-
LIVERPOOL PLAINS SHIRE LOCAL FLOOD PLAN
A SUB-PLAN OF THE LIVERPOOL PLAINS SHIRE LOCAL DISASTER PLAN (DISPLAN)
Robert Stewart Frank Turner Chair, Local Emergency Liverpool Plains Shire SES Local Management Committee Controller
OCTOBER 2008 EDITION TO BE REVIEWED NO LATER THAN SEPTEMBER 2013 ii
CONTENTS
DISTRIBUTION LIST ...... iv
AMENDMENT LIST ...... v
LIST OF ABBREVIATIONS ...... vi
GLOSSARY ...... vii
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 1.6 Cross-Border Assistance Arrangements ...... 11 PART 2 - PREPAREDNESS ...... 12 2.1 Maintenance of This Plan ...... 12 2.2 Floodplain Management ...... 12 2.3 Development of Flood Intelligence ...... 12 2.4 Development of Warning Systems ...... 13 2.5 Public Education ...... 13 2.6 Training ...... 13 2.7 Resources ...... 14 PART 3 - RESPONSE ...... 15 3.1 Control ...... 15 3.2 Operations Centres ...... 15 3.3 Operational Management ...... 15 3.4 Liaison ...... 15 3.5 Communications ...... 15 3.6 Start of Response Operations ...... 16 3.7 Flood Intelligence ...... 17 3.8 Preliminary Deployments ...... 18 3.9 Warnings ...... 18 3.10 Information ...... 20 3.11 Road Control...... 21 3.12 Traffic Control...... 21 3.13 Flood Rescue ...... 21 3.14 Evacuations ...... 22 3.15 Registration ...... 22 3.16 Management of Evacuees’ Pets ...... 22 3.17 Essential Services ...... 22 3.18 Logistics ...... 22 3.19 Aircraft Management ...... 22 3.20 Resupply of Isolated Towns and Villages ...... 23 3.21 Resupply of Isolated Properties ...... 24 3.22 Assistance for Animals ...... 24 3.23 Stranded Travellers ...... 24 3.24 All Clear ...... 25 PART 4 - RECOVERY ...... 26 4.1 Welfare ...... 26 4.2 Recovery Coordination ...... 26 4.3 Arrangements for Debriefs / After Action Reviews ...... 26 ANNEX A - THE FLOOD THREAT ...... A-1
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
iii
General ...... A-1 Landforms and River System(s) ...... A-1 Storage Dams...... A-2 Weather Systems and Flooding ...... A-2 Characteristics of Flooding ...... A-2 Flood History ...... A-2 ANNEX B - EFFECTS OF FLOODING ON THE COMMUNITY ...... B-1 Community Profile ...... B-1 Specific Risk Areas ...... B-1 ANNEX C - GAUGES MONITORED BY THE LIVERPOOL PLAINS SHIRE SES LOCAL HEADQUARTERS ...... C-1
ANNEX D - DISSEMINATION OF SES FLOOD BULLETINS ...... D-1
ANNEX E - TEMPLATE EVACUATION WARNING MESSAGE FOR QUIRINDI ...... E-1
ANNEX F - EVACUATION ARRANGEMENTS FOR THE LIVERPOOL PLAINS SHIRE COUNCIL AREA ...... F-1 Background...... F-1 Arrangements ...... F-1 Decision to Evacuate ...... F-2 Phase 1 – Warning ...... F-3 Phase 2 – Withdrawal ...... F-3 Phase 3 – Shelter ...... F-4 Phase 4 – Return ...... F-5 ANNEX G - ARRANGEMENTS FOR THE EVACUATION OF CARAVAN PARKS AND THE RELOCATION OF CARAVANS ...... G-1 General ...... G-1 Advising Procedures ...... G-1 Evacuation of Occupants and Relocation of Vans ...... G-2 Return of Occupants and Vans ...... G-3 ANNEX H - DETAILS OF THE DAM FAILURE WARNING AND EVACUATION SYSTEM FOR COEYPOLLY CK DAM ...... H-- 1 - General ...... H-- 1 - Purpose of System ...... H-- 1 - The Alerting Mechanism ...... H-- 1 - Operation and Procedures ...... H-- 2 - Activation of Dam Safety Emergency Plan ...... H-- 2 - MAP 1 - RIVER BASIN ...... I
MAP 2 - COUNCIL AREA ...... I
MAP 3 - QUIRINDI ...... I
MAP 4 - WALLABADAH ...... II
MAP 5 - WERRIS CREEK ...... III
MAP 6 - WILLOW TREE ...... IV
MAP 7 - 1955 FLOOD EXTENT AT QUIRINDI ...... V
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
iv
DISTRIBUTION LIST
Liverpool Plains Shire SES Local Controller ...... 1 Liverpool Plains Shire SES Unit Controller ...... 1 Liverpool Plains Shire SES Unit ...... 1 Tambar Springs SES Unit Controller ...... 1 Namoi SES Region Headquarters ...... 1 NSW SES State Headquarters ...... 1 Liverpool Plains Shire Council Local Emergency Operations Controller ...... 1 NSW Police, Oxley Local Area Command ...... 1 Liverpool Plains Shire Council Local Emergency Management Committee Members ...... 4 Liverpool Plains Shire Council Local Emergency Management Officer ...... 1 Liverpool Plains Shire Council Local Emergency Operations Centre ...... 1 Liverpool Plains Shire Council Mayor ...... 1 Liverpool Plains Shire Council General Manager ...... 1 Liverpool Plains Shire Council Technical Services Department ...... 1 NSW Fire Brigades, Quirindi, Werris Creek ...... 1 Rural Fire Service, Liverpool Range Zone ...... 1 Ambulance Service of NSW, Quirindi ...... 1 Volunteer Rescue Association, Quirindi Rescue Squad ...... 1 Country Energy ...... 1 Telstra ...... 1 Department of Primary Industries, (Agriculture) Tamworth ...... 1 Department of Community Services, Northern ...... 1 Roads and Traffic Authority, Northern Region Office ...... 1 Evacuation Centres ...... 1 Hospitals ...... 1 Schools...... 1 Council Libraries ...... 1 Spare ...... 1
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
v
AMENDMENT LIST
Suggestions for amendments to this plan should be forwarded to:
The Local Controller Liverpool Plains Shire State Emergency Service C/- 908 Willow Tree Road, BRAEFIELD NSW 2339 Email: [email protected] Amendments promulgated in the amendments list below have been entered in this plan.
Amendment List Date Amendment Date Number Entered By
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
vi
LIST OF ABBREVIATIONS
The following abbreviations have been used in this plan:
AEP Annual Exceedance Probability AHD Australian Height Datum ARI Average Recurrence Interval (Years) ALERT Automated Local Evaluation in Real Time AWRC Australian Water Resources Council BoM Australian Government Bureau of Meteorology CBD Central Business District DCF Dam Crest Flood DSC Dams Safety Committee DISPLAN Disaster Plan DNR Department of Natural Resources DoCS Department of Community Services DSEP Dam Safety Emergency Plan DVR Disaster Victim Registration GIS Geographic Information System GRN Government Radio Network HF High Frequency IFF Imminent Failure Flood PMF Probable Maximum Flood PMR Private Mobile Radio PMP Probable Maximum Precipitations PSTN Public Switched Telephone Network RTA Roads and Traffic Authority SES State Emergency Service SEWS Standard Emergency Warning Signal UHF Ultra High Frequency VHF Very High Frequency VRA Volunteer Rescue Association WICEN Wireless Institute Civil Emergency Network
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
vii
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.
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.
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.
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.
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.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
viii
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 liable 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.
Flood Plan . A plan that deals specifically with flooding and is a sub-plan of a Disaster Plan. Flood plans describe agreed roles, responsibilities, functions, actions and management arrangements for the conduct of flood operations and for preparing for them.
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.
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.
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 BoM 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.
Geographic Information System (GIS) . A computerised database for the capture, storage, analysis and display of locationally defined information. commonly, a GIS portrays a portion of the earth’s surface in the form of a map on which this information is overlaid.
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.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
ix
Minor flooding . Flooding which 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.
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 10 4 to 10 7 (once in 10,000 to 10,000,000 years).
Runoff . The amount of rainfall which ends up as streamflow, 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.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
1
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 Liverpool Plains Shire Council area. It covers operations for all levels of flooding within 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 and the State Emergency Service Act 1989. It has been accepted by the Namoi SES Region Controller and the Liverpool Plains Shire Council Local Emergency Management Committee.
1.3 Area Covered By The Plan
1.3.1 The area covered by the plan is the Liverpool Plains Council area which includes the township of Quirindi and the communities of Wallabadah, Willow Tree, Werris Creek, Old Warrah, Ardglen, Spring Ridge, Pine Ridge and Caroona, plus a number of rural properties.
1.3.2 The area covers the upper reaches of the Mooki River catchment including:
a. The Mooki River downstream to Caroona
b. Quirindi Creek
c. Jacob and Joseph Creek
d. Quipolly Creek and Coeypolly Dam
e. Kangaroo Creek
f. Spring Creek
g. Big Jack's and Little Jack’s Creeks
h. Borambil Creek
i. Yarramanbah Creek
j. Coomoo Coomoo Creek
k. Werries Creek- Werris Creek
l. Anstey Creek Currabubula
m. Currabubula Gully
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
2
n. Chilcotts Creek
o. Warrah Creek
p. MacDonalds Creek
q. Phillips Creek
r. Omaleah Creek
1.3.3 The council area and its principal rivers and creeks are shown in Map 1.
1.3.4 The council area is in the Namoi SES Region and for emergency management purposes is part of the Peel Emergency Management District.
