Knowledge (XXG)

Dam

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1379:(NPS), "Non-jurisdictional—means a structure which does not meet the minimum criteria, as listed in the Federal Guidelines for Dam Safety, to be included in dam safety programs. The non-jurisdictional structure does not receive a hazard classification and is not considered for any further requirements or activities under the NPS dam safety program." Small dams can be dangerous individually (i.e., they can fail), but also collectively, as an aggregation of small dams along a river or within a geographic area can multiply risks. Graham's 1999 study of US dam failures resulting in fatalities from 1960 to 1998 concluded that the failure of dams between 6.1 and 15 m high (typical height range of smaller dams) caused 86% of the deaths, and the failure of dams less than 6.1 m high caused 2% of the deaths. Non-jurisdictional dams may pose hazards because their design, construction, maintenance, and surveillance is unregulated. Scholars have noted that more research is needed to better understand the environmental impact of small dams (e.g., their potential to alter the flow, temperature, sediment and plant and animal diversity of a river). 2688: 2359:
environmental conditions and beta diversity patterns of each biological group. Both replacement and richness differences contributed to high values of total beta diversity for fish (average = 0.77) and phytoplankton (average = 0.79), but their relative importance was more associated with the replacement component for both biological groups (average = 0.45 and 0.52, respectively). A study conducted by de Almeida, R. A., Steiner, M.T.A and others found that, while some species declined in population by more than 30% after the building of the dam, others increased their population by 28%. Such changes may be explained by the fact that the fish obtained "different feeding habits, with almost all species being found in more than one group.
1215: 1532: 335: 2655: 1127: 757: 29: 2708: 658: 574: 1021: 259:. Initiated sometime between 1750 and 1700 BC, it was made of packed earth – triangular in cross-section, 580 m (1,900 ft) in length and originally 4 m (13 ft) high – running between two groups of rocks on either side, to which it was linked by substantial stonework. Repairs were carried out during various periods, most importantly around 750 BC, and 250 years later the dam height was increased to 7 m (23 ft). After the end of the 5128:"However, a reservoir, at worst, can only advance an earthquake which would have occurred otherwise too. The magnitude of forces associated with an earthquake is several orders bigger compared to the additional load of water in the reservoir. The change in stresses due to water load is too small to cause fracture in the Earth's crust (Srivastava, 1993). Therefore, the presence of a reservoir does not increase the severity of an earthquake." 1094:
place by gravity, i.e., there is no tension in the upstream face of the dam holding the top of the dam down. The designer does this because it is usually more practical to make a dam of material essentially just piled up than to make the material stick together against vertical tension. The shape that prevents tension in the upstream face also eliminates a balancing compression stress in the downstream face, providing additional economy.
1077: 5866: 1554:. Conventional water retention dams can serve this purpose, but due to cost, a tailings dam is more viable. Unlike water retention dams, a tailings dam is raised in succession throughout the life of the particular mine. Typically, a base or starter dam is constructed, and as it fills with a mixture of tailings and water, it is raised. Material used to raise the dam can include the tailings (depending on their size) along with soil. 5965: 1886: 1958: 2216: 1878: 505: 1598: 127:, dating to 3,000 BC. Egyptians also built dams, such as Sadd-el-Kafara Dam for flood control. In modern-day India, Dholavira had an intricate water-management system with 16 reservoirs and dams. The Great Dam of Marib in Yemen, built between 1750 and 1700 BC, was an engineering wonder, and Eflatun Pinar, a Hittite dam and spring temple in Turkey, dates to the 15th and 13th centuries BC. The 873: 2378:, due to changes in water load and/or the height of the water table. However, this is a mistaken assumption, because the relatively marginal stress attributed to the water load is orders of magnitude lesser than the force of an earthquake. The increased stress from the water load is insufficient to fracture the Earth's crust, and thus does not increase the severity of an earthquake. 1625: 421: 1055:, in the United States is an example of the type. This method of construction minimizes the amount of concrete necessary for construction but transmits large loads to the foundation and abutments. The appearance is similar to a single-arch dam but with a distinct vertical curvature to it as well lending it the vague appearance of a concave lens as viewed from downstream. 2321: 1682: 964: 1313: 267:(c. 115 BC) who undertook further improvements, creating a structure 14 m (46 ft) high, with five spillways, two masonry-reinforced sluices, a settling pond, and a 1,000 m (3,300 ft) canal to a distribution tank. These works were not finished until 325 AD when the dam permitted the irrigation of 25,000 acres (100 km). 1158: 654:, artificial channels for conducting water, were kept open in the dam. The first was near the base of the dam on its east side. A second sluice was put in on the west side of the dam, about 20 ft (6.1 m) above the base. To make the switch from the lower to upper sluice, the outlet of Sand Lake was blocked off. 535:, a low-lying country, dams were often built to block rivers to regulate the water level and to prevent the sea from entering the marshlands. Such dams often marked the beginning of a town or city because it was easy to cross the river at such a place, and often influenced Dutch place names. The present Dutch capital, 1040:, in Canada, is a constant radius dam. In a constant-angle dam, also known as a variable radius dam, this subtended angle is kept constant and the variation in distance between the abutments at various levels is taken care of by varying the radii. Constant-radius dams are much less common than constant-angle dams. 2358:
At the same time, however, some particular dams may contribute to the establishment of better conditions for some kinds of fish and other aquatic organisms. Studies have demonstrated the key role played by tributaries in the downstream direction from the main river impoundment, which influenced local
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Impact is assessed in several ways: the benefits to human society arising from the dam (agriculture, water, damage prevention and power), harm or benefit to nature and wildlife, impact on the geology of an area (whether the change to water flow and levels will increase or decrease stability), and the
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One of the best places for building a dam is a narrow part of a deep river valley; the valley sides can then act as natural walls. The primary function of the dam's structure is to fill the gap in the natural reservoir line left by the stream channel. The sites are usually those where the gap becomes
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dams were widely used in the early part of the industrial revolution and in frontier areas due to ease and speed of construction. Rarely built in modern times because of their relatively short lifespan and the limited height to which they can be built, timber dams must be kept constantly wet in order
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in the impoundment. The downstream design refers to the successive raising of the embankment that positions the fill and crest further downstream. A centerlined dam has sequential embankment dams constructed directly on top of another while fill is placed on the downstream side for support and slurry
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for areas with massive amounts of water flow but less material available for a pure gravity dam. The inward compression of the dam by the water reduces the lateral (horizontal) force acting on the dam. Thus, the gravitational force required by the dam is lessened, i.e., the dam does not need to be so
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or drainage route from an impervious layer (such as solid bedrock) up to just below the surface. They can be constructed of a variety of materials to include bricks, stones, concrete, steel or PVC. Once built, the water stored behind the dam raises the water table and is then extracted with wells. A
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production, flood protection, and water storage. Small dams can be particularly useful on farms to capture runoff for later use, for example, during the dry season. Small scale dams have the potential to generate benefits without displacing people as well, and small, decentralised hydroelectric dams
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For this type of dam, it is essential to have an impervious foundation with high bearing strength. Permeable foundations have a greater likelihood of generating uplift pressures under the dam. Uplift pressures are hydrostatic pressures caused by the water pressure of the reservoir pushing up against
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Two types of single-arch dams are in use, namely the constant-angle and the constant-radius dam. The constant-radius type employs the same face radius at all elevations of the dam, which means that as the channel grows narrower towards the bottom of the dam the central angle subtended by the face of
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and monitoring of seepage from drains in and around larger dams is useful to anticipate any problems and permit remedial action to be taken before structural failure occurs. Most dams incorporate mechanisms to permit the reservoir to be lowered or even drained in the event of such problems. Another
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designed to control the flow through the spillway. There are several types of spillway. A "service spillway" or "primary spillway" passes normal flow. An "auxiliary spillway" releases flow in excess of the capacity of the service spillway. An "emergency spillway" is designed for extreme conditions,
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is a type of dam briefly experimented with around the start of the 20th century which uses steel plating (at an angle) and load-bearing beams as the structure. Intended as permanent structures, steel dams were an (failed) experiment to determine if a construction technique could be devised that was
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of the forces of gravity acting on the dam and water pressure on the dam acts in a line that passes upstream of the toe of the dam. The designer tries to shape the dam so if one were to consider the part of the dam above any particular height to be a whole dam itself, that dam also would be held in
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Such a large concrete structure had never been built before, and some of the techniques were unproven. The torrid summer weather and the lack of facilities near the site also presented difficulties. Nevertheless, Six Companies turned over the dam to the federal government on 1 March 1936, more than
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Some of these purposes are conflicting, and the dam operator needs to make dynamic tradeoffs. For example, power generation and water supply would keep the reservoir high, whereas flood prevention would keep it low. Many dams in areas where precipitation fluctuates in an annual cycle will also see
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spillway" is a low embankment designed to be overtopped and washed away in the event of a large flood. The elements of a fuse plug are independent free-standing blocks, set side by side which work without any remote control. They allow increasing the normal pool of the dam without compromising the
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create dams primarily out of mud and sticks to flood a particular habitable area. By flooding a parcel of land, beavers can navigate below or near the surface and remain relatively well hidden or protected from predators. The flooded region also allows beavers access to food, especially during the
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A saddle dam is an auxiliary dam constructed to confine the reservoir created by a primary dam either to permit a higher water elevation and storage or to limit the extent of a reservoir for increased efficiency. An auxiliary dam is constructed in a low spot or "saddle" through which the reservoir
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A barrage dam is a special kind of dam that consists of a line of large gates that can be opened or closed to control the amount of water passing the dam. The gates are set between flanking piers which are responsible for supporting the water load, and are often used to control and stabilize water
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During the Middle Ages, dams were built in the Netherlands to regulate water levels and prevent sea intrusion. In the 19th century, large-scale arch dams were constructed around the British Empire, marking advances in dam engineering techniques. The era of large dams began with the construction of
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In the latter half of the nineteenth century, significant advances in the scientific theory of masonry dam design were made. This transformed dam design from an art based on empirical methodology to a profession based on a rigorously applied scientific theoretical framework. This new emphasis was
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Reservoirs held behind dams affect many ecological aspects of a river. Rivers topography and dynamics depend on a wide range of flows, whilst rivers below dams often experience long periods of very stable flow conditions or sawtooth flow patterns caused by releases followed by no releases. Water
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Countries worldwide consider small hydropower plants (SHPs) important for their energy strategies, and there has been a notable increase in interest in SHPs. Couto and Olden (2018) conducted a global study and found 82,891 small hydropower plants (SHPs) operating or under construction. Technical
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In a gravity dam, the force that holds the dam in place against the push from the water is Earth's gravity pulling down on the mass of the dam. The water presses laterally (downstream) on the dam, tending to overturn the dam by rotating about its toe (a point at the bottom downstream side of the
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side wall) are more important. The most desirable place for an arch dam is a narrow canyon with steep side walls composed of sound rock. The safety of an arch dam is dependent on the strength of the side wall abutments, hence not only should the arch be well seated on the side walls but also the
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Despite some positive effects, the construction of dams severely affects river ecosystems leading to degraded riverine ecosystems as part of the hydrological alteration. One of the main ways to reduce the negative impacts of reservoirs and dams is to implement the newest nature-based reservoir
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and store all or most of it below the surface for extended use in a localized area. In some cases, they are also built to prevent saltwater from intruding into a freshwater aquifer. Underground dams are typically constructed in areas where water resources are minimal and need to be efficiently
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defines a jurisdictional dam as 25 feet or greater in height and storing more than 15 acre-feet or a dam that stores 50 acre-feet or greater and is six feet or more in height (section 72-5-32 NMSA), suggesting that dams that do not meet these requirements are non-jurisdictional. Most US dams,
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Roman engineers built dams with advanced techniques and materials, such as hydraulic mortar and Roman concrete, which allowed for larger structures. They introduced reservoir dams, arch-gravity dams, arch dams, buttress dams, and multiple arch buttress dams. In Iran, bridge dams were used for
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and undiscovered species in the area, and the replacement of the original environment by a new inland lake. As a result, the construction of dams have been opposed in various countries with some, such as Tasmania's Franklin Dam project, being cancelled following environmentalist campaigns.
