The Nile River is the longest river in the world. From its major source,
Lake Victoria in east central Africa, the White Nile flows generally
north through Uganda and into Sudan where it meets the Blue Nile at
Khartoum, which rises in the Ethiopian highlands. From the confluence of
the White and Blue Nile, the river continues to flow northwards into
Egypt and on to the Mediterranean Sea. From Lake Victoria to the
Mediterranean Sea the length of the Nile is 5584 kilometers (3470
miles). From its remotest headstream, the Ruvyironza River in Burundi,
the river is 6671 kilometers (4145 miles) long. The river basin has an
area of more than 3,349,000 square kilometers (1,293,049 square miles).
The White Nile
The Ruvyironza, regarded as the ultimate source of the Nile, is one of
the upper branches of the Kagera River. The Kagera follows the boundary
of Rwanda northward, turns where the borders of Rwanda, Uganda and
Tanzania meet, and drains into Lake Victoria. On leaving Lake Victoria
at the site of the now-submerged Owen Falls, the Nile rushes for 483
kilometers (300 miles) over rapids and cataracts, at first northwest and
then west, until it enters Lake Albert. The section between the two
lakes is called the Victoria Nile. The river leaves the northern end of
Lake Albert as the Albert Nile, flows through northern Uganda, and at
the Sudan border becomes the Bahr al Jabal. At its junction with the
Bahr al Ghazal, the river becomes the Bahr al Abyad, or the White Nile.
Various tributaries flow through the Bahr al Ghazal district. At
Khartoum the White Nile is joined by the Blue Nile, or Bahr al Azraq.
These are so named because of the colour of the water.
The Blue Nile
The Blue Nile (in Arabic the Al Bahr al-Azraq), 1529 kilometers (950
miles) long, gathers its volume mainly from Lake T’ana, in the Ethiopian
Highlands; it is known here as the Abbai. The Blue Nile rises at a
spring site upstream of Lake Tana in Ethiopia, 2,150 meters (7,054 feet)
above sea level. The river flows west then north until it eventually
meets the White Nile at Khartoum. A length of 800 kilometers/500 miles
is navigable during high water times. Some 80% of Sudan's electricity is
provided by hydroelectric schemes at Roseires and Sennar, and these dams
provide irrigation water for over 10,000 square kilometers/3,860 square
miles of the Gezira Plain.
The Main Nile
From Khartoum the Nile flows northeast 322 kilometers (200 miles). Below
Khartoum it is joined by the ‘Atbarah River. The black sediment brought
down by the 'Atbarah and Blue Nile Rivers used to settle in the Nile
delta making it very fertile. This process historically occurred during
the annual flooding of the Nile in the summer months. However, the
opening of the Aswan High Dam in the early 1970s allowed for control of
the flooding and reduced sediment deposits in the river as these now
settle in Lake Nasser. During its course from the confluence of the
'Atbarah through the Nubian Desert, the river makes two deep bends. From
Khartoum to Aswan there are six cataracts. The Nile is navigable to the
second cataract, a distance of 1,545 kilometers (960 miles). The delta
of the Nile is 190 kilometers (120 miles) wide. The water level behind
the Aswan Dam fell from 170 meters (558 feet) in 1979 to 150 meters (492
feet) in 1988, threatening Egypt's hydroelectric power generation.
Nile River Quick Facts
(From White Nile Source to Mouth) 6695
kilometers (4184 miles).
The Nile gets its name from the Greek word
", meaning River Valley.
: The White Nile: Lake Victoria, Uganda. The
Blue Nile: Lake Tana, Ethiopia.
: The Nile and its tributaries flow though
nine countries. The White Nile flows though Uganda, Sudan, and Egypt.
The Blue Nile starts in Ethiopia. Zaire, Kenya, Tanzania, Rwanda, and
Burundi all have tributaries, which flow into the Nile or into lake
: The major cities that are located on the edge
of the Nile and White Nile are: Cairo, Gondokoro, Khartoum, Aswan,
Thebes/Luxor, Karnak, and the town of Alexandria lies near the Rozeta
: The major dams
on the Nile are Roseires Dam, Sennar Dam, Aswan High Dam, and Owen Falls
: The Nile River's average discharge is about
300 million cubic meters per day.