The Ouham River is a river in Central Africa

Central Africa

Central Africa is a core region of the African continent which includes Burundi, the Central African Republic, Chad, the Democratic Republic of the Congo, and Rwanda....

, and one of the main headwaters of the Chari River

Chari River

The Chari or Shari River is a 949-kilometer-long river of central Africa. It flows from the Central African Republic through Chad into Lake Chad, following the Cameroon border from N'Djamena, where it joins the Logone River waters....

. The Ouham originates in the Central African Republic

Central African Republic

The Central African Republic , is a landlocked country in Central Africa. It borders Chad in the north, Sudan in the north east, South Sudan in the east, the Democratic Republic of the Congo and the Republic of the Congo in the south, and Cameroon in the west. The CAR covers a land area of about ,...

 between the prefecture Nana-Mambéré

Nana-Mambéré

Nana-Mambéré is one of the 14 prefectures of the Central African Republic. It covers an area of 26,600 km² and has a population of 184,594 . The capital is Bouar. It was part of Kamerun where was a German colony between 1911–1916....

 and the prefecture Ouham-Pendé

Ouham-Pendé

Ouham-Pendé is one of the 14 prefectures of the Central African Republic. Its capital is Bozoum. The region contains several ghost towns such as Goroumo, Beogombo Deux and Paoua due to government forces ransacking them and armed bandits killing all the male inhabitants over the years from 2005 to...

, crossing into Chad

Chad

Chad , officially known as the Republic of Chad, is a landlocked country in Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon and Nigeria to the southwest, and Niger to the west...

 where it joins the Chari about 25 km north Sarh

Sarh

Sarh is the third largest city in Chad, after N'Djamena and Moundou. It is the capital of Moyen-Chari region and the department of Barh Köh. It lies 350 miles south-east of the capital Ndjamena on the Chari River...

. Tributaries are Baba, Fafa, Nana Bakassa, Nana Barya.

Hydrometry

The flow of the river observed over 33 years (1951-84) in Moïssala a town in Chad about 150 km above the mouth of the Chari. The at Moïssala observed average annual flow during this period was 480 m³ / s fed by an area of ​​about 67,600 km ² approximately 95% of the total catchment area of the River.



The average monthly flow of the river Sara at hydrological station of Moïssala (in m³ / s )< br /> (Calculated using the data for a period of 33 years, 1951-84)