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Common uses for cofferdams include the construction and repair of offshore oil platforms. In such cases, the cofferdam is fabricated from sheet steel and welded into place under water. Air is pumped into the space, displacing the water and allowing a dry work environment below the surface.
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A dam is non-jurisdictional when its size (usually "small") excludes it from being subject to certain legal regulations. The technical criteria for categorising a dam as "jurisdictional" or "non-jurisdictional" varies by location. In the United States, each state defines what constitutes a
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A fixed-crest dam is a concrete barrier across a river. Fixed-crest dams are designed to maintain depth in the channel for navigation. They pose risks to boaters who may travel over them, as they are hard to spot from the water and create induced currents that are difficult to escape.
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Small dams incur risks similar to large dams. However, the absence of regulation (unlike more regulated large dams) and of an inventory of small dams (i.e., those that are non-jurisdictional) can lead to significant risks for both humans and ecosystems. For example, according to the
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Tummers, J. S., Winter, E., Silva, S., O'Brien, P., Jang, M. H., & Lucas, M. C. (2016). Evaluating the effectiveness of a Larinier super active baffle fish pass for European river lamprey Lampetra fluviatilis before and after modification with wall-mounted studded tiles.
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A typically small dam used to divert water for irrigation, power generation, or other uses, with usually no other function. Occasionally, they are used to divert water to another drainage or reservoir to increase flow there and improve water use in that particular area. See:
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model and early warning system for levee/dike failures. As a part of the development effort, full-scale dikes are destroyed in the IJkdijk fieldlab. The destruction process is monitored by sensor networks from an international group of companies and scientific institutions.
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Recently, agricultural development has concentrated on soil and water conservation and resulted in the construction of a multitude of dams of various capacities which tend to stabilize water flow in rivers and provide a significant amount of permanent and stable bodies of
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Environmental issues and management of waste in energy and mineral production: Proceedings of the Sixth International Conference on Environmental Issues and Management of Waste in Energy and Mineral Production: SWEMP 2000; Calgary, Alberta, Canada, May 30 – June 2,
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Roman engineers made routine use of ancient standard designs like embankment dams and masonry gravity dams. Apart from that, they displayed a high degree of inventiveness, introducing most of the other basic dam designs which had been unknown until then. These include
300:. The basic structure dates to the 2nd century AD and is considered one of the oldest water diversion or water regulating structures still in use. The purpose of the dam was to divert the waters of the Kaveri across the fertile delta region for irrigation via canals. 183:. This gravity dam featured an originally 9-metre-high (30 ft) and 1 m-wide (3.3 ft) stone wall, supported by a 50 m-wide (160 ft) earthen rampart. The structure is dated to 3000 BC. However, the oldest continuously operational dam is 80:
is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as
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at different elevations. At times of low electrical demand, excess generation capacity is used to pump water into the higher reservoir. When there is higher demand, water is released back into the lower reservoir through a turbine. (For example, see
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provided a good understanding of the principles behind dam design. In France, J. Augustin Tortene de Sazilly explained the mechanics of vertically faced masonry gravity dams, and Zola's dam was the first to be built on the basis of these principles.
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the Aswan Low Dam in Egypt in 1902. The Hoover Dam, a massive concrete arch-gravity dam, was built between 1931 and 1936 on the Colorado River. By 1997, there were an estimated 800,000 dams worldwide, with some 40,000 of them over 15 meters high.
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releases from a reservoir including that exiting a turbine usually contain very little suspended sediment, and this, in turn, can lead to scouring of river beds and loss of riverbanks; for example, the daily cyclic flow variation caused by the
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A dry dam, also known as a flood retarding structure, is designed to control flooding. It normally holds back no water and allows the channel to flow freely, except during periods of intense flow that would otherwise cause flooding downstream.
1277:(ICOLD) defines a "large dam" as "A dam with a height of 15 m (49 ft) or greater from lowest foundation to crest or a dam between 5 m (16 ft) metres and 15 metres impounding more than 3 million cubic metres (2,400  5007: 1089:
dam). The dam's weight counteracts that force, tending to rotate the dam the other way about its toe. The designer ensures that the dam is heavy enough that the dam's weight wins that contest. In engineering terms, that is true whenever the
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During an armed conflict, a dam is to be considered as an "installation containing dangerous forces" due to the massive impact of possible destruction on the civilian population and the environment. As such, it is protected by the rules of
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Natural dams often pose significant hazards to human settlements and infrastructure. The resulting lakes often flood inhabited areas, while a catastrophic failure of the dam could cause even greater damage, such as the failure of western
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Silva, S., Vieira-Lanero, R., Barca, S., & Cobo, F. (2017). Densities and biomass of larval sea lamprey populations (Petromyzon marinus Linnaeus, 1758) in north-western Spain and data comparisons with other European regions.
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and hydropower generation. Its construction required the loss of over a million people's homes and their mass relocation, the loss of many valuable archaeological and cultural sites, and significant ecological change. During the
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In the arch dam, stability is obtained by a combination of arch and gravity action. If the upstream face is vertical the entire weight of the dam must be carried to the foundation by gravity, while the distribution of the normal
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On a suitable site, a gravity dam can prove to be a better alternative to other types of dams. When built on a solid foundation, the gravity dam probably represents the best-developed example of dam building. Since the fear of
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A weir (sometimes called an "overflow dam") is a small dam that is often used in a river channel to create an impoundment lake for water abstraction purposes and which can also be used for flow measurement or retardation.
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Gravity dams are classified as "solid" or "hollow" and are generally made of either concrete or masonry. The solid form is the more widely used of the two, though the hollow dam is frequently more economical to construct.
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published a study of the cost of large dams – based on the largest existing dataset – documenting significant cost overruns for a majority of dams and questioning whether benefits typically offset costs for such dams.
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A diversionary dam is designed to divert all or a portion of the flow of a river from its natural course. The water may be redirected into a canal or tunnel for irrigation and/or hydroelectric power production.
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Ashley, Jeffrey T. F.; Bushaw-Newton, Karen; Wilhelm, Matt; Boettner, Adam; Drames, Gregg; Velinsky, David J. (March 2006). "The Effects of Small Dam Removal on the Distribution of Sedimentary Contaminants".
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embankments being constructed on top but toe to crest of another, moving the crest further upstream. This creates a relatively flat downstream side and a jagged upstream side which is supported by tailings
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component of the weight of the arch ring may be taken by the arch action, while the normal hydrostatic pressure will be distributed as described above. For this type of dam, firm reliable supports at the
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There are three raised tailings dam designs, the "upstream", "downstream", and "centerline", named according to the movement of the crest during raising. The specific design used is dependent upon
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to maintain their water retention properties and limit deterioration by rot, similar to a barrel. The locations where timber dams are most economical to build are those where timber is plentiful,
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of permanent dams, bridges, and similar structures. When the project is completed, the cofferdam will usually be demolished or removed unless the area requires continuous maintenance. (See also
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There is variability, both worldwide and within individual countries, such as in the United States, in how dams of different sizes are categorized. Dam size influences construction, repair, and
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with a capacity of 100 acre-feet or less and a surface area of 20 acres or less and with a height measured as defined in Rules 4.2.5.1. and 4.2.19 of 10 feet or less. In contrast, the state of
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C. J. Shiff (1972). M. Taghi Farvar; John P. Milton (eds.). "The Impact of Agricultural Development on Aquatic Systems and its Effect on the Epidemiology of Schistosomes in Rhodesia".
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of the water flowing over the spillway, leading to its failure. It was the inadequate design of the spillway and installation of fish screens that led to the 1889 over-topping of the
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West, but most have failed, been hidden under earth embankments, or been replaced with entirely new structures. Two common variations of timber dams were the "crib" and the "plank".
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also includes in the "large" category, dams which are between 5 and 15 m (16 and 49 ft) high with a reservoir capacity of more than 3 million cubic metres (2,400 
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Ritchie, A. C.; Warrick, J. A.; East, A. E.; Magirl, C. S.; Stevens, A. W.; Bountry, J. A.; Randle, T. J.; Curran, C. A.; Hilldale, R. C.; Duda, J. J.; Gelfenbaum, G. R. (2018).
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construction was characterized by "the Romans' ability to plan and organize engineering construction on a grand scale." Roman planners introduced the then-novel concept of large
3021: 1062:, Québec, Canada. The multiple-arch dam does not require as many buttresses as the hollow gravity type but requires a good rock foundation because the buttress loads are heavy. 716:
was granted in 1844, the dam was constructed over the following decade. Its construction was carried out on the basis of the mathematical results of scientific stress analysis.
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Once completed, if it is well designed and maintained, a hydroelectric power source is usually comparatively cheap and reliable. It has no fuel and low escape risk, and as an
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Erosion rates are often monitored, and the risk is ordinarily minimized, by shaping the downstream face of the spillway into a curve that minimizes turbulent flow, such as an
2393:. While dams and the water behind them cover only a small portion of earth's surface, they harbour biological activity that can produce large quantities of greenhouse gases. 693:. The dam cost £17,000 and was completed in 1856 as the first engineered dam built in Australia, and the second arch dam in the world built to mathematical specifications. 1367:
2.41 million of a total of 2.5 million dams, are not under the jurisdiction of any public agency (i.e., they are non-jurisdictional), nor are they listed on the
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security of the dam because they are designed to be gradually evacuated for exceptional events. They work as fixed weirs at times by allowing overflow in common floods.
