Investing in infrastructure: Costs, benefits and effectiveness of disaster risk reduction measures. Presentation made by Lina Dorado Gonzalez, UNGRD.

1. Item 11. Assessing the
Economic Value of Eco-
system based measures
By Lina Dorado Gonzalez
OECD 18 – 19 September 2019

2. Outline
1. Location
2. Hazards context
3. Risk in Colombia
4. Policies and Regulations
5. Assessing the economic
value of Ecosystem
based measure
6. Challenges
Bogotá D.C. Alcaldía de Bogotá

3. 1. Location

4. 2. Hazards context

5. 2. Hazards context

6. Risk Atlas of Colombia
3. Risk in Colombia

7. Probabilistic Risk Assesment
3. Risk in Colombia

8. 4. Policies and Regulations
Act. 1523 of 2012
“By which a National Policy is adopted to
manage disaster risk and a National
System of Disaster Risk Management is
established”
Chapter 1. Principles and definitions
Chapter 2.Organization, direction and coordination of
the National System for Disaster Risk Management
Chapter 3. Planning Instruments
Chapter 4. Information System
Chapter 5. Financial instrument for the Disaster Risk
Management
Chapter 6. Declaration of Disaster, Public Calamity and
normalcy
Chapter 7. Special regulation for Public Disaster and
Calamity situation
Chapter 8. Final Stipulations

9. 4. Policies and Regulations
Risk Knowledge
Analysis and
assessment of risk scenarios
Risk analysis
Risk monitoring
Risk communication
Risk Reduction
Prospective interventions
Financial protection
Corrective interventions
Disaster Management
Response preparedness
Recovery preparedness
Response execution
Recovery execution
These processes are part of SNGRD specific objectives and cross-cutting to SNGRD
components
Subprocesses
NationalSystemforDisasterRisk Management - Whicharethe DisasterRiskManagementProcesses?

10. 5. Assesing the economic value of Eco-system based measures
Importance of DRR Investment
 DRR integration into
sustainable
development
 DRR as investment,
not cost, to secure
development
outcomes against
disasters
 DRR Investment for
all phases of disaster
risk management

11. 5. Assesing the economic value of Eco-system based measures
 DRR integration into sustainable development
- Colombia has a Regulatory Improvement Policy.
- Colombia has an assessment of disaster risk management policy
- Prospective intervention (Inclusion of risk management in land management plans, technical
assistance to the territories
 DRR as investment, not cost, to secure development outcomes against disasters
- Some learned lessons, after disaster and before disaster.
- 2% investment to knowledge of general royalty system
 DRR Investment for all phases of disaster risk management
- Toolbox that guides the incorporation of disaster risk management criteria in the formulation and
structuring of public investment projects.

12. 5. Assesing the economic value of Eco-system based measures
5.1. La Mojana – Flood La Niña 2010 - 2011
Integrated hazard map for return period 50 years –
Current situation
Cost Benefit Analysis and methodology for final selection of intervention options
Summary of the impact of connectivity and pulses
in La Mojana for each of the dike intervention
alternatives
Wetland Alternative 2 Alternative 3 Alternative 4 Alternative 5
Ayapel swamp
No
connectivity -
no flood pulse
No connectivity
- no flood pulse
Decreases the
depth of the flow
to the floodplain
It greatly decreases
the depth of the flow
to the floodplain. Does
it affect min. and max.
optimum?
San Marcos
Swamp
No
connectivity -
no flood pulse
No connectivity
- no flood pulse
It greatly
decreases the
depth of the flow
to the floodplain.
Does it affect
min. and max.
optimum?
It greatly decreases
the depth of the flow
to the floodplain. Does
it affect min. and max.
optimum?
Pancegüita
Stream
Increase
depth
Minimal
connectivity –
reduces flood
pulse
Similar Similar
Mojana Stream
Increase
depth
Minimal
connectivity –
reduces flood
pulse
Similar Similar

13. 5. Assesing the economic value of Eco-system based measures
5.1. La Mojana – Flood La Niña 2010 - 2011
Territorial
transformation
Social
transformation
Productive
transformation
Environmental
sustainability
Institutional
transformation
Cultural
sustainability
Infrastructure
intervention
Social
intervention
Economic
intervention
Environmental
intervention
Institutional
intervention
Cultural
intervention
More
sustainable and
safe water
regulation
infrastructure
and adapted
infrastructure
(EPA-ODCA)
Healthy and
adapted habitat
for communities
(EPA-ODCA)
Productivity and
competitiveness
(EPA-ODCA)
Environmental
conservation
(EPA-ODCA)
Governance and
strengthening of
local capacities
(EPA-ODCA)
Heritage and
cultural
conservation
(EPA-OD CA)
ProgramStrategy
Structural
measure
Non-structural
measure

14. 5. Assesing the economic value of Eco-system based measures
HIDROGRAFIA Y RIESGO PLANO 6
RIESGO ALTO
RIESGO MEDIO
MULTIPLES EVENTOS 1949-57-
71-72-87-94
FUENTE: CARTOGRAFIA PBOT – ACUERDO 028 /201 0 E IMÁGENES GEOSPATIAL
KNOWLEDGE
(AGREEMENT 063/2000)
REDUCTION
(AGREEMENT 063/2000)
LAND USE
IMPLEMENTATION
Barrio
Rumipamba
5.2. Mocoa – Debris flow and flash flood 2017

15. 5. Assesing the economic value of Eco-system based measures
Scheme buffer restoration of river in Mocoa
Source: CORPOAMAZONIA, 2019
30 METERS
30 METERS
12
METERS
12
METERS
Isolationzonefornaturalregeneration
Arearestorationandreforestation
Arearestorationandreforestation
Isolationzonefornaturalregeneration
Active bed river
Side and bottom undermining zone

16. Corrective Intervention – Mitigation of the Existing Risk
6. Challenges
 Assessing physical risk is essential, but from an integral perspective it is neccesary tha
include social, economic and institutional factors.
 Probabilistic modeling of flood risk areas, which is fundamental today for a well –
founded decisión-making based on the cost–benefit of physical interventions areas.
 Make decisions with a watershed vision, not by focal points
 Explore Bioengineering techniques in complex problems
 Regulations for non- structutal mesures – Ensurance Policies
 Include maintenance and repair cost of structural and non – structural mesures
Prospective Intervention – Prevent the Future Risk
 Land use planning development plans Investment projects
 Risk reduction with structural and non-structural actions
 Developed risk modeling of future scenarios
 Evaluate environmental losses

17. Appropiate knowledge: A task for everyone
Thanks…

18. ¡Appropiate knowledge: a task for
everyone!
Lina Dorado González
lina.dorado@gestiondelriesgo.gov.co