areas can become isolated and potentially subsequently inundated on low flood islands. These areas include: the Sapphire Valley Caravan Park, Acacia Ponds Gateway Lifestyle retirement complex and the Merimbula Airport. 2.10.18 Properties at the end of Green Point Road and Stringybark Place can become isolated on High Trapped Perimeters. 2.10.19 The southern headland of Merimbula Lake can be isolated on a high flood island, with inundation of the lower lying parts facing the lake.

Flood Mitigation Systems 2.10.20 There are no flood levees located in Merimbula. 2.10.21 There are no prescribed detention basins located in Merimbula.

Dams

Yellow Pinch Dam (7) 2.10.22 In the event of a dam failure at the Yellow Pinch Dam, properties located in Merimbula downstream of the dam would be affected by flooding. The Reid Street / Sapphire Coast Drive Bridge in Merimbula would be underwater by approximately 1m. Once the bridge is closed properties in Berrambool and Tura Beach would become isolated from Merimbula (7). 2.10.23 The Sapphire Valley Caravan Park and Berrambool Sportsground would be inundated along with up 30 private residences. Evacuation access for these properties is available moving uphill away from the creek channel (7).

At Risk Facilities 2.10.24 The Sapphire Valley Caravan Park at Merimbula is first inundated in a 10% flood event and becomes isolated on a Low flood island in a 5% AEP flood event. During a 1% AEP event flood depths are expected to be 0.48m. This is expected to rise to as high as 2.23m during a PMF making it a very high risk area. This caravan park is also at some risk of flooding due to failure of Yellow Pinch Dam (7). 2.10.25 The Berrambool Sport field buildings located in the centre of the sportsground off Berrambool Drive can be inundated in the 20% AEP by depths of 0.49m. This is expected to increase up to 2.03m during a PMF (22). 2.10.26 Merimbula Airport is flood free during a 5% AEP event, however access to the airport is lost during a 2% event and infrastructure is first inundated by

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0.02m. The runway is expected to be overtopped during a PMF event with flood depths of around 0.55m (22). 2.10.27 The Acacia Ponds Retirement Complex is considered to be located in a high hazard zone as it becomes isolated and subsequently inundated on a low flood island during a 1% AEP event or larger. The site is first inundated in a 5% AEP with low depths of 0.02m which is expected to increase to 0.56m during a PMF (22).

Other Considerations 2.10.28 Merimbula has multiple caravan parks and holiday units and houses that are not affected by flooding. The area has a high tourist population during the summer months and holiday times.

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EDEN

2.11.1 Eden is located in Twofold Bay on the Far NSW South Coast within the Towamba River basin, 54km south east of Bega (Map 18). 2.11.2 In 2011 the population of Eden was 3,207 with 1,294 private dwellings. 22% of the population is over the age of 65 (19).

Characteristics of Flooding 2.11.3 Eden is affected by a combination of flash flooding, creek flooding and estuarine flooding from Lake Curalo (14).

Flood Behaviour 2.11.4 Lake Curalo is fed by a number of creeks including Palestine Creek which discharges to the ocean at the end of Aslings Beach, to the north of the Eden town centre. Lake Curalo has an untrained entrance that is predominantly closed. When the entrance is closed water from the upstream catchment has the potential to build up behind the entrance berm and inundate low lying areas around the lake. In these instances the lake can be artificially opened (11).

Classification of Floodplain 2.11.5 Unknown

Inundation 2.11.6 The BUPA Aged Care Facility located on Barcley Road in Eden has previously been flooded as a result of a combination of stormwater flooding from an adjacent creek and backwater flooding from a failed sewer pumping station. In January 2016 this flooding occurred as a result of 100 to 150mm of rain falling within a 2 hour period at a maximum hourly rate of 180mm/hour (20).

Isolation 2.11.7 The Eden Golf Course can become isolated when the Princes Highway is closed. 2.11.8 Eden Cove Estate on Government Road can experience short term isolations.

Flood Mitigation Systems 2.11.9 None known.

Dams 2.11.10 There are no prescribed dams located upstream of Eden.

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At Risk Facilities 2.11.11 The BUPA Aged Care Facility located on Barcley Road in Eden is at risk of over-floor flooding. 2.11.12 Eden Golf Course. The creek running through the Eden Golf Course can inundate parts of the course and flow over the neighbouring Princes Highway. 2.11.13 Eden High School may have some risk of flooding as it is located next to the BUPA Aged Care facility. 2.11.14 South Coast Holiday Park Eden located opposite Aslings Beach is at risk of flooding from coastal inundation as well as flooding from Curalo Lagoon.

Other Considerations 2.11.15 The Princes Highway near the Eden Golf course can be cut, with depths of around 1m over the road reported during the 31 January 2016 flood event (20). The Highway was also cut in this event for short periods in other locations.

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BOYDTOWN

2.12.1 Boydtown is located in Twofold Bay on the Far NSW South Coast within the Towamba River basin approximately 7km to the south of Eden (Map 19). 2.12.2 Boydtown has a population of 162 people, with 103 private dwellings (19).

Characteristics of Flooding 2.12.3 Boydtown has some properties potentially affected by a failure of the Ben Boyd Dam which is located within Boydtown Creek. A number of caravan parks are also at risk of isolation during dam failure.

Flood Behaviour 2.12.4 The Towamba River discharges to the ocean to the south of Boydtown in an unpopulated area. The narrow barrier that forms Whale Beach lies across the mouth of the Towamba River and is at risk of beach erosion during oceanic storm events. During major flood events this barrier is often breached at various locations and occasionally has been completely washed away (11).

Classification of Floodplain 2.12.5 Unknown

Inundation 2.12.6 There is a small risk of inundation within Boydtown due to the failure of Ben Boyd Dam. This primarily would affect those properties backing onto Boydtown Creek as well as the Princes Highway.

Isolation 2.12.7 The Discovery Parks Holiday Park, Boydtown Beach Holiday Park and the Boydtown Caravan Park could potentially be isolated during a Ben Boyd Dam, dam failure event.

Flood Mitigation Systems 2.12.8 Unknown

Dams 2.12.9 In the event of a dam failure at the Ben Boyd Dam (4), 2 properties located immediately downstream of the dam at Boydtown would be reached within 12 to 16 minutes. The two residences on these properties however, are not expected to be inundated during either a Sunny Day, or PMF Dambreak flood. Dambreak floodwater spilling over the planned development area on the western side of the Princes Highway could potentially be a risk to the houses in that area in the future (4).

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2.12.10 The Princes Highway is also potentially cut during dam failure which could isolate people in the Discovery Parks Holiday Park, Boydtown Beach Caravan Park and the Boydtown Caravan Park.

At Risk Facilities 2.12.11 The Discovery Parks Holiday Park, Boydtown Beach Holiday Park and the Boydtown Caravan Park could potentially be isolated during a Ben Boyd Dam, dam failure event.

Other Considerations 2.12.12 None known.

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TOWAMBA

2.13.1 Towamba is a small town located about 32km inland from Eden on the Towamba River in the Far NSW South Coast (Map 20). 2.13.2 In 2011 the population of Towamba was 372 people with 200 private dwellings (19).

