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Barrage Dam
A barrage is a type of low-head, diversion dam which consists of a number of large gates that can be opened or closed to control the amount of water passing through. This allows the structure to regulate and stabilize river water elevation upstream for use in irrigation and other systems. The gates are set between flanking piers which are responsible for supporting the water load of the pool created. The term '' barrage'' is borrowed from the French word "barrer" meaning "to bar". Dam construction Barrage dams have a series of gates that control the amount of water passing through it. A barrage dam can be used to divert water for irrigation needs or limit the amount of water down-stream. In most cases, a barrage dam is built near the mouth of the river. The site of dam construction needs to be thoroughly investigated to ensure that the foundation is strong enough to support the dam and has low possibility of failing. When dams are created, they are given a safety rating depe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headworks
Headworks is a civil engineering term for any structure at the head or diversion point of a waterway. It is smaller than a barrage and is used to divert water from a river into a canal or from a large canal into a smaller canal. at Web archive An example is the Horseshoe falls at the start of the Llangollen canal. Historically the phrase "headworks" derives from the traditional approach of diverting water at the start of an irrigation network and the location of these processes at the "head of the works". See also * List of barrages and headworks in Pakistan This is a list of barrages and headworks in Pakistan. Khyber Pakhtunkhwa Punjab Sindh See also *List of dams and reservoirs in Pakistan *List of canals in Pakistan References External links Barrages in Pakistan- at ''Pakistan Tourism ... References Civil engineering Irrigation {{Civil-engineering-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weir
A weir or low head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. Weirs are also used to control the flow of water for outlets of lakes, ponds, and reservoirs. There are many weir designs, but commonly water flows freely over the top of the weir crest before cascading down to a lower level. Etymology There is no single definition as to what constitutes a weir and one English dictionary simply defines a weir as a small dam, likely originating from Middle English ''were'', Old English ''wer'', derivative of root of ''werian,'' meaning "to defend, dam". Function Commonly, weirs are used to prevent flooding, measure water discharge, and help render rivers more navigable by boat. In some locations, the terms dam and weir are synonymous, but normally there is a clear distinction made between the structures. Usually, a dam is designed specifically to impound water behind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diversion Dam
A diversion dam is a dam that diverts all or a portion of the flow of a river from its natural course. Diversion dams do not generally impound water in a reservoir; instead, the water is diverted into an artificial water course or canal, which may be used for irrigation or return to the river after passing through hydroelectric generators, flow into a different river or be itself dammed forming an onground or groundwater reservoir or a storm drain. An early diversion dam is the Ancient Egyptian Sadd el-Kafara Dam at Wadi Al-Garawi, which was located about twenty five kilometres south of Cairo. Built around 2600 BC for flood control, the structure was 102 metres long at its base and 87 metres wide. It was destroyed by a flood while it was still under construction.Günther Garbrecht: "Wasserspeicher (Talsperren) in der Antike", ''Antike Welt'', 2nd special edition: ''Antiker Wasserbau'' (1986), pp.51-64 (52f.) Classification Diversion dams are one of three classifications ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British India
The provinces of India, earlier presidencies of British India and still earlier, presidency towns, were the administrative divisions of British governance on the Indian subcontinent. Collectively, they have been called British India. In one form or another, they existed between 1612 and 1947, conventionally divided into three historical periods: *Between 1612 and 1757 the East India Company set up Factory (trading post), factories (trading posts) in several locations, mostly in coastal India, with the consent of the Mughal emperors, Maratha Empire or local rulers. Its rivals were the merchant trading companies of Portugal, Denmark, the Netherlands, and France. By the mid-18th century, three ''presidency towns'': Madras, Bombay and Calcutta, had grown in size. *During the period of Company rule in India (1757–1858), the company gradually acquired sovereignty over large parts of India, now called "presidencies". However, it also increasingly came under British government over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assiut Barrage
The Assiut Barrage is a dam on the Nile River in the city of Assiut in Upper Egypt (250 miles to the south of Cairo). It was completed in 1903. Background It was designed by the famous British engineer Sir William Willcocks who also concurrently designed and built the Aswan Low Dam, the first Nile reservoir, about up-stream. The Assiut dam was constructed between 1898 and 1903, and in conjunction with the reservoir, provided for the diversion of river water into Egypt's largest irrigation canal, the Ibrahimiya Canal, during the low water season. The dam was estimated to cost £525,000 but by the time of its completion it actually cost £870,000. The main contractor for the project was the British contractor John Aird & Co.Egypt bond The project's massive size involved 2,400,000 cubic yards of earthwork, 125,000 cubic yards of concrete, 85, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muhammad Ali Of Egypt
