In West Africa, large dams are satisfying the need of States, a need that increases with climate variability and population explosion. With about 150 large dams, West Africa is considered to be poorly equipped with large water infrastructure compared to the rest of the continent and elsewhere. The regional dialogue project on major infrastructure in the water sector launched by WRCC seeks to strengthen regional integration and aims to provide basin organizations with tools for dialogue with a view to accompany the development of their investment plans in a consultation framework.