Characteristics of Flooding 2.13.3 Towamba can be isolated due to flooding.

Flood Behaviour 2.13.4 Unknown

Classification of Floodplain 2.13.5 Unknown

Inundation 2.13.6 Historically the Towamba Bridge has been flooded. It has been reported that this bridge was flooded to depths of 7.8m in 1928 following 450mm of rain (recorded at Eden), and 6.1m in 1934 following 457mm of rain (20).

Isolation 2.13.7 Towamba can be isolated due to various road closures including the inundation of the Towamba Bridge.

Flood Mitigation Systems 2.13.8 Unknown

Dams 2.13.9 There are no dams located upstream of Towamba.

At Risk Facilities 2.13.10 Unknown

Other Considerations 2.13.11 There is no mobile coverage in Towamba, so communications during flood events is difficult (20).

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ROAD CLOSURES AND ISOLATED COMMUNITIES

ROAD CLOSURES

2.14.1 Table 10 lists roads liable to flooding in the Bega Valley LGA. Table 10: Roads liable to flooding in Bega Valley LGA.

Road Closure location Consequence Alternate Route Indicative of closure gauge height

Princes Highway Bega (Kiss’ Lagoon). Available 3.0m-4.6m (8) (Bega) (2) Note the new Highway now bypasses this area. Princes Highway Sth of Bega near Potential No (Bega) (18) “Kingswood” property isolation of (36.7256S, 149.8194E) Bega Princes Highway Pambula (Pambula (Pambula) (2) River) Princes Highway Intersection with No alternatives (2) Government Rd at North Eden, from local catchment Princes Highway At Eden Golf Course, No alternatives Eden) (2) from local catchment Tathra-Bega- At Jellat Jellat Flat Available 1.28m (8) Bemboka Rd (2) Tathra-Bega- Bega (Nth East end of Available 6.0m (8) Bemboka Rd (2) East St) Tathra Bermagui 6.57m (8) Rd (8) Tathra Bermagui At Murrah River Can isolate Not if road also NA Rd (20) between Barragga Bay properties to closed in other and Murrah the west of locations Murrah Lagoon Tathra-Bermagui Between Murrah and Can isolate Not if road also NA Rd (20) Wapengo properties to closed in other the west of locations road MR 272 (Bega- Tarraganda (Bega River) Available Tanja-Bermagui- Tilba) (tourist drive) (2) MR 272 (Bega- Wapengo (at local Available Tanja-Bermagui- causeway) Tilba) (tourist drive) (2) MR 272 (Bega- Wallaga Lake Available Tanja-Bermagui- causeways Tilba) (tourist drive) (2) MR 276 (Kiah- Stoney Creek

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Road Closure location Consequence Alternate Route Indicative of closure gauge height

Towamba- Burragate-Rocky Hall) (Towamba Rd) (2) MR 276 (Kiah- Towamba River Available Towamba- Burragate-Rocky Hall) (Towamba Rd) (2) Tilba - Punkall Rd causeway 6.84m (8) (8) MR 276 (Kiah- Jingo Creek 5.7m (8) Towamba- Burragate-Rocky Hall) (Towamba Rd) Big Jack Causeway between No alternatives 6.57m (8) Mountain Rd (2) Burragate and New Buildings Road Orchard Road (2) Off Big Jack Mountain No alternatives Road Bens Creek (2) Between Towamba and Pericoe Causeway (2) Between Pericoe and Imlay Road Upper Kiah Road Available (2) Robinsons Road Off MR 91 No alternatives (2) New Buildings Causeway No alternatives 6.57m (8) Road (2) North of Causeway No alternatives Burragate (2) Frogshollow Ln 500m from Princes Hwy 6.57m (8) (8) Lake Rd (2) Closed by high No alternatives Wallagoot Lake levels Murrays Flat Rd Off Dr George Mtn Rd No alternatives 6.57m (8) (2) Wallagoot Rd (8) 6.57m (8) Wallagoot Ln (8) Bega River crossing 6.57m (8) Angledale Rd (2) Multiple locations 5.5m (8) Bega Street 5.0m (8) East Street Causeway near No alternatives 6.0m (8) racecourse Auckland Street Northern end No alternatives 5.0m (8) Reedy Swamp Rd Reedy Swamp 6.57m (8) (2)

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Road Closure location Consequence Alternate Route Indicative of closure gauge height

Buckajo Rd (2) Bega river crossings No alternatives 5.5m (8) Moore Wrens Rd Western end 4.2m- (8) Tangar Road (8) 5.1m (8) Swan St (8) Corner of Park St 6.34m Carp Street (8) Western end 6.5m Bournda Rd (8) 6.57m (8) Clarks Rd (8) 6.57m (8) Little Glen Oaks 6.57m (8) Rd (8) Poplar Ave (8) 6.57m (8) Wallagoot Lake Bournda 6.57m (8) Road (8) Tarraganda Rd 6.57m (8) (8) Nelson St (8) 6.57m (8) Upper St (8) Bega, western end 6.57m (8) Parrable St (8) Bega 6.57m (8) Wandella Rd (8) causeway 6.57m (8) East Sams Corner causeway 6.57m (8) Rd (8) McGregors Rd (8) Causeway Off Pearce’s 6.57m (8) Rd Field Buckets Rd Quaama 6.57m (8) (8) Nutleys Creek Rd Nutleys Creek (2) Wapengo Lake Culvert at 1.3km No alternatives Rd (2) Westrops Rd (2) Coolagolite Creek Billaroy Rd (2) Bredbatoura Creek No alternatives Upper Brogo Rd 12km from Verona Rd No alternatives 6.57m (8) (8) Oaklands Rd (2) Closed by Pambula River Millingandi Short Boggy Creek cut (2) Milligandi Rd (2) Boggy Creek Coast Rd (2) Handcocks Bridge No alternatives Nethercote Rd Severs causeway (2) Nethercote Rd 500m east of (2) Nethercote Nethercote Rd Yowaka River (2)

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Road Closure location Consequence Alternate Route Indicative of closure gauge height

Back Creek (2) 1km north Yowaka River Wonboyn Rd (2) Watergums Creek Wonboyn Rd (2) Wonboyn Creek Sullivans Gap Rd Causeway No alternatives (2) Yankee Gap Road Greens Crossing Rd 6.57m (8) (8) Desert Creek (8) Bridge at Numbugga 6.57m (8) Tantawanglo Ln Causeway near MR 275 (2) Church Ln (2) Causeway Racecourse Rd Causeway (2) Tantawanglo Ln Causeway at speedway 6.57m (8) (8) Tantawanglo Mtn Bridge at Six Mile Creek 6.57m (8) Rd (8) Eden to 6.57m (8) Towamba Road (8) Dorrigo Rd (8) causeway 6.57m (8)

SUMMARY OF ISLOATED COMMUNITIES AND PROPERTIES

2.15.1 Table 11 summaries communities liable to isolation and potential periods of isolation. Information presented here is based on flood studies as well as historical experience and does not reflect the duration of isolation expected in larger and extreme events. 2.15.2 Refer to specific risk areas for further detail on isolations.

