Accra: Every rainy season, residents of Accra brace themselves for a familiar and painful reality: flooded homes, destroyed businesses, traffic gridlock, disrupted livelihoods, and, tragically, the loss of human lives. Despite decades of desilting drains, dredging waterways, demolishing structures on watercourses, and investing in storm drains, flooding remains one of the capital city's most persistent challenges.
According to Ghana Web, the continued recurrence of floods suggests that Ghana's approach to flood management requires a fundamental shift. Rather than relying primarily on demolition exercises and drainage expansion, Ghana should seriously consider adopting an integrated engineering solution similar to Malaysia's internationally acclaimed SMART Tunnel-a project that transformed flood management in Kuala Lumpur while simultaneously addressing urban traffic congestion.
Flooding has become one of the most expensive and deadly urban problems confronting Ghana. Communities such as Alajo, Odawna, Kaneshie, Circle, Adabraka, Mallam, Weija, Dansoman, and parts of East Legon frequently experience severe flooding during heavy rains. The June 3, 2015 disaster remains one of the darkest moments in Ghana's history, with torrential rains causing extensive flooding around the Kwame Nkrumah Circle area, triggering an explosion at a fuel station that claimed more than 150 lives and left hundreds injured. The tragedy exposed the devastating consequences of inadequate urban flood management.
Successive governments have invested substantial resources in dredging drains, desilting channels, and demolishing structures obstructing waterways. While these measures are necessary, they have not delivered a lasting solution. Unauthorised construction on waterways undeniably contributes to flooding. Buildings erected within floodplains reduce natural water retention capacity and obstruct drainage paths. However, attributing Accra's flooding solely to structures on waterways oversimplifies a much larger challenge.
Accra's flooding issues are compounded by several interconnected factors, including rapid urbanisation without corresponding infrastructure expansion, inadequate stormwater management systems, extensive concretisation and paving of surfaces, poor waste disposal practices, encroachment on wetlands, climate change, and limited water retention facilities. Even if every unauthorised structure on waterways were removed today, Accra would still experience significant flooding because the city's drainage infrastructure was not designed to handle current runoff volumes and rainfall intensities.
Before the construction of the SMART Tunnel, Kuala Lumpur faced flooding challenges remarkably similar to those confronting Accra today. Throughout the 1970s, 1980s, and 1990s, flash floods regularly affected the Malaysian capital. Rapid urban growth had significantly increased impermeable surfaces, while traditional drainage improvements alone proved inadequate to address the scale of the problem. Recognising the need for a more innovative and integrated solution, the Malaysian Government launched the Stormwater Management and Road Tunnel Project.
The SMART Tunnel stretches approximately 9.7 kilometres and performs two critical functions: easing traffic congestion and acting as a flood diversion tunnel. During severe storms, the tunnel is temporarily closed to vehicles and converted entirely into a flood diversion channel. Since its commissioning, the SMART Tunnel has successfully prevented numerous major flood incidents and protected billions of dollars' worth of economic activity.
Although Kuala Lumpur and Accra differ geographically and economically, they share several important characteristics, such as rapid urban growth, heavy seasonal rainfall, and loss of natural water retention areas. However, Malaysia has consistently invested in long-term urban flood management infrastructure, and Kuala Lumpur's drainage systems are more technologically advanced and integrated.
Accra's topography naturally channels stormwater toward low-lying areas before discharge into the Gulf of Guinea. A Ghanaian SMART Tunnel could deliver several benefits, such as diverting excess floodwater, reducing flooding in vulnerable communities, improving urban mobility, protecting economic activity, and building climate resilience.
Recommendations for Ghana include commissioning a comprehensive feasibility study for a SMART Tunnel system, developing an integrated flood management master plan, strengthening urban planning enforcement, restoring and protecting wetlands, improving waste management, pursuing public-private partnerships, and establishing a national flood infrastructure fund.
The annual flooding experienced in Accra demonstrates that conventional approaches alone are no longer sufficient. Malaysia faced a similar predicament and responded with innovation and long-term strategic planning. Ghana now has an opportunity to invest in transformative solutions capable of protecting lives and preparing Accra for the realities of a changing climate. The question is whether Ghana is prepared to embrace the scale of innovation required to secure its future.