1.4 Description Of Flooding And Its Effects
1.4.1 The nature of flooding in the Liverpool Plains Shire Council area is described in Annex A.
1.4.2 The effects of flooding on the community are detailed in Annex B.
1.5 Responsibilities
1.5.1 The general responsibilities of emergency service organisations and supporting services (functional areas) are listed in the Local Disaster Plan (DISPLAN). Some specific responsibilities are expanded upon in the following paragraphs. The extent of their implementation will depend on the severity of the flooding.
1.5.2 Liverpool Plains Shire SES Local Controller. The Liverpool Plains Shire SES Local Controller is responsible for dealing with floods as detailed in the State Flood Plan, and will:
a. Control flood operations. This includes:
••• Directing the activities of the SES units operating within the council area.
••• Coordinating the activities of supporting agencies and organisations and ensuring that liaison is established with them.
b. Maintain a Local Headquarters at Davies Street, QUIRINDI NSW 2343 in accordance with the SES Controllers’ Handbook and the SES Operations Manual.
c. Ensure that SES members are trained to undertake operations in accordance with current policy as laid down in the SES Controllers’ Handbook and the SES Operations Manual.
d. Develop and operate a flood intelligence system.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
3
e. Coordinate the development and operation of a flood warning service for the community. f. Participate in floodplain risk management initiatives organised by the Liverpool Plains Shire Council. g. Coordinate a public education program h. Ensure that the currency of this plan is maintained. i. Identify and monitor people and/or communities at risk of flooding. j. Direct the conduct of flood rescue operations. k. Direct the evacuation of people and/or communities. l. Provide immediate welfare support for evacuated people. m. Coordinate the provision of emergency food and medical supplies to isolated people and/or communities. n. Provide an information service in relation to:
••• Flood heights and flood behaviour.
••• Road conditions and closures.
••• Advice on methods of limiting property damage.
••• Confirmation of evacuation warnings. 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.
••• Moving farm animals. p. Assist the Liverpool Plains Shire Council to organise temporary repairs or improvements to levees. q. Arrange for support (for example, accommodation and meals) for emergency service organisation members and volunteers assisting them. r. If SES resources are available, assist with emergency fodder supply operations conducted by Department of Primary Industries. s. If SES resources are available, assist the NSW Police, RTA and Council with road closure and traffic control operations.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
4
t. Exercise financial delegations relating to the use of emergency orders as laid down in the SES Controllers’ Handbook.
u. Coordinate the collection of flood intelligence.
v. Submit Situation Reports to the Namoi SES 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.
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.
y. Ensure that appropriate After Action Reviews are held after floods.
z. Assist in the establishment and deliberations of the Recovery Coordinating Committee.
1.5.3 Liverpool Plains Shire SES Unit Members:
a. Carry out flood response tasks. These may include:
••• The management of the Liverpool Plains Shire SES Local Headquarters Operations Centres.
••• Gathering flood intelligence.
••• Flood rescue.
••• Evacuation.
••• Providing immediate welfare for evacuated people.
••• Delivery of warnings and information.
••• Resupply.
••• Sandbagging.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
5
••• Moving farm animals.
••• Assisting in repairing or improving levees.
••• Assisting with road closure and traffic control operations.
••• Assisting with emergency fodder supply operations.
b. Assist with preparedness activities.
c. Undertake training in flood operations.
1.5.4 Tambar Springs SES Unit Controller:
a. Manage flood operations in the Cox’s Creek catchment in the western part of the Liverpool Plains Shire area.
1.5.5 Ambulance Service of NSW, Quirindi:
a. Assist with the evacuation of elderly and/or infirm people.
b. Deploy ambulance resources to areas likely to become isolated, in consultation with the Liverpool Plains Shire SES Local Controller.
1.5.6 Australian Government Bureau of Meteorology (BoM):
a. Provide Flood Watches for the Namoi River Basin.
b. Provide severe weather warnings and severe thunderstorm warnings when flash flooding is likely to occur.
1.5.7 Australian Rail Track Corporation
a. Close and re-open railway lines as necessary and advise the Liverpool Plains Shire SES Local Controller.
b. Assist SES in the identification of rail infrastructure at risk of flooding and the consequences of infrastructure disruption.
1.5.8 Caravan Park Proprietor(s), Quirindi Caravan Park:
a. Prepare a Flood Management Plan for the Caravan Park.
b. Ensure that owners and occupiers of caravans are aware that the caravan park is flood liable and what they must do to facilitate evacuation and van relocation when flooding occurs.
c. Ensure that occupiers are informed of flood warnings and flood watches.
d. Coordinate the evacuation of people and the relocation of moveable vans when floods are rising and their return when flood waters have subsided.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
6
e. Inform the 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 Childcare Centres and Preschools:
a. The following childcare centres are to be contacted by the SES in the event of possible flooding:
••• Quirindi Childcare Centre, East St, Quirindi
••• Quirindi Occasional Childcare, The Pavilion, Henry St, Quirindi
b. When notified the child care centres should:
••• Liaise with the SES and arrange for the early release of children whose travel arrangements are likely to be disrupted by flooding and/or road closures.
••• Assist with coordinating the evacuation of preschools and childcare centres
1.5.10 Citizens’ Radio Emergency Service Teams (CREST) / Wireless Institute Civil Emergency Network (WICEN):
a. Provide communications assistance.
1.5.11 Country Energy:
a. Provide advice to the Liverpool Plains Shire SES Local Controller of any need to disconnect power supplies or of any timetable for reconnection.
b. Clear or make safe any hazard caused by power lines or electrical reticulation equipment.
c. Assess the necessity for and implement the disconnection of customers’ electrical installations where these may present a hazard.
d. Advise the public with regard to electrical hazards during flooding and to the availability or otherwise of the electricity supply.
e. Inspect, test and reconnect customers’ electrical installations as conditions allow.
f. Assist the SES to identify infrastructure at risk of flooding for incorporation into planning and intelligence.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
7
1.5.12 Department of Community Services (DoCS), Northern NSW Regional Office:
a. Manage the evacuation centres at the Quirindi High School Multipurpose Hall in Abbot St Quirindi and/or The Anglican Church Hall in Henry St Quirindi
b. Provide clothing, accommodation, food and welfare services for flood affected people, including stranded travellers.
1.5.13 Department of Natural Resources:
a. Provide technical advice to the SES regarding hydrological information for streams and rivers in the Namoi River Basin.
1.5.14 Department of Primary Industries, Tamworth Office:
a. Coordinate the supply and delivery of emergency fodder.
b. Provide advice on dealing with dead and injured farm animals.
c. Provide financial, welfare and damage assessment assistance to flood affected farm people.
d. Coordinate the operation of animal shelter compound, facilitate for the domestic pets and companion animals of evacuees.
1.5.15 Liverpool Plains Shire Council:
a. Maintain a plant and equipment resource list for the council area.
b. Contribute to the development and implementation of a public education program.
c. At the request of the Local SES Controller, deploy personnel and resources for flood related activities.
d. Close and reopen council roads (and other roads nominated by agreement with the RTA) and advise the Liverpool Plains Shire SES Local Controller, the Police and people who telephone the council for road information.
e. Provide filled sandbags to urban and village areas in which flooding is expected.
f. Assist with the removal of caravans from caravan parks.
g. Provide back-up radio communications.
h. In the event of evacuations, assist with making facilities available for the domestic pets and companion animals of evacuees.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
8
i. Provide for the management of health hazards associated with flooding. This includes maintaining water supply and sewerage systems and removing debris and waste.
j. Ensure premises are fit and safe for reoccupation and assess any need for demolition.
k. Establish and maintain floodplain committees and ensure that key agencies are represented on such committees.
l. Provide flood studies and floodplain risk management studies to the SES.
m. Maintain and operate the Dam Failure Warning System for Coeypolly Dam.
n. Maintain a Dam Safety Emergency Plan and provide copies to the SES.
o. Provide information on the consequences of dam failure to the SES for incorporation into planning and flood intelligence.
p. Establish and chair a vetting committee for assessing business resupply orders
1.5.16 Liverpool Plains Shire Council Local Emergency Operations Controller:
a. Monitor flood operations.
b. Coordinate support to the Liverpool Plains Shire SES Local Controller if requested to do so.
1.5.17 Liverpool Plains Shire Council Local Emergency Management Officer:
a. Provide executive support to the Local Emergency Operations Controller in accordance with the Liverpool Plains Shire Council Local Disaster Plan.
b. At the request of the Liverpool Plains Shire SES Local Controller, advise appropriate agencies and officers of the activation of this plan.
1.5.18 NSW Fire Brigades, Quirindi, Werris Creek:
a. Assist with the delivery of evacuation warnings.
b. Assist with the conduct of evacuations.
c. Provide equipment for pumping flood water out of buildings and from low-lying areas.
d. Assist with cleanup operations, including the hosing out of flood affected properties.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
9
e. Deploy fire resources to areas likely to become isolated, in consultation with the Liverpool Plains Shire SES Local Controller.
1.5.19 NSW Police Force, Oxley LAC:
a. Assist with the delivery of evacuation warnings.
b. Assist with the conduct of evacuation operations.
c. Conduct road and traffic control operations in conjunction with council and/or RTA.
d. Coordinate the registration of all evacuees.
e. Secure evacuated areas. 1.5.20 Nungaroo Land Council: a. Act as the point of contact between the SES and the Walhollow aboriginal community in Caroona and:
••• Inform the Liverpool Plains Shire SES Local Controller about flood conditions and response needs.