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Table 11: Potential Periods of Isolation for communities in the Bega Valley LGA during flooding events

Town / Area (River Population/ Flood Affect Classification Approximate NOTES Basin) Dwellings period isolation

Bega Isolated unknown The Princes Highway can cut south of Bega near “Kingswood”. The highway is also expected to be cut at the bridge by over 6m during a PMF. Bega (parts) and Unknown Various isolated Rural properties surrounding Bega may be isolated. rural surrounds Properties on Grosses Creek Road, and Buckajo Road would become isolated in a 5% AEP event (Bega North gauge height 8.78m) (1). Properties on Charlotte Street and Ravenswood Street may also become isolated.

Burragate Estimated 200- Isolated Likely to be isolated for 3-4 days due to closure of numerous 300 pp causeways.

West of Cobargo 638 pp in district Isolated Can be isolated. Large number of people living in hills.

Cuttagee Lake (some Unknown Isolated Some properties can be isolated when a bridge cuts to the North of properties) Cuttagee Lake (20).

Angledale and Tarraganda Isolated 31 hours Isolated when Tarraganda Lane Main Bridge and Tarraganda Lane Tarraganda 246pp, 90 Anabranch Bridge crossings are closed and cut around 5m at the Bega dwellings North gauge Eden Cove Estate Unknown Isolated Can experience short term isolations due to flooding of Palestine Creek (Government Road, Eden) Rural properties Unknown Isolated Up to 48 hours Rural properties surrounding Candelo may become isolated due to road surrounding Candelo closures or damage to crossing structures.

Tathra 1,992pp, 805 Rising Road Access within town Up to 48 hours May be potentially cut off during an extreme event leaving Tathra dwelling but town may be Isolated (High completely isolated (1). Flood Island)

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Town / Area (River Population/ Flood Affect Classification Approximate NOTES Basin) Dwellings period isolation

Mogareeka Unknown Isolated Up to 18 hours Becomes isolated during a 5% AEP event (Bega North gauge height during a 1% AEP 8.78m) (1) event Murrah Unknown Isolated People living on rural properties west of the Tathra –Bermagui road can become isolated when the road is cut at the Murrah River and to the north of Wapengo. Nethercote 366 pp in district Isolated Can be isolated when Evoka Road is cut.

Rocky Hall 610 pp in district Isolated Can be isolated when Big Jack Mountain Road is cut at multiple causeways. Springvale and 25-30 properties Isolated 24 hours Become isolated when the Bega North (219990) Gauge reaches 5.5m Buckajo (8).

Towamba 372 pp in district Isolated Towamba can be isolated due to road closures including the closure of the Towamba bridge.

Wallagoot and Unknown High Flood Island (Wallagoot) 5 days Wallagoot is a high flood island above a 10% AEP (gauge height 8.26m surrounding rural at Bega North gauge) up to the PMF. Rural properties have not been properties classified but can become isolated. Womboyn Isolated Can be isolated due to road closures as occurred in 2014, 2015 and 2016. Popular camping area.

Rural properties near Unknown Isolated Unknown Rural properties accessing Yankees Gap Road and Sullivans Gap Road Bemboka can experience isolation due to flooded access (2).

Wyndham Unknown Isolated More than 12hrs During March 2000 flash flood event Wyndham was cut off from main road routes for more than 12 hours. Wyndham Road, between Wyndham and Pambula, was closed indefinitely after a small bridge on the route was washed away completely (12). Note: Periods of isolation are a guide only. Liaison with the Local Controller and communities/residents involved is essential during periods of potential and actual isolation.

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ANNEX 1: BEGA RIVER BASIN SCHEMATIC

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ANNEX 2: FACILITIES AT RISK OF FLOODING AND/OR ISOLATION

Facility Name Street Suburb Comment

Schools

Bega Valley Public 27 Auckland St Bega Affected in a PMF School (1) Bermagui Public George St Bermagui School Candelo Public William Street Candelo Is not affected by flooding however William School Street can be flooded so school access would have to be from Bega or Queens Streets Eden High School Barclay Street Eden May have some risk of flooding as it is located next to the BUPA Aged Care facility which has previously flooded. Towamba Public 7 Towamba Street Towamba Can be isolated when the bridge over the School Towamba River closes. Child Care Centres

Unknown Facilities for the aged and/or infirm

Bega Valley Private 31 Parker St Bega Affected in a PMF Hospital (1) Bega District Carp St Bega Affected in a PMF Nursing Home (The Oaks Country Village) (1) BUPA Aged Care 22 Barclay St Eden Has previously experienced over floor Facility flooding. Gateway Lifestyle 3197 Princes Merimbula Low Flood Island, high hazard in 1% AEP Acacia Ponds Highway events. Flood depths up to 0.56m in a PMF retirement complex event. The South East Tathra Road Bega The main access to the hospital along Tathra Regional Hospital (1) Road is expected to be closed during the PMF event isolating the hospital. The hospital may also experience some flooding during a PMF. Utilities and infrastructure

Airport (Merimbula) Arthur Kaine Drive Merimbula Low Flood island. Begins to be inundated and isolated in a 2% AEP. Flood depths up to 0.5m expected during a PMF. Telecommunications Bega Valley Telecommunications systems may be effected over large areas of the Bega Valley due to flood waters damaging necessary infrastructure Bega Cheese Factory 11-13 Lagoon St Bega Affected in a PMF (1) Berrambool Sport Berrambool Drive Merimbula Can be inundated in the 20% AEP by depths of Field buildings 0.49m increasing up to 2.03m during a PMF

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Facility Name Street Suburb Comment (22). Supermarket Auckland and Carp Bega Affected in a PMF Complexes (1) Streets Veterinarian Bega Affected in a PMF Hospital (1) Candelo Bowling Mogilla Road / Candelo Club Sharp St Tathra Beach Dilkera Rd Tathra May be affected in a PMF Bowling Club Sewage Pumping Near Barcley St Eden These have previously failed contributing to Facilities flooding of the BUPA Aged Care facility. Camping Ground / Caravan Parks / Hostels

Bega Valley 31 Kirkland Bega Affected in a PMF Backpackers Hostel Crescent (1) Big 4 Tathra Beach 41 Andy Poole Tathra Affected in a PMF Holiday Park Drive The Discovery Parks 731 Princes Hwy Boydtown Could potentially be isolated during a Ben Holiday Park Boyd Dam, dam failure event. Boydtown Beach 1 Boydtown Park Boydtown Could potentially be isolated during a Ben Holiday Park Rd Boyd Dam, dam failure event. Boydtown Caravan Princes Highway Boydtown Could potentially be isolated during a Ben Park Boyd Dam, dam failure event. Countryside Caravan 3 Old Wallagoot Rd Kalaru May be affected in a PMF. Park Tathra Beach Motor 9 Andy Poole Drive Tathra Affected in a PMF Village Zane Grey Tourist 1 Lamont St Bermagui Was flooded in March 2012 with up to 8 Park (13) permanent cabins flooded with stormwater. Sapphire Valley 29 Sapphire Coast Merimbula High risk low flood island. Becomes isolated Caravan Park (7) Drive during a 5% AEP and inundated from 10% AEP. Flood depths of up to 2.23m expected during a PMF. Is also at risk of flooding due to failure of Yellow Pinch Dam (7) ~ 145 sites including caravan and cottages (12) Regatta Point Regatta Point Rd Wallaga Lake ~160 sites including caravan and cottages Holiday Park (12). Could potentially be isolated. Is located within a low lying area. South Coast Holiday Aslings Beach Rd Eden ~ 200 sites including caravan and cottages Parks Eden Tourist (12) Park

