The Ivorian city of Abidjan faces significant sanitation and stormwater management challenges, particularly in districts where natural drainage systems and limited infrastructure expose communities to regular flooding and health risks.

To support in resolving these challenges, Dar – in a strategic partnership with Gauff Engineering – is providing preliminary design and functional tender documentation services to improve and extend sanitation and stormwater drainage systems in Abidjan. This important initiative targets four urban areas: Yopougon, Abobo, Locodjro, and Anyama, where drainage and sewage systems have been unable to meet the demands of a growing population and changing climate.

• In Yopougon, the project focuses on transforming approximately five kilometres of natural drainage channels into lined systems, linking them to existing infrastructure to ensure more reliable water flow and reduce the risk of urban flooding.
• In Abobo, the effort centres on developing a robust drainage network that will serve eleven low-lying basins frequently affected by seasonal floods.
• The intervention in Locodjro replaces dangerous natural ravines with a fully engineered system covering 45 hectares, addressing both community safety and erosion control.
• Meanwhile, in Anyama, the scope includes the construction of a large-scale sewage trunk line that will connect four northern pump stations to a new wastewater treatment facility capable of processing 123,000 cubic meters per day. The network will extend over 15 kilometres of gravity and force mains, creating a significant improvement in sanitation coverage and environmental health.

Together with Gauff Engineering, Dar is proud to support this critical project, which embodies our commitment to thoughtful, resilient, and inclusive infrastructure development that protects vulnerable communities, restores environmental balance, and supports the sustainable growth of Abidjan.