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FLOODS IN MUNICIPALITY OF AMADORA Emanuel Crucho | Geographic Information Division Luís Carvalho | Civil Protection Municipal Service. Universidade Nova de Lisboa Lisbon, January 21th | 2014. FLOODS IN MUNICIPALITY OF AMADORA. 1. INDEX. 1. FLOODS IN MUNICIPALITY OF AMADORA

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FLOODS

IN MUNICIPALITY OF AMADORA

Emanuel Crucho | Geographic Information Division

Luís Carvalho | Civil Protection Municipal Service

Universidade Nova de Lisboa

Lisbon, January 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

1. INDEX

1. FLOODS IN MUNICIPALITY OF AMADORA

1.1. HYDROGRAPHIC NETWORK

1.2. HYDROGRAPHIC NETWORK SUSCEPTIBILITY

1.3. MORPHOLOGIC CAUSES OF FLOODS IN AMADORA

1.4. TYPICAL MORPHOLOGIC CAUSES AND HAZARD

1.5. EXAMPLE

1.6. RESTART SPOTS

1.7. FLOOD HAZARD SPOTS

2. FLOODS – HISTORIC LOSS DATA

2.1. LAST DECADE

2.2. LAST DECADE (YEAR)

2.3. LAST DECADE (MONTH)

2.4. CRITICAL AREAS

2.5. PREVENTION

3. FINAL NOTES

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

1. FLOODS IN MUNICIPALITY OF AMADORA

1.1. HYDROGRAPHIC NETWORK

  • HYDROGRAPHIC NETWORK : - EXTENSION - 46,8 KM
  • DRAINAGE DENSITY - LOW ( 2KM/KM2)
  • STREAM ORIENTATION – N-S OR NW-SE

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

1. FLOODS IN MUNICIPALITY OF AMADORA

1.2. HYDROGRAPHIC NETWORK SUSCEPTIBILITY

# RESULTS OF AN MULTI-CRITERIA ANALYSIS.

CONSIDERED: FLOW ACCUMULATION, SLOPE AND PERMEABILITY (LITHOLOGY AND SOIL COVERAGE)

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

1. FLOODS IN MUNICIPALITY OF AMADORA

1.3. MORPHOLOGIC CAUSES OF FLOODS IN AMADORA

STUDY THE MORPHOLOGIC CAUSES OF

FLOODS IN AMADORA: 

54 SPOTS WITH MORE THAN 1 OCCURRENCE (2000-10)

8 MORPHOLOGIC CAUSES CONSIDERED

MORFOLOGIC CAUSES CONSIDERED: A - MATCH WITH HYDROGRAPHIC NETWORK

B - LOCATION IN SQUARE/ROTUNDA – REDIRECTION OF FLOW

C - LOCATION IN SQUARE/ROTUNDA – AREA OF ACCUMULATION

D - LOCATION IN STREET INTERCEPTION – REDIRECTION OF FLOW

E - LOCATION IN A ACCUMULATIVE STREET

F - ARTIFICIAL BARRIER TO NATURAL FLOW

G - ARTIFICIAL LOWERED AREAS

H - UNDETECTED CAUSES

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

1. FLOODS IN MUNICIPALITY OF AMADORA

1.4. TYPICAL MORPHOLOGIC CAUSES AND HAZARD

TYPICAL MORPHOLOGIC CAUSES: A - MATCH WITH HYDROGRAPHIC NETWORK

D - LOCATION IN STREET INTERCEPTION – REDIRECTION OF FLOW

E - LOCATION IN A ACCUMULATIVE STREET

F - ARTIFICIAL BARRIER TO NATURAL FLOW

ANUAL FREQUENCY(2000-10)

>2,0

<=2 e >1

<=1 a =>0,5

<0,5

  • Summary:
    • TYPICAL CAUSE: E ; E-F
    • LOW AND MODERATE HAZARD SPOTS MATCH WITH: E ; EF
    • VERY HIGH HAZARD SPOTS MATCH WITH: D-E
    • SPOTS IN HYDROGRAPHIC NETWORK MATCH WITH: MODERATE AND LOW HAZARD

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

1. FLOODS IN MUNICIPALITY OF AMADORA

1.5. EXAMPLE

EX: SPOT Nº 2 – 2,5 FLOODS/YEAR

D - LOCATION IN STREET INTERCEPTION – REDIRECTION OF FLOW

E - LOCATION IN A ACCUMULATIVE STREET

VERY HIGH HAZARD SPOT

Avenida António Feijó

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

1. FLOODS IN MUNICIPALITY OF AMADORA

1.5. EXAMPLE

EX: SPOT Nº 5 – 1,9 FLOODS/YEAR

E - LOCATION IN A ACCUMULATIVE STREET

F - ARTIFICIAL BARRIER TO NATURAL FLOW

G - ARTIFICIAL LOWERED AREAS

Rua António Aleixo

Avenida Dom Pedro V

HIGH HAZARD SPOT

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

1. FLOODS IN MUNICIPALITY OF AMADORA

1.6. RESTART SPOTS

  • EXAMPLE OF “RESTART SPOTS”
  • PROBLEM: ACCUMULATION OF SEDIMENTS AND MATERIAL FROM A ROAD CONSTRUTION SITE (JUN 2008-ABR 11)