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MAP 1 - BEGA RIVER BASIN

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MAP 2 - TOWAMBA RIVER BASIN

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MAP 3 - TUROSS RIVER BASIN

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MAP 4 - BEGA TOWN MAP

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MAP 5 - TARRAGANDA TOWN MAP

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MAP 6 - ANGLEDALE TOWN MAP

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MAP 7 - CANDELO TOWN MAP

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MAP 8 - TATHRA AND MOGAREEKA TOWN MAP

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MAP 9 - BERMAGUI TOWN MAP

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MAP 10 - WALLAGA LAKE

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MAP 11 - BUCKAJO TOWN MAP

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MAP 12 - SPRINGVALE TOWN MAP

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MAP 13 - JELLAT JELLAT TOWN MAP

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MAP 14 - KALARU TOWN MAP

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MAP 15 - WALLAGOOT TOWN MAP

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MAP 16 - BEMBOKA TOWN MAP

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MAP 17 - MERIMBULA TOWN MAP

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MAP 18 - EDEN TOWN MAP

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MAP 19 - BOYDTOWN MAP

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MAP 20 - TOWAMBA TOWN MAP

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LIST OF REFERENCES

1. SMEC. Bega and Brogo Rivers Flood Study at Bega. s.l. : SMEC, 2014.

2. NSW State Emergency Service. NSW Bega Valley Shire Local Flood Plan. Bega Valley Shire : NSW State Emergency Service, 2007.

3. Bega Valley Shire Council. Merimbula Flood Study. Bega Valley Shire Council. [Online] 2015. [Cited: 18 April 2016.] https://extranet.cardno.com/merimbulafloodstudy/SitePages/Home.aspx.

4. —. Ben Boyd Dam - Dam Safety Emergency Plan. Bega : s.n., 2008.

5. State Water Corporation. Brogo Dam - Dam Safety Emergency Plan. 2014.

6. Aurecon. Brown Mountain Power Station Cochrane Dam - Dam Safety Emergency Plan. 2015.

7. Bega Valley Shire Council. Yellow Pinch Dam - Dam Safety Emergency Plan. 2008.

8. NSW State Emergency Service. Flood Intelligence Card - Bega North. 2015.

9. Bureau of Meteorology - NSW Flood Warning Centre. Bega Basin No 219 River System Schematic. 2011.

10. Bega Valley Shire Council. Merimbula Flood Study. Bega Valley Shire Council. [Online] 2016. [Cited: 12 August 2016.] http://www.begavalley.nsw.gov.au/cp_themes/default/page.asp?p=DOC-ZDQ-08-82-64.

11. BMT WBM Pty Ltd. Bega Valley Shire Coastal Processes and Hazard Definition Study - Volume 1 Final Report. s.l. : Prepared for Bega Valley Shire Council, 2015.

12. Risk Frontiers. An Integrated Research Assessment of the physical and social aspects of the March 2011 flash flooding in Shellharbour, Kiama and Bega Valley, NSW. s.l. : Risk Frontiers, 2013.

13. Narooma News. Bermagui hit by deluge as storms continue. Narooma News. [Online] Fairfax Regional Media, 8 March 2012. [Cited: 19 April 2016.] http://www.naroomanewsonline.com.au/story/190986/bermagui-hit-by-deluge-as-storms- continue/.

14. ABC News. Merimbula Flash Flooding. ABC News. [Online] 19 September 2014. [Cited: 19 April 2016.] http://www.abc.net.au/news/2014-09-19/more-storm/5754828.

15. Bega District News. Heavy rains, flooding on South Coast. Bega District News. [Online] 14 October 2014. [Cited: 19 April 2016.]

January 2017 Vol 2: Hazard and Risk In Bega Valley Shire Page 79 Bega Valley Shire Local Flood Plan http://www.begadistrictnews.com.au/story/2623429/heavy-rains-flooding-on-south- coast/?cs=509.

16. ABC News. NSW flooding. ABC News. [Online] 5 January 2016. [Cited: 19 April 2016.] http://www.abc.net.au/news/2016-01-05/severe-weather-warning-in-place-for-nsw-for- second-day/7067452.

17. Bega Pioneers' Museum. SOME HISTORY OF BEGA FLOODS: 1851-1978. Bega Pioneers' Museum. [Online] Word Press, 2014. [Cited: 19 April 2016.] https://pioneersmuseum.wordpress.com/old-news-images/some-history-of-bega-floods- 1851-1978/.

18. Anthony Scott. CSIRO. CSIRO. [Online] 1999. [Cited: 19 April 2016.] http://www.clw.csiro.au/publications/technical99/tr54-99.pdf. Technical Report 54/99.

19. Australian Bureau of Statistics. 2011 Census of Population and Housing. 2012.

20. Unit, NSW SES Eden and Bermagui. Advice recieved from NSW SES Eden unit members. 1 December 2016.

21. NSW SES Bega Unit. Advise provided by Local Bega NSW SES Unit Members. November 2016.

22. The Canberra Times. South coast towns Narooma, Tathra and Bermagui flooded by deluge. The Canberra Times. [Online] 14 October 2014. [Cited: 18 August 2016.] http://www.canberratimes.com.au/environment/weather/south-coast-towns-narooma- tathra-and-bermagui-flooded-by-deluge-20141014-115x6d.html.

23. Cardno. Flood Study Report - Merimbula Lake and Back Lake Flood Study. s.l. : Prepared for Bega Valley Shire Council, September 2016.

January 2017 Vol 2: Hazard and Risk In Bega Valley Shire Page 80 SES RESPONSE ARRANGEMENTS FOR BEGA VALLEY SHIRE

Volume 3 of the Bega Valley Shire Local Flood Plan

Last Update: May 2007 C-1

ANNEX C - GAUGES MONITORED BY BEGA VALLEY SES LOCAL HEADQUARTERS

AWRC Flood Classification Reading Gauge Name Type Stream No Min Mod Maj Arrangements BoM Flood Bega (North Bye) Telemeter 219900 Bega River 4.60 7.00 8.00 Warnings ‡* CBM Bega (Kanoona) Telemeter 219032 Bega River DNR Morans Crossing Telemeter 219003 Bemboka River DWR Brogo Dam Telemeter 219013 Brogo River DWR North Brogo Telemeter 219027 Brogo River DWR Angledale Telemeter 219025 Brogo River DWR Yurramie No 3 Manual 219014 Candelo Creek DWR Greenmount Rd Telemeter 219034 Candelo Creek DWR Quaama Manual 219018 Murrah River DWR Cobargo Telemeter 219016 Narira Creek DWR Upstream of Manual 219015 Nutleys Creek Bermagui Lochiel Telemeter 220003 Pambula River DWR Kameruka Manual 219019 Tantawangalo DWR Creek Towamba Telemeter 220004 Towamba River DWR Yowrie Manual 218003 Yowrie Creek DWR

Notes: 1. The Bureau of Meteorology provides flood warnings for the gauges marked with an asterisk (*). 2. The SES holds a Flood Intelligence Card for the gauges marked with a double cross (‡). 3. Manual gauges are read by local readers.