1662:"Timber plank dams" were more elegant structures that employed a variety of construction methods using heavy timbers to support a water retaining arrangement of planks. 5195: 4762: 2687: 2047:
is a major source of electricity in the world. Many countries have rivers with adequate water flow, that can be dammed for power generation purposes. For example, the
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in Middle Egypt. Two dams called Ha-Uar running east–west were built to retain water during the annual flood and then release it to surrounding lands. The lake called
4489:"How Big of an Effect Do Small Dams Have? Using Geomorphological Footprints to Quantify Spatial Impact of Low-Head Dams and Identify Patterns of Across-Dam Variation" 1513:. It must be strong, as floods will wash over its crest. Over time, sand accumulates in layers behind the dam, which helps store water and, most importantly, prevent 528:. It stands 60 meters tall, and in crest is a one meter width. Some historians believe the dam was built by Shāh Abbās I, whereas others believe that he repaired it. 3676: 3098: 1640:
is costly or difficult to transport, and either a low head diversion dam is required or longevity is not an issue. Timber dams were once numerous, especially in the
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by altering the river's depth. Deeper water increases or creates freedom of movement for water vessels. Large dams can serve this purpose, but most often weirs and
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Atif Ansar; Bent Flyvbjerg; Alexander Budzier; Daniel Lunn (June 2014). "Should we build more large dams? The actual costs of hydropower megaproject development".
1812:. At 560 m (1,840 ft) high, it is the tallest dam in the world, including both natural and man-made dams. A more recent example would be the creation of 1334:
can aid rural development in developing countries. In the United States alone, there are approximately 2,000,000 or more "small" dams that are not included in the
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source it is cheaper than both nuclear and wind power. It is more easily regulated to store water as needed and generate high power levels on demand compared to
600:, but it was only in the 19th century that the engineering skills and construction materials available were capable of building the first large-scale arch dams. 3408: 2792:"), in which three German dams were selected to be breached in order to damage German infrastructure and manufacturing and power capabilities deriving from the 288:
is constructed of unhewn stone, over 300 m (980 ft) long, 4.5 m (15 ft) high and 20 m (66 ft) wide, across the main stream of the
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Lansac-Tôha, Fernando Miranda (2019). "A Differently dispersing organism groups show contrasting beta diversity patterns in a dammed subtropical river basin".
5469:"A case study on environmental sustainability: A study of the trophic changes in fish species as a result of the damming of rivers through clustering analysis" 2207:
the reservoir fluctuate annually in an attempt to balance these different purposes. Dam management becomes a complex exercise amongst competing stakeholders.
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earth, and are of two main types: rock-fill and earth-fill. Like concrete gravity dams, embankment dams rely on their weight to hold back the force of water.
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Ren, Kang (2019). "A nature-based reservoir optimization model for resolving the conflict in human water demand and riverine ecosystem protection".
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The main causes of dam failure include inadequate spillway capacity, piping through the embankment, foundation or abutments, spillway design error (
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As of 2021, ICOLD's World Register of Dams contains 58,700 large dam records. The tallest dam in the world is the 305 m-high (1,001 ft)
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Province that created an enormous irrigation reservoir (100 km (62 mi) in circumference), a reservoir that is still present today.
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By 1997, there were an estimated 800,000 dams worldwide, some 40,000 of them over 15 m (49 ft) high. In 2014, scholars from the
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In 2008, it was estimated that 40–80 million people worldwide have been displaced from their homes as a result of dam construction.
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The multiple-arch dam consists of a number of single-arch dams with concrete buttresses as the supporting abutments, as for example the
3519: 3028: 2500:, and glacial melt, causing additional expenditure for the extra capacity to ensure sufficient power is available in low-water years. 2276: 205:, was 102 m (335 ft) long at its base and 87 m (285 ft) wide. The structure was built around 2800 or 2600 BC as a 4162: 2355:
during parts of the year. Turbine and power-plant designs that have a lower impact upon aquatic life are an active area of research.
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liner to prevent seepage. Water/slurry levels in the tailings pond must be managed for stability and environmental purposes as well.
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A spillway is a section of a dam designed to pass water from the upstream side of a dam to the downstream side. Many spillways have
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is a strong motivator in many regions, gravity dams are built in some instances where an arch dam would have been more economical.
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Schnitter, Niklaus (1987a). "Verzeichnis geschichtlicher Talsperren bis Ende des 17. Jahrhunderts". In Garbrecht, Günther (ed.).
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the bottom of the dam. If large enough uplift pressures are generated there is a risk of destabilizing the concrete gravity dam.
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to prevent inundation of nearby land. Dikes are commonly used for reclamation of arable land from a shallow lake, similar to a
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Dams create deep reservoirs and can also vary the flow of water downstream. This can in return affect upstream and downstream
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is a barrier, usually temporary, constructed to exclude water from an area that is normally submerged. Made commonly of wood,
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of the dam in a vertical and horizontal direction. When the upstream face is sloped the distribution is more complicated. The
4909: 4769: 4302:
Graf, WL (1993). "Landscapes, commodities, and ecosystems: The relationship between policy and science for American rivers".
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and the interior filled with earth or rubble. The heavy crib structure supported the dam's face and the weight of the water.
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through which it flowed into reservoirs of the city. Another one, the Band-i-Amir Dam, provided irrigation for 300 villages.
465: 2079:
Many urban areas of the world are supplied with water taken from rivers pent up behind low dams or weirs. Examples include
1438:
is a structure that only partly restricts a waterway, creating a faster channel that resists the accumulation of sediment.
685:
wall was designed by Lieutenant Percy Simpson who was influenced by the advances in dam engineering techniques made by the
6048: 5157: 3095: 842:. In 1928, Congress authorized the project to build a dam that would control floods, provide irrigation water and produce 732: 516:, is the thinnest arch dam in the world and one of the oldest arch dams in Asia. It was constructed some 700 years ago in 5856: 3912: 3596: 3082: 2972: 2896: 2541:
flows can be re-established by removing dams from a river. Dam removal is considered appropriate when the dam is old and
823: 303: 5832: 4371: 1907:
uses small-scale hydro generation on a wide scale and is responsible for about 50% of world use of this type of power.
334: 2849: 2227:
a minimum for the required storage capacity. The most economical arrangement is often a composite structure such as a
727:
in 1880 with an overflow spillway and a special water outlet, it was eventually heightened to 10 m (33 ft).
4487:
Fencl, Jane S.; Mather, Martha E.; Costigan, Katie H.; Daniels, Melinda D. (5 November 2015). Deng, Z. Daniel (ed.).
4068:
A large dam is defined by the industry as one higher than 15 meters high and a major dam as higher than 150.5 meters.
3941: 1293:
dams can be classified as either "high-head" (greater than 30 m in height) or "low-head" (less than 30 m in height).
310:
system in China that included a dam that directed waterflow. It was finished in 251 BC. A large earthen dam, made by
1574:
Because tailings dams often store toxic chemicals from the mining process, modern designs incorporate an impervious
4393: 3657: 1498: 1368: 1345:
definitions of SHPs, such as their maximum generation capacity, dam height, reservoir area, etc., vary by country.
1338: 800: 619:(it is still in use today). It had a height of 12 m (39 ft) and consisted of 21 arches of variable span. 1504:
There are two types of underground dams: "sub-surface" and a "sand-storage". A sub-surface dam is built across an
883: 4877: 4801: 2747: 2167:
in this context) are used to prevent ingress of water to an area that would otherwise be submerged, allowing its
1899:
As of 2005, hydroelectric power, mostly from dams, supplies some 19% of the world's electricity, and over 63% of
796: 681:, was dammed in the 1850s, to cater to the demand for water from the growing population of the city. The masonry 5327:
Bellmore, J. R.; Duda, J. J.; Craig, L. S.; Greene, S. L.; Torgersen, C. E.; Collins, M. J.; Vittum, K. (2017).
4102: 4086: 756: 28: 5891: 4727: 3578: 2654: 1710: 1126: 210: 559:. The central square of Amsterdam, covering the original site of the 800-year-old dam, still carries the name 389:; its record height of 50 m (160 ft) remained unsurpassed until its accidental destruction in 1305. 4964:
Construction of a dam (Berg Strait) to stabilize and increase the level of the northern part of the Aral Sea.
3181: 2095:. Other major sources include deep upland reservoirs contained by high dams across deep valleys, such as the 248:
was built. The system included 16 reservoirs, dams and various channels for collecting water and storing it.
6038: 5692:
Schnitter, Niklaus (1987b). "Die Entwicklungsgeschichte der Pfeilerstaumauer". In Garbrecht, Günther (ed.).
3964:"Army Corps, waterways partners focus on fixed-crest dam safety > Pittsburgh District > News Releases" 3022:"overview of the hystory [sic] of water resources and irrigation management in the near east region" 2869: 2719: 2003: 1742: 1180: 1115: 493: 131:
in South India, built in the 2nd century AD, is one of the oldest water regulating structures still in use.
119:
Ancient dams were built in Mesopotamia and the Middle East for water control. The earliest known dam is the
5997: 5711:
Schnitter, Niklaus (1987c). "Die Entwicklungsgeschichte der Bogenstaumauer". In Garbrecht, Günther (ed.).
4859: 2864: 2666: 2197: 1940: 1922:; to boost the power generation capabilities of a dam, the water may be run through a large pipe called a 929:. Man-made dams are typically classified according to their size (height), intended purpose or structure. 788: 378: 1757:. The largest such lake grew to about 800 km (500 mi) in length before the failure of its dam. 209:
for flood control, but was destroyed by heavy rain during construction or shortly afterwards. During the
3462: 3402: 2839: 2707: 1833: 1774: 1770: 1376: 1188: 1052: 736: 724: 701: 492:
was more than 910 m (3,000 ft) long, and that it had many water-wheels raising the water into
5138:
Kosnik, Lea-Rachel (1 March 2008). "The Potential of Water Power in the Fight Against Global Warming".
4988: 4555: 3699: 2665:
Dam failures are generally catastrophic if the structure is breached or significantly damaged. Routine
2520:
optimization model for resolving the conflict in human water demand and riverine ecosystem protection.
3183:
Water Resources System Operation: Proceedings of the International Conference on Water and Environment
1401:, which is a wall or embankment built along a river or stream to protect adjacent land from flooding. 5786:
Vogel, Alexius (1987). "Die historische Entwicklung der Gewichtsmauer". In Garbrecht, Günther (ed.).
5632: 5587: 5500:
Hartung, Fritz; Kuros, Gh. R. (1987). "Historische Talsperren im Iran". In Garbrecht, Günther (ed.).
