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.
24-619: The Asan Barrage is a barrage in the Uttarakhand - Himachal Pradesh border region in Doon Valley , ( Dehradun district ), northern India , situated at the confluence of the Eastern Yamuna Canal and the Asan River and about 11 km (7 mi) from Dakpathar , and 28 km. northwest of Dehradun in Uttarakhand . The barrage is 287.5m long and has water throughout the year which
48-658: A tidal lagoon or estuary as a method to capture tidal power from tidal flows are known as tidal barrages . The English usage of the term barrage originates from the Delta Barrage across the Nile branches north of Cairo, built between 1833 and 1862 by the French Linant de Bellefonds and Eugène Mougel employed by the Egyptian Public Works Department, with assistance from Barthélemy Prosper Enfantin and with
72-403: A Canadian violin ensemble Barrage (film) , a 2017 film Barrage (manga) , a 2012 shōnen manga by Kōhei Horikoshi Barrage (DC Comics) , a character from DC Comics Barrage (Marvel Comics) , a character from Marvel Comics Other uses [ edit ] Barrage (military science) , a wide range of structures, devices, or measures for destroying something to constrain or impede
96-486: A design hydraulic head of 18 m (59 ft). Once discharged from the power station, the water is conducted by the canal 13 km (8 mi) to the 72 MW Khara Power Station at 30°21′02″N 77°36′06″E / 30.35056°N 77.60167°E / 30.35056; 77.60167 ( Khara Power Plant ) in Uttar Pradesh . The Khara Power Station contains three 24 MW Francis turbine -generators and
120-465: A has a net head of 43 m (141 ft). The dam creates the Asan Reservoir , also called Dhalipur Lake . The lake is popular for bird watching and 53 species are known to make a habitat there, 19 species are migratory from Eurasia . The Asan river is a river fed by the streams of the western part of the Doon Valley . The northern section of the river is known locally as the 'Tons' (a misnomer,
144-599: A large number of migratory birds, including birds that are extremely endangered and in the IUCN Red list . Since 2020 the wetland has been designated as a protected Ramsar site . The best time to visit the Barrage is between October and December, and between mid-March to the end of April. The barrage is open all days of the week, from 8am to 6pm. Boating and bird-watching are two activities that tourists enjoy here. Download coordinates as: Barrage (dam) The term barrage
168-449: Is borrowed from the French word "barrer" meaning "to bar". Barrage dams have a series of gates that control the amount of water passing through. A barrage dam can be used to divert water for irrigation needs or limit the amount of water downstream. 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
192-670: Is fed from the river Asan and the discharge channel of the river Yamuna. Since 2020 it has been declared as Uttarakhand 's first Ramsar site . Directly behind the barrage on its eastern flank, water reenters the Eastern Yamuna Canal on the west side of the Yamuna River . At a distance of 4.5 km (3 mi) from the barrage on the canal, water reaches the 30 MW Kulhal Power Plant at 30°25′43″N 77°37′46″E / 30.42861°N 77.62944°E / 30.42861; 77.62944 ( Kulhal Power Plant ) . The power plant contains three 10 MW Kaplan turbine -generators and has
216-454: Is substantial evidence, including case studies, that points to dam construction having environmental impact , there are also studies that show less damage than expected. Looking at plankton near some dams has shown that plankton is able to continue to live through changes to its habitat. Changes such as the pH levels near dams have been recorded, and plankton was minimally affected. Other species, however, such as trout, are affected more, due to
240-452: Is that a dam is built for water storage in a reservoir , which raises the level of water significantly. A barrage is built for diverting water, and raises the water level by only a few feet. The latter is generally built on flat terrain across wide, often meandering rivers. Similar distinctions are used in Egypt, where it is noted: "In this system a "dam" is a structure that forms a reservoir for
264-568: The actual Tons River is much larger and flows into the Yamuna in the Jaunsar-Bawar region at Kalsi); originates from the southern slopes of Mussoorie . There are several streams here, that gradually merge into one river that emerges from Robber's Cave . The river here is in a U-shaped valley meandering slightly in a south-westerly direction. The river flows through Bijapur canal ; a major water pumping site of Dehradun that provides water to houses in
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#1732852110341288-752: The blessing of the Egyptian Viceroy of the Ottoman Empire , Muhammad Ali . When the British, after 1882, had to look after these structures generally referred to as barrages , they adopted the term in their language and continued to use it for similar structures built by themselves across the Nile (Zefta Barrage and Assiut Barrage , both completed in 1902). Since the British in the Egyptian Public Works Department kept close relations to their counterparts in British India ,