Flood Classifications Flood classifications at the Bega (North Bye) gauge are as follows: Minor 4.6 metres Moderate 7.0 metres Major 8.0 metres

Eraring Energy provides information on flows over Cochrane Dam in very severe floods.

The NSW Ambulance Station, Bega experiences inundation during Moderate and Major flood events.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan D-2

ANNEX D - DISSEMINATION OF SES FLOOD BULLETINS The SES Region Headquarters distributes SES Bulletins and other flood related information (including Flood Warnings) to the following regional outlets:

Television Stations: Location WIN TV Wollongong Prime TV Canberra Capital TEN Canberra, ACT ABC TV SBS

Radio Station Location Frequency Bega, Bermagui 810AM ABC South East Radio Bega Eden 106.3FM Power FM Nowra Bega, Eden 102.5FM Bega 100.9FM ABC National Canberra Bermagui 105.1FM Eden 107.9FM Bega 765FM, 2EC East Coast Bega Bermagui 1584AM Eden 105.5FM 2BAR Bega Bega, Bermagui 93.7FM 2EAR Moruya Bermagui 102.9FM 2SEA Eden Eden 104.7FM

Newspaper Location Bega District News Bega The Magnet Eden

Other Agencies Location Bega Valley Council Bega NSW Police Southern Region LAC Batemans Bay Monaro Police District Headquarters Queanbeyan SES Local Controller Bega Valley SES Unit Controller Bega SES Unit Controller Eden SES Unit Controller Bermagui SES Local Controller Bombala SES Local Controller Cooma-Monaro SES Southern Highlands Region Controller Goulbourn RTA District Office Bega DWR Region Hydrographer Bega

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan E-1

ANNEX E - TEMPLATE EVACUATION WARNING MESSAGE FOR [ENTER NAME OF AREA]

Evacuation Warning for [ ]

Date/Time of Issue: [ ]

Authorised By: [ ]

The Bureau of Meteorology has predicted a flood level of [ ] metres at [ ] (place) at [ ] (time). This means that the following area(s) may be inundated [ ].

It is recommended that you prepare to evacuate/for evacuation within the next [ ] hours. If you leave it later, the roads may be congested or closed.

To prepare for evacuation, you should:

• Raise belongings by placing them on tables, beds and benches. Put electrical items on top. Some items may be able to be placed in ceilings. • Gather medicines, personal and financial documents and mementos together to take with you. • Listen to radio stations [enter station] for further information and to confirm this warning. • If possible, check to see whether your neighbours need help. • Make arrangements for care of pets or companion animals.

If evacuation is necessary:

• Turn off the electricity, gas and water. • Take three days’ supply of clothes with you. • If you have a car, drive to the evacuation centre at [ ] (specify route if appropriate). • If you don’t have a car, buses will operate on normal routes. Special transport can also be provided on request if necessary, telephone [ ]. • So that you can be accounted for, it is important that you register at the evacuation centre. • After registering, you may go to the house of a friend or relative. Alternatively, accommodation will be arranged for you. • The Police will provide security for your property while you are away.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan F-1

ANNEX F - MANAGEMENT OF COASTAL EROSION / INUNDATION The Problem and the Areas at Risk

1. The coastal erosion / inundation problem in the local government area takes two forms:

a. Undercutting of the seashore, threatening the collapse of dwellings and other buildings.

b. The potential breaking through of the dunes by seawater, causing flooding and isolation of property on the landward side of the dunes.

2. The most severe problems of coastal erosion / inundation occur as a result of oceanic storm conditions associated with the passage of East Coast low-pressure systems. These storms may cause temporary sea level rises with large associated waves. The worst erosion is likely when severe weather conditions occur in conjunction with unusually high tides.

3. Storm activity is sometimes accompanied by heavy rain causing flooding in the creeks behind the sand dunes. This flooding can be exacerbated by an elevated sea level preventing the escape of floodwaters to the sea.

4. The role of the SES as the combat agency for storms does not include coastal erosion and inundation caused by astronomical high tides when severe weather is not actually developing or occurring.

5. The following areas within the Bega Valley Shire Council have been identified as areas at risk for coastal erosion:

a. Beares Beach – South Bermagui

Responsibilities for Mitigation

6. The SES is NOT responsible for controlling or conducting any physical mitigation works to protect properties or structures at risk from coastal erosion and inundation, either during or outside the period of storm activity. This includes, but is not limited to:

a. The placement of rocks or other materials on beaches or foreshore areas; and

b. The construction of temporary walls made of sandbags, geotechnical tubes or other materials.

7. Planning for and construction of any physical mitigation works required for the protection of property, whether during storm events or during normal wind and wave action (including during unusually high tides) when severe weather is not forecast or occurring, is the responsibility of local government councils.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan F-2

8. During, or in the lead up to a storm out at sea, councils are required to seek technical advice from the Engineering Services Functional Area Coordinator, under the provisions of the NSW State Displan, before constructing or allowing the construction of any unapproved physical mitigation works to protect coastal property or other structures.

9. The Department of Natural Resources (DNR) is responsible for providing the SES and councils with details of the risk of erosion along the New South Wales coastline.

Public Education

10. The State Emergency Service, in conjunction with the Bega Valley Shire Council, will conduct educational activities to ensure that people in locations potentially threatened by coastal erosion and associated flooding can understand the threat and its management. These activities will include:

a. Public meetings of residents.

b. Publicity being sought in local newspapers and over local radio stations.

c. Provision of printed material to residents.

Response Operations

11. Response operations will be initiated when the BoM issues a Severe Weather Warning for dangerous waves or storm tide (forecast on-shore waves of 5 metres or more, or storm surge of 0.5 metres or more) for the NSW South Coast, and when in the judgement of the SES Local Controller, severe storm activity occurs off the coast in the form of a large and intense low pressure system.

12. SES will:

a. Advise local council and other emergency agencies of the likelihood of coastal erosion in the council area.

b. Coordinate and conduct regular reconnaissance of areas known to be at risk of coastal erosion / inundation.

c. Coordinate the provision of warnings, information and advice to occupiers of properties at threat regarding the likely problems and the actions they should take. Local radio stations will be used along with telephone calls to caravan parks and other properties with a known coastal erosion / inundation problem. Properties most at risk may be doorknocked.

d. Coordinate actions to protect household and commercial contents (if time and resources permit) by:

• Transporting them to community halls and mini-storages.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan F-3

• Lifting household and commercial contents in situ, using casual volunteers. These actions will apply where building collapse is not likely but flooding is possible.

e. Coordinate actions to evacuate or rescue people from buildings threatened by collapse or over-floor inundation. Such people would be taken to the nearest accessible evacuation centre.

