In 1906, 2 steel bridges were built across the Zou and the Ouémé Rivers, under the authority of the RAILWAY OFFICE of Benin (“Office de Chemins de Fer du Bénin”).
The line Bénin-Niger links Cotonou to Parakou.

The Zou bridge consists of 3 spans of 20 m and the Ouémé bridge has 8 spans of 20 m.

Important repair works became necessary
in 1994 after many years of use. The work was executed by the French company AFRICAINE DE MONTAGE. This was done without interruption of the traffic, within 26 weeks.

The entire structure was grit-blasted and protected with ZINGA. The French engineering company SOFRERAIL acted as the controlling organism.

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