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