Understanding flood risks in Chad

This brief presents the key results and takeaways from an analysis of flood risk and incidence in Chad, with particular attention to population exposure to floods. Flood hazard is projected to increase in the coming decades with some areas becoming newly exposed to flood risk and others experiencing floods of greater severity. However, population growth is the main driver of projected increases in population flood exposure.

These projected increases could potentially be reduced somewhat if efforts are made to prevent or mitigate flood exposure. Improved flood risk communications, investment in flood defences, water management infrastructure, more durable housing and support for relocation or protection of informal settlements in areas with high flood hazard could reduce vulnerability to flooding even as flood hazards and the exposed population increase. Such policies would be most important in fast-growing parts of urban areas in proximity to rivers.