Senior police officers as defined under Section 60K of the State Emergency and Rescue Management Act may, if satisfied that there are reasonable grounds for doing so for the purpose of protecting persons from injury or death or protecting property, direct or authorise another police officer to direct the doing of certain things including shoring up a wall or premises [Section 61(1) of the State Emergency and Rescue Management Act]. Senior Police Officers should, however, obtain technical advice about what is reasonable in the circumstances from the Engineering Services Functional Area Coordinator.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan G-1

ANNEX G - GENERAL EVACUATION ARRANGEMENTS FOR THE BEGA VALLEY SHIRE COUNCIL AREA

Background 1. Evacuations will be necessary from various parts of Bega and surrounding areas because of riverine flooding,

Arrangements 2. Control. During floods evacuations will be controlled by the NSW SES. Small- scale evacuations will be controlled by the SES Local Operations Controller. Should the evacuations operations escalate beyond the capabilities of local resources control may be handed over to the Illawarra South Coast SES Region Operations Controller.

3. Conduct. Evacuations will be controlled by the SES and conducted in four phases:

a. Phase 1 - Warning.

b. Phase 2 – Withdrawal.

c. Phase 3 – Shelter.

d. Phase 4 – Return.

4. Decision to Evacuate a. The decision to evacuate. The responsibility for issuing any general evacuation order during flooding rests with the SES Local Operations Controller who exercises his/her authority in accordance with Section 22(1) of The State Emergency Service Act 1989. However, the decision to evacuate will usually be made after consultation with the Local Emergency Operations Controller and the Illawarra South Coast SES Region Operations Controller.

b. When evacuation should occur. As far as possible, evacuation will be carried out before inundation occurs.

c. Self-motivated evacuation. Some people will make their own decision to evacuate earlier and move to alternative accommodation using their own transport. These evacuees will be advised, via the media, to inform the Police or SES of their evacuation and their temporary address.

5. Evacuation triggers. The triggers for evacuation are summarised in Table 1 below.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan G-2

Location Evacuation Trigger Evacuation Route Evacuate to

CURRENTLY UNDER REVIEW

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan G-3

6. PHASE 1 - Warning a. Evacuation warnings. On the receipt of flood intelligence or other warning products indicating the possibility of flooding, the SES Local Operations Controller will consult as necessary with other emergency managers to determine the level of the threat and the need to consider evacuations. As soon as possible after the decision to evacuate is made, the SES Local Operations Controller will issue evacuation warnings to the ‘at risk’ residents, indicating what people should do before evacuating and when actually doing so.

b. Content of Evacuation Warnings. A template guide to the content of evacuation warning messages is at Annex E. These are disseminated via: • The radio and TV stations listed in Annex D. • Door-knocks by emergency service personnel. • Public address systems from emergency service vehicles. • Telephone. • Two-way radio. • SES Flood Bulletins.

7. PHASE 2 - Withdrawal a. Introduction. Withdrawal involves the actual removal of the community/individuals from dangerous or potentially dangerous areas to safer areas.

b. Movement. Evacuees are to be encouraged to move using their own transport where possible. The SES Local Operations Controller will arrange transport for those people without their own vehicles.

c. Evacuation routes. Evacuation routes are summarised in Table 1 above.

d. Animals. Assistance animals (guide dogs, hearing assistance animals, etc) will remain in the care of their owners throughout the evacuation. This includes transport and access into evacuation centres etc. Due to safety restrictions, it may not be possible to allow companion animals to accompany their owners when being transported via aircraft or flood rescue boats. Department of Primary Industries will make separate arrangements for the evacuation and care of companion animals.

e. Doorknocking. Field teams conducting doorknocks will record and report back the following information back to the Operations Centre:

• Addresses and locations of houses doorknocked and/or evacuated.

• The number of occupants.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan G-4

• Details of support required (such as transport, medical evacuation, assistance to secure house and/or property and raise or move belongings).

• Details of residents who refuse to comply with the evacuation order.

f. Refusal to evacuate. Field teams should not waste time dealing with people who are reluctant or refuse to comply with any evacuation order. These cases should be referred to the Local Emergency Management Operations Controller who will arrange for Police to ensure their evacuation.

g. Security. The NSW Police will provide security for evacuated areas.

h. Transport and storage. Transport and storage of furniture from flood threatened properties will be arranged as time and resources permit.

8. PHASE 3 - Shelter a. Evacuation centres. The usual purpose of evacuation centres is to meet the immediate needs of victims, not to provide them with accommodation. Evacuees will be advised to go to or be taken to the nearest accessible evacuation centre, which may initially be established at the direction of the SES Local Operations Controller but managed as soon as possible by the Department of Community Services. Details of evacuation centres and open assembly locations are detailed in the local Disaster Welfare Plan.

b. Action on arrival. On arrival, evacuees will be:

• registered;

• medically checked, if necessary; and

• provided with their immediate welfare needs.

c. Registration. The NSW Police will ensure that all evacuees are registered on arrival at the designated evacuation centres.

d. Animal shelter compounds. Animal shelter compounds will be set up for the domestic pets and companion animals of evacuees. These facilities will be operated by the Department of Primary Industries (DPI).

9. PHASE 4 - Return a. Once it is considered safe to do so, the SES Local Operations Controller will authorise the return of evacuees to their normal or alternative place of residence. This decision will be made in consultation with appropriate officers in regard to matters such as the electrical safety of buildings.

b. The return will be controlled by the SES Local Operations Controller and may be conducted, at his/her request, by DoCS.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan H-1

ANNEX H - ARRANGEMENTS FOR THE EVACUATION OF CARAVAN PARKS AND THE RELOCATION OF CARAVANS

General

1. The following caravan parks are flood liable: a. Sapphire Valley Caravan Park – Merimbula b. Regatta Point Holiday park – Wallaga Park c. Eden Tourist Park Advising Procedures

2. Caravan Park proprietors are encouraged to ensure that the owners and occupiers of caravans are: a. Made aware that the caravan park is flood liable by: • Handing a printed notice to occupiers taking up residence. The notice will indicate that the caravan park is liable to flooding and outline the evacuation and van relocation arrangements as detailed in this Annex. • Displaying this notice prominently in each van. b. Made aware that if they are expecting to be absent from their vans for extended periods, they must: • Provide the manager with a key; in a sealed envelope; to the van. • Provide a contact address and telephone number. • Inform the manager if a vehicle will be required to relocate the van during flood time. • Leave any mobile van in a condition allowing it to be towed in an emergency (ie: tyres inflated, jacks wound up, personal effects secured and annexes and lines for water, sewer, electricity and gas readily detachable). c. Informed when a flood is rising. At this time, occupiers will be advised to: • Ensure that they have spare batteries for their radios. • Listen to a local radio station for updated flood information. • Prepare for evacuation and van relocation. 3. The SES Local Operations Controller will ensure that the managers of caravan parks are advised of flood warnings and the details of any evacuation order. Evacuation of Occupants and Relocation of Vans

