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Sennar Dam
The Sennar Dam is an irrigation dam on the Blue Nile near the town of Sennar in the Al Jazirah region of Sudan. The dam is long and has a maximum height of . It was designed by the Scottish engineer Sir Murdoch MacDonald, begun in 1914 and completed in 1925 by the British contractor S Pearson & Sons. Construction Work on the dam started in 1914, but was almost immediately interrupted by the outbreak of World War I. Work recommenced in 1919, the contractors being the Sudan Construction Company, who carried on the work until 1921 when work was stopped for a second time as it became clear that the estimated cost of the scheme would be considerably exceeded. In 1922, with further funds obtained, six British firms were invited to tender to complete the dam and build the connecting canal system. S Pearson and Sons was successful, and contracted to complete the dam by July 1925. Oswald Longstaff Prowde was a resident engineer and John Watson Gibson Sir John Watson Gibson (9 Aug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Nile
The Blue Nile (; ) is a river originating at Lake Tana in Ethiopia. It travels for approximately through Ethiopia and Sudan. Along with the White Nile, it is one of the two major tributaries of the Nile and supplies about 85.6% of the water to the Nile during the rainy season. Course The distance of the river from its source to its confluence has been variously reported as being between and . This uncertainty might result from the fact that the river flows through a series of virtually impenetrable gorges cut in the Ethiopian Highlands to a depth of some . According to materials published by the Central Statistical Agency, the Blue Nile has a total length of , of which are inside Ethiopia. In Ethiopia The Blue Nile originates at Lake Tana in Ethiopia (where it is called the Abay River). The river flows generally south before entering a canyon about long, about from Lake Tana, which is a tremendous obstacle for travel and communication between north and south Ethiop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sennar
Sennar ( ar, سنار ') is a city on the Blue Nile in Sudan and possibly the capital of the state of Sennar. It remains publicly unclear whether Sennar or Singa is the capital of Sennar State. For several centuries it was the capital of the Funj Kingdom of Sennar. Overview Sennar had an estimated population of 100,000 inhabitants in the early 19th century. The modern town lies SSE of the ruins of the ancient capital of the Funj Kingdom, southeast of Khartoum, the Capital of Sudan. The city is home to Sinnar University, established in 1977. Climate Despite receiving over of rainfall per year, the extreme heat and high evaporation means Sennar still has a borderline hot arid climate (Köppen ''BWh'') a little below a hot semi-arid climate (''BSh''). Demographics Notable people * Nasra bint ʿAdlan, Sudanese royalty See also * Railway stations in Sudan Railway stations in Sudan include: Maps * UNHCR Atlas Map * UN Map * Different maps Aljabalan map * * Sudan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al Jazirah (state)
Gezira (), also spelt Al Jazirah, is one of the 18 states of Sudan. The state lies between the Blue Nile and the White Nile in the east-central region of the country. It has an area of 27,549 km2. The name comes from the Arabic word for island. Wad Madani is the capital of the state. Gezira is known as an irrigated cotton-producing state as it is a well-populated area that is suitable for agriculture. History The area was at the southern end of Nubia and little is known about its ancient history and only limited archaeological work has been conducted in this area. It was part of the kingdom of Alodia for several centuries and with that state's collapse in the early sixteenth century, it became the centre of the Funj Sultanate. Katfia in Gezira was the place where the Wad Habuba Revolt took place in April 1908. The Gezira Scheme was a program launched in 1925 to foster cotton farming. At that time the Sennar Dam and numerous irrigation canals were built. Al Jazirah be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sudan
Sudan ( or ; ar, السودان, as-Sūdān, officially the Republic of the Sudan ( ar, جمهورية السودان, link=no, Jumhūriyyat as-Sūdān), is a country in Northeast Africa. It shares borders with the Central African Republic to the southwest, Chad to the west, Egypt to the north, Eritrea to the northeast, Ethiopia to the southeast, Libya to the northwest, South Sudan to the south and the Red Sea. It has a population of 45.70 million people as of 2022 and occupies 1,886,068 square kilometres (728,215 square miles), making it Africa's List of African countries by area, third-largest country by area, and the third-largest by area in the Arab League. It was the largest country by area in Africa and the Arab League until the 2011 South Sudanese independence referendum, secession of South Sudan in 2011, since which both titles have been held by Algeria. Its Capital city, capital is Khartoum and its most populated city is Omdurman (part of the metropolitan area of Khar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravity Dams
A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it. Gravity dams are designed so that each section of the dam is stable and independent of any other dam section. Characteristics Gravity dams generally require stiff rock foundations of high bearing strength (slightly weathered to fresh), although in rare cases, they have been built on soil foundations. The bearing strength of the foundation limits the allowable position of the resultant force, influencing the overall stability. Also, the stiff nature of the gravity dam structure is unforgiving to differential foundation settlement, which can induce cracking of the dam structure. Gravity dams provide some advantages over embankment dams, the main advantage being that they can tolerate minor over-topping flows without damage, as the concre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irrigation
Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow Crop, crops, Landscape plant, landscape plants, and Lawn, lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been developed by many cultures around the world. Irrigation helps to grow crops, maintain landscapes, and revegetation, revegetate disturbed soils in dry areas and during times of below-average rainfall. In addition to these uses, irrigation is also employed to protect crops from frost, suppress weed growth in grain fields, and prevent soil consolidation. It is also used to cool livestock, reduce dust, dispose of sewage, and support mining operations. Drainage, which involves the removal of surface and sub-surface water from a given location, is often studied in conjunction with irrigation. There are several methods of irrigation that differ in how water is supplied to plants. Surface irrigation, also known as gravity irri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1844 To The 1920s
In the Philippines, it was the only leap year with 365 days, as December 31 was skipped when 1845 began after December 30. Events January–March * January 15 – The University of Notre Dame, based in the city of the same name, receives its charter from Indiana. * February 27 – The Dominican Republic gains independence from Haiti. * February 28 – A gun on the USS ''Princeton'' explodes while the boat is on a Potomac River cruise, killing two United States Cabinet members and several others. * March 8 ** King Oscar I ascends to the throne of Sweden–Norway upon the death of his father, Charles XIV/III John. ** The Althing, the parliament of Iceland, is reopened after 45 years of closure. * March 9 – Giuseppe Verdi's opera ''Ernani'' debuts at Teatro La Fenice, Venice. * March 12 – The Columbus and Xenia Railroad, the first railroad planned to be built in Ohio, is chartered. * March 13 – The dictator Carlos Antonio López becomes first President of Paraguay. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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