Logone River

Logone River
The Logone-Birni, from the book The earth and its inhabitants, Africa 1892
Map showing the Logone River within the Chari River drainage basin
Location
Countries	Chad Cameroon
City	Kousséri
Physical characteristics
Source
• location	Central African Republic
Mouth
• location	Chari River at N'Djaména, Chad
• coordinates	12°6′22″N 15°2′7″E
• elevation	364 m (1,194 ft)
Length	1,000 km (620 mi)
Basin size	78,000 km2 (30,000 sq mi)
Discharge
• average	492 m3/s (17,400 cu ft/s)
Basin features
Protection status
Ramsar Wetland
Official name	Plaines d'inondation du Logone et les dépressions Toupouri
Designated	14 November 2005
Reference no.	1560

The Logon or Logone River is a major tributary of the Chari River. The Logone's sources are located in the western Central African Republic, northern Cameroon, and southern Chad. It has two major tributaries: the Pendé River (Eastern Logone) in the prefecture Ouham-Pendé in the Central African Republic and the Mbéré River (Western Logone) in the east of Cameroon. Many swamps and wetlands surround the river.

The Logone forms part of the international border between Chad and Cameroon. Settlements on the river include Kousseri and N'Djaména, which is located at the confluence with the Chari.

Hydrometry

The flow of the river has been observed over 38 years (1951–84) in Bongor, Chad, downstream of the union with the Pendé about 450 km (280 mi) above the confluence with the Chari. Average annual flow during this period was 492 m³/s (17,400 cu ft/s) fed by an area of about 73,700 km² (28,500 sq mi) approximately 94.5% of the total catchment area of the river. Due to the strong evaporation, the amount of water flowing into the stream decreases. In N'Djamena, the flow reduces to 400 m³/s (14,000 cu ft/s).

Average monthly flow at Bongor (in m³ / s )
(data from 1948 to 1986)

Population

In the eastern lower Logone valley formed out of the Kotoko population several historic sultanates (Kousseri, Logone-Birni, Makari-Goulfey and others) which were vassals of the Bornu or Baguirmi inside the borders of modern-day Cameroon.

History

In Chad, the administrative regions Logone Oriental and Logone Occidental named after the river. Ober-Logone was an administrative district of the German colony of Cameroon.

River Logone, Cameroon

Logone on the border between Cameroon and Chad. January 2013.

September 2013 dam failure and flood

On the night of September 17 to September 18, 2013, heavy rains caused a rupture of the dam along the Logone River at the town of Dougui, Kai Kai District in the Far North Region of Cameroon. This caused initial evacuations of people to the banks of the dam. On September 27, a second rupture in the dam 4 km (2.5 mi) from the first rupture started flooding the area, and nearly 9,000 people were displaced.

• 
  Logone River
• 
  Mototaxi
• 
  Canoe
• 
  Stone block on the banks of the Zébé Marao Cameroon
• 
  Piroge towards the shore opposite Zébé Marao Cameroon
• 
  Fishing in Zébé Marao