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan H-2

4. Caravan park proprietors are encouraged to install flood depth indicators and road alignment markers within their caravan parks. 5. When an evacuation order is given: a. Occupiers of non-movable vans should: • Secure their vans by tying them down to prevent flotation. • Isolate power to their vans. • Collect personal papers, medicines, a change of clothing, toiletries and bedclothes. • Lift the other contents of their vans as high as possible within the van. • Move to a designated evacuation centre if they have their own transport, or move to the caravan office to await transport. b. Where possible, vans that can be moved will be relocated by their owners. Park managers will arrange for the relocation of mobile vans whose owners do not have a vehicle. Council and SES personnel will assist if required and may be able to provide additional vehicles. Vans are to be moved to the following locations: 6. Caravan park managers are encouraged to: a. Ensure that their caravan park is capable of being evacuated within 6 hours b. Advise the SES Local Operations Controller of: • The number of people requiring transport. • Details of any medical evacuations required. • Whether additional assistance is required to effect the evacuation. c. Check that no people remain in non-removable vans that are likely to be inundated. d. Inform the SES Local Operations Controller when the evacuation of the caravan park has been completed. e. Provide the SES Local Operations Controller with a register of people that have been evacuated. Return of Occupants and Vans

7. The SES Local Operations Controller, using council resources as necessary, will advise when it is safe for the caravan parks to be re-occupied.

8. Vans will be towed back to the caravan park(s) by van owners or by vehicles and drivers arranged by the park managers. Again, Council and SES personnel will assist if available.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan I-1

ANNEX I - DETAILS OF THE DAM-FAILURE WARNING AND EVACUATION SYSTEM FOR COCHRANE DAM

Purpose of System

1. The Cochrane Dam is owned by Eraring Energy and operated by Brown Mountain Power Station. It provides water to the Brown Mountain Hydro-Electric Scheme.

2. The dam is located approx. 29km East of Nimmitabel and 17km West of Bemboka. It was constructed in and is an earth and rock fill dam with a reservoir gross capacity of 4320ML.

3. The consequences of flooding from dam failure are:

• Inundation of the Brown Mountain Power Station resulting in loss of operational functionality

• The structural integrity of the bridge on the Snowy Mountains Highway over the Bemboka River may be compromised and ongoing monitoring must occur. • Inundation of 7 buildings downstream • Inundation of all low lying areas along the Bemboka and Bega Rivers including picnic/camping areas, Bemboka sports ground, Bega Racecourse and sewerage treatment plant.

Operation and Procedures

4. When a failure or overflow occurs, the stated emergency procedures are to be carried out in a smooth, orderly and efficient manner in accordance with the Cochrane Dam DSEP

5. A radio telemetry flood warning system is installed to provide advanced warning of severe flooding at the dam.

6. When the rate of rise exceeds 0.3m/hour with storage level >RL 910.0m an automated alarm will activate a WHITE ALERT. The automated system will notify the Brown Mountain Power Station, the SES State Headquarters After Hours Duty Officer (24 hours), SES Bega Valley Local Controller and NSW Police Duty operations Inspector. The Dam Operator will continue to monitor and advise changes.

7. When the storage level reaches RL 912.0m an automated alarm will activate a AMBER ALERT. The automated system will notify the Brown Mountain Power Station, the SES State Headquarters After Hours Duty Officer (24 hours), the SES Bega Valley Local Controller and the NSW Police Duty Operations Inspector. The

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan I-2

Bega SES will contact occupants of affected residences/areas and prepare for evacuation. This will be done by:

a. Telephone

b. Doorknock. Doorknocking will be undertaken by the Police at Bemboka

8. When the storage level reaches RL 913.0m an automated alarm will activate a RED ALERT. The automated system will notify the Brown Mountain Power Station, the SES State Headquarters After Hours Duty Officer (24 hours), the SES Local Controller and the NSW Police Duty Operations Inspector.

9. The Bega SES Operations Controller will activate this plan, commence evacuation of affected residences and warnings to persons in low lying areas downstream. This will be done by the same means as for an Amber Alert.

10. Illawarra South Coast Region Headquarters will undertake notification to the media.

Prior Advice to People Potentially at Threat

1. The State Emergency Service will conduct educational activities to ensure that people in locations potentially threatened by associated flooding can understand the threat and its management. These activities will include:

a. Public meetings of residents.

b. Publicity being sought in local newspapers and over local radio stations.

c. Provision of printed material to residents.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan J-1

ANNEX J - DETAILS OF THE DAM-FAILURE WARNING AND EVACUATION SYSTEM FOR TILBA DAM Purpose of System

1. The Tilba Dam is owned and operated by Bega Valley Shire and provides the main water supply to the community of Bermagui. 2. The dam is located 3.5km south-west of Central Tilba and was constructed in 1970. The dam is clay core, earth fill embankment construction with a reservoir gross capacity of 135ML. 3. The consequences of flooding from dam failure are: • Princes Highway will be inundated at the crossing of Couria creek and the Highway • The pumping station will suffer loss of functionality • 2 properties will be inundated Operation and Procedures

4. When a failure or overflow occurs, the stated emergency contact procedures are to be carried out in a smooth, orderly and efficient manner in accordance with the Tilba Dam DSEP

Water Level Alert Defining Conditions SES Action at spillway (mAHD) Notification of support agencies May be a structural anomaly.

Monitoring areas at risk >40.8 White May be increased monitoring in downstream response to a heavy rainfall event Check operational readiness

Failure possible if storage level Warn downstream population at >41.4 Orange continues to rise or structural risk to prepare to evacuate anomaly not fixed Evacuation of downstream >42.2 Red Failure imminent or occurred populations <40.4 Green Normal Operations No action required

Table J-1: Water levels and corresponding alerts (Tilba Dam DSEP 2007)

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan J-2

5. When flood level is at 0.4m above spillway (40.8 mAHD) the Dam Operator will advise the Bega Shire Council, Operations Engineer who will activate a WHITE ALERT and issue an advice to the SES State Headquarters Comcen, who will contact the SES Illawarra South Coast Region AHDO, who will contact the SES Bega Valley Local Controller.. The Dam Operator will continue to monitor and advise changes.

6. When flood level is at 1m above spillway (41.4 mAHD) the Dam Operator will advise the Bega Shire Council, Operations Engineer who will activate an ORANGE ALERT and issue an advice to the SES State Headquarters Comcen, who will contact the SES Illawarra South Coast Region AHDO, who will contact the SES Bega Valley Local Controller. The Bega SES will initiate response operations in accordance with Section 4.7 of this plan undertake evacuation notification of properties downstream of the dam. The Dam Operator will continue to monitor and advise changes.