5398: 5340: 4620: 4500: 4430: 4335: 4266: 4193: 3806: 3681: 2859: 2854: 2777: 2246: 1048: 890: 855: 597: 20: 5162: 1517:. The stored water can be extracted with a well, through the dam body, or by means of a drain pipe. 925:
Dams can be formed by human agency, natural causes, or even by the intervention of wildlife such as
5884: 4025: 3662: 2763: 2759: 2473: 2239: 2231:
dam flanked by earth embankments. The current use of the land to be flooded should be dispensable.
2044: 1786: 1490: 847: 843: 720: 657: 573: 448:, which often powered water-raising mechanisms. One of the first was the Roman-built dam bridge in 90: 2704:
consisting of three bright orange circles placed on the same axis is defined by the rules of IHL.
1020: 6012: 5870: 5755: 5747: 5648: 5611: 5488: 5364: 5190: 4652: 4466: 3822: 3796: 2789: 2581: 2554: 2504: 2485: 2367: 1919: 1893: 1601: 1486: 1059: 1024: 414: 410: 198: 5248: 3122: 804: 281:, Turkey. It is thought to date from the Hittite empire between the 15th and 13th centuries BC. 3627: 937:
Based on structure and material used, dams are classified as easily created without materials,
731:
centered around the engineering faculties of universities in France and in the United Kingdom.
480:. Water was conducted from the back of the dam through a large pipe to drive a water wheel and 5791: 5772: 5716: 5697: 5678: 5603: 5547: 5539: 5524: 5505: 5432: 5414: 5356: 5143: 5139: 5117: 5111: 4940: 4812: 4735: 4644: 4636: 4592: 4536: 4518: 4448: 4353: 4284: 4213: 4135: 4107: 3834: 3830: 3769: 3499: 3474: 3442: 3418: 3187: 2739: 2730:), geological instability caused by changes to water levels during filling or poor surveying ( 2675: 2593: 2542: 2454: 1393:
would otherwise escape. On occasion, a reservoir is contained by a similar structure called a
1090: 1000: 792: 521: 264: 172: 120: 4055: 4009: 3892: 3722: 638:
and built a series of curved masonry dams as part of the waterway system. In particular, the
5973: 5915: 5739: 5640: 5595: 5480: 5422: 5406: 5348: 5328: 4628: 4526: 4508: 4438: 4343: 4274: 4205: 4097: 3848: 3814: 3759: 3751: 3523: 2875: 2429: 2425:, who threatened to "release the waters" and drown the villagers if they did not cooperate. 2168: 2148: 2092: 1911: 1900: 1872: 1762: 1462: 1184: 1145: 1139: 1111: 1081: 938: 839: 819: 713: 394: 362: 270: 222: 65: 5849: 4134:. Hamilton, Canada: United Nations University Institute for Water, Environment and Health. 3537: 1076: 5982: 5964: 5839: 4866: 4170: 3880: 3102: 2808: 2774: 2701: 2678: 2348: 2330: 2262: 2136: 2128: 2007: 1706: 1235: 1037: 705: 686: 666: 650:
and an engineering marvel. In order to keep the water in control during construction, two
639: 608: 461: 5387:"Morphodynamic evolution following sediment release from the world's largest dam removal" 3632: 2052: 1561:, geology, climate, the type of tailings, and cost. An upstream tailings dam consists of 1265:
costs and affects the dams' potential range and magnitude of environmental disturbances.
361:
for urban settlements over the dry season. Their pioneering use of water-proof hydraulic
5636: 5591: 5455: 5402: 5344: 5086:"Tasmanian Wilderness Society blocks dam construction (Franklin River Campaign) 1981-83" 4624: 4504: 4434: 4339: 4270: 3810: 1934:
to produce electricity to match periods of high and low demand, by moving water between
5987: 5427: 5386: 4980: 4698:"Underground Dams—A Tool of Sustainable Development and Management of Ground Resources" 4531: 4488: 3764: 3739: 3155: 3096:
http://old.himalmag.com/component/content/article/1062-the-reservoirs-of-dholavira.html
2727: 2711: 2562: 2402: 2386: 2382: 2132: 1999: 1837: 1746: 1718: 1229: 1222: 984: 942: 827: 744: 604: 593: 366: 315: 101: 61: 56:
created by dams not only suppress floods but also provide water for activities such as
5865: 5563:"Historical Development of Arch Dams. From Roman Arch Dams to Modern Concrete Designs" 5226: 4785: 4671: 2897:"Bartleby.com: Great Books Online – Quotes, Poems, Novels, Classics and hundreds more" 1957: 1885: 1179:
flow for irrigation systems. An example of this type of dam is the now-decommissioned
6043: 6032: 6007: 5992: 5759: 5652: 5615: 5492: 5468: 5368: 4985:
The principal objective of the dam and reservoir is to protect downstream communities
2827: 2743: 2637: 2558: 2449: 2445: 2433: 2418: 2303: 2181: 2056: 1915: 1889: 1805: 1793: 1782: 1754: 1641: 1550:
operations after separating the valuable fraction from the uneconomic fraction of an
1297: 1203: 1173: 1162: 808: 773: 690: 647: 612: 552: 477: 457: 437: 425: 370: 214: 206: 195: 184: 49: 5599: 4656: 3873: 3826: 3044: 2351:
grounds upstream. In some areas, young fish ("smolt") are transported downstream by
2215: 1796:
in mountainous regions with unstable local geology. Historical examples include the
6002: 4209: 2797: 2793: 2785: 2751: 2477: 2193: 2084: 1962: 1813: 1526: 1482: 1247: 780: 643: 627: 578: 517: 504: 485: 402: 358: 339: 218: 128: 105: 73: 5644: 5546:. Technology and Change in History. Vol. 2. Leiden: Brill. pp. 331–339. 4697: 4419:"Little dams, big problems: The legal and policy issues of nonjurisdictional dams" 2691:
International special sign for works and installations containing dangerous forces
1647:
Timber crib dams were erected of heavy timbers or dressed logs in the manner of a
1616:
cheaper than masonry, concrete or earthworks, but sturdier than timber crib dams.
1597: 5562: 4513: 3551: 160:. Dams were used to control water levels, for Mesopotamia's weather affected the 6017: 5944: 5939: 3818: 2649: 2633: 2613: 2577: 2573: 2529: 2497: 2414: 2344: 2280: 2235: 2144: 2108: 1877: 1821: 1575: 1514: 1477: 1329:
As with large dams, small dams have multiple uses, such as, but not limited to,
1262: 1218: 1199: 1071: 992: 946: 872: 777: 765: 556: 532: 445: 382: 374: 319: 297: 237:
covered 1,700 km (660 sq mi) and is known today as Birket Qarun.
234: 157: 153: 69: 33: 5410: 2374:
Large reservoirs formed behind dams have been indicated in the contribution of
1781:
deposits left behind by glaciers can also dam rivers to form lakes, such as at
5949: 5907: 5484: 4840: 4632: 4087:"How Dams Vary and Why It Matters for the Emerging Science of Dam Removal;..." 3987:"Family of kayaker swept over Dashields Dam sues U.S. Army Corps of Engineers" 3916: 3604: 2904: 2755: 2731: 2625: 2597: 2508: 2441: 2410: 2375: 2252: 2220: 2140: 2112: 2048: 1995: 1991: 1849: 1809: 1801: 1686: 1652: 1624: 1558: 1363: 1330: 1290: 1131: 1041: 988: 967: 815: 784: 761: 674: 662: 561: 441: 307: 293: 77: 57: 5418: 5360: 4734:. Paris: International Council on Metals and the Environment. pp. 9–10. 4640: 4596: 4522: 4452: 4357: 4288: 4217: 4111: 2773:
A notable case of deliberate dam failure (prior to the above ruling) was the
1430:
A check dam is a small dam designed to reduce flow velocity and control soil
240:
By the mid-late third millennium BC, an intricate water-management system in
5456:"Dams from the Roman Era in Spain. Analysis of Design Forms (with Appendix)" 4808: 3470: 3414: 2735: 2658: 2621: 2589: 2550: 2421:, Interior Minister of India, in 1960 speaking to villagers upset about the 2258: 1979: 1974: 1935: 1694: 1676: 1648: 1612: 1592: 1562: 1425: 1359: 1286: 1278: 996: 739:
pioneered the theoretical understanding of dam structures in his 1857 paper
678: 616: 548: 536: 513: 481: 420: 354: 311: 252: 241: 165: 113: 109: 82: 53: 19:
This article is about structures for water impoundment. For other uses, see
5607: 5436: 4648: 4540: 2596:, were removed between 2011 and 2014 that together stored approximately 30 2320: 723:, Australia, was possibly the world's first concrete arch dam. Designed by 4944: 3773: 3755: 2962:
S.W. Helms: "Jawa Excavations 1975. Third Preliminary Report", Levant 1977
2488:
lines. Hydroelectric generation can be vulnerable to major changes in the
791:, the British began construction in 1898. The project was designed by Sir 413:). Roman workforces also were the first to build dam bridges, such as the 369:
allowed for much larger dam structures than previously built, such as the
16:
Barrier that stops or restricts the flow of surface or underground streams
3027:. Food and Agriculture Organization of the United Nations. Archived from 2601: 2538: 2493: 2422: 2334: 2292:
Removal of toxic materials and buildings from the proposed reservoir area
2116: 2096: 2064: 1952: 1923: 1817: 1797: 1734: 1714: 1698: 1605: 1543: 1435: 1355: 1009: 1005: 975: 971: 958: 682: 589: 406: 398: 285: 274: 260: 4279: 4254: 3942:"The U.S. Army Corps of Engineers Wants You To Enjoy The Rivers, Safely" 2448:). It creates a reservoir 600 km (370 mi) long to be used for 2417:, and that it often leads to abuses of the masses by planners. He cites 1745:
about 1.8 million–10,000 years ago, which created lava dams on the
846:. The winning bid to build the dam was submitted by a consortium called 5751: 3907: 3905: 2833: 2821: 2804: 2781: 2566: 2546: 2545:
exceed the expense of its removal. Some effects of dam removal include
2489: 2458: 2390: 2363: 2337: 2228: 2088: 1987: 1927: 1829: 1792:
Natural disasters such as earthquakes and landslides frequently create
1778: 1766: 1758: 1750: 1681: 1656: 1542:
A tailings dam is typically an earth-fill embankment dam used to store
1505: 1447: 1431: 963: 897: in this section. Unsourced material may be challenged and removed. 831: 623: 93:) are used to manage or prevent water flow into specific land regions. 5790:. Vol. 1. Stuttgart: Verlag Konrad Wittwer. pp. 47–56 (50). 5352: 4443: 4418: 4324:"Global proliferation of small hydropower plants – science and policy" 2289:
Compensation for land being flooded as well as population resettlement
1194:
Barrages that are built at the mouths of rivers or lagoons to prevent
5058: 5056: 4348: 4323: 3218: 3149:"Water management: Historical maritime, riverine tradition of Bharat" 2681: 2080: 2068: 1854: 1738: 1637: 1632: 1567: 1547: 1494: 1028: 1013: 926: 835: 697: 651: 635: 631: 582: 544: 449: 289: 176: 161: 124: 5743: 4989:
http://www.nae.usace.army.mil/Missions/Recreation/BlackwaterDam.aspx
2632:. In total, renewed sediment delivery caused approximately 60 ha of 5504:. Vol. 1. Stuttgart: Verlag Konrad Wittwer. pp. 221–274. 2107:
Dams are often used to control and stabilize water flow, often for
807:, was the main contractor. Capital and financing were furnished by 5292: 4895: 3801: 2715: 2706: 2686: 2671: 2653: 2629: 2609: 2534: 2437: 2352: 2319: 2214: 2164: 2160: 1966: 1956: 1904: 1884: 1876: 1702: 1680: 1623: 1596: 1530: 1398: 1394: 1311: 1301: 1281:)". "Major dams" are over 150 m (490 ft) in height. The 1213: 1166: 1156: 1125: 1103: 1075: 1019: 962: 795:
and involved several eminent engineers of the time, including Sir
755: 656: 503: 489: 473: 453: 419: 409:, all of which were known and employed by the 2nd century AD (see 343: 333: 323: 278: 256: 245: 202: 188: 180: 86: 37: 27: 5813:
Dams and Development: Transnational Struggles for Water and Power
5715:. Vol. 1. Stuttgart: Verlag Konrad Wittwer. pp. 75–96. 5696:. Vol. 1. Stuttgart: Verlag Konrad Wittwer. pp. 57–74. 772:
The era of large dams was initiated with the construction of the
476:, Iran, and many of these were later built in other parts of the 5677:. Vol. 1. Stuttgart: Verlag Konrad Wittwer. pp. 9–20. 5329:"Status and trends of dam removal research in the United States" 4232:"Why small-scale hydroelectric plants benefit local communities" 2999:
Günther Garbrecht: "Wasserspeicher (Talsperren) in der Antike",
2945:
Günther Garbrecht: "Wasserspeicher (Talsperren) in der Antike",
2605: 2461:
and the huge reservoir rose by 4 m (13 ft) overnight.
