Flood vulnerability Borno State, 2017 Contingency planning

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Key Figures

Out of 164 camps in Borno state, 59 camps are estimated to be at risk of flood

• 12 Low vulnerability camps

• 35 High vulnerability camps

• 12 Medium vulnerability camps

Number of Children: 214,846 (65.6% of the overall number of children in all sites)

Number of Women: 74, 919 (66.4% of the overall number)

Number of Elderly People: 17,113 (62.5% of the overall number)


As the rainy season approaches in Nigeria, floods are expected to affect many sites situated in flood-vulnerable locations in Borno state. The flood vulnerability mapping indicates that about 59 camps could be exposed to flooding hazards, as they are located along or close to water flow accumulation areas. Paired with the continuous influx of IDPs to existing sites and to Local Government Areas, overstretching capacities on the ground, and the level of congestion in IDP sites, this will increase health and sanitation concerns. In addition to the risk associated with access and sanitation, the preparation to the rainy season requires urgent interventions in terms of NFI and retrofitting of unsafe shelter units, through the provision of emergency shelter materials to reinforce the structures against strong winds and rains. This is in particular the case in LGAs with a high concentration of makeshift shelters, in various displacement settings, such as Konduga, Ngala, Jere, Monguno, Dikwa, among other locations (shelter multi-severity mapping 2017).

Accessibility to People in Need

Accessibility to some areas will be one crucial problem during rainy season. In Borno State, many of the camps that are exposed to floods equally have poor accessibility by road (e.g Rann). Moreover, poor drainage in the sites also impedes the emergency response for vulnerable populations. Generally, sites located outside the Maiduguri Metro have low road density and poor access due to unpaved roads that are washed by floods.

Key Advocacy points for Contingency Planning:

• Improved flood risk assessment during site assessments.

• Drainage work in identified sites and backfilling of low areas with site improvement through improved site planning, infrastructures and engineering works.

• Small drainage around the shelter structures and site elevation.

• Provision of emergency shelter items to IDPs families living in makeshift shelters to reinforce the structure against strong winds and rains.

• Stockpiling of Non-Food items in key locations to ensure a rapid response to emerging needs and new arrivals, despite limited road access.

*The categorization of flood vulnerability is based on the proximity of sites to water accumulation areas and information provided by the site facilitators regarding the level and type of water flow and accessibility during the rainy season. **Based on Digital Elevated Model (DEM) assessment and information available as of April 2017, subject to amendments. The mapping aims at giving an indication of potential flooding areas with however limitations linked to the availability of flow data and other determining factors, such as the type of soil, etc.