••• Disseminate flood information, including flood and evacuation warnings, to the Walhollow aboriginal community. 1.5.21 Private Companies & Other Organisations: a. Assist with the provision of:
••• Bus transport and drivers for evacuation, resupply or commuting purposes. Howards Bus and Coach Murrurundi. Perrets Coach Service Werris Creek. Upper Hunter Home and Community Care.
••• Sand for sandbagging. Liverpool Plains Shire Council and or Callaghans Contracting
••• Space for evacuation centres. Quirindi High School Hall, Quirindi Anglican Church Hall
1.5.22 Quirindi Rural Flood Warning Network:
a. Provide flood information to the Liverpool Plains Shire SES Local Controller.
b. Distribute flood warnings and flood information provided by the Liverpool Plains Shire SES Local Controller.
1.5.23 Rail Corporation New South Wales (RailCorp), CountryLink
a. Arrange trains for evacuations, commuting and or resupply purposes.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
10
1.5.24 Roads and Traffic Authority (RTA), Northern Region Office:
a. Close and reopen the New England Highway when affected by flood waters and advise the Liverpool Plains Shire SES Local Controller.
1.5.25 Rural Fire Service (RFS), Liverpool Range Zone:
a. Provide personnel in rural areas and villages to:
••• inform the Liverpool Plains Shire SES 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 with the delivery of evacuation warnings.
d. Assist 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 cleanup operations, including the hosing of flood affected properties.
i. Deploy fire resources as required if access is expected to be lost.
1.5.26 School Administration Offices (including Catholic Education Office, Department of Education & Training and Private Schools):
a. Liaise with the SES and where appropriate arrange for the early release of students whose travel arrangements are likely to be disrupted by flooding and/or road closures.
b. Pass information to school bus drivers/companies and/or other school principals on expected or actual impacts of flooding.
c. Assist with coordinating the evacuation of the following schools:
••• Eastside Day Care Centre
••• Quirindi Preschool
••• Pavillion Activity Centre
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
11
••• Willow Tree Public school
d. Provide space in schools for evacuation centres where necessary.
1.5.27 Service and Sporting Clubs, (Apex, Rotary and Lions):
a. Lifting and/or moving household furniture and commercial stock.
b. Sandbagging.
c. Relocation of caravans.
1.5.28 Telstra:
a. Maintain telephone services.
b. Repair and restore telephone facilities damaged by flooding.
c. Provide additional telecommunications support for the Liverpool Plains Shire SES Local and/or Unit Headquarters as required.
d. Assist the SES to identify infrastructure at risk of flooding for incorporation into planning and intelligence.
1.5.29 Transport Services Coordinator:
a. Arrange transport facilities for evacuations and/or commuting purposes.
1.5.30 Volunteer Rescue Association (VRA), Quirindi:
a. Assist the Liverpool Plains Shire SES Local Controller with flood operations, where equipment and training are suitable.
b. Assist with the supply and distribution of sandbags.
1.6 Cross-Border Assistance Arrangements
1.6.1 A local cross-border mutual assistance arrangement exists in which the Liverpool Plains Shire SES and the Murrurundi SES Unit will deploy resources to support each other.
1.6.2 Operations involving the Cox’s Creek catchment, in the western portion of the Liverpool Plains Shire Council area, will be conducted by the Tambar Springs SES Unit.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
12
PART 2 - PREPAREDNESS
2.1 Maintenance of This Plan
2.1.1 The Liverpool Plains Shire SES 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 as notified to the controller by relevant agencies.
••• When new information from flood studies become available.
••• When flood control or mitigation works are implemented or altered and notified to the controller.
••• When there are changes that alter agreed plan arrangements.
2.1.2 In any event, the plan is to be reviewed no less frequently than every five years.
2.2 Floodplain Management
2.2.1 The Liverpool Plains Shire SES Local Controller will ensure that the SES:
a. Participates in floodplain risk management committee activities when those committees are formed and the meeting agenda is forwarded to the controller who will attend if available.
b. Consults with the flood prone community about the nature of the flood problem and its management.
c. Informs the Namoi SES Region Headquarters of involvement in floodplain risk management activities in order that they may assist by providing expert advice and/or a representative to attend when the Local Controller is unavailable.
2.3 Development of Flood Intelligence
2.3.1 Flood intelligence describes flood behaviour and its effects on the community.
2.3.2 The SES will develop and maintain a flood intelligence system.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
13
2.4 Development of Warning Systems
2.4.1 Quirindi and the area to the east and south of Quirindi, high in the catchment, are subject to flash flooding. Formal prediction of flood heights is not possible given the short lead times that can occur in river rises. The Liverpool Plains Shire SES can have has less than one hour’s notice of impending flooding.
2.4.2 The SES will establish and/or maintain a 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.
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
a. The Liverpool Plains Shire SES Local Controller, with the assistance of the Liverpool Plains Shire Council, the Namoi SES Region Headquarters and 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. Talks and displays orientated to community organisations and schools.
c. Publicity given to this plan and to flood-orientated SES activities through local media outlets, including articles in local newspapers about the flood threat and appropriate responses.
2.6 Training
2.6.1 Throughout this document there are references to functions that must be carried out by the members of the Liverpool Plains Shire SES. The Liverpool Plains Shire SES Local Controller is responsible for ensuring that the members are:
a. Familiar with the contents of this plan.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
14
b. Trained in the skills necessary to carry out the tasks allocated to the SES.
2.7 Resources
2.7.1 The Liverpool Plains Shire SES Local Controller is responsible for maintaining the condition and state of readiness of SES equipment and the Liverpool Plains Shire SES Local Headquarters.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
15
PART 3 - RESPONSE
3.1 Control
3.1.1 The SES is the designated Combat Agency for floods and is responsible for the control of flood operations.
3.1.2 The SES is responsible for the coordination of other agencies and organisations to assist in flood tasks
3.2 Operations Centres
3.2.1 The Liverpool Plains Shire SES maintains an Operations Centre at Davies Street, QUIRINDI NSW 2343 (adjacent to the old livestock saleyards).
3.2.2 The Liverpool Plains Shire Council Emergency Operations Centre is located at the Shire Council Chamber, Station Street Quirindi NSW 2343.
3.3 Operational Management
3.3.1 By local agreement, flood operations in the Cox's Creek catchment in the west of the Council area which includes the communities of Bundella and Premer, are managed by the Tambar Springs SES Unit Controller.
3.4 Liaison
3.4.1 At the request of the Liverpool Plains Shire SES Local Controller, each agency with responsibilities identified in this plan will provide liaison (including a liaison officer where necessary) to the Liverpool Plains Shire SES Operations Centre.
3.4.2 Liaison officers are to:
a. have the authority to deploy the resources of their parent organisations at the request of the Liverpool Plains Shire SES Local Controller,
b. advise the Liverpool Plains Shire SES Local Controller on resource availability for their service, and
c. be able to provide communications to their own organisations. If this is not possible the Controller is to be advised.
3.5 Communications
3.5.1 The primary means of office-to-office communications is by telephone, Email and facsimile.
3.5.2 The primary means of communication to and between deployed SES resources is by the Namoi SES Region Private Mobile Radio (PMR) network.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
16
3.5.3 All other organisations will provide communications as necessary to their deployed field teams.
3.5.4 Back-up communications are provided as follows:
a. The Liverpool Plains Shire Council operates a VHF radio network, which provides communications to council mobile units.
b. RFS Brigades operates on PMR (UHF), GRN and UHF-CB radio networks, which provides coverage of the Liverpool Plains Shire Council area. Coverage is also provided over the RFS Liverpool Ranges Zone.
c. The Quirindi VRA Rescue Squad operates a UHF-CB network on Channel 5.
3.6 Start of Response Operations
3.6.1 This plan is always active to ensure that preparedness actions detailed in this plan are completed.
3.6.2 Response operation will begin:
a. On receipt of a Bureau of Meteorology Preliminary Flood Warning, Flood Warning, Flood Watch or a Severe Weather Warning.
b. On receipt of the first alarm from the Coeypolly Dam Failure Warning System.
c. When other evidence leads to an expectation of flooding within the council area.
3.6.3 Contact with the Bureau of Meteorology to discuss the development of flood warnings will normally be through the Namoi SES Region Headquarters.
3.6.4 The following persons and organisations will be advised of the activation of the plan regardless of the location and severity of the flooding anticipated:
a. Liverpool Plains Shire Council Local Emergency Operations Controller (for transmission to the NSW Police Local Area Command Headquarters).
b. Liverpool Plains Shire SES Unit members.
c. Tambar Springs Unit Controller.
d. Namoi SES Region Headquarters.
e. Liverpool Plains Shire Council Local Emergency Management Officer (for transmission to appropriate council officers and departments).
f. Liverpool Plains Shire Council Mayor (normally via LEMO).
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
17
3.6.5 Other agencies listed in this plan will be advised by the LEMO on the request of the Liverpool Plains Shire SES Local Controller and as appropriate to the location and nature of the threat.
3.6.6 On receipt of an alarm from the Coeypolly Dam Failure Warning System, the Werris Creek Police Sector Headquarters and the Liverpool Plains Shire Council Works Overseer at Werris Creek will also be advised (normally via LEMO).
3.7 Flood Intelligence
3.7.1 Sources of flood intelligence during times of flooding are:
a. Bureau of Meteorology .
The Bureau provides:
••• Flood Watches, which give an early appreciation of developing meteorological situations that could lead to flooding. These are normally provided on a whole-catchment basis for the Namoi River.
• Weather Forecasts warning of potential storm activity including severe weather warnings and severe thunderstorm warnings
b. Namoi SES Region Headquarters .
