The river system of the Bani
|Drain over||Niger → Atlantic|
|origin||Confluence of the Baoulé and Bagoé rivers at
|muzzle||At Mopti in Niger,
|Height difference||21 m|
|Bottom slope||0.05 ‰|
|Catchment area||129,400 km²|
| Outflow at the Douna gauge (1134300)
A Eo : 101,600 km²
Location: 150 km above the mouth
HHQ (max. Month Ø)
|0 l / s
22.8 m³ / s
513 m³ / s
5 l / (s km²)
1940 m³ / s
4090 m³ / s
|Residents in the catchment area||500,000|
Satellite photo of the Bani
The Bani is a river in Mali .
It is a right tributary of the Niger with a length of 430 kilometers. It arises 100 kilometers east of Bamako as the confluence of the Baoulé and Bagoé rivers and flows into the Niger near the city of Mopti .
Every year the river floods an otherwise arid area in which 500,000 people live. It is planned to build the Talo Dam , a five meter high and 295 meter long dam wall near the city of San in the Ségou region , in order to be able to store the river water over the year. In the event of a flood, the wall would be flooded and water should be drained off in a controlled manner in the dry. Among the residents of Djenné living downstream, for example , the plan led to violent protests.
Already Herodotus mentions the Bani as "navigable river" to a Persian delegation had traveled in search of the gold country.
The flow rate of the river was measured over 72 years (1922–94) in Douna , a town in Mali, about 150 kilometers upstream from the confluence with the Niger. The mean annual flow rate observed in Douna during this period was 513 m³ / s.