en.Wedoany.com Reported - Recently, the Abidjan Fourth Bridge project constructed by China State Construction Engineering Corporation (CSCEC) received the final acceptance report issued by the Ivory Coast National Highway Authority, marking the official and successful completion of this major infrastructure project. As a key livelihood project under the Ivory Coast national development plan, the approximately 7-kilometer-long project aims to alleviate travel pressure for about 2 million residents by improving the traffic layout of the economic capital, Abidjan.
The project officially commenced in August 2018. After over five years of construction, it opened to traffic in January 2024. The route connects the Yopougon, Adjame, and Plateau districts. The main works include the main bridge spanning the Banco Bay, an interchange, three roundabout flyovers, and ancillary facilities. Among these, the main bridge crossing the lagoon is the widest bridge in Abidjan. After opening, the travel time across the Banco Bay, which previously took over an hour, has been reduced to 10 minutes, significantly improving urban transportation efficiency.
During project execution, CSCEC overcame numerous key technical challenges under complex geological conditions. In response to the thick silt soft soil layer and all-sand layer geology of the Banco Bay, the construction team successfully completed the installation of large-diameter steel casing in the fluid-plastic silt stratum and utilized reverse circulation drilling rigs to achieve the construction of extra-long, large-diameter pile foundations. Furthermore, the project adopted a bottomed steel cofferdam construction technique to solve the challenge of building underwater pile caps and enhanced the durability of pile foundations in the marine erosion environment.
As an economic capital with a population of approximately 6 million, Abidjan has seen rapid growth in vehicle ownership, with traffic congestion long constraining urban development. During the 34th Africa Cup of Nations in 2024, the bridge's operation effectively supported event traffic management. Throughout the project, CSCEC also established a talent development mechanism with local architectural universities to cultivate young professional talent for Ivory Coast.
The successful completion of this project represents a breakthrough for Chinese enterprises in the field of large-scale bridge construction in Ivory Coast. Through the delivery of hard connectivity infrastructure and the transfer of soft connectivity technologies, the project has enhanced the brand influence of China State Construction in the West African market and laid a technical foundation for deeper participation in the joint construction of the Belt and Road Initiative and regional infrastructure expansion.
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