Featured
By Augustine Idiagbon
FOR decades, Lagos has lived with floods. But the floods of recent weeks have presented a different reality—one that has left roads impassable, homes submerged, businesses crippled and thousands of residents counting losses that may never be fully quantified.
From Ikeja to Agungi, Lekki, Ajah, Ikorodu and several other parts of Nigeria’s commercial capital, relentless downpours have transformed major highways into rivers and residential communities into temporary lakes.
Motorists abandoned vehicles in waist-deep water. Shop owners watched floodwaters sweep through merchandise. Families hurriedly evacuated homes as water levels rose beyond doorsteps.
For many Lagosians, the rainy season has become synonymous with fear.
Yet, the unfolding crisis was hardly unexpected.
Months before the first torrential rains arrived, the Nigerian Meteorological Agency, NiMet, warned that the 2026 rainy season would be characterised by above-normal rainfall in many parts of Nigeria, a longer rainy season in Lagos, delayed cessation of rainfall and increased risks of localised flooding in low-lying communities. The agency urged governments and residents to prepare adequately.
The 2026 Seasonal Climate Prediction released by NiMet specifically projected a longer-than-normal rainy season for Lagos, while cautioning that rainfall during the year could trigger flooding and waterlogging in vulnerable communities if preventive measures were not taken.
The National Emergency Management Agency, NEMA, responding to the forecast, announced that it would activate flood preparedness measures nationwide and convene experts to translate the seasonal prediction into practical disaster mitigation strategies for states and communities.
Those warnings have now become reality.
A city under pressure,
Lagos occupies a unique geographical position.
Bordered by the Atlantic Ocean and crisscrossed by lagoons, creeks and wetlands, much of the city lies barely above sea level.
Urban planners have long described Lagos as naturally vulnerable to flooding.
However, experts insist that nature alone cannot explain the increasing devastation.
Rapid urbanisation, shrinking wetlands, blocked drainage channels, indiscriminate waste disposal and the destruction of natural ecosystems have combined with increasingly intense rainfall to produce a perfect storm.
Every heavy rainfall now exposes the weaknesses in the city’s drainage infrastructure.
Roads disappear beneath floodwaters. Traffic stretches for kilometres. Economic activities grind to a halt. Schools close.
Businesses lose valuable trading hours.
For daily wage earners, every flooded day translates directly into lost income.
Government responds
Recognising the severity of the situation, Lagos State Governor, Babajide Sanwo-Olu, personally visited some of the worst-hit communities in the Lekki corridor.
The visits were more than symbolic. They underscored the government’s acknowledgement that flooding has become one of the state’s most pressing environmental and economic challenges.
The governor assured residents that drainage expansion, flood-control projects and continuous desilting of canals remained priorities under his administration.
At the same time, the Commissioner for the Environment and Water Resources, Tokunbo Wahab, repeatedly reminded residents that government efforts alone would not solve the problem.
He emphasised that indiscriminate dumping of refuse into drainage channels remains one of the biggest contributors to urban flooding.
According to him, blocked drainage systems significantly reduce the capacity of canals to evacuate storm water during periods of heavy rainfall.
Waste in drains, flood on the streets
Perhaps no issue has generated more concern among environmental managers than the persistent habit of dumping refuse into the drainage systems.
The Lagos State Waste Management Authority, LAWMA, led by its Managing Director, Muyiwa Gbadegesin, has repeatedly appealed to residents to dispose of waste responsibly.
The agency warns that every plastic bottle, nylon bag, discarded furniture and household refuse dumped into drains eventually reduces water flow.
During heavy rainfall, the consequence becomes obvious.
Water seeks alternative routes.
Unfortunately, those routes are often roads, homes and businesses.
Environmental officials argue that many of the flood incidents witnessed across Lagos could have been significantly reduced if drainage channels had remained free-flowing.
The disappearing mangroves
While poor waste management continues to receive attention, another silent contributor to flooding is attracting increasing concern among environmental scientists.
Mangroves.
Stretching across coastal communities, mangrove forests have historically served as nature’s flood defence system.
Their intricate root systems absorb excess water, reduce wave energy, stabilise shorelines and slow the movement of floodwaters.
But across Lagos and other coastal states, large expanses of mangroves have disappeared.
They have been cleared for housing estates, road construction, sand filling and commercial developments.
Environmental experts describe the loss as one of the most dangerous ecological changes occurring along Nigeria’s coastline.
According to Leslie Adogame, Executive Director of Sustainable Research and Action for Environmental Development, SRADeV, mangrove destruction removes one of nature’s most effective flood-control mechanisms.
He argues that protecting mangroves should become a national environmental priority.
Beyond flood control, mangroves support fisheries, protect biodiversity, absorb significant amounts of carbon dioxide and help communities adapt to climate change.
Environmentalists warn that every hectare of mangrove lost increases the vulnerability of surrounding communities to flooding.
Climate change raises the stakes
Scientists caution that what Lagos is experiencing is part of a broader global climate pattern.
Climate change is increasing the frequency and intensity of extreme weather events worldwide.
Warmer atmospheric temperatures allow the air to retain more moisture, resulting in heavier rainfall over shorter periods.
Coastal cities such as Lagos therefore face a double challenge.
They must contend with more intense rainfall from above while simultaneously dealing with rising sea levels and tidal influences from the Atlantic Ocean.
This means that even well-designed drainage infrastructure could become overwhelmed during exceptionally heavy storms.
Climate adaptation, therefore, can no longer remain a future discussion.
It has become an urgent necessity.
Beyond government
Flood management requires more than engineering.
It demands behavioural change.
Urban planners argue that enforcement against illegal developments on drainage alignments must continue.
Building approvals must respect natural waterways.
Environmental laws must be consistently enforced.
Citizens must abandon the practice of turning drains into refuse dumps.
Corporate organisations also have responsibilities.
Experts urge private developers to preserve wetlands where possible, invest in sustainable drainage systems and support ecological restoration projects.
Communities, too, have roles to play through neighbourhood sanitation exercises and protection of local drainage channels.
Counting the hidden cost
The true cost of flooding cannot be measured only in destroyed roads and damaged vehicles.
There are hidden losses.
Small businesses lose customers.
School children miss classes.
Families spend savings replacing damaged furniture and household appliances.
Insurance claims increase.
Public health risks multiply as floodwaters mix with sewage, exposing residents to water-borne diseases.
Mental stress also rises as families repeatedly rebuild after every major rainfall.
These costs rarely appear in official statistics.
Yet they represent billions of naira in lost productivity annually.
A defining moment
The recent flooding presents Lagos with a defining choice.
It can continue responding to floods after they occur, or it can invest more aggressively in prevention.
The warnings were issued.
The rains came.
The floods followed.
The next chapter depends on what governments, businesses and citizens choose to do before the next storm arrives.
For Nigeria’s commercial capital city, the lesson is becoming increasingly clear.
Flooding is no longer merely a seasonal inconvenience.
It is an urban resilience challenge, an environmental challenge and an economic challenge whose solutions demand science, planning, responsible governance and collective action.
The rains may not stop anytime soon.
But with stronger institutions, better planning, restored ecosystems and more environmentally responsible citizens, the devastating impact of these rains can certainly be reduced.
F.O
Tags: flood Lagos rains NEMA