2060: 2014: 1510: 1410: 1195: 1157: 525: 433: 386: 226: 5880: 4556:"A Procedure for Estimating Loss of Life Caused by Dam Failure" 4474:
United States Department of the Interior, National Park Service
4163:"The Jinping-I Double Curvature Arch Dam sets new world record" 2407:
Hungry World: America's Cold War Battle Against Poverty in Asia
5001:"Lake Diefenbaker Reservoir Operations Context and Objectives" 4937:
The careless technology: Ecology and international development
4011:
Guidelines for Retirement of Dams and Hydroelectric Facilities
3852: 1551: 1509:
sand-storage dam is a weir built in stages across a stream or
866: 5876: 4581:"How to manage the cumulative flood safety of catchment dams" 3121:. Law library – University of New Mexico. Archived from 596:
from the abutment stabilizes the structure from the external
4128:
Ageing Water Storage Infrastructure: An Emerging Global Risk
2800:
rivers. This raid later became the basis for several films.
251:
One of the engineering wonders of the ancient world was the
4103:
10.1641/0006-3568(2002)052[0659:HDVAWI]2.0.CO;2
3114:
Govindasamy Agoramoorthy; Sunitha Chaudhary; Minna J. Hsu.
2917: 1501:, Mexico, India, Germany, Italy, Greece, France and Japan. 704:, and it was built by François Zola in the municipality of 373:, possibly the largest water barrier to that date, and the 4008:
Carter, Edward F.; Hosko, Mary Ann; Austin, Roger (1997).
3439:
Wind, Water, Work: Ancient and Medieval Milling Technology
1978:
such as a serious malfunction of the service spillway. A "
1047:
A similar type is the double-curvature or thin-shell dam.
488:
described several dams in Persia. He reported that one in
201:
at Wadi Al-Garawi, about 25 km (16 mi) south of
4962:"Kazakhstan". Land and Water Development Division. 1998. 4467:"Director's Order #40: Dam Safety & Security Program" 3597:"Egyptian Irrigation Bond 1898 – Aswan Dam on Nile River" 3566:
Philosophical Transactions of the Royal Society of London
3116:"The Check-Dam Route to Mitigate India's Water Shortages" 1773:, which formed the 7,780 km (3,000 sq mi) 5070: 5068: 4306:. Washington DC: National Academy Press. pp. 11–42. 3496:
A history of engineering in classical and medieval times
3467:
A history of engineering in classical and medieval times
2995: 2993: 1358:
a non-jurisdictional dam is defined as a dam creating a
1149:
massive. This enables thinner dams and saves resources.
5820:
Silenced Rivers: The Ecology and Politics of Large Dams
5293:"Transparent Cost Database – Transparent Cost Database" 4846:(Report). ICOLD Committee on Tailings Dams. p. 91. 1761:
can also form natural dams, such as the damming of the
1733:
Dams can also be created by natural geological forces.
1144:
A gravity dam can be combined with an arch dam into an
512:
Shāh Abbās Arch (Persian: طاق شاه عباس), also known as
179:, 100 kilometres (62 mi) northeast of the capital 4563:
U.S. Department of the Interior, Bureau of Reclamation
4412: 4410: 3564:
Rankine, W. (1857) "On the stability of loose earth".
2872: – Device for raising and lowering boats or ships 1659:
downstream in the late 19th and early 20th centuries.
221:
dug a canal 16 km (9.9 mi) long linking the
5854: 5322: 5320: 5318: 4768:. NBK Institute of Mining Engineering. Archived from 2742:
dams), poor maintenance, especially of outlet pipes (
2561:, re-establishment of natural water temperatures and 1017:
character of the rock should be carefully inspected.
5380: 5378: 3081:. The Southasia Trust. December 2008. Archived from 1903:. Much of this is generated by large dams, although 1044:
on the Colorado River is a constant-angle arch dam.
108:, as seen in the names of many old cities, such as 5972: 5914: 5730:Smith, Norman (1970). "The Roman Dams of Subiaco". 5538:Hodge, A. Trevor (2000). "Reservoirs and Dams". In 5460:1st International Congress on Construction History 5110:Jain, Sharad K.; Singh, V. P. (12 September 2003). 4786:
http://mining.ubc.ca/files/2013/03/Dirk-van-Zyl.pdf
4317: 4315: 4313: 3398: 3396: 3215:
Science and Civilization in China: Volume 4, Part 3
2279:on river fisheries, forests and wildlife (see also 1709:, cofferdams are used to allow construction on the 1481:stored, such as in deserts and on islands like the 696:The first such dam was opened two years earlier in 213:in the 19th century BC, the Pharaohs Senosert III, 5660:Schnitter, Niklaus (1978). "Römische Talsperren". 5006:. Saskatchewan Watershed Authority. Archived from 4574: 4572: 3520:"Key Developments in the History of Buttress Dams" 2620:. Approximately 65% of the sediment stored in the 5930:List of conventional hydroelectric power stations 5308: 5306: 5158:"Water Reservoirs behind Rising Greenhouse Gases" 4417:Brewitt, Peter K.; Colwyn, Chelsea L. M. (2020). 4080: 4078: 4076: 3874:http://www.britishdams.org/about_dams/gravity.htm 3364: 3229: 3227: 3045:http://www.fao.org/docrep/005/y4357e/y4357e14.htm 2930:Tijdschrift voor Nederlandse Taal- en Letterkunde 1538:installation on a mine tailings storage facility. 1325:Dam in Europe at Autumn as viewed from FPV drone. 603:Three pioneering arch dams were built around the 48:is a barrier that stops or restricts the flow of 5084:Stobbe Reimer, Asha Miriam (30 September 2021). 4085:Poff, N. Leroy; Hart, David D. (1 August 2002). 2878: – Risk prevention of reservoir dam failure 2385:. The changing water levels in reservoirs are a 5113:Water Resources Systems Planning and Management 4401:Office of the State Engineer, Dam Safety Bureau 2302:disruption to human lives (relocation, loss of 607:in the early 19th century. Henry Russel of the 4696:Onder, H; M. Yilmaz (November–December 2005). 3727:. U.S. Government Printing Office. p. 79. 2824: – Retaining wall around pollution source 2569:that were previously unavailable due to dams. 2401:Dams' impact on human society is significant. 646:, was completed in 1832 as the largest dam in 472:. The first was built at Shustar on the River 428:dam, built by the Romans in the 3rd century AD 5892: 5454:Arenillas, Miguel; Castillo, Juan C. (2003). 4871:"RENEWABLES GLOBAL STATUS REPORT 2006 Update" 4855: 4853: 3538:"John Redpath, the Whispering Dam, and Sugar" 3410:Encyclopedia of the History of Arabic Science 2457:, the dam held back a what would have been a 669:, the first engineered dam built in Australia 8: 4979:. US Army Corps of Engineers. Archived from 4672:"Control of Groundwater by Underground Dams" 3721:Interior, United States Dept of the (1948). 3457: 3455: 3387: 3360: 3301: 3180:Singh, Vijay P.; Ram Narayan Yadava (2003). 2628:. The remaining ~90% was transported to the 2476:requires a long lead time for site studies, 2242:considerations when building a dam include: 5249:"China's Three Gorges dam faces flood test" 5186:"Dams the latest culprit in global warming" 4939:. Natural History Press. pp. 102–108. 4860:Renewables Global Status Report 2006 Update 4322:Couto, Thiago BA; Olden, Julian D. (2018). 4014:. Waterpower '97. ASCE. pp. 1248–1256. 3015: 3013: 2624:eroded, of which ~10% was deposited in the 2063:and supplied 93% of the energy consumed by 5899: 5885: 5877: 4839:McLeod, Harvey; Bjelkevik, Annika (2021). 4795: 4793: 3356: 3340: 3324: 3320: 2934:Magazine for Dutch Language and Literature 2600:of sediment. As a result, the delivery of 2324:Wood and garbage accumulation due to a dam 2029: 700:. It was the first French arch dam of the 322:, flooded a valley in modern-day northern 5850:Structurae: Dams and Retaining Structures 5567:Australian Civil Engineering Transactions 5426: 4530: 4512: 4442: 4347: 4278: 4101: 3800: 3763: 3352: 3316: 2362:A large dam can cause the loss of entire 1655:were timber crib dams used to help float 913:Learn how and when to remove this message 830:, on the border between the US states of 708:to improve the supply of water after the 622:In the 1820s and 30s, Lieutenant-Colonel 346:has been in use for almost two millennia. 135:hydropower and water-raising mechanisms. 5815:. Ithaca: Cornell University Press 2004. 