The Region Headquarters provides information on flooding and its consequences, including those in nearby council areas.
c. Liverpool Plains Shire Council .
The Liverpool Plains Shire Council provides gauge readings for the council gauging network and information on road conditions.
d. Coeypolly Dam-Failure Warning System.
The Liverpool Plains Shire Council has developed a warning system to advise residents below Coeypolly Dam whenever the dam is overtopped during extreme flooding on Quipolly Creek. The system caters for the low probability of failure of the dam through overtopping. A description of the warning system is included at Annex F.
e. Department of Natural Resources, Tamworth Office.
This office advises flow rates and rates of rise for the Mooki River at Caroona, Quipolly Creek at Greenacres, Big Jacks Creek at Warrah Ridge, Bundella Creek at Bundella, Warrah Creek at Warrah and Yarraman Creek near Spring Ridge. Daily river reports containing information on gauge heights and river flows are available from the DNR website: http://waterinfo.nsw.gov.au/drr/index.shtml
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
18
f. Gauge Monitoring System.
The SES Local Controller monitors a number of gauges on the Creeks flowing through the Council area including the gauge installed at Coeypolly Dam as part of the Dam Failure Warning System. These gauges are listed in Annex C.
g. Flood watch networks.
The SES Local Controller obtains information on heavy rainfalls and/or high creek flows from a network of community members (property owners, Police, Council crews and neighbouring SES Controllers) on the Upper Mooki catchment (Quirindi, Jacob and Joseph creek system). Regular reports on flood levels and effects are provided
h. Active Reconnaissance.
The SES monitors the following problem areas:
••• rainfall and creek rises in upper reaches of the Quirindi Creek system;
••• rainfall and creek rises in the upper reaches of Borambil Creek;
••• runoff around the Quirindi Racecourse and Cemetery, which provides an indicator of ground saturation and possible flooding in Quirindi; and
••• Whittaker Street Bridge in Quirindi.
3.8 Preliminary Deployments
3.8.1 When flooding is expected to be severe enough to cut road access to towns, within towns and/or rural communities, the Liverpool Plains Shire SES Local Controller will ensure that resources are in place for the distribution of foodstuffs and medical supplies to the areas that could become isolated.
3.8.2 When access to both sides of Quirindi is expected to cut at the Whittaker Street Bridge in Quirindi, the Liverpool Plains Shire SES Local Controller will advise appropriate agencies so that resources (including sandbags, fire fighting appliances, ambulances, etc.) can be deployed to both sides of the bridge. This will ensure that operational capability is maintained during the period that access is cut.
3.9 Warnings
3.9.1 Warning services operate according to the following arrangements:
a. The Liverpool Plains Shire SES Local Headquarters:
••• Provides advice to the Namoi SES Region Headquarters on current and expected impacts of flooding.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
19
••• Coordinates the delivery of warnings to the community by door- knocking, telephone, mobile public address systems, emergency vehicle sirens and two-way radio.
••• Issues Flood Advices for the area covered by this plan.
b. The Namoi SES Region Headquarters issues warning information in the form of SES Region Flood Bulletins to:
••• Media organisations and agencies listed in Annex D.
••• all emergency services,
••• neighbouring councils,
••• Tourist Information Centres,
••• NRMA, and
••• New England Radio Watch.
3.9.2 Warnings are provided as follows:
a. 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 Liverpool Plains Shire SES Local Controller will advise the Namoi SES Region Headquarters which will issue SES Livestock and Equipment Warnings.
b. Bureau of Meteorology Flood Watches.
If there are signs of impending floods, Flood Watches will be incorporated in SES Flood Bulletins issued by the Namoi SES Region Headquarters.
c. Bureau of Meteorology Flood Warnings .
NO Flood Warnings are issued for the locations detailed in Annex C. On receipt of local advice that indicates flooding may occur, the Liverpool Plains Shire SES Local Controller will:
••• Advise the Liverpool Plains Shire Council and the Liverpool Plains Shire Local Emergency Operations Controller.
••• Provide the Namoi SES Region Headquarters with information for inclusion in SES Flood Bulletins on the estimated impacts of flooding at the predicted heights.
d. SES Local Flood Advices.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
20
When there are indications that flooding may occur in the area covered by this plan, the Liverpool Plains Shire SES Local Controller will prepare SES Local Flood Advices for distribution to:
••• Liverpool Plains Shire Council,
••• Quirindi and Willow Tree Police Sector Headquarters,
••• Other emergency services, and
••• Namoi SES Region Headquarters for inclusion in SES Flood Bulletins.
e. Evacuation Warnings.
The first evacuation warnings issued in the Liverpool Plains Shire Council area can be expected when the Quirindi and/or Jacob and Joseph creeks are running approximately ½ metre below the banks and continue to rise upstream. A template guide to the content of evacuation warning messages is at Annex E.
f. Dam-Failure Warnings.
Special arrangements apply in the case of severe flooding that may have the potential to cause the failure of Coeypolly Ck Dam. Details of these arrangements are described in Annex H.
g. Standard Emergency Warning Signal (SEWS).
This signal may be played over radio and television stations to alert communities to Evacuation Warnings, Special Warnings or Dam-Failure Warnings. Approval to use the signal will be obtained by the Liverpool Plains Shire SES Local Headquarters from the Namoi SES Region Headquarters.
3.10 Information
3.10.1 The Namoi SES Region Headquarters issues SES Flood Bulletins to media outlets and agencies on behalf of all SES units in the Region. SES Flood Bulletins contain the following information relating to all council areas in which flooding is occurring:
a. Current warnings, together with indications of the likely impact of flooding at any predicted heights.
b. Current flood heights and flood behaviour.
c. Details of conditions and closures of main roads.
d. Advice on safety matters and means of protecting property.
e. SES Local Flood Advices for Liverpool Plains Shire.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
21
3.10.2The Liverpool Plains Shire SES Local Headquarters provides a “phone-in” information service for the community in relation to current warnings, river heights, flood behaviour, road conditions and closures of local and main roads and advice on safety matters and means of protecting property.
3.10.3 Collation and dissemination of road information is actioned as follows:
a. The Liverpool Plains Shire SES Local Controller provides road status reports for main roads in the council area to the Namoi SES Region Headquarters Road Information Cell and to the Oxley Police Local Area Command Headquarters. The Road Information Cell obtains information from the Police, Council and the RTA.
b. The Namoi SES Region Headquarters distributes information on main roads to SES units, media outlets and agencies as part of SES Flood Bulletins.
c. The Road Information Cell also provides a “phone-in” service to the public.
3.10.4 The Liverpool Plains Shire SES Local Controller is to ensure that the Namoi SES Region Controller is regularly briefed on the progress of operations and on future resource needs.
3.11 Road Control
3.11.1 A number of roads within the council area are affected by flooding. Details are provided in Annex B.
3.11.2 The Roads and Traffic Authority (RTA) closes and reopens the New England Highway.
3.11.3 The Liverpool Plains Shire Council closes and re-opens its own roads.
3.11.4 The NSW Police has the authority to close and re-open roads but will normally only do so (if the council or the RTA has not already acted) if public safety requires such action.
3.11.5 When resources permit, the SES assists Council or the Police by erecting road closure signs and barriers.
3.12 Traffic Control.
3.12.1 In the event of major flooding, the Liverpool Plains Shire SES Local 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).
3.13 Flood Rescue
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
22
3.13.1 The Liverpool Plains Shire SES Local Controller is responsible for the coordination of flood rescue.
3.13.2 This may be completed with the assistance of the local VRA Squad if requested to do so by the Liverpool Plains Shire SES Local Controller.
3.13.3 Flood rescues, may be carried out by accredited units using high clearance vehicles, flood boats and (under some circumstances) helicopters.
3.13.4 Additional flood boats and crews can be requested through the Namoi SES Region Headquarters.
3.14 Evacuations
3.14.1 Evacuation arrangements are detailed in Annex F.
3.15 Registration
3.15.1 NSW Police will ensure that all evacuees are registered on arrival at evacuation centres and details of registrations are sent to the Police District Headquarters by the quickest means available.
3.16 Management of Evacuees’ Pets
3.16.1 In the event of a large-scale evacuation of any community within Liverpool Plains Shire then animal shelter compound facilities will be set up for domestic animals and companion animals. These facilities will be operated by council.
3.16.2 Assistance animals are to accompany and/or remain in the care of their owners at all times. This includes transport and access into evacuation centres etc.
3.17 Essential Services
3.17.1 The Liverpool Plains Shire SES Local Controller will ensure that the providers of essential services (electricity, water, sewerage, medical and public health) are kept advised of the flood situation. Essential service providers must keep the Liverpool Plains Shire SES Local Controller abreast of their status and ongoing ability to provide those services.
3.18 Logistics
3.18.1 The Liverpool Plains Shire SES Local Headquarters maintains a small stock of sandbags, and back-up supplies are available through the Namoi SES Region Headquarters. A motorised sandbag-filling machine is located in both Quirindi and Werris Creek. Alternatively, local concrete trucks may be used.
3.18.2 A stockpile of 5 m 3 of sand is held at the Liverpool Plains Shire Council depot.
3.19 Aircraft Management
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
23
3.19.1 Aircraft can be used for a variety of purposes during flood operations including evacuation, rescue, resupply, reconnaissance and emergency travel.
3.19.2 Air support operations will be conducted under the control of the SES Region Headquarters, which may allocate aircraft to units if applicable. The SES Local Controller may task aircraft allocated by the Region Headquarters for flood operations within the Council area.
