Country | Rivers | Catchment 1000 km2 | Sediment yield t/km2/year | Sediment load 1000 t/year | Sand Mi m3/year |
Cote d’Ivoire | Sassandra, Comoe, Cavally, Bandama | 340 | 65 | 22,100 | 2.13 |
Ghana | Pra, Volta | 440 | 70 | 17,900 | 1.33 |
Togo | Mono | 29 | 60 | 1600 | 0.18 |
Benin | Oueme | 48 | 50 | 2400 | 0.23 |
Nigeria | Ogun, Niger, Cross | 2263 | 80 | 48,600 | 3.3 |