5771:. London: Peter Davies. pp. 25–49. 5561:James, Patrick; Chanson, Hubert (2002). 4328:Frontiers in Ecology and the Environment 4234:. World Economic Forum. 3 September 2015 4028:. International Commission on Large Dams 3698:. University of Michigan. Archived from 2440:is more than five times the size of the 1910:Most hydroelectric power comes from the 1354:non-jurisdictional dam. In the state of 572: 263:, the dam fell under the control of the 5861: 4613:Environmental Monitoring and Assessment 4394:"Evaluation of Non-Jurisdictional Dams" 4372:"DWR Dam Safety Non-Jurisdictional Dam" 4198:Australasian Journal of Water Resources 4192:Nathan, R.; Lowe, L. (1 January 2012). 3633:The World's Work: A History of Our Time 3407:Rashed, Roshdi; Morelon, Régis (1996). 2888: 2758:, and human, computer or design error ( 2636:growth, and also resulted in increased 1840:resulting in the deaths of six people. 1685:A cofferdam during the construction of 615:in 1804 to supply water to the city of 5473:Computers & Industrial Engineering 4899:, published 2006, accessed 16 May 2007 4677:. The Middle East Technical University 2973:"The world's oldest dams still in use" 2845:International Commission on Large Dams 2836: – Accumulation of ice in a river 2557:downstream, increased river width and 2413:to displace people in the name of the 1930:. A variant on this simple model uses 1283:Report of the World Commission on Dams 1275:International Commission on Large Dams 5062:Lansac-Tôha, Fernando Miranda (2019). 4916:. Johnstown Area Heritage Association 4841:TAILINGS DAM DESIGN Technology Update 4194:"The Hydrologic Impacts of Farm Dams" 4125:Perera, Duminda; et al. (2021). 3552:"Historical Development of Arch Dams" 3375: 3328: 3312: 3297: 3285: 3273: 3261: 3249: 3245: 3233: 1836:in 1927, which wiped out the town of 1134:is an example of an arch-gravity dam. 1084:is an example of a solid gravity dam. 7: 5544:Handbook of Ancient Water Technology 3020:Mohamed Bazza (28–30 October 2006). 1689:at the Montgomery Point Lock and Dam 895:adding citations to reliable sources 357:dams which could secure a permanent 4732:Case studies on tailings management 4255:"Small Hydro for Rural Development" 3913:"Dams and Development: An Overview" 3626:Roberts, Chalmers (December 1902), 2316:Environmental impacts of reservoirs 1628:A timber crib dam in Michigan, 1978 626:supervised the construction of the 588:The Romans were the first to build 543:), started with a dam on the river 456:(c. 23 m) to supply the town. Also 5833:Basic Terms of Dam Characteristics 5521:Roman Aqueducts & Water Supply 5269:. 29 February 2008. Archived from 4374:. Colorado Information Marketplace 3966:. Lrp.usace.army.mil. 19 June 2017 3915:. 16 November 2000. Archived from 3405:(1996), "Engineering", p. 759, in 3186:. Allied Publishers. p. 508. 2807:foundation is developing, with an 2104:Stabilize water flow / irrigation 1881:Hydroelectric dam in cross section 1777:near the end of the last Ice Age. 1737:are formed when lava flows, often 1476:Underground dams are used to trap 1031:, is a multiple-arch buttress dam. 14: 5955:Run-of-the-river hydroelectricity 5263:"World Commission on Dams Report" 5227:"Three Gorges dam wall completed" 5090:The Commons Social Change Library 4048:"Methodology and Technical Notes" 3744:Environmental Health Perspectives 3390:, pp. 232, 238, fig. 13, 249 3147:Kalyanaraman, S (18 March 2003). 2381:Dams are also found to influence 2306:or cultural matters underwater). 1489:, Japan. They are most common in 838:between 1931 and 1936 during the 152:Early dam building took place in 5963: 5864: 5580:Science of the Total Environment 4259:Canadian Water Resources Journal 3685:, Vol. 57, No. 4 (February 1899) 2482:environmental impact assessments 1221:is an earthen embankment dam in 871: 789:invasion and occupation of Egypt 611:oversaw the construction of the 381:. The highest Roman dam was the 5935:Pumped-storage hydroelectricity 5600:10.1016/j.scitotenv.2019.07.236 5194:. 8 August 2012. Archived from 4728:"Construction of Tailings Dams" 4670:Yilmaz, Metin (November 2003). 2830: – Barrier in construction 2409:that dam construction requires 2249:of the surrounding rock or soil 2099:series of dams and reservoirs. 1932:pumped-storage hydroelectricity 882:needs additional citations for 741:On the Stability of Loose Earth 464:dams were introduced which the 5034:Marine and Freshwater Research 4554:Graham, W J (September 1999). 4304:Sustaining Our Water Resources 4210:10.7158/13241583.2012.11465405 3494:Donald Routledge Hill (1996). 2768:Taum Sauk pumped storage plant 2698:international humanitarian law 2586:Restoration of the Elwha River 2515:Reservoir and dam improvements 2147:protects the Netherlands from 551:began with a dam on the river 547:in the late 12th century, and 171:The earliest known dam is the 1: 5645:10.1016/j.jclepro.2019.05.221 5625:Journal of Cleaner Production 4811:: Balkema. pp. 257–260. 4800:Singhal, Raj K., ed. (2000). 4763:"Properties of Tailings Dams" 3675:Frederic Courtland Penfield, 3365:Arenillas & Castillo 2003 3079:"The reservoirs of Dholavira" 2135:, Canada can store 8.76  2010:(the "great flood of 1889"). 1497:while also being used in the 851:two years ahead of schedule. 733:William John Macquorn Rankine 673:Hunts Creek near the city of 452:, which could raise water 50 5229:. China Embassy. 20 May 2006 4726:Blight, Geoffrey E. (1998). 4579:Pisaniello, John D. (2009). 4514:10.1371/journal.pone.0141210 3359:, pp. 60, table 1, 62; 2286:Impacts on human habitations 2091:, with water taken from the 2067:and 20% of that consumed by 1986:A spillway can be gradually 1571:supports the upstream side. 1546:, which are produced during 1234:Embankment dams are made of 776:in Egypt in 1902, a gravity 4026:"Definition of a Large Dam" 3929:Box 1. What is a large dam? 3819:10.1016/j.enpol.2013.10.069 2850:List of dams and reservoirs 2387:source for greenhouse gases 1114:is a solid gravity dam and 712:devastated the area. After 555:, a minor tributary of the 508:14th c. Shāh Abbās arch dam 407:multiple arch buttress dams 277:dam and spring temple near 6065: 5411:10.1038/s41598-018-30817-8 3985:Bob Bauder (20 May 2017). 3738:Joyce, S. (October 1997). 2684:into weak fractured rock. 2647: 2527: 2492:, including variations in 2313: 1950: 1914:of dammed water driving a 1870: 1847: 1674: 1590: 1524: 1499:southwestern United States 1460: 1445: 1423: 1408: 1369:National Inventory of Dams 1339:National Inventory of dams 1245: 1227: 1198:or use the tidal flow for 1171: 1137: 1069: 956: 436:, bridge dams such as the 18: 5961: 5519:Hodge, A. Trevor (1992). 5485:10.1016/j.cie.2018.09.032 5467:Almeida, Ricardo (2018). 5251:. BBC News. 20 July 2010. 5116:. Elsevier. p. 408. 4633:10.1007/s10661-006-4781-3 4132:(Report Series, Issue 11) 3944:. 90.5 WESA. 23 June 2017 3498:. Routledge. p. 31. 2748:Val di Stava Dam collapse 2188: 2175: 2155: 2143:) of floodwater, and the 2123: 2103: 2075: 2040: 2035: 2032: 1990:by water flow, including 1118:is a hollow gravity dam. 1036:the dam becomes smaller. 949:, with several subtypes. 5838:30 November 2020 at the 5074:Almeida, Ricardo (2018). 3724:The Hoover Dam Documents 3388:Hartung & Kuros 1987 3361:James & Chanson 2002 3302:James & Chanson 2002 3213:Needham, Joseph (1986). 2977:www.water-technology.net 2918:http://www.bartleby.com/ 2582:U.S. state of Washington 2343:Older dams often lack a 1377:US National Park Service 1116:Braddock Locks & Dam 306:is the oldest surviving 104:, and before that, from 52:or underground streams. 4253:Faruqui, N. I. (1994). 4052:Watersheds of the World 3583:Encyclopædia Britannica 3007:(1986), pp.51–64 (52f.) 3003:, 2nd special edition: 2949:, 2nd special edition: 2870:Lock (water navigation) 2722:in Pennsylvania in 1889 2004:Johnstown, Pennsylvania 1969:, soon after first fill 1785:, also in Montana (see 1743:Uinkaret volcanic field 1349:Non-jurisdictional dams 1336:Army Corps of Engineers 1181:Red Bluff Diversion Dam 787:. Following their 1882 484:. In the 10th century, 5998:Gorlov helical turbine 5788:Historische Talsperren 5767:Smith, Norman (1971). 