3.19.3 Helicopter Landing Points. Suitable landing points are located at:
a. Quirindi District Health Service (medical Helicopter ops have priority)
b. Corbould St Oval
c. Quirindi Sportsground
d. Liverpool Plains SES HQ (TBA)
3.19.4 Airport. The Quirindi airport is located about 18km to the south-west of Quirindi. Access to the airport may be disrupted by high flows in the Borambil Creek. The airport is capable of handling Caribou, Dash 8, and Hercules.
3.20 Resupply of Isolated Towns and Villages
3.20.1 The SES is responsible for the coordination of the resupply of isolated communities. If flood predictions indicate that areas are likely to become isolated, the Liverpool Plains Shire SES local Controller should advise businesses (normally through the Liverpool Plains Shire Council) that they should stock up.
3.20.2 When isolation occurs, storekeepers will be expected to place orders on 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 SES.
3.20.3 Where practicable the Liverpool Plains Shire SES Local Controller will arrange for the delivery from normal suppliers of essential foodstuffs, fuels or urgent medical supplies required by an isolated property or community. This may be done using high clearance vehicles, floodboats or, on occasions, aircraft.
3.20.4 The Liverpool Plains Shire Council will establish and chair a vetting committee to ensure that only essentials are ordered and that the business requesting the supplies is not using the flood as a means of restocking free of charge.
3.20.5 Where supplies are not available within the council area, the Liverpool Plains Shire SES Local Controller may request them through the Namoi SES Region Headquarters. The Region Headquarters will usually arrange for them to be delivered to the Liverpool Plains Shire SES Local Controller for further distribution within the council area.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
24
3.20.6 The SES is prepared to deliver mail to isolated communities but may not be able to do so according to normal Australia Post timetables, and will assist hospitals with resupply of linen and other consumables.
3.21 Resupply of Isolated Properties
3.21.1 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. Property owners may call their suppliers direct or place their orders with the Liverpool Plains Shire SES, through DoCS, or through their own social networks.
3.21.2 The principles to be applied when planning for the resupply of isolated properties are:
a. The SES will coordinate resupply and establish a schedule.
b. DoCS will liaise with the SES concerning property holders who place orders with them. They will include people in dire circumstances who receive resupply at no cost. DoCS has a well developed system for this situation, including a standard list of approved resupply items.
c. If a property holder seeks resupply from the SES and claims to be, or is considered to be, in dire circumstances, he/she is to be referred to DoCS.
d. Local suppliers will liaise with the SES regarding delivery of resupply items to the designated loading point.
e. Local suppliers are responsible for packaging resupply items for delivery.
3.22 Assistance for Animals
3.22.1 Matters relating to the welfare of livestock, companion animals and wildlife (including feeding and rescue) are to be referred to Department of Primary Industries.
3.22.2 Requests for emergency supply and/or delivery of fodder to stranded livestock, or for livestock rescue, are to be passed to Department of Primary Industries.
3.23 Stranded Travellers
3.23.1 Flood waters can strand travellers at Spring Ridge, Caroona, Pine Ridge, Warrah, and at many high points in between towns and villages where creek crossings can close suddenly, stranding a traveller between two creeks. Travellers seeking assistance will be referred to DOCS for the arrangement of temporary accommodation.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
25
3.24 All Clear
3.24.1 When the danger to life and property has passed, the Liverpool Plains Shire SES Local Controller will issue an ‘All Clear’ message signifying that response operations have been completed. This message will also advise details of arrangements for evacuated residents to return to their homes or indicate what longer-term accommodation arrangements have been made for those unable to do so.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
26
PART 4 - RECOVERY
4.1 Welfare
4.1.1 The Department of Community Services will provide for the long-term welfare of people who have been evacuated.
4.2 Recovery Coordination
4.2.1 The Liverpool Plains Shire SES Local Controller will ensure that planning for long-term recovery operations begins at the earliest opportunity. This is to be done by briefing the chairman of the Liverpool Plains Shire Council Local Emergency Management Committee on the details of the flooding and assisting in the establishment of a Recovery Coordinating Committee.
4.2.2 The Recovery Coordinating Committee is to prepare an outline plan for recovery operations and be prepared to recommend how such operations would best be controlled and coordinated.
4.3 Arrangements for Debriefs / After Action Reviews
4.3.1 As soon as possible after flooding has abated, the Liverpool Plains Shire SES Local Controller will advise participating organisations of details of response operation after action review arrangements.
4.3.2 The Liverpool Plains Shire SES 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 Liverpool Plains Shire Council Local Emergency Management Committee.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
A-1
ANNEX A - THE FLOOD THREAT General
1. The area covered by this plan is subject to flooding from a large number of creeks, most of which are tributaries of the Mooki River. In their upper reaches, they have steep gradients as they drop from Liverpool Ranges. Here, floods usually rise and fall quickly, warning times are very short and most are classified as ‘flash flooding’.
2. As the streams leave the high ground, flow rates generally drop. In many cases the streams lose definition on the plains and flooding results in considerable overland flow and extensive areas are inundated to the west of Quirindi.
Landforms and River System(s)
3. The water courses in the Liverpool Plains Shire Council area are described below:
a. Big Jacks Creek This creek is one of the upper tributaries of the Mooki River. It descends onto the plain country between Pine Ridge and the Middle Range Hills where it loses definition. Overland flow in this area has given rise to a long history of land inundation, together with saturation and pavement failures in a Council road crossing the plain.
b. Borambil Creek This is another headwater of the Mooki which completely loses definition in the flood plain west of Quirindi. In this locality overbank flows from Warrah Creek during high freshes augment the waterlogging caused by Borambil Creek.
c. Quirindi Creek This creek causes most of the flooding in the township of Quirindi, although Jacob and Joseph Creek contributes to the problem as it joins Quirindi Creek. Quirindi Creek is also responsible for flooding of some access roads into Quirindi.
d. Quipolly Creek Quipolly Creek flows through a well defined valley in ranges to the north east of Quirindi. It opens out to a wide flood plain at Quipolly, where it is crossed by the Northern Railway Line and Quirindi to Tamworth Road. At Lower Quipolly, the floodplain narrows to a wide valley before reaching another floodplain where it joins the Quirindi Creek.
e. Yarraman Creek This creek rises in the highest portion of the Liverpool Range descends very sharply and then traverses a long length of highly productive crop land in the area of Spring Ridge. About 10 kilometres south of Lake Goran and some 35 kilometres below its source it crosses the Werris Creek to Binnaway branch railway and the Quirindi to Premer Road. South of these crossings creek flows and runoff from adjacent cropped areas have caused extensive gully and sheets erosion and channel siltation. North of these crossings the creek completely loses definition and floodwaters flow
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
A-2
overland to cause extensive local inundation and waterlogging plus disruption to local roads as it moves towards Lake Goran and Native Dog Gully.
f. Coomoo Coomoo Creek This is similar to Yarraman Creek, although on a smaller scale. It rises on the same area and runs to Lake Goran causing similar problems. This is particularly the case where it is crossed by the Premer Road and the rail line.
Storage Dams
Coeypolly Dam
4. Coeypolly Dam is located on Quipolly Creek approximately 12 kilometres south-east Werris Creek. It was constructed in 1955 to provide a water supply to Werris Creek and is owned by the Liverpool Plains Shire Council. Studies conducted in 1991 indicated that the dam is not capable of safely passing the Probable Maximum Flood. Although the Imminent Failure Flood is estimated to be only about 55 percent of the Probable Maximum Flood, its probability of occurrence is low. The Annual Exceedence Probability (AEP) is in the order of 1:1,000
Weather Systems and Flooding
5. Some summer floods are the result of short-duration convective thunderstorms. However, most flooding tends to come from periods of prolonged steady to heavy rain caused by southward-moving depressions occurring in the summer and autumn months. Flooding can also occur at other times of the year from the passage of frontal systems.
Characteristics of Flooding
6. Quirindi is subject to flash flooding from Quirindi and Jacob and Joseph creeks.
Flood History
7. The flood of record occurred in February 1955.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
B-1
ANNEX B - EFFECTS OF FLOODING ON THE COMMUNITY
Community Profile
Census Description Liverpool Werris Wallabadah Willow Quirindi Plains LGA Creek Tree
Total Persons 7541 2608 1489
Total Dwellings 2889 1029 572
Total persons aged 65 years 1387 607 323 and over
Total persons aged below 15 1516 487 264 years
Total persons with a need for assistance (profound / severe 424 192 138 disability)
Total persons of indigenous 714 307 194 origin
Total persons using Internet 1318 416 201
Single parent families 315 139 68
Persons living alone 826 331 196
Total persons who do not 6 5 0 speak English well
Total persons who lived at a 2180 811 426 different address 5 years ago
Households without vehicles 237 100 82
Total persons residing in caravans, cabins or 45 30 0 houseboats
Table B-1: Census of Housing and Population data (2006) Specific Risk Areas
Quirindi
1. Quirindi is located off the New England Highway, 354 km north of Sydney and 63 km south-west of Tamworth. It is situated on a plateau in the Liverpool Ranges, 390 m above sea level and at the southern edge of the Liverpool Plains.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
B-2
2. Quirindi is a service centre to the surrounding agricultural and pastoral area where crops such as sorghum, wheat, cotton, sunflowers, lucerne and corn are grown. The town's population is currently about 2,925 (2006 Census).
3. Quirindi is subject to flash flooding. Quirindi Creek causes most of the flooding in Quirindi, although Jacob and Joseph Creek contribute to the problem as it joins Quirindi Creek. Quirindi Creek is also responsible for flooding of some access roads into Quirindi. A large area of Quirindi is subject to flooding but only a comparatively small number of properties are significantly affected. Floods rise and recede quickly and no more than twenty five or so residences may have to be evacuated for a limited period. There are a number of sporting fields located on flood liable land which may also need to be evacuated depending on the time of day and the day of the week.
