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| | World Water Assessment Programme | Case Studies | Senegal River Basin, Guinea Mali Mauritania |
 | | It is drained by the 1,800 km-long Senegal river, the second longest river of West Africa, and its main tributaries, the Bafing, Bakoye and Faleme Rivers, all three of which have their source in the Fouta Djallon mountains (Guinea). |
 | | The Diama dam, located near the mouth of the Senegal River in the delta, serves to block seawater intrusion and thereby protect water and irrigation wells, and raises the level of the upstream water body, creating reserves to enable irrigation and double cropping. |
 | | This deterioration is caused primarily by eutrophication due to a reduction of the flow velocity and oxygenation of the water, due to the new dams and dikes, the proliferation of water weeds, and chemical and biological pollution related to the discharge of wastewater and pesticides into the river. |
| www.unesco.org /water/wwap/case_studies/senegal_river/index.shtml (1797 words) |
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