Nigeria — Flood Situation Report 1 — Borno State (13 September 2024)

The annual rainy season in Nigeria generally starts in April, with the highest concentration of rainfall between June and September. Between August and September 2024, hefty rains affected many LGAs in Borno State, resulting in significant flooding that has devastated various communities. Furthermore, on 9 September 2024, Maiduguri was affected by a massive flood due to the collapse of Alau dam in the neighbouring Konduga LGA of Borno State. The collapse of the dam, exacerbated the flooding in Maiduguri in addition to the continuous heavy rainfall. This marks the first time the Alau Dam has overflowed since 2012. The floods have caused extensive damage to infrastructure, crops, and shelters, severely affecting livelihoods and displacing many households. Climate variability and human-induced factors have exacerbated the flood recently, leading to increased displacement across Nigeria. 

In the 19 local government areas (LGAs) of Borno State that were assessed, DTM identified 320,791 individuals in 65,731 households affected by the floods. These individuals included IDPs displaced by the floods and residents impacted by the floods but remained in their communities. The affected population included 157,274 displaced individuals and 108 returnees.