March 2009

Sergio Soto-PrianteDeputy Director General for

Hydraulic Infrastructure for AgricultureNational Water Commission (Mexico)

V World Water Forum

Managing risks associated with natural disasters

Managing risks associated with natural disasters

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EmergencyEmergency

Unpredictable and uncontrollable

events with impact in the

population and infrastructure that

can be catastrophic.

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Situación fuera de control que se presenta por el impacto de un desastre Natural

Emergencia causada por intervenciones andrógenas Situaciones derivadas de la ocurrencia de fenómenos hidro-meteorológicos extremos, en locales donde existen obras construidas por el hombre

II. . Measures to be taken before the Emergency: Measures to be taken before the Emergency: PreventionPrevention (1) (1)

Prepare maps of risk areas.

Territorial management and relocation of human settlements.

Build control and regulation infrastructure in rivers (levees, dikes, channels, flood gates, diversion dams, spillways).

Maintainment in rivers (bridges, siphons, tunnels, dredge works).

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Install and operate early warning systems (weather forecast, flow measurement in real time, hydraulic and hydrological models).

Develop contingency plans in rivers and high-risk areas.

Establish communication and operation protocols with state and local authorities.

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II. . Measures to be taken before the Emergency: Measures to be taken before the Emergency: PreventionPrevention (2) (2)

Preliminary diagnosis of type and extent of damage.

Planning of emergency measures.

Integration of teams and coordination with local authorities.

Monitoring the evolution of the hydro-meteorological phenomenon and its impact.

Assessment and correction of emergency measures.

IIII. . Measures to be taken during the Emergency: Measures to be taken during the Emergency: ResponseResponse

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Assess damage to water infrastructure and monitor its behavior, including storage dams.

Restore and normalize the supply of drinkable water and sanitation services.

Dislodge water volumes in flooded towns.

IIIIII. . Measures to be taken after the Emergency: Measures to be taken after the Emergency: ReconstructionReconstruction (1) (1)

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Provide potable water to the population where service cannot be restore.

Carry out reconstruction of the hydraulic infrastructure.

Start protocols for resource use of federal funds for reconstruction.

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IIIIII. . Measures to be taken after the Emergency: Measures to be taken after the Emergency: ReconstructionReconstruction (2) (2)

IVIV. Case: State of Tabasco. Case: State of Tabasco

The State of Tabasco is located in Southeastern Mexico and has a population of 2’034,507 inhabitants.

Average annual rainfall is 2,102 mm.

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Rivers of TabascoRivers of Tabasco

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Hydro-meteorological events 2007Hydro-meteorological events 2007 During the months of October and November 2007

there were two cold fronts, combined with a low pressure channel, and the tropical storm "Noel" in the Caribbean Sea.

During October 2007, precipitation mounted to 1,960 millimeters (93% of the annual average).

During October 28th, 29th and 30th the precipitation was 961 millimeters (46% of the annual average).

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The fundamental objective of the IWPT is to optimize

conditions to reduce risk and vulnerability upon the

population, their economic activities and ecosystems

in the occurrence of extreme hydro-meteorological

events, and the possible effects of climate change.

General ObjectiveGeneral Objective

Integrated Water Plan for Tabasco (IWPT)Integrated Water Plan for Tabasco (IWPT)

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1. Management of the rivers Samaria, Carrizal, La Sierra, Pichucalco, and Usumacinta to protect 370,000 inhabitants and 46,000 farming hectares.

2. Optimize the operation of the hydroelectric dam system of the Upper Grijalva River.

3. Territorial management and the resettlement of population located in high risk areas.

4. Support the development of local capacities through: research projects, specialized studies and preparation of professionals.

Specific objectives (1)Specific objectives (1)

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Integrated Water Plan for Tabasco (IWPT)Integrated Water Plan for Tabasco (IWPT)

5. Integrated management of upper basins

(reforestation, soil conservation and restoration)

6. Monitoring of the works and preventive policies on a regular basis.

7. Develop an efficient geographic information system.

Specific objectives (2)Specific objectives (2)

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Integrated Water Plan for Tabasco (IWPT)Integrated Water Plan for Tabasco (IWPT)

Investment ProgramInvestment Program

STAGETOTAL

INVESTMENT (million US Dlls)

YEARS

1. Urgent Actions 152 2007-2008 

2. Immediate Actions 80 2009

3. Studies and Medium Term Actions 394 2010-2012

Total 626

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Main results 2007-2008Main results 2007-2008

INFRASTRUCTURE QUANTITY

Placement and removal of Flood barriers (kilometers) 68.5

Leveling of levees (kilometers) 23.3

Repairing landslides (kilometers) 22.5

Dredge of streams and drains (kilometers) 23.0

Channel reparation (kilometers) 21.0

Alleviation spillways 2

Control structure on rivers (River Carrizal 1st stage) 1

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