By Ola Kay
The Ogun State Government has raised a mid-term flood alert, warning residents in flood-prone communities to be prepared for possible flooding between September and November 2025.
Early Floods Managed:
Officials noted that the first phase of flooding, which occurred between March and July, was successfully managed through proactive measures such as clearing drainage channels, public sensitization, and enforcement of environmental laws. The government commended residents for cooperating by keeping waterways free of refuse and avoiding trading activities on drainage paths.
September–October Identified as Critical Period
Following the seriousness of the looming flood within the period, the government has warned that the second phase of heavy rainfall, which is expected from mid-September through November will likely pose a greater threat.
Forecasts indicate that September will experience the highest rainfall, measuring about 204mm, followed by October with 190mm. The rains are expected to subside to 93mm by November.
Flood-prone areas highlighted in the state include coastal and riverine communities such as Iwopin, Ifaara, Oni, Makun, Ebute-Imobi, Tungeji Island, and settlements adjoining Ogun River, including Isheri, Warewa, Akute, and Abeokuta. Communities along the ILO and Iju Rivers are also at risk.
Authorities warned that flooding could be worsened by tidal variations and controlled water releases from the Oyan Dam, where water levels have risen to 58.47 metres above mean sea level.
Emergency Response Activated
But in the face of the imminent emergency, the State Emergency Management Agency (SEMA) has been placed on red alert for evacuation operations. Meanwhile, the Ministry of Environment is working closely with the Ogun-Osun River Basin Development Authority to regulate dam releases.
Residents in flood-prone zones have been advised to relocate to safer areas. Fish farmers in low-lying plains—particularly in Eriwe, Yemule, Ilase and Ayegbami—were urged to harvest their stock immediately to prevent losses, while households relying on wells and boreholes were cautioned about possible water contamination.
Meanwhile, the state government has reassured residents of its resolve to do the needful, in order to mitigate the effects.
Commissioner for Environment, Hon. Ola Oresanya, assured that the state government remains committed to protecting lives and property, saying:
“We remain dedicated to averting the menace of flooding in Ogun State and will continue to take proactive steps to safeguard our people.
“We appeal for continued cooperation from residents, as addressing the challenge requires joint responsibility.”
Government has also advise residents of the flood prone areas, especially those within the coastline to relocate for their safety.
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