Rehabilitation of four irrigation dams and development of the plains located downstream

Lot 1: Tchaloni and Sologo
Rehabilitation of four irrigation dams and development of the plains located downstream
Context & Issues

The project concerns rehabilitating Tchaloni dam (formerly known as Gbémou) and renovating the works located downstream, including concrete canals. Furthermore, the project involves creating a network of access and service tracks criss-crossing the area. For lack of reliable documents, the storage capacity of the dam has not been determined, but it seems perfectly sufficient to irrigate the potential surface area concerned (600 ha).

Sologo dam, which was built in 1974, was rehabilitated in 1996 thanks to funding from GIZ21. This dam is in relatively good condition and has a capacity of 3,500,000 m3. It is used to irrigate 250 ha via a network of earth canals, which are fed by three run-of-the-river water intakes. However, the irrigation area is hampered by failures on some structures, resulting in irrigation and drainage issues in certain places and meaning that the plots located furthest from the dam no longer receive any water. This prevents a second crop from being produced on 150 ha of land.