312-431: The case of dam failure. New designs have been made that are able to sustain greater amounts of water. An improved wedge-shaped block technology was developed by Rafael Moran and Miguel Toledo. The new structure is able to withstand severe flooding and uses less materials, reducing the production cost. Dam construction has several effects on the economy and the environment . Specifically, there are several ways in which
336-412: The environment can be affected by dam construction. Species richness is usually measured to determine the effect of a dam on the ecosystem surrounding it. To observe the species richness, scientists collect data on the fish and animal populations before and after construction of the dam. With that data, they are able to see how the population size increased or decreased. In some cases, it was found that
360-438: 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 depending on the type of dam, location, and the possible effects in case of failure. The ratings are from one to five, five having the highest danger rating. The rating of five would be given to dams built with a town or city downstream, which would have higher possibility of injury to people in
384-662: The lower section it is known as the 'Asan'. It flows into a relatively flat section which feeds the Asan Barrage, the waters of which drain into the Yamuna at Paonta Sahib in Himachal Pradesh . The Asan River has been identified with the Asmanvati of the Rigveda . The Bird Sanctuary was established in 1967 as a manmade wetland where rivers Yamuna and Asan converged. This area attracts
408-425: The movement of troops and forces. Barrage (artillery) , a line or barrier of artillery or depth charge fire Barrage (dam) , a type of dam Barrage balloon , a tethered balloon used as an obstacle to attacking aircraft Tidal barrage , an artificial obstruction at the mouth of a tidal watercourse Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with
432-435: The newly-built dam. It has been shown that dams can have an effect on the migration of fish, leading to less reproduction. There are many small factors that can have a relatively large effect on the river ecosystems, such as species richness, water volume and nutrient levels. Different experiments have been done that looked into each of these individually and were able to determine why some dams cause such effects. While there
456-492: The physical dam inhibiting their migration and reproduction paths. Barrage dams control the amount of water going through them, leading to differences in the amount of water upstream and downstream from the dam. This discrepancy has different effects on different species native to the area. While there can be reduced flow downstream, there can also be problems upstream. Dams can have buildup of pressure that fish are not accustomed to, and they migrate further upstream, causing part of
480-465: The river to have reduced population sizes. Although there are environmental effects that come with building new dams, there are also economic benefits from a dam. Without dams, it would be much harder to farm and grow livestock. The irrigation technology that comes with building a dam can exceed the risk factor. According to the World Commission on Dams , a key difference between a dam and a barrage
504-412: The species richness was less downstream from a dam compared to further upstream. Inhibiting the volume of water was shown to be detrimental to species diversity and richness. Also, at the entrance of dams, there are fewer nutrients due to the high-water flow reducing the ecosystem's reproduction standard. Along with species richness, plankton diversity can be an indicator of the ecosystem's ability to handle
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#1732852110341528-455: The storage of water during the annual flood period of the Nile in order to supplement the natural flow of the river during the low-water period; a "barrage" merely raises the river or canal level, when necessary, to the height required for adequate flow into the canals that take off above it. Barrages are usually larger than the headworks of irrigation and navigation canals, with which they are associated. Barrages that are commonly used to dam
552-543: The term barrages made its way to present-day India and Pakistan, as well as to the Middle East and thus generally into English. barrage [REDACTED] Look up barrage in Wiktionary, the free dictionary. Barrage may refer to: Entertainment [ edit ] Barrage (Barrage album) , by band Barrage Barrage (Paul Bley album) , 1965 Barrage (group) ,
576-455: The western part of the town through two water canals. It then moves on to Tapkeshwar Mahadev , a popular Shiva shrine before becoming a more shallow, broad valley near Premnagar. The river proceeds south-west, receiving the waters of several streams flowing southward from the northern range spanning Vikasnagar – Mussoorie ; and northward from the lower Sivalik Hills that separate The Doon Valley from Saharanpur district of Uttar Pradesh . In
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