4. Flooding in Quirindi is high velocity, fast rising and dangerous.
5. The area affected by the 1955 flood (by far the highest on record) is shown in Map 7. The main business area was not flooded and some of the flood liable area has been reserved from development. However, some 25 to 30 homes and a few commercial properties might be flooded during a flood of this magnitude even though inundation would probably not last for very long depending on the duration of rainfall over the catchment area.
6. Consequences of Flooding. The possible effects that may occur at various heights in relation to the Whittaker Street Bridge gauge are shown in the following table. Use this information as a guide to the possible effects of flooding in Quirindi. The information provided is based on estimates of flood behaviour and particular effects may occur at heights different from those indicated here. They may also occur at slightly different heights in different floods.
Height Remarks 3.60 The Gurton Street Bridge closes to normal traffic. No access to the Gurton/Fortune Street residential area. Approximately eight houses become isolated. Alternative access is available during an emergency via high clearance 4WD vehicles or the main northern railway bridge.
4.00 All road access to the Gurton/Fortune Street residential area is lost. It is still possible to gain access via the railway bridge.
5.20 The Quirindi Creek breaks its banks about 100 metres upstream of the Whittaker Street Bridge and closes the approaches. This has the effect of cutting Quirindi into two. The only access between both sides of town is via flood boat or the main northern railway bridge. NB: Arrangements and deployment of emergency service elements on both sides of the bridge have to be finalised before this occurs.
The Willow Tree road (Quirindi - Willow Tree, MR72) is closed at the Whittaker street Bridge. There is no road access to Willow Tree but alternative routes may be available via Wallabadah Road (MR126) or to the Gunnedah road via Taylors Lane.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
B-3
Height Remarks
5.50 The Quirindi Creek flows west and crosses the intersection of Taylor Street and the east end of Fortune Street isolating one house in Taylor Street.
6.20 Peak height - 21 July 1998. All of the above effects occurred. The community of Quirindi was warned of possible evacuations but none were required. The Quirindi Creek broke out at 5.5 metres and travelled in a south-westerly direction towards Pollock Street, across Pryor Street and drained into the Jacob and Joseph (J&J) Creek between Pryor and Henry Streets. The Polo Ground was inundated and water crossed and closed Pollock and Pryor Streets. Floodwater threatened the Quirindi Caravan Park in Rose Street.
Inundation of the Quirindi Caravan Park may o ccur at any time after this height and force its evacuation. The park accommodates about four on- site vans hooked up to the sewerage system, about six tourist vans and two cabins. It takes about an hour to warn and prepare the evacuation of the park to the railway station in Station Street or the TAFE College campus in Henry Street.
Access to about 20 houses in Pryor, Smith and Allen Streets and the Quirindi Bowling Club may be lost at any stage from this height.
6.30 It is estimated that floodwater fr om the Quirindi Creek may inundate Rose Street, the eastern end of Fortune Street and Taylor Street.
The Quirindi ck upstream of the Henry Street Bridge may flow west along Henry Street. Some houses in low-lying areas may experience minor inundation. Above this level the Quirindi creek may flow over the sporting grounds in a westerly direction towards the caravan park and the residences along Rose St
8.00-12.00 The peak height in February 1955 was somewhere between 8 to 12 metres. In this event, about 20-30 houses in Quirindi and several commercial premises in Henry Street (the area from Young Street to Whittaker Street and beyond) were flooded. The majority of the houses that were flooded were in the area between Quirindi Creek and J&J Creek. Both creeks were in full flood at the same time. Table B-2: Consequences of flooding in Quirindi
Quirindi Airport
7. The Quirindi Airport can become isolated by flooding from Borambil Creek.
Downstream of Coeypolly Dam
8. Coeypolly Dam is located on Quipolly Creek approximately 12 kilometres south east of Werris Creek. It was constructed in 1955 to provide a water supply
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
B-4
to Werris Creek and is owned by the Liverpool Plains Shire Council. Studies conducted in 1991 indicated that the dam is not capable of safely passing the Probable Maximum Flood. Although the Imminent Failure Flood is estimated to be only about 55 percent of the Probable Maximum Flood, its probability of occurrence is low. The Annual Exceedence Probability (AEP) is in the order of 1:1,000.
9. A flood approaching the Imminent Failure Flood would probably affect 8 properties with water above floor levels. Of these only 3 would be likely to have more than 0.5 metres of water above floor levels. If the dam then failed, a further 8 properties would be expected to be inundated or partially inundated with depths varying from 1 metre to over 1.7 metres.
10. Of the properties which might be affected by dam failure, 4 have warning times less than 1 hour including ‘Kooringa’ which has a warning time of about 24 minutes. These warning times relate to the time from the start of the dam failure. It must be noted that this would follow a period of severe flooding and would not therefore be without some preliminary warning.
11. The following table provides details of the threat posed to properties below the dam site. All heights refer to the datum point adopted for the original survey of the dam. ‘Time to Flood’ represents the time difference between the start of dam failure and the flood water reaching the floor level of the particular dwelling.
12. Although it is possible for individual properties to require evacuation in a number of locations, the three main areas of concern are:
Quirindi Township:
a. The Caravan Park will be evacuated to the TAFE College Grounds, Quirindi OR to the Railway Square adjacent to the railway station.
Downstream of Coeypolly Dam:
b. In the event that the Coeypolly Dam Failure Warning System indicates that the dam may be overtopped and in danger of failing, residents of downstream properties make their own arrangements to evacuate to higher ground. Most will move in to Werris Creek or Quirindi. Refer also to Annex H detailing the Coeypolly Dam Failure Warning and Evacuation System.
c. As soon as possible after this occurs, the SES Local Controller and the Local Emergency Operations Controller will ensure that the area is checked to see if any persons require assistance and arrange for further evacuations into Werris Creek or Quirindi if necessary.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
B-5
Willow Tree area: d. Because this area is at the top of the catchment, there is unlikely to be much warning, if any, of the need for evacuations. In this area, evacuations will be managed by the Willow Tree Police Sector Commander (acting as agent for the Liverpool Plains SES Local Controller) with the assistance of the NSW Rural Fire Service (Willow Tree).
Wallabadah Area e. This area is at the top of the Quirindi Creek catchment and flooding could occur immediately downstream of the New England Highway in Wallabadah on the low lying areas immediately adjacent to Quirindi Creek. One of these areas adjacent to the First Fleet Park is popular for overnight camping by travellers. During periods of heavy rainfall the Liverpool Plains SES Controller will arrange to check this area and warn any at risk campers. The Police or NSW Rural Fire Service may be requested to assist in this regard.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
6
PROPERTIES DOWNSTREAM OF COEYPOLLY DAM
CATEGORY PROPERTY FLOOR IMMINENT DAM LEVEL FAILURE FAILURE TIME TO TIME FLOOR (METRES) FLOOD WATER FLOOD WATER FLOOD INUNDATED REMARKS LEVEL LEVEL (APPROX) (METRES) (METRES) Not Flooded Hazeldene 45.07 43.07 44.32 Aberglen 43.12 38.45 40.05
Kandiwarra 42.58 36.25 37.89
Rosehill 35.47 33.55 35.17
Beaudell 29.49 26.71 28.28
Aminya 27.13 23.95 25.44
Hazelmere 23.50 17.40 18.76
Flooded Prior to Willawah 60.33 63.31 66.23 Imminent Failure Flood Level Woodlands 52.10 54.39 56.50
Rail Dwelling 47.95 49.76 51.24
Glenara 40.69 41.06 42.54
Mountain View 37.70 37.79 39.43
Shannon 37.38 37.79 39.43
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
7
CATEGORY PROPERTY FLOOR IMMINENT DAM LEVEL FAILURE FAILURE TIME TO TIME FLOOR (METRES) FLOOD WATER FLOOD WATER FLOOD INUNDATED REMARKS LEVEL LEVEL (APPROX) (METRES) (METRES) Rocky View 31.00 31.32 32.96
Killarney 27.13 27.27 28.85
Flooded as Result Tremaine 81.94 77.93 83.39 45 mins 45 mins of Dam Failure Korringa 70.71 69.95 74.03 24 mins 1 hr 35 mins
Abbotsford 71.09 68.74 72.65 42 mins 30 mins
Rocky Hall 61.65 59.65 62.30 40 mins 1 hr
Gedhurst 38.15 37.79 39.43 1 hr 36 mins 2 hrs 5 mins
The Levee 25.41 25.37 26.90 2 hrs 9 mins 2 hrs 50 mins Kiaora 17.96 17.94 19.32 2 hrs 28 mins 3 hrs
Banborough Stud 14.99 14.35 15.60 2 hrs 55 mins 1 hr 35 mins
NOTE: This information has been extracted from the February 1991 Dam Break Study conducted by NSW Public Works for the Parry Shire Council.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
B-1
Rural Areas
13. A small number of properties may become isolated for periods of 12 to 24 hours.
Road Closures
14. A number of roads within the Council area are affected by flooding. They include the following:
a. Main Road 129 – Quirindi to Premer
b. Main Road 126 – Quirindi to Wallabadah
c. Shire Road 1 – Quirindi to Pine Ridge
d. Main Road 72 – Quirindi to Gunnedah
e. State Highway 15 – New England Highway
f. Main Road 129 (Quirindi – Coonabarabran via Premer) between Quirindi and Premer at the:
g. floodways near “Duryvale” and “Eykamps”,
h. low-level crossing over Yarraman Creek;
i. low-level crossing over Coomoo Coomoo Creek; and
j. causeways at Tamarang Siding, Bundella Creek and Coxs Creek.
