DamDam--breakbreak EmergencyEmergency PlanningPlanning inin Portugal.Portugal. TheThe rolerole ofof thethe NationalNational ServiceService forfor CivilCivil ProtectionProtection
Seinäjoki, 1-5 October 2000
FernandaFernanda RochaRocha
Serviço Nacional de Protecção Civil Av. do Forte em Carnaxide 2799-512 Carnaxide Portugal Email: [email protected]
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 1 PortuguesePortuguese backgroundbackground
More than 1000 dams in Portugal » 140 large dams, and » > 800 medium size
Large dams owners » Electricity of Portugal » Water Authority
No legislation on dam safety until 1990
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 2 PortuguesePortuguese backgroundbackground
RSB, 90 - Regulation on dam safety » dam-break flood analysis, and » emergency planning
NPB, 93 - Guidelines for dam design » evaluation of inundation areas NOIB,93 - Guidelines for dam observation and inspection » warning in case of earthquakes, floods, and dam abnormal behaviour
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 3 CriteriaCriteria forfor damdam safetysafety applicationapplication
RSB,RSB, 19901990
> 100 000 m3 H > 15 m, or > 15 m V > 100 000 m3
Special other cases may be considered, if potential risk exist.
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 4 RoleRole ofof SNPCSNPC
ToTo assureassure thethe EmergencyEmergency PlanningPlanning
RescueRescue andand reliefrelief actionsactions coordinationcoordination
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 5 InternalInternal andand ExternalExternal EmergencyEmergency PlanningPlanning
Dam’ owner Civil Protection
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 6 InternalInternal andand ExternalExternal EmergencyEmergency PlanningPlanning INTERACTIONINTERACTION
DefinitionDefinition ofof alertalert levelslevels
AlertAlert andand warningwarning systemssystems
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 7 AlertAlert levelslevels
ALERT SITUATION Dam Civil Others LEVEL Owner Protection …
Normal
Dam break
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 8 AlertAlert levelslevels
ALERT Situation DAM Manager Entity LEVEL ACTIONS
Normal or routine situation, or MEASURES to solve problem. Detection of anomalies in the dam, or other events: that do not compromise the structural dam ALERT: safety, - Authority (INAG) nor its operational elements, and -Dam owner do not make unviable the dam observation Blue system.
The gravity of existing problems must let belief that no consequences are expected in the valley downstream the dam.
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 9 AlertAlert levelslevels
ALERT Situation DAM Manager Entity LEVEL ACTIONS
Existence of anomalies or events that MEASURES to solve might compromise up to some degree problem. the structural and/or operational dam safety or the dam observation system, assuming that ALERT: eventual small consequences downstream the - Authority (INAG) dam can happen: -Dam owner 1. Existence of meteorological adverse conditions; - Civil Protection 2. Detection of anomalies in:
YELLOW - dam structural elements, or; - dam operational elements, or; - dam observation system; 3. Existence of foundations problems.
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 10 AlertAlert levelslevels
ALERT Situation DAM Manager Entity LEVEL ACTIONS
Situation with high probability of dam failure, MEASURES to solve letting belief it might not be possible to control problem. the situation, what might cause serious consequences downstream the dam: ALERT: - Authority (INAG) 1. Detection of severe anomalies in: -Dam owner - dam structural elements, or; - Civil Protection - dam operational elements; WARNING:
ORANGE 2. Existence of severe foundations problems; Population downstream 3. Occurrence of floods with high recurrence the dam interval. to be ready for evacuation
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 11 AlertAlert levelslevels
ALERT Situation DAM Manager Entity LEVEL ACTIONS
Situation of inevitable catastrophe: ALERT: - Authority (INAG) -Dam owner 1. Imminence of dam failure; - Civil Protection
2. Dam failure. WARNING: Population downstream
RED the dam to evacuate quickly
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 12 InternalInternal andand ExternalExternal EmergencyEmergency PlanningPlanning
Rapid warning
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 13 WarningWarning systemsystem
99% of the casualties usually occur in the first 15 km
Guilhofrei Travel time to villages downstream the dam Andorinhas Varos a Crestuma-Lever 150 Freigil Torrão-Crestuma 135 Torrão-Carrapatelo 120 Ranhados Azibo 105 Alijó 90 Alto Ceira Apartadura 75 Marateca 60 Meim oa Maranhão
Time (minutes) 45 Alvito 30 Odivelas Fonte Cerne 15 Campilhas Vale do Gaio 0 Pego do Altar 0 102030405060Monte da Rocha Distance to the dam (km) Roxo Santa Clara { } Dmin = min D (T = 90 min); D = 30 km
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 14 EmergencyEmergency planningplanning mainmain actionsactions
Detection
Decision making Internal Emergency Plan (PEI) Alert Warning
External Emergency Plan (PEE)
Evacuation
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 15 EmergencyEmergency PlanningPlanning
PROJECT:PROJECT: Dam brake flood risk management (NATO PO-FLOOD risk management)
Portugal, Algarve
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 16 KeyKey pointspoints forfor emergencyemergency planningplanning
InundationInundation mapsmaps – Dam’ owners - PEI » dam-break flood simulations; » flash floods, abrupt waves and numerical models RiskRisk zoningzoning criteriacriteria » water levels » velocities » times of flood arrival ValleyValley vulnerabilityvulnerability criteriacriteria » land use » social and » economical characterizations
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 17 EEPEEP -- DownstreamDownstream zoningzoning criteriacriteria
Valley vulnerability indicators
Physical vulnerability of the buildings » number of stages, construction materials, age Social vulnerability of the population » age, % of elderly people and children » existence of support infra-structures like hospitals and health centres Economical vulnerability of the valley » land use » Activities » % of illiteracy and of unemployment Vulnerability of preparation of population & agencies » existence of an revised emergency plan and training
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 18 ExternalExternal EmergencyEmergency PlanningPlanning
ACTINGACTING PRINCIPLESPRINCIPLES
Permanent situations surveillance Lisbon
Articulation with: Special National and District Plans for Flood management
Meteorological Institute Water Institute Dam’s Manager Institutions Civil Protection Agents
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 19 ExternalExternal EmergencyEmergency PlanningPlanning
Means and resources allocation » for each vulnerable zone Actions of entities involved in crises management » Water Authority (Water Institute – Ministry of Environment) » Meteorological Institute » National Service for Civil Protection » Dam Safety Commission » Dam-owner Actions of entities involved in emergency » National Service for Civil Protection » All Civil Protection Agents » Municipalities Type of evacuation » by own people means » help of civil protection agents
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 20 InformationInformation SystemSystem
DamInfoDamInfo
PLANO DE EMERGÊNCIA NIVEL 3 BARRAGEM DO ARADE
Lista de procedimentos
SIPROCSIPROC
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 21 ExternalExternal EmergencyEmergency PlanningPlanning
Barragem do Funcho FunchoFuncho andand AradeArade EEPEEP Barragem do Arade
ZONA 1 área rural ÁREA DE SEGURANÇA IMEDIATA
ZONA 2 área urbana da cidade de SILVES Model, or example for all other dam’ emergency plans ZONA 3 área rural
ZONA 4 área urbana da cidade de PORTIMÃO
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 22 ConclusionsConclusions
Legislation requirements have not been achieved yet (5 years)
Believe that in the next two or three years,years all dams covered by the legislation will dispose of internal and external emergency plans, with proper alert and warning systems, in compliance with the legislation.
International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 23 ENDEND
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International Seminar/Workshop on the RESCDAM Project Risk assessment - dam break flood analysis – emergency action planning 24