5732:Technology and Culture 5713:Historische Talsperren 5694:Historische Talsperren 5675:Historische Talsperren 5502:Historische Talsperren 5048:Ecological Engineering 4914:Johnstown Flood Museum 4910:"The Club and the Dam" 3879:31 August 2011 at the 3101:21 August 2016 at the 2865:List of tidal barrages 2803:Since 2007, the Dutch 2723: 2714:failure and resulting 2692: 2667:deformation monitoring 2662: 2325: 2223: 2083:, with water from the 1970: 1941:Dinorwig Power Station 1896: 1882: 1867:Power generation plant 1690: 1629: 1608: 1539: 1536:Bituminous geomembrane 1493:and the arid areas of 1326: 1225: 1169: 1135: 1085: 1032: 979: 818:is a massive concrete 769: 719:The 75-miles dam near 670: 585: 509: 429: 347: 191:between 1319-1304 BC. 100:can be traced back to 41: 5523:. London: Duckworth. 4983:on 28 February 2013. 3756:10.1289/ehp.971051050 3696:"The First Aswan Dam" 3677:"Harnessing the Nile" 3463:Donald Routledge Hill 3403:Donald Routledge Hill 2953:(1986), pp.51–64 (52) 2840:Inflatable rubber dam 2750:), extreme rainfall ( 2710: 2690: 2670:solution can be rock 2657: 2496:, ground and surface 2333:was a contributor to 2323: 2277:Environmental impacts 2218: 1960: 1888: 1880: 1862:Construction elements 1834:Gros Ventre landslide 1775:Glacial Lake Missoula 1771:Cordilleran Ice Sheet 1684: 1627: 1600: 1534: 1324: 1217: 1189:Red Bluff, California 1160: 1129: 1079: 1053:Mountain City, Nevada 1023: 995:will depend upon the 966: 822:, constructed in the 759: 737:University of Glasgow 725:Henry Charles Stanley 710:1832 cholera outbreak 660: 576: 569:Industrial revolution 507: 440:were used to provide 423: 340:Roman dam at Cornalvo 337: 31: 6049:Hydraulic structures 5845:Gravity Dam Analysis 5822:. London: Zed. 2001. 5273:on 13 September 2008 5267:International Rivers 4865:18 July 2011 at the 3872:British Dam Society 3740:"Is it worth a dam?" 3682:The Century Magazine 3417:. pp. 751–795. 3331:, p. 332, fn. 2 2860:List of tallest dams 2855:List of largest dams 2572:The world's largest 2310:Environmental impact 985:hydrostatic pressure 891:improve this article 856:University of Oxford 598:hydrostatic pressure 577:An engraving of the 21:Dam (disambiguation) 5637:2019JCPro.231..406R 5592:2019ScTEn.691.1271L 5403:2018NatSR...813279R 5345:2017WIRWa...4E1164R 4625:2006EMnAs.114..287A 4505:2015PLoSO..1041210F 4435:2020WIRWa...7E1393B 4340:2018FrEE...16...91C 4280:10.4296/cwrj1903227 4271:1994CaWRJ..19..227F 4173:on 17 November 2018 3811:2014EnPol..69...43A 3663:Jewish Encyclopedia 3628:"Subduing the Nile" 3437:Adam Lucas (2006), 3221:: Caves Books, Ltd. 2764:Dale Dike Reservoir 2760:Buffalo Creek Flood 2549:of sediment in the 2474:hydroelectric plant 2397:Human social impact 2240:engineering geology 2159:Dams (often called 2045:Hydroelectric power 2006:, resulting in the 1804:, which blocks the 1787:Moraine-dammed lake 1491:northeastern Africa 848:Six Companies, Inc. 844:hydroelectric power 805:John Aird & Co. 661:Masonry arch wall, 6013:Cross-flow turbine 5818:McCully, Patrick. 5811:Khagram, Sanjeev. 5391:Scientific Reports 5191:The Times of India 4403:. 7 December 2009. 3919:on 28 October 2010 3540:. 31 October 2014. 3315:, pp. 33–35; 3161:on 6 February 2007 3059:. Brown University 2790:Operation Chastise 2724: 2693: 2663: 2608:to the downstream 2594:Glynes Canyon dams 2486:power transmission 2472:Construction of a 2326: 2234:Significant other 2224: 1971: 1897: 1894:electric generator 1883: 1816:by a landslide on 1691: 1630: 1609: 1602:Redridge Steel Dam 1540: 1327: 1226: 1170: 1136: 1086: 1060:Daniel-Johnson Dam 1033: 1025:Daniel-Johnson Dam 980: 770: 671: 586: 510: 430: 415:Bridge of Valerian 411:List of Roman dams 348: 253:Great Dam of Marib 199:Sadd-el-Kafara Dam 42: 6026: 6025: 5797:978-3-87919-145-1 5778:978-0-432-15090-0 5769:A History of Dams 5722:978-3-87919-145-1 5703:978-3-87919-145-1 5684:978-3-87919-145-1 5553:978-90-04-11123-3 5530:978-0-7156-2194-3 5511:978-3-87919-145-1 5353:10.1002/wat2.1164 5312:Ren, Kang (2019). 5123:978-0-08-054369-7 5036:, 68(1), 116–122. 5013:on 6 October 2014 4818:978-90-5809-085-0 4775:on 1 October 2011 4741:978-1-895720-29-7 4444:10.1002/wat2.1393 4141:978-92-808-6105-1 3849:"Arch Dam Forces" 3750:(10): 1050–1055. 3585:. 13 August 2023. 3526:on 21 March 2012. 3505:978-0-415-15291-4 3480:978-0-415-15291-4 3473:. pp. 56–8. 3424:978-0-415-12410-2 3319:, pp. 31f.; 3193:978-81-7764-548-4 3005:Antiker Wasserbau 2951:Antiker Wasserbau 2740:Testalinden Creek 2588:). Two dams, the 2543:maintenance costs 2455:2010 China floods 2297:Impact assessment 2273:Reservoir silting 2219:The discharge of 2204: 2203: 2156:Land reclamation 2124:Flood prevention 2041:Power generation 1890:Hydraulic turbine 1322: 1122:Arch-gravity dams 987:between vertical 939:arch-gravity dams 923: 922: 915: 793:William Willcocks 522:Khorasan Province 395:arch-gravity dams 365:and particularly 330:Roman engineering 62:human consumption 6056: 5974:Hydroelectricity 5967: 5916:Hydroelectricity 5901: 5894: 5887: 5878: 5869: 5868: 5860: 5801: 5782: 5763: 5726: 5707: 5688: 5669: 5656: 5619: 5574: 5557: 5534: 5515: 5496: 5463: 5441: 5440: 5430: 5382: 5373: 5372: 5324: 5313: 5310: 5301: 5300: 5289: 5283: 5282: 5280: 5278: 5259: 5253: 5252: 5245: 5239: 5238: 5236: 5234: 5223: 5217: 5214: 5208: 5207: 5205: 5203: 5198:on 9 August 2012 5182: 5176: 5175: 5173: 5171: 5154: 5148: 5147: 5135: 5129: 5127: 5107: 5101: 5100: 5098: 5096: 5081: 5075: 5072: 5063: 5060: 5051: 5043: 5037: 5029: 5023: 5022: 5020: 5018: 5012: 5005: 4997: 4991: 4987: 4977:"Blackwater Dam" 4973: 4967: 4966: 4959: 4953: 4952: 4932: 4926: 4925: 4923: 4921: 4906: 4900: 4892: 4890: 4888: 4882: 4876:. Archived from 4875: 4857: 4848: 4847: 4845: 4836: 4830: 4829: 4827: 4825: 4797: 4788: 4784: 4782: 4780: 4774: 4767: 4759: 4753: 4752: 4750: 4748: 4723: 4717: 4716: 4714: 4712: 4702: 4693: 4687: 4686: 4684: 4682: 4676: 4667: 4661: 4660: 4619:(1–3): 287–312. 4607: 4601: 4600: 4576: 4567: 4566: 4560: 4551: 4545: 4544: 4534: 4516: 4499:(11): e0141210. 4484: 4478: 4477: 4471: 4463: 4457: 4456: 4446: 4414: 4405: 4404: 4398: 4390: 4384: 4383: 4381: 4379: 4368: 4362: 4361: 4351: 4349:10.1002/fee.1746 4319: 4308: 4307: 4299: 4293: 4292: 4282: 4250: 4244: 4243: 4241: 4239: 4228: 4222: 4221: 4189: 4183: 4182: 4180: 4178: 4169:. Archived from 4167:en.powerchina.cn 4159: 4153: 4152: 4150: 4148: 4133: 4122: 4116: 4115: 4105: 4082: 4071: 4070: 4065: 4063: 4054:. Archived from 4044: 4038: 4037: 4035: 4033: 4022: 4016: 4015: 4005: 3999: 3998: 3996: 3994: 3982: 3976: 3975: 3973: 3971: 3960: 3954: 3953: 3951: 3949: 3938: 3932: 3931: 3926: 3924: 3909: 3900: 3899: 3897: 3889: 3883: 3870: 3864: 3863: 3861: 3859: 3845: 3839: 3838: 3804: 3784: 3778: 3777: 3767: 3735: 3729: 3728: 3718: 3712: 3711: 3709: 3707: 3692: 3686: 3673: 3667: 3655: 3649: 3648: 3647: 3645: 3623: 3617: 3616: 3614: 3612: 3603:. Archived from 3593: 3587: 3586: 3575: 3569: 3562: 3556: 3555: 3548: 3542: 3541: 3534: 3528: 3527: 3522:. Archived from 3516: 3510: 3509: 3491: 3485: 3484: 3459: 3450: 3441:, p. 62. Brill, 3435: 3429: 3428: 3400: 3391: 3385: 3379: 3373: 3367: 3350: 3344: 3343:, pp. 59–62 3338: 3332: 3310: 3304: 3295: 3289: 3288:, pp. 331f. 3283: 3277: 3271: 3265: 3259: 3253: 3243: 3237: 3231: 3222: 3211: 3205: 3204: 3202: 3200: 3177: 3171: 3170: 3168: 3166: 3160: 3154:. Archived from 3153: 3144: 3138: 3137: 3135: 3133: 3127: 3120: 3111: 3105: 3094: 3092: 3090: 3075: 3069: 3068: 3066: 3064: 3053: 3047: 3043: 3041: 3039: 3034:on 8 August 2007 3033: 3026: 3017: 3008: 2997: 2988: 2987: 2985: 2983: 2969: 2963: 2960: 2954: 2943: 2937: 2926: 2920: 2916: 2914: 2912: 2903:. Archived from 2893: 2876:Reservoir safety 2676:pressure pumping 2576:occurred on the 2459:disastrous flood 2430:Three Gorges Dam 2376:seismic activity 2270:Peak flood flows 2176:Water diversion 2149:coastal flooding 2030: 1912:potential energy 1901:renewable energy 1873:Hydroelectricity 1759:Glacial activity 1463:Diversionary dam 1457:Diversionary dam 1434:. Conversely, a 1323: 1242:Fixed-crest dams 1196:tidal incursions 1185:Sacramento River 1146:arch-gravity dam 1140:Arch-gravity dam 1112:Grand Coulee Dam 1082:Grand Coulee Dam 918: 911: 907: 904: 898: 875: 867: 840:Great Depression 820:arch-gravity dam 634:near modern-day 466:Muslim engineers 223:Fayum Depression 196:Ancient Egyptian 6064: 6063: 6059: 6058: 6057: 6055: 6054: 6053: 6029: 6028: 6027: 6022: 5983:Francis turbine 5968: 5959: 5910: 5905: 5875: 5863: 5855: 5840:Wayback Machine 5829: 5808: 5806:Further reading 5798: 5785: 5779: 5766: 5744:10.2307/3102810 5729: 5723: 5710: 5704: 5691: 5685: 5672: 5659: 5622: 5577: 5560: 5554: 5540:Wikander, Örjan 5537: 5531: 5518: 5512: 5499: 5466: 5453: 5450: 5445: 5444: 5384: 5383: 5376: 5326: 5325: 5316: 5311: 5304: 5291: 5290: 5286: 5276: 5274: 5261: 5260: 5256: 5247: 5246: 5242: 5232: 5230: 5225: 5224: 5220: 5216:Cullather, 110. 