k. Main Road 126 (Quirindi – Wallabah) between Quirindi and Wallabadah at the causeway near Castle Mountain.
l. Main Road 130 (Quirindi – Tamworth via Werris Creek) between Quirindi and Werris Creek at:
m. the Whittaker Street Bridge in Quirindi, and
n. Quipolly Creek north of Taylors Lane.
o. Shire Road 1 (Quirindi – Bundella via Pine Ridge) between Quirindi and Pine Ridge at the:
p. low-lying area east of the Quirindi Aerodrome;
q. Mooki River at Pine Ridge; and
r. low-lying area east of the Warrah Creek crossing.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
B-2
s. Kamilaroi Highway (Highway 37 - Willow Tree to Gunnedah via Quirindi) between Quirindi and Gunnedah at: t. Dury Bridge; u. South of the Mooki River Bridge south of Breeza. v. New England Highway (Highway 15) between Willow Tree and Wallabadah by the Quirindi Creek at Wallabadah and the Kangaroo Creek south of Wallabadah.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
C-1
ANNEX C - GAUGES MONITORED BY THE LIVERPOOL PLAINS SHIRE SES LOCAL HEADQUARTERS
Gauge Name Type AWRC No Stream Flood Classification Reading Arrangements Owner Min Mod Maj Coeypolly No. 2 Dam 10308 Quipolly Creek (Quipolly) Automatic Rocky Hall 10332 Quipolly Creek (Quipolly) - Spring Park 10353 Quirindi Creek (Jacob & Jos eph) Automatic Rowntrees Lane 10334 Quirindi Creek (Jacob & Joseph) Manual, LHQ Reader Henry St Bridge 10178 Quirindi Creek (Jacob & Joseph) Manual, LHQ Reader Auburn Vale 10010 Quirindi Creek (Kangaroo) Manual Eastern Grange 10131 Quirindi Creek (Kangaroo) Manual Spring Field 10352 Quirindi Creek (Quirindi) - Basin Creek 10016 Quirindi Creek (Quirindi) Manual Wallabadah 10405 Quirindi Creek (Quirindi) Manual White Rock 10420 Quirindi Creek (Quirindi) Manu al Henry St Bridge 10179 Quirindi Creek (Quirindi) Manual, LHQ Reader Whittaker Street Bridge 10421 Quirindi Creek (Quirindi) Manual, LHQ Reader Dry Creek 10122 Quirindi Creek (Quirindi) Manual Hams Bridge 10174 Mooki River (Borambil) Manual, Willow Tree Police Mirrabooka 10239 Mooki River (Borambil) Manual Warrah Ridge Road 10412 Mooki River (Borambil) Manual, LHQ Reader Werribon 10416 Mooki River (Warrah) Manual Coonamara 10103 Mooki River (Warrah) Manual Bindaree 10024 Mooki River (Warrah) Manual Myall Park 10256 Mooki River (Phillips) Manual The Court 10376 Mooki River (Omaleah Black) Manual Bindaree 10024 Mooki River (Mooki) Manual
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
C-2
Caroona 419034 Mooki River (Mooki) Automatic Yarraman North 10439 Mooki River (Yarraman) Manual Glencona 10158 Mooki River (Bundella) Manual
Notes:
1. The Bureau of Meteorology provides flood warnings for the gauges marked with an asterisk (*). 2. SES Local Flood Advices are provided for the gauges marked with a single cross ( †). 3. The SES holds a Flood Intelligence Card for the gauges marked with a double cross ( ‡).
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
D-1
ANNEX D - DISSEMINATION OF SES FLOOD BULLETINS
The Namoi SES Region Headquarters distributes SES Flood Bulletins and other flood related information (including Flood Warnings) to the following regional media outlets:
Television Stations:
Station Location Prime TV Tamworth NBN TV Tamworth ABC Tamworth NRTV Tamworth
Radio Stations:
Station Location Frequency Modulation 2TM Tamworth 1287 AM Tamworth FM Tamworth (co-located with 2TM) 92.9 FM 2NU (ABC) Tamworth 648 AM 2MO Gunnedah 1080 AM 2GGG Gunnedah (co-located with 2MO) 97.5 FM 2VM Moree 1530 AM 2CR (ABC) Orange 549 AM 2AD Armidale 1134 AM 2DU Dubbo 1251 AM 2WEB Bourke 585 AM MAX FM Narrabri 91.3 FM 2NZ Inverell 1188 AM
Newspapers:
Name Location Northern Daily Leader Tamworth Namoi Valley Independent Gunnedah
Other Agencies:
• All SES units and Emergency Services in the Namoi area. • Councils in the Namoi area. • Members of Parliament in the Namoi area. • Tourist Information Centres. • NRMA.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
E-1
ANNEX E - TEMPLATE EVACUATION WARNING MESSAGE FOR QUIRINDI
Evacuation Warning for [ ]
Date/Time of Issue: [ ]
Authorised By: [ ]
The Liverpool Plains Shire SES Controller advises that flooding of this area is imminent.
It is recommended that you prepare to evacuate within the next [30] minutes. If you leave it later, the roads may be congested or closed and your house may be inundated with very fast flowing and dangerous floodwater.
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 local radio stations such as ABC New England 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 Quirindi High School or the Anglican Church Hall.[strike out one not open] • If you don’t have a car, buses will operate as required 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.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
E-2
• 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.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
F-1
ANNEX F - EVACUATION ARRANGEMENTS FOR THE LIVERPOOL PLAINS SHIRE COUNCIL AREA
Background
1. A number of individual properties throughout the area covered by this plan will require evacuation during flooding. In addition to these, there are three main areas of concern:
a. houses and properties along watercourses in and around Quirindi,
b. properties located downstream of Coeypolly Dam, and
c. the Willow Tree area.
2. Quirindi . Quirindi is subject to flash flooding. Quirindi Creek causes most of the flooding in Quirindi, although Jacob and Joseph Creek contribute to the problem as it joins Quirindi Creek. A large area of Quirindi is subject to flooding but only a comparatively small number of properties are significantly affected. Floods rise and recede quickly and no more than twenty five or so residences may have to be evacuated for a limited period. Flooding in Quirindi is high velocity, fast rising and dangerous. The area affected by the 1955 flood (by far the highest on record) is shown in Map 4. In this event, the main business area was not flooded and most of the flood liable area has been reserved from development. However, some 25 to 30 homes and a few commercial properties might be flooded during a flood higher than the 1955 event even though inundation would probably not last for very long.
3. Downstream of Coeypolly Dam . In the event that the Coeypolly Dam Failure Warning System indicates that the dam may be overtopped and in danger of failing, residents of downstream properties after being alerted are to make their own arrangements to evacuate to higher ground. The majority will move into Werris Creek or Quirindi.
4. Willow Tree Area . This area is at the top of the catchment and there is unlikely to be much warning, if any. Flooding in the township will most likely occur as a result of overflowing gullies and stormwater drains.
Arrangements
5. Control. During floods evacuations will be controlled by the NSW SES. Small-scale evacuations will be controlled by the Liverpool Plains Shire SES Local Controller. Should the evacuation operations escalate beyond the capabilities of local resources, control may be handed over to the Namoi SES Region Controller.
6. Conduct. Evacuations will be controlled by the SES and conducted in four phases:
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
F-2
a. Phase 1 - Warning. Issued when Gauge at Quirindi creek crossing on Pollock’s Lane reads 3.5M and continues to rise. This gauge is normally manned constantly by a member of the LPSC and readings are transmitted to the SES LPP LHQ at 15 minute intervals.
b. Phase 2 – Withdrawal. Residents are advised to prepare for flooding if the stream level at Pollock’s lane continues to rise over the 4.0M height. At this time an evacuation centre is made operational and advised to expect evacuees.
c. Phase 3 – Shelter. Quirindi High School Multi Purpose Hall.
d. Phase 4 – Return.
7. Tasks. Caravan Park warned of situation. Businesses in Henry St advised of situation.
Decision to Evacuate
8. The decision to evacuate. The responsibility for issuing any general evacuation order during flooding rests with the Liverpool Plains Shire SES Local 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 Namoi SES Region Controller.
9. When evacuation should occur. As far as possible, evacuation will be carried out before inundation occurs. This is not always possible to achieve in Quirindi and Willow Tree due to the very short warning time available.
a. Quirindi. As a guide, the Liverpool Plain Shire SES will warn the ‘at risk’ residents of Quirindi when the water level is approximately 0.5 metres below the bank of Quirindi Creek at Millner Parade and water levels continue to rise upstream.
b. Residents Downstream of Coeypolly Dam. In the event that the Coeypolly Dam Failure Warning System indicates that the dam may be overtopped and in danger of failing, residents of downstream properties are to make their own arrangements to evacuate to higher ground. The majority of these people will move into Quirindi or Werris Creek. The SES and Police will provide assistance to evacuate where practicable.
10. 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.
11. Evacuation triggers. Several houses in Gurton, Fortune, Andrew, Pollock, Pryor, Smith, Rose, Taylor and Allen streets; the Quirindi Caravan Park and the Quirindi Bowling Club may be inundated when the water level reaches or exceeds 6.0 metres at the Whittaker Street Bridge gauge. Evacuation of these properties will have to be considered if there is evidence to suggest that this
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
F-3
height is going to be reached or exceeded. It should be noted that access and egress routes to Gurton, Fortune and Andrew streets can be lost when the Gurton Street Bridge is closed at about 3.6 metres on the Whittaker Street Bridge gauge. Access is available to portion of this area via the main northern railway bridge over Quirindi ck.
