Impacts environnementaux de l'inondation à Cotonou : cas du quartier Avotrou

The concentration with Cotonou of the economic activities, administrative and political had as a consequence a fast increase in population. This increase involved an increased requirement in housing. But, this need, the policies of housing who existed were really not with the top of waitings. Thus to place itself, the populations occupied the easily flooded zones without worrying about the attack which it carries to the operation of the natural ecosystems. Worse, the State which should play the part of organizer without any provision posed of the inconsistent acts such as the allotment of certain easily flooded zones (DOSSOU - YOVO O., 2001) thus supporting the installation of the populations in entirely hydromorphic zones. Among the many difficulties to which must face the populations living in these hydromorphic and marshy zones, there is that of the flood which remains and remains unverifiable. Most of Cotonou's habitations (30 %) undergoes the consequences of water of raw and that does not cease worsening because of the anarchistic installation of the populations ever more many .and with the rather low incomes.We estimate that the phenomenon of the flood which constitutes a quite delicate and high-risk field requires sometimes only little efforts and few investments when it is a question of saving human lives, to reduce the material losses and to protect public health. It is besides why we hope through this study to leave the paths beaten in approaching not only problems involved in environment populations continuations with the floods but also by proposing a new axis of strategies through space planning and it cleansing of their care of life.