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

1. FLOODS IN MUNICIPALITY OF AMADORA

1.7. FLOOD HAZARD SPOTS

  • 477 OCCURENCES (2000-10)
  • IN 54 SPOTS

ANUAL FREQUENCY

  • 4 SPOTS – VERY HIGH HAZARD
  • 11 SPOTS – HIGH HAZARD
  • 18 SPOTS – MODERATE HAZARD
  • 21 SPOTS – LOW HAZARD

>2,0

<=2 e >1

<=1 a =>0,5

<0,5

  • PARISH WITH MORE SPOTS DENSITY:
  • ÁGUAS LIVRES (4/KM2/YEAR)

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

2. FLOODS – HISTORIC LOSS DATA

2.1. LAST DECADE

IN THE LAST DECADE, THE MUNICIPALITY REGISTERED ABOUT 1686 URBAN FLOODS. URBAN FLOODS ARE ONE OF THE EVENTS WHICH CAUSES MORE LOSSES: DESTRUCTION OF PROPERTY, ECONOMIC DAMAGE, DISRUPTION OF SERVICES.

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

2. FLOODS – HISTORIC LOSS DATA

2.2. LAST DECADE (YEAR)

  • YEARS WITH MORE TOTAL PRECIPITATION:
  • (1) 2000 (2) 2010 (3) 2001;
  • YEARS WITH MORE FLOODING EVENTS:
  • 2000 (2) 2003 (3) 2006;
  • YEARS WITH LESS TOTAL PRECIPITATION:
  • (1) 2005 (2) 2004 (3) 2007;
  • YEARS WITH FEWER FLOODING EVENTS:
  • (1) 2004 (2) 2005 (3) 2007;

Not always the trend is: MORE PRECIPITATION = MORE FLOODS

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

2. FLOODS – HISTORIC LOSS DATA

2.3. LAST DECADE (MONTH)

  • MONTHS WITH THE HIGHEST TOTAL PRECIPITATION:
  • (1) DECEMBER (2) OCTOBER (3) NOVEMBER;
  • MONTHS WITH MORE FLOODING
  • EVENTS:
  • OCTOBER (2) NOVEMBER (3) DECEMBER;
  • MONTHS WITH LESS TOTAL
  • PRECIPITATION:
  • (1) JULY (2) AUGUST (3) JUNE;
  • MONTHS WITH FEWER FLOODING
  • EVENTS:
  • (1) MAY (2) JULY (3) JUNE.

OCTOBER, NOVEMBER AND DECEMBER, ARE THE MONTHS WITH MORE PRECIPITATION AND MORE OCCURRENCES

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

2. FLOODS – HISTORIC LOSS DATA

2.4. CRITICAL AREAS

  • THE FREQUENCY AND OCCURRENCE OF URBAN FLOODS ARE MAINLY DUE TO HEAVY RAINFALL AND HIGH URBANIZATION IN THE BASINS OF THE MUNICIPALITY.
  • FLOODS “HOT-SPOTS”
  • IC 19 Acesso Hospital Amadora-Sintra (30 urbanfloods).
  • Rua Elias Garcia + Avenida Dom Nuno Alvares Pereira.
  • Estrada da Falagueira.
  • Avenida Dom Pedro V.
  • Rua Correia Teles.
  • Rua Capitães de abril.
  • Avenida Cardoso Lopes + Avenida Combatentes da Grande Guerra.
  • Avenida da República.
  • Avenida Quinta Grande.

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

2. FLOODS – HISTORIC LOSS DATA

2.4. CRITICAL AREAS

Avenida Dom Pedro V (Damaia)

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

2. FLOODS – HISTORIC LOSS DATA

2.4. CRITICAL AREAS

Intervention and resizing of the drainage network

(Water and Sewage Service – SMAS)

Rotunda IC19 Hospital (Venteira)

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

2. FLOODS – HISTORIC LOSS DATA

2.5. PREVENTION

PREVENTION COMMITMENT : - DISSEMINATION OF PREVENTATIVE MEASURES (CIVIL PROTECTION);

- URBAN DRAINAGE SYSTEM RESIZING (SMAS); 

- TECHNICAL STUDIES (DIG); 

- URBAN CLEANING (CIVIL PROTECTION AND THE LOCAL COUNCILS);

- WEATHER AND CIVIL PROTECTION WARNING SYSTEM AVAILABLE TO THE COMMUNITY (CIVIL PROTECTION);

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

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FLOODS

IN MUNICIPALITY OF AMADORA

3. FINAL NOTES

  • -LOW OR MODERATE HYDROGRAPHIC NETWORK SUSCEPTIBILITY TO FLOODS;
  • - THE LOW PERMEABILITY OF THE SOIL AND THE HIGH DENSITY OF CONSTRUTION INCREASED THE FREQUENCY OF FLOODS IN AMADORA;
  • IT WOULD BE IMPORTANT TO HAVE DIRECT AND INDIRECT COSTS OF FLOODS;
  • - THERE IS A CONSIDERABLE EFFORT TO IMPROVE PREVENTIVE MEASURES;
  • - TECHNICAL STUDIES HAVE BEEN IMPORTANT TO IMPROVE KNOWLEDGE ABOUT FLOODING

FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014

slide19

FLOODS

IN MUNICIPALITY OF AMADORA

Emanuel Crucho | Geographic Information Division

Luís Carvalho | Civil Protection Municipal Service

Universidade Nova de Lisboa

Lisbon, January 21th | 2014