7. When flood level is at 1.8m above spillway (42.2 mAHD) the Dam Operator will advise the Bega Shire Council, Operations Engineer who will activate an RED ALERT and issue an advice to the SES State Headquarters Comcen, who will contact the SES Illawarra South Coast Region AHDO, who will contact the SES Bega Valley Local Controller. The Bega SES will undertake evacuation of properties downstream of the dam. Notification to the media will be undertaken through the Illawarra South Coast Region Headquarters. The Dam Operator will continue to monitor and advise changes.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan K-1

ANNEX K - DETAILS OF THE DAM-FAILURE WARNING AND EVACUATION SYSTEM FOR YELLOW PINCH DAM Purpose of System 1. The Yellow Pinch Dam is owned and operated by Bega Valley Shire and provides off creek storage for the Tantawanglo Water Supply Scheme. 2. The dam is located about 2km south of Wolumla, 10km north-west of Merimbula and 30km south of Bega. It was constructed in 1987 and is a clay core rock filled embankment with a reservoir gross capacity of 3000ML. 3. The consequences of flooding from dam failure are: • Bridges crossing the Princes Highway south of Wolumla will be under water up to 5m deep. • Reid Street bridge will be underwater by approx 1m. • The caravan park near Reid Street Bridge will be inundated. • Up to 30 residences will be inundated. Operation and Procedures 4. When a failure or overflow occurs, the stated emergency contact procedures are to be carried out in a smooth, orderly and efficient manner in accordance with the Yellow Pinch Dam DSEP

Water Level Alert Defining Conditions SES Action at spillway (mAHD) Notification of support agencies May be a structural anomaly.

Monitoring areas at risk >188.4 White May be increased monitoring in downstream response to a heavy rainfall event Check operational readiness

Failure possible if storage level Warn downstream population at >189 Orange continues to rise or structural risk to prepare to evacuate anomaly not fixed Evacuation of downstream >189.5 Red Failure imminent or occurred populations <188.4 Green Normal Operations No action required

Table K-1: Water levels and corresponding alerts (Yellow Pinch Dam DSEP 2007)

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan K-2

5. When flood level is at 0.4m above spillway (188.4 mAHD) the Dam Operator will advise the Bega Shire Council, Operations Engineer who will activate a WHITE ALERT and issue an advice to the SES State Headquarters Comcen, who will contact the SES Illawarra South Coast Region AHDO, who will contact the SES Bega Valley Local Controller.. The Dam Operator will continue to monitor and advise changes.

6. When flood level is at 1m above spillway (189 mAHD the Dam Operator will advise the Bega Shire Council, Operations Engineer who will activate an ORANGE ALERT and issue an advice to the SES State Headquarters Comcen, who will contact the SES Illawarra South Coast Region AHDO, who will contact the SES Bega Valley Local Controller. The Bega SES will initiate response operations in accordance with Section 4.7 of this plan undertake evacuation notification of properties downstream of the dam. The Dam Operator will continue to monitor and advise changes. 7. When flood level is at 1.5m above spillway (189.5 mAHD) the Dam Operator will advise the Bega Shire Council, Operations Engineer who will activate an RED ALERT and issue an advice to the SES State Headquarters Comcen, who will contact the SES Illawarra South Coast Region AHDO, who will contact the SES Bega Valley Local Controller. The Bega SES will undertake evacuation of properties downstream of the dam. Notification to the media will be undertaken through the Illawarra South Coast Region Headquarters. The Dam Operator will continue to monitor and advise changes.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan L-1

ANNEX L - DETAILS OF THE DAM-FAILURE WARNING AND EVACUATION SYSTEM FOR BEN BOYD DAM Purpose of System

1. The Ben Boyd Dam is owned and operated by Bega Valley Shire and provides off stream storage for the Tantawanglo Water Supply Scheme.

2. The dam is located approx. 8km south-west of Eden. It was constructed in 1978 and is a clay core earth filled embankment with a reservoir gross capacity of 910ML.

3. The consequences of flooding from dam failure are:

• Flooding of the Princes Highway North and South of Boyd Town • 2 residences will be inundated immediately downstream from the dam. • The Caravan Park and a third house at Nullica bay

Operation and Procedures

4. When a failure or overflow occurs, the stated emergency contact procedures are to be carried out in a smooth, orderly and efficient manner in accordance with the Ben Boyd Dam DSEP

Water Level Alert Defining Conditions SES Action at spillway (mAHD) Notification of support agencies May be a structural anomaly.

Monitoring areas at risk >70.9 White May be increased monitoring in downstream response to a heavy rainfall event Check operational readiness

Failure possible if storage level Warn downstream population at >71.9 Orange continues to rise or structural risk to prepare to evacuate anomaly not fixed Evacuation of downstream >72.3 Red Failure imminent or occurred populations <70.9 Green Normal Operations No action required

Table L-1: Water levels and corresponding alerts (Ben Boyd Dam DSEP 2007)

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan L-2

5. When flood level is at 0.9m above spillway (70.9 mAHD) the Dam Operator will advise the Bega Shire Council, Operations Engineer who will activate a WHITE ALERT and issue an advice to the SES State Headquarters Comcen, who will contact the SES Illawarra South Coast Region AHDO, who will contact the SES Bega Valley Local Controller.. The Dam Operator will continue to monitor and advise changes.

6. When flood level is at 1.9m above spillway (71.9 mAHD) the Dam Operator will advise the Bega Shire Council, Operations Engineer who will activate an ORANGE ALERT and issue an advice to the SES State Headquarters Comcen, who will contact the SES Illawarra South Coast Region AHDO, who will contact the SES Bega Valley Local Controller. The Bega SES will initiate response operations in accordance with Section 4.7 of this plan undertake evacuation notification of properties downstream of the dam. The Dam Operator will continue to monitor and advise changes.

7. When flood level is at 2.3m above spillway (72.3 mAHD) the Dam Operator will advise the Bega Shire Council, Operations Engineer who will activate an RED ALERT and issue an advice to the SES State Headquarters Comcen, who will contact the SES Illawarra South Coast Region AHDO, who will contact the SES Bega Valley Local Controller. The Bega SES will undertake evacuation of properties downstream of the dam. Notification to the media will be undertaken through the Illawarra South Coast Region Headquarters. The Dam Operator will continue to monitor and advise changes.

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan M-1

ANNEX M - FLOOD INTELLIGENCE COLLECTION SHEET Date: Unit: Observer: Contact No: Time Location Description

Example Time Location Description 0900 Smith St, Karodan Six houses in lower end of Smith St flooded to one metre over-floor 0900 Thomas St, Karodan Thomas Street beginning to flood. Water coming across from Regal Park 1100 Benson Hwy Benson Hwy not flooded at Fords Bridge • Complete sheet by recording the time of observation, location of observation and flood effects observed • Remember it is just as important to record the observation of effects that are not occurring as it is to record the effects that are occurring • Return completed sheet to Planning Officer of the OMT. Planning section to collate sheets and forward to Region Headquarters

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 1 - BEGA VALLEY SHIRE COUNCIL AREA

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 2 - BEGA VALLEY RIVER CATCHMENT

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 3 - TOWAMBA RIVER CATCHMENT

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 4 - BEGA (NORTH)

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 5 - BEGA (SOUTH)

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 6 - BERMAGUI

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 7 - EDEN

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 8 - KALARU

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 9 - JELLAT JELLAT

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 10 - MERIMBULA NORTH

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 11 - MERIMBULA

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 12 - MERIMBULA SOUTH – PAMBULA

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 13 - TARRAGANDA

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan

MAP 14 - TATHRA VILLAGE

Bega Valley Shire Local Flood Plan, May 2007, Sub-Plan of Bega Valley Shire Local Disaster Plan