Phase 1 – Warning
12. Evacuation warnings. At the appropriate gauge height at Pollock’s lane the Liverpool Plains Shire SES Local Controller will consult as necessary 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 Liverpool Plains Shire SES Local Controller will issue evacuation warnings to the ‘at risk’ residents, indicating what people should do before evacuating and when actually doing so.
13. Content of Evacuation Warnings. A template guide to the content of evacuation warning messages is at Annex E. These are disseminated via:
• Sirens and Public address systems from emergency service vehicles.
• Door-knocks by emergency service personnel. Are usually not carried out due to the very short warning time available.
• Telephone advice to businesses in the affected area may be given if time and resources permit.
• Two-way radio.
• UHF-CB radio on Channel 5. Simplex by SES radio operators using pre formatted script.
• The radio and TV stations listed in Annex D
Phase 2 – Withdrawal
14. Introduction. Withdrawal involves the actual removal of the community/individuals from dangerous or potentially dangerous areas to safer areas.
15. Movement. Evacuees are to be moved using their own transport where possible. The Liverpool Plains Shire SES Local Controller will arrange transport for those people without their own vehicles.
16. Evacuation routes. Access and egress routes to Gurton, Fortune and Andrew streets can be lost when the Gurton Street Bridge is closed at about 3.6 metres on the Whittaker Street Bridge gauge. The Whittaker St Bridge can be closed by flood waters when the water level exceeds 5.0 metres on the Whittaker Street Bridge gauge.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
F-4
17. Special Needs Groups. This information may be obtained from Quirindi District Health Service once the area to be evacuated is known
18. 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.
19. Door knocking. Field teams conducting doorknocks will record and report back the following information to the Operations Centre:
• Addresses and locations of houses doorknocked and/or evacuated.
• The number of occupants.
• 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.
20. 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 Operations Controller who will arrange for Police to ensure their evacuation.
21. Security. The NSW Police will provide security for evacuated areas.
22. Transport and storage . Transport and storage of furniture from flood threatened properties will be arranged as time and resources permit.
Phase 3 – Shelter
23. 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 Liverpool Plains Shire SES Local Controller but managed as soon as possible by the Department of Community Services. Any or all of the following sites may be used as evacuation centres:
a. An evacuation centre for Quirindi will be established at the Quirindi High School Multi Purpose Hall and/or Anglican Church Hall in Henry Street.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
F-5
b. Caravans . Mobile caravans in the Quirindi Caravan Park will be relocated to the New England Institute of TAFE College grounds in Henry Street OR the Railway Square adjacent to the railway station.
24. Action on arrival. On arrival, evacuees will be:
a. registered;
b. medically checked, if necessary; and
c. provided with their immediate welfare needs.
25. Registration. The NSW Police will ensure that all evacuees are registered on arrival at the designated evacuation centres and details of the registrations are to be sent to the NSW Police Oxley Local Area Command in Tamworth by the quickest means available
26. 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 council at a location they deem suitable as a result of the effects of the flood.
Phase 4 – Return
27. Once it is considered safe to do so, the Liverpool Plains Shire SES Local 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.
28. The return will be controlled by the Liverpool Plains Shire SES Local Controller and may be conducted, at his/her request, by DoCS.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
G-1
ANNEX G - ARRANGEMENTS FOR THE EVACUATION OF CARAVAN PARKS AND THE RELOCATION OF CARAVANS General
1. The Quirindi Caravan Park, located at 15 Rose Street, is flood liable.
2. The park is located on the western edge of the Quirindi Sportsground between Quirindi and Jacob & Joseph creeks. When the water level reaches about 5.5 metres at the Whittaker Street Bridge gauge, flood waters break out of the Quirindi Creek near the Polo Ground. They then flow in a south-westerly direction across Pollock Street before draining in Jacob and Joseph Creek between Pryor and Henry streets. The Polo Grounds are inundated, water across the road closes Pollock and Pryor streets and the Quirindi Caravan Park is threatened. Inundation of the park can occur at any time shortly afterwards when flood waters reach about 6 metres on the Whittaker Creek Bridge gauge.
3. The park accommodates about four on-site vans hooked up to the sewerage system, about six tourist vans and two cabins.
Advising Procedures
4. The Caravan Park proprietor will 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 (i.e.: tyres inflated, jacks wound up, personal effects secured and annexes and lines for water, sewer, electricity and gas readily detachable).
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
G-2
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.
5. The Liverpool Plains Shire SES Local 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
6. The Caravan park proprietor will install flood depth indicators and road alignment markers within their caravan parks.
7. 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 in the New England Institute of TAFE College grounds in Henry Street OR the Railway Square adjacent to the railway station. 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. The Park manager 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:
c. The Caravan Park will be evacuated to the TAFE College Grounds, Quirindi and/or OR the Railway Square adjacent to the railway station.
8. The Caravan park manager will:
a. Ensure that their caravan park is capable of being evacuated within one to two hours.
b. Advise the Liverpool Plains Shire SES Local Controller of:
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
G-3
• 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 Liverpool Plains Shire SES Local Controller when the evacuation of the caravan park has been completed.
e. Provide the Liverpool Plains Shire SES Local Controller with a register of people that have been evacuated.
Return of Occupants and Vans
9. The Liverpool Plains Shire SES Local Controller, using council resources as necessary, will advise when it is safe for the caravan parks to be re-occupied.
10. Vans will be towed back to the caravan park by van owners or by vehicles and drivers arranged by the park manager. Again, Council and SES personnel will assist if available.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
-
ANNEX H - DETAILS OF THE DAM FAILURE WARNING AND EVACUATION SYSTEM FOR COEYPOLLY CK DAM General
1. This system was developed by the dam owner, Liverpool Plains Shire Council, on the basis of information supplied in the Dam Break Study Report (1991) produced by NSW Public Works. The method is an interim arrangement pending installation of a permanent telemetry early warning system (currently before the Minister of Water for funding approval as at September 2008) integral to the Dam Safety upgrade construction work and supersedes the system put in place by the former dam owner (Parry Shire Council).
2. It will be reviewed after any significant floods on Quipolly Creek and adjusted if necessary. Amendment of the following procedures is to occur following installation of the permanent early warning system.
Purpose of System
The Alerting Mechanism
3. Automatic recording equipment has been installed in the inlet tower at the Dam to:
a. Record the water level at the Dam.
b. Annunciate alarms at predetermined water levels via SMS to predetermined phone numbers.
c. Record rainfall totals
The method of communication is via GRS mobile phone coverage to an internet site which manages the trigger levels and message to be sent to the predetermined phone numbers. The internet site is maintained and operated by the dam owner.
4. The predetermined water levels are:
a. 0.30 m flow over the spillway (Protection Alert)
b. 1.20 m flow over the spillway (White Alert)
c. 2.18 m flow over the spillway (Orange Alert)
d. 3.05 m flow over the spillway (Red Alert)
H-- 2 -
5. The equipment is programmed to contact:
a. Water Services Manager representing Dam Owner.
b. Water Operations Supervisor (alternate to above).
c. The Liverpool Plains SES Local Headquarters - if unanswered, the call is diverted to a mobile phone in the possession of a Duty Officer.
Operation and Procedures
Activation of Dam Safety Emergency Plan
6. Following notification of a Protection Alert from the automatic device the dam owner will make contact with the Liverpool Plains SES Local Controller. The dam owner will arrange for a representative to be present at the spillway to confirm heights and monitor spillway height movements with communication to the Water Services Manager (or representative) until an all clear is issued. The Water Services Manager will liaise with the SES Controller to ensure they are informed of inflow trends and water levels over the spillway.
7. The SES shall endeavour to contact the occupants of the thirteen (13) identified dwellings downstream to prepare for further instructions regarding possible evacuation.
8. Individual residents can then make their own decisions on safety and evacuations at this stage - calling on the SES to assist if required. The SES shall coordinate a register of those choosing to evacuate prior to mandatory evacuation.
9. If flooding progresses to trigger the White Alert Level in the spillway, the SES Local Controller will consider issuing instructions for the mandatory evacuation of all thirteen dwellings downstream of the dam. When contemplating evacuation, inflow trends at the dam and egress for residents will be among the issues considered. Residents are to evacuate to pre designated high ground points for each identified dwellings.
10. If flooding progresses to trigger the Orange Alert Level in the spillway, the SES Local Controller will issue instructions for the mandatory evacuation of all thirteen dwellings downstream of Coeypolly Ck Dam. Residents are to evacuate to pre designated high ground points for each identified dwellings.
11. A list of names and telephone numbers for all persons involved in possible downstream evacuation areas is kept for reference. The dam owner will ensure that it is checked and updated at least twice a year and distributed in conjunction with the Local SES Controller.
12. The dam owner will issue an all clear at the point where the dam no longer presents a risk to failure due to flooding. The all clear will be communicated to the Liverpool Plains SES Local Controller.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
H-- 3 -
13. A “debrief of incident” shall occur between the dam owner and SES within 3 months of any flooding incident requiring the activation of greater than White Alert under the current DSEP.
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
I
MAP 1 - RIVER BASIN
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
I
MAP 2 - COUNCIL AREA MAP 3 -
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
I
MAP 3 - QUIRINDI
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
II
MAP 4 - WALLABADAH
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
III
MAP 5 - WERRIS CREEK
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
IV
MAP 6 - WILLOW TREE
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan
V
MAP 7 - 1955 FLOOD EXTENT AT QUIRINDI
Liverpool Plains Shire Local Flood Plan, October 2008, Sub-Plan of Liverpool Plains Shire Local Disaster Plan