improving flood risk management in the informal settlements of cape town liaisons: mogamat kenny...

Improving Flood Risk Management in the Informal

Settlements of Cape Town

Liaisons:Mogamat KennyBarry WoodCatchment, Stormwater, & River Management

Bethany Bouchard

Ashley Goncalo

Michael Susienka

Kevin Wilson

Worcester Polytechnic Institute

• Our Mission

• Information Collection

• Addressing the Issues

• Findings and Recommendations

• Questions

The Forecast


Our MissionConduct a Flood Risk Index (FRI)

Pilot Study

Create Guidelines to Assist

Communities

Generate Recommendations for the City of Cape

Town


Information Collection

• Settlement Visits• On-Site and City

Interviews• Case Study

Research• GIS and Rainfall

Data Analysis• Brainstorming


Lack of ResourcesPoor LocationAddressing the Issues Associated with Flooding

Incoming Residents are Unaware of High Risk Areas

Infrastructure Blockages

Increased Flood Risk within the Informal

Settlements

Flood Risk Index – Pilot Study Prototype Flood Risk Index

Purpose:• To prioritize settlements at higher

flood risk for housing upgrade• To determine appropriate community

capacity measures to be implemented in a settlement

How it works:Based on measurable indicators• Probability of a flooding event• Topography• House structure susceptibility• Community capacity and awareness

Flood Risk Index – Pilot StudyMapping High-Risk Areas

Purpose:• Indicate areas with high flood

risk based on topographical location

• Use findings for topographical indicator in the FRI


Flood Risk Index – Pilot Study Flood Incident Reporting

2004 2005 2006 20070

100

200

300

400

500

600

050100150200250300350400450500

Rainfall D6 Reports D7 Reports

Year

Rai

nfa

ll (

mm

)

Nu

mb

er o

f in

cid

ent

rep

ort

s


Flood Risk Index – Pilot StudyRecommendations

• Improved topographical data collection methods

• More precise records of displaced residents

• Flood marshals


Flood Risk Index – Pilot StudyFlood Marshals

• Sets foundation for FRM at community level

• Consistent data collection

• Community education

Creating Guidelines to Assist Communities

Examples of how to mitigate seepage via structural adaptations includingrealistic photographs


Example of how to mitigate leakage in household:

How would the City communicate these suggestions to the settlement residents?




• Analyzed positives, negatives, audience, amount to be generated, estimated cost

School Folders and Education Program Signs in Public Areas

(e.g. taps, bathrooms, public phones)•Children as audience•Tangible, multi-use product•Increases community capacity



Finding

Need to strengthen communication between

City departments

Recommendations

• Informational database accessible to all relevant departments

Results and DeliverablesRecommendations for the City of Cape Town



Finding

Minimal management at the community and household

level

Recommendations

• Implementation of community-based disaster risk management program

• Collaboration with academic institutions (such as Disaster Mitigation for Sustainable Livelihoods Programme, UCT), and/or other NGOs


Finding

Litter blockages, underutilization of skips

Recommendations

• Community preference of method of rubbish storage/removal

• Incentive program



Thank You for Your Attention!

Questions?

improving flood risk management in the informal settlements of cape town liaisons: mogamat kenny...

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