Across sub-Saharan Africa, urban flooding has evolved from a seasonal hydrological event into a persistent governance crisis. In Ghana, particularly within the Greater Accra Metrop
The report indicates that across sub-Saharan Africa, urban flooding has evolved from a seasonal hydrological event into a persistent governance crisis. In Ghana, particularly within the Greater Accra Metropolitan Area, flooding is no longer an occasional inconvenience but a recurring urban emergency with significant human, economic, environmental, and public health consequences.
It further notes that between 2015 and 2025, flooding in Greater Accra alone resulted in economic losses exceeding GHS 6.3 billion (approximately USD 510 million). These losses include an estimated GHS 1.8 billion in damage to small and medium-sized enterprises (SMEs), GHS 2.1 billion in damage to public infrastructure, and GHS 800 million in damage to residential property. Nationally, Ghana loses an estimated USD 200 million annually to natural disasters—equivalent to nearly 2 per cent of GDP—while more than 2 million people are affected each year.
The persistence of these losses demonstrates that flooding in Ghana is no longer merely an environmental problem; it is fundamentally a governance challenge requiring coordinated institutional action.
The devastating floods that followed the heavy rains in early June 2026 once again exposed the vulnerability of Accra’s urban landscape. Communities including Kaneshie, Odawna, Adabraka and Kwame Nkrumah Circle were submerged within hours as roads became rivers and businesses came to a standstill. According to the National Disaster Management Organization (NADMO), approximately 3,000 residents in the Odawna area were directly affected. By 30 June 2026, 12 fatalities had been confirmed, increasing to 13 the following day. Meanwhile, the Ghana National Fire Service reported rescuing more than 470 people trapped by the floodwaters.
These recurring disasters raise legitimate questions about the effectiveness of existing flood mitigation investments. The Greater Accra Resilient and Integrated Development (GARID) Project, financed by the World Bank, was initially approved at USD 350 million to address flooding within the Odaw Basin. However, USD 65 million was later reallocated to Ghana’s COVID-19 response, reducing the available funding to approximately USD 285 million. By June 2025, USD 118 million of the USD 127 million drawn down had already been spent, yet flooding continues to devastate many of the same communities.
The recurring floods are not simply the result of heavy rainfall. Rather, they reflect deep institutional fragmentation, weak enforcement of planning regulations, inadequate sanitation systems, and persistent behavioural challenges.
Weak Land Use Enforcement and Institutional Fragmentation
A major driver of flooding is the persistent disconnect between municipal spatial planning authorities and informal land allocation practices by traditional authorities. This institutional disconnect continues to permit construction within wetlands, natural waterways and statutory buffer zones. Field assessments and environmental mapping consistently reveal permanent structures occupying natural drainage channels. Unfortunately, political influence, social status and weak enforcement often delay or prevent the removal of illegal developments. Consequently, floodwaters are diverted into neighbouring communities, increasing downstream vulnerability.
The country’s growing housing deficit has further encouraged informal settlements on public lands and waterways. Many landlords have converted temporary or substandard structures into rental accommodation under deplorable sanitary conditions. Numerous compounds lack basic toilet facilities, resulting in the indiscriminate discharge of liquid waste into open drains and surrounding environments.
Solid waste remains one of the greatest contributors to Accra’s flood problem. Approximately 70 percent of the city’s primary drainage channels are heavily silted with refuse, reducing their carrying capacity by nearly 50 percent. Responsibility for cleaning drains and maintaining communal spaces is often unclear. Disputes among landlords, tenants and residents frequently delay waste collection, allowing refuse to accumulate in gutters and waterways. Following flood events, communities are exposed to elevated public health risks. Between 2015 and 2025, flood-related diseases, including cholera and other waterborne infections, generated an estimated GHS 360 million in public health losses.
Urban expansion has significantly outpaced regulatory enforcement. Only about 35 percent of buildings within Accra possess approved building permits, while Metropolitan, Municipal and District Assemblies (MMDAs) inspect fewer77 than 20 percent of structures annually. Rapid urbanization has also replaced natural permeable surfaces with concrete, increasing stormwater runoff while eliminating natural retention areas that previously absorbed excess rainfall.
Despite years of flooding, preparedness remains inadequate. Less than 15 percent of flood-prone communities possess functional early warning systems or documented emergency response plans. Evidence increasingly demonstrates that household and community behaviour significantly influences flood risk. Yet sanitation and drainage maintenance continue to be perceived largely as the sole responsibility of government. Community participation in pre-rainy season clean-up exercises remains inconsistent, with fewer than 40 percent of households regularly participating in communal labour. Illegal waste disposal and unauthorized construction have also become socially tolerated, partly because enforcement is often perceived as inconsistent or politically selective.
Flood management in7 Ghana suffers from divided institutional mandates but shared consequences. Responsibility for land use planning, sanitation, drainage maintenance, disaster management and environmental protection is distributed across several institutions whose mandates frequently overlap without effective coordination. As a result, agencies often operate in silos, data sharing remains weak, and accountability becomes diffused. Meteorological forecasts are not consistently integrated into urban planning decisions, while digital technologies capable of monitoring illegal developments and flood risks remain underutilized. Ultimately, flooding in Accra reflects not only engineering failures but also governance failures.
Flooding in Accra is not only the result of institutional failures and inadequate infrastructure; it is also driven by persistent behavioural practices that increase urban flood risk. Indiscriminate disposal of solid waste into drains, illegal construction AI waterways, weak compliance with sanitation by-laws, and limited community participation in routine clean-up exercises continue to undermine flood prevention efforts. Many residents perceive sanitation, drainage maintenance and environmental protection as the sole responsibility of government, resulting in low levels of civic ownership and accountability. Furthermore, inconsistent enforcement of regulations has gradually normalized behaviours such as littering, encroachment on wetlands and unauthorized developments. Addressing these behavioural challenges requires sustained public education, consistent enforcement of environmental laws, incentives for community participation, and social behaviour change campaigns that promote shared responsibility for protecting public spaces and drainage infrastructure. Building a culture of environmental stewardship is essential if Ghana is to achieve long-term urban flood resilience.