Muhammad Ali Pasha al-Mas'ud ibn Agha, also known as Muhammad Ali of Egypt and the Sudan ( sq, Mehmet Ali Pasha, ar, محمد علي باشا, ; ota, محمد علی پاشا المسعود بن آغا; ; 4 March 1769 – 2 August 1849), was the Albanian Ottoman governor and de facto ruler of Egypt from 1805 to 1848, considered the founder of modern Egypt. At the height of his rule, he controlled all of Egypt, Sudan, Hejaz and the Levant. He was a military commander in an Albanian Ottoman force sent to recover Egypt from a French occupation under Napoleon. Following Napoleon's withdrawal, Muhammad Ali rose to power through a series of political maneuvers, and in 1805 he was named '' Wāli'' (viceroy) of Egypt and gained the rank of Pasha. As '' Wāli'', Muhammad Ali attempted to modernize Egypt by instituting dramatic reforms in the military, economic and cultural spheres. He also initiated a violent purge of the Mamluks, consolidating his rule and permanently ending the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ottoman Empire
The Ottoman Empire, * ; is an archaic version. The definite article forms and were synonymous * and el, Оθωμανική Αυτοκρατορία, Othōmanikē Avtokratoria, label=none * info page on book at Martin Luther University) // CITED: p. 36 (PDF p. 38/338) also known as the Turkish Empire, was an empire that controlled much of Southeast Europe, Western Asia, and Northern Africa between the 14th and early 20th centuries. It was founded at the end of the 13th century in northwestern Anatolia in the town of Söğüt (modern-day Bilecik Province) by the Turkoman tribal leader Osman I. After 1354, the Ottomans crossed into Europe and, with the conquest of the Balkans, the Ottoman beylik was transformed into a transcontinental empire. The Ottomans ended the Byzantine Empire with the conquest of Constantinople in 1453 by Mehmed the Conqueror. Under the reign of Suleiman the Magnificent, the Ottoman Empire marked the peak of its power and prosperity, as well a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barthélemy Prosper Enfantin
Barthélemy, or Barthélémy is a French name, a cognate of Bartholomew. Notable people with this name include: Given name * Barthélemy (explorer), French youth who accompanied the explorer de La Salle in 1687 * Barthélémy Bisengimana, Congolese chief of staff to President Mobutu Sese Seko of Zaire * Barthélemy Boganda (1910–1959), politician and advocate for the independence of Oubangui-Chari, which later became the Central African Republic * Barthélemy d'Herbelot de Molainville (1625–1695), French Orientalist * Barthélemy Faujas de Saint-Fond (1741–1819), French geologist and traveler * Barthélemy Hauréau (Jean-Barthélémy) (1812–1896), French historian and writer * Barthélemy Prosper Enfantin (1796–1864), French social reformer * Barthélémy Thomas Strafforello (1764–1845), French politician. Surname or title * Anatole Jean-Baptiste Antoine de Barthélemy (1821–1904), French archaeologist and numismatist * Auguste-Marseille Barthélemy (1796–186 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Maurice Adolphe Linant De Bellefonds
Louis Maurice Adolphe Linant de Bellefonds better known as Linant Pasha (Lorient, France, 23 November 1799 – Cairo 9 July 1883) was an explorer of Egypt and, as the chief engineer of Egypt's public works, 1831–1869, an influential engineer of the Suez Canal. He is listed as a founder of the Suez Canal Company. Biography Having taken advantage of a sound education that emphasized mathematics, drawing and painting, then having been given some experience at sea through the efforts of his father, Antoine-Marie, a naval officer, charting the coastal waters of Newfoundland, in 1814, aged fifteen. Having passed his entrance exams, young Linant embarked as a naval cadet on the frigate ''Cléopâtre'', engaged on a mission to Greece, Syria, Palestine and Egypt, which he spent making drawings and doing relief mapping. One of the artists attached to the expedition having suddenly died, Linant was commissioned to replace him, drawing sites and ruins in Athens, Constantinople, Ephesus, A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nile
The Nile, , Bohairic , lg, Kiira , Nobiin language, Nobiin: Áman Dawū is a major north-flowing river in northeastern Africa. It flows into the Mediterranean Sea. The Nile is the longest river in Africa and has historically been considered the List of rivers by length, longest river in the world, though this has been contested by research suggesting that the Amazon River is slightly longer.Amazon Longer Than Nile River, Scientists Say Of the world's major rivers, the Nile is one of the smallest, as measured by annual flow in cubic metres of water. About long, its drainage basin covers eleven countries: the Democratic Republic of the Congo, Tanzania, Burundi, Rwanda, Uganda, Kenya, Ethiopia, Erit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delta Barrage
The Delta Barrage is barrage-type dam that was constructed intermittently beginning in 1833 to its initial completion in 1862. Its purpose was to improve irrigation and navigation along the main Rosetta and Damietta branches of the Nile downstream of the point where they divide north of Cairo, Egypt. At its first operation however, the structure's foundations were found to be of such poor quality that its main irrigation purpose had to be largely abandoned for safety reasons. The barrages have been much maligned as only a romantic river crossing.Samir RaafatThe Delta Barrage Cairo Times, August 21, 1997 Despite its ignoble beginnings, initial testing and later repairs were undertaken in the 1880s following the British Occupation of Egypt. These repairs and their continued maintenance would largely provide the barrages' original intent. The overall effects were largely unexpected and startling. In addition to a great reduction in costs of lifting water to irrigate fields, and lab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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