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RUFIJI BASIN WATER OFFICE (RBWO)

The Rufiji Basin Water Office (RBWO) was established after the inauguration of the first Basin Water Board (RBWB) on the 14/9/1993.  It is one of the nine river basins declared in 1992 by Minister responsible for water affairs.  The Office has been established in accordance to the Act No.11 of 2009.  The Rufiji Basin Water Office has its Headquarters in Iringa Municipal Town.  RBWO is under the Ministry of Water and Irrigation. All its workers are employed by this MoWI.

There are ten members of the RBWB.  They are drawn from public institutions and the private sector (including representatives of NGO’s, Farmers and Livestock keepers, and women).  The Minister of Water and Irrigation appoints the Chairman and the members of the Board.

The main objectives of the Office are in accordance to the National Water Law namely:

  • To act as principal executors of the Water Resources Management Act No.11 of 2009.
  • To carry out research pertaining to Water Resources Management in the

DESCRIPTION OF THE RUFIJI BASIN

The Rufiji Basin covers an area of 183,791 square kilometres (about 20% of Tanzania).  The river drains into the Indian Ocean.  The Basin is situated between Longitudes 33o55’E and 39o25’E and between Latitudes 5o35,S and 10o45’S.  The altitude of the basin rises from 0 at the Indian Ocean to above 2,960 meters above mean sea level (mamsl) in the highlands in Mbeya Region.

The land use in the Basin includes agriculture, mining, forestry, livestock keeping, fishing, wild life, navigation and human settlements.

The Rufiji Basin comprises of four major rivers namely:

  • The Great Ruaha River                      -  85,554 km2
  • The Kilombero River                        -  40,330 km2
  • The Luwegu River                         -  25,288 km2
  • The Rufiji (lower part of main river)  -  32,619 km2

The climate in the basin differs from the coast to the highlands in the upper parts of the catchments. For instance, except for the lower parts of the basin, which experience two rainy seasons, the largest portion is characterized by unimodal rainfall.  The Average rainfall varies from 400mm in the drier areas to 2000mm in wetter parts. 

Regions and Districts covered by the Rufiji River Basin

DISTRICT

REGION

MAJOR RIVER




Manyoni

Singida

Kisigo

Singida (rural)

Singida

Kisogo

Dodoma (Urban)

Dodoma

Kisigo, Bubu

Dodoma (Rural)

Dodoma

Kisigo, Bubu, Fufu

Mpwapwa

Dodoma

Great Ruaha, Mwega

Mbeya (Rural)

Mbeya

Mkoji

Mbeya (Urban)

Mbeya

Gwiri

Mbarali

Mbeya

Great Ruaha, Mbarali, Halali, Kimani, Ndembera, Chimala, Mkoji, Kimbi

Makete

Iringa

Great Ruaha, Kimani, Chimala

Njombe

Iringa

Mbarali, Halali, Kilombero, Ruhudji, Mnyera, Mpanga

Mufindi

Iringa

Little Ruaha, Kilombero, Kigogo Ruaha, Kihansi

Iringa (Rural)

Iringa

Little Ruaha, Lukosi, Great Ruaha

Iringa (Urban)

Iringa

Little Ruaha

Kilosa

Morogor

Great Ruaha & Mikumi

Kilombero

Morogoro

Kilombero, Furua, Kihansi, Lumemo

Morogoro (Rural)

Morogoro

Great Ruaha

Ulanga

Morogoro

Luhombero

Kisarawe

Pwani

Rufiji

Temeke

Dar es salaam

Rufiji

Mkuranga

Pwani

Rufiji

Rufiji

Pwani

Rufiji

Liwale

Lindi

Luwegu, Rufiji, Lihangwa

Songea (Rural)

Ruvuma

Luwegu

Namtumbo

Ruvuma

Luwegu, Mbarang’andu

Tunduru

Ruvuma

Mbarang’andu

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Basin is characterised by many wetlands both in the highlands and the lowlands.  The major wetlands are the Utengule in the Great Ruaha and the Kibasila in the Kilombero.  The mangrove in the Rufiji river delta, are also a special type of vegetation in the Basin.