5215: 5211: 5201: 5199: 5184: 5183: 5179: 5169: 5167: 5166:. 9 August 2012 5156: 5155: 5151: 5137: 5136: 5132: 5124: 5109: 5108: 5104: 5094: 5092: 5083: 5082: 5078: 5073: 5066: 5061: 5054: 5044: 5040: 5030: 5026: 5016: 5014: 5010: 5003: 4999: 4998: 4994: 4975: 4974: 4970: 4961: 4960: 4956: 4934: 4933: 4929: 4919: 4917: 4908: 4907: 4903: 4886: 4884: 4880: 4873: 4869: 4867:Wayback Machine 4858: 4851: 4843: 4838: 4837: 4833: 4823: 4821: 4819: 4799: 4798: 4791: 4778: 4776: 4772: 4765: 4761: 4760: 4756: 4746: 4744: 4742: 4725: 4724: 4720: 4710: 4708: 4700: 4695: 4694: 4690: 4680: 4678: 4674: 4669: 4668: 4664: 4609: 4608: 4604: 4578: 4577: 4570: 4558: 4553: 4552: 4548: 4486: 4485: 4481: 4469: 4465: 4464: 4460: 4416: 4415: 4408: 4396: 4392: 4391: 4387: 4377: 4375: 4370: 4369: 4365: 4321: 4320: 4311: 4301: 4300: 4296: 4252: 4251: 4247: 4237: 4235: 4230: 4229: 4225: 4191: 4190: 4186: 4176: 4174: 4161: 4160: 4156: 4146: 4144: 4142: 4131: 4124: 4123: 4119: 4084: 4083: 4074: 4061: 4059: 4046: 4045: 4041: 4031: 4029: 4024: 4023: 4019: 4007: 4006: 4002: 3992: 3990: 3984: 3983: 3979: 3969: 3967: 3962: 3961: 3957: 3947: 3945: 3940: 3939: 3935: 3922: 3920: 3911: 3910: 3903: 3895: 3891: 3890: 3886: 3881:Wayback Machine 3871: 3867: 3857: 3855: 3847: 3846: 3842: 3786: 3785: 3781: 3737: 3736: 3732: 3720: 3719: 3715: 3705: 3703: 3702:on 15 June 1997 3694: 3693: 3689: 3674: 3670: 3656: 3652: 3643: 3641: 3625: 3624: 3620: 3610: 3608: 3595: 3594: 3590: 3577: 3576: 3572: 3563: 3559: 3550: 3549: 3545: 3536: 3535: 3531: 3518: 3517: 3513: 3506: 3493: 3492: 3488: 3481: 3461: 3460: 3453: 3436: 3432: 3425: 3406: 3401: 3394: 3386: 3382: 3374: 3370: 3357:Schnitter 1987b 3351: 3347: 3341:Schnitter 1987b 3339: 3335: 3325:Schnitter 1987c 3321:Schnitter 1987a 3311: 3307: 3300:, p. 332; 3296: 3292: 3284: 3280: 3272: 3268: 3260: 3256: 3252:, pp. 79f. 3244: 3240: 3232: 3225: 3212: 3208: 3198: 3196: 3194: 3179: 3178: 3174: 3164: 3162: 3158: 3151: 3146: 3145: 3141: 3131: 3129: 3128:on 20 July 2013 3125: 3118: 3113: 3112: 3108: 3103:Wayback Machine 3088: 3086: 3085:on 11 July 2011 3077: 3076: 3072: 3062: 3060: 3055: 3054: 3050: 3037: 3035: 3031: 3024: 3019: 3018: 3011: 2998: 2991: 2981: 2979: 2971: 2970: 2966: 2961: 2957: 2944: 2940: 2927: 2923: 2910: 2908: 2907:on 8 April 2009 2895: 2894: 2890: 2885: 2818: 2809:open innovation 2775:Royal Air Force 2718:that destroyed 2702:protective sign 2679:Portland cement 2652: 2646: 2555:sediment supply 2532: 2526: 2517: 2470: 2399: 2331:Glen Canyon Dam 2318: 2312: 2299: 2263:slope stability 2213: 2171:for human use. 2129:Keenleyside Dam 2028: 2026:Common purposes 2023: 2008:Johnstown Flood 1955: 1949: 1875: 1869: 1864: 1852: 1846: 1731: 1679: 1673: 1668: 1622: 1595: 1589: 1584: 1529: 1523: 1474: 1472:Underground dam 1465: 1459: 1450: 1444: 1428: 1422: 1413: 1407: 1390: 1385: 1351: 1312: 1310: 1271: 1259: 1250: 1244: 1232: 1212: 1210:Embankment dams 1176: 1155: 1142: 1124: 1074: 1068: 1038:Jones Falls Dam 961: 955: 943:embankment dams 935: 919: 908: 902: 899: 888: 876: 865: 754: 706:Aix-en-Provence 687:Royal Engineers 667:New South Wales 640:Jones Falls Dam 609:Royal Engineers 594:reaction forces 571: 502: 424:Remains of the 332: 261:Kingdom of Saba 211:Twelfth Dynasty 150: 145: 89:(also known as 24: 17: 12: 11: 5: 6062: 6060: 6052: 6051: 6046: 6041: 6039:Barrages (dam) 6031: 6030: 6024: 6023: 6021: 6020: 6015: 6010: 6005: 6000: 5995: 5990: 5988:Kaplan turbine 5985: 5979: 5977: 5970: 5969: 5962: 5960: 5958: 5957: 5952: 5947: 5942: 5937: 5932: 5927: 5921: 5919: 5912: 5911: 5906: 5904: 5903: 5896: 5889: 5881: 5874: 5873: 5853: 5852: 5847: 5842: 5828: 5827:External links 5825: 5824: 5823: 5816: 5807: 5804: 5803: 5802: 5796: 5783: 5777: 5764: 5727: 5721: 5708: 5702: 5689: 5683: 5670: 5657: 5620: 5575: 5558: 5552: 5535: 5529: 5516: 5510: 5497: 5464: 5449: 5446: 5443: 5442: 5374: 5314: 5302: 5284: 5254: 5240: 5218: 5209: 5177: 5163:French Tribune 5149: 5130: 5122: 5102: 5076: 5064: 5052: 5050:, 91, 183–194. 5038: 5024: 4992: 4968: 4954: 4927: 4901: 4883:on 14 May 2016 4849: 4831: 4817: 4789: 4754: 4740: 4718: 4705:European Water 4688: 4662: 4602: 4591:(4): 361–370. 4568: 4546: 4479: 4476:. 25 May 2010. 4458: 4406: 4385: 4363: 4309: 4294: 4265:(3): 227–235. 4245: 4223: 4184: 4154: 4140: 4117: 4096:(8): 659–668. 4072: 4058:on 4 July 2007 4039: 4017: 4000: 3977: 3955: 3933: 3901: 3893:"Gravity Dams" 3884: 3865: 3840: 3779: 3730: 3713: 3687: 3668: 3650: 3618: 3607:on 13 May 2005 3588: 3570: 3557: 3543: 3529: 3511: 3504: 3486: 3479: 3451: 3430: 3423: 3392: 3380: 3368: 3355:, p. 29; 3353:Schnitter 1978 3345: 3333: 3327:, p. 80; 3323:, p. 12; 3317:Schnitter 1978 3305: 3290: 3278: 3266: 3254: 3248:, p. 49; 3238: 3223: 3206: 3192: 3172: 3139: 3106: 3070: 3048: 3009: 2989: 2964: 2955: 2938: 2921: 2887: 2886: 2884: 2881: 2880: 2879: 2873: 2867: 2862: 2857: 2852: 2847: 2842: 2837: 2831: 2825: 2817: 2814: 2728:South Fork Dam 2712:South Fork Dam 2648:Main article: 2645: 2642: 2638:river braiding 2618:re-established 2563:recolonisation 2528:Main article: 2525: 2522: 2516: 2513: 2469: 2466: 2403:Nick Cullather 2398: 2395: 2383:global warming 2314:Main article: 2311: 2308: 2298: 2295: 2294: 2293: 2290: 2287: 2284: 2274: 2271: 2268: 2265: 2256: 2250: 2212: 2209: 2202: 2201: 2190: 2186: 2185: 2177: 2173: 2172: 2157: 2153: 2152: 2133:Columbia River 2125: 2121: 2120: 2105: 2101: 2100: 2077: 2073: 2072: 2042: 2038: 2037: 2034: 2027: 2024: 2022: 2019: 2000:South Fork Dam 1951:Main article: 1948: 1945: 1871:Main article: 1868: 1865: 1863: 1860: 1848:Main article: 1845: 1842: 1794:landslide dams 1747:Colorado River 1730: 1727: 1719:retaining wall 1675:Main article: 1672: 1669: 1667: 1664: 1642:North American 1621: 1618: 1604:, built 1905, 1591:Main article: 1588: 1585: 1583: 1580: 1525:Main article: 1522: 1519: 1473: 1470: 1461:Main article: 1458: 1455: 1446:Main article: 1443: 1440: 1424:Main article: 1421: 1418: 1409:Main article: 1406: 1403: 1389: 1386: 1384: 1381: 1350: 1347: 1309: 1306: 1270: 1267: 1258: 1255: 1243: 1240: 1230:Embankment dam 1228:Main article: 1223:North Carolina 1211: 1208: 1204:tidal barrages 1172:Main article: 1154: 1151: 1138:Main article: 1123: 1120: 1070:Main article: 1067: 1064: 957:Main article: 954: 951: 934: 931: 921: 920: 879: 877: 870: 864: 861: 828:Colorado River 803:, whose firm, 797:Benjamin Baker 753: 750: 745:Rankine theory 714:royal approval 702:industrial era 605:British Empire 570: 567: 501: 498: 458:diversion dams 367:Roman concrete 331: 328: 316:prime minister 244:in modern-day 149: 146: 144: 141: 102:Middle English 66:industrial use 15: 13: 10: 9: 6: 4: 3: 2: 6061: 6050: 6047: 6045: 6042: 6040: 6037: 6036: 6034: 6019: 6016: 6014: 6011: 6009: 6008:Turgo turbine 6006: 6004: 6001: 5999: 5996: 5994: 5993:Tyson turbine 5991: 5989: 5986: 5984: 5981: 5980: 5978: 5975: 5971: 5966: 5956: 5953: 5951: 5948: 5946: 5943: 5941: 5938: 5936: 5933: 5931: 5928: 5926: 5923: 5922: 5920: 5917: 5913: 5909: 5902: 5897: 5895: 5890: 5888: 5883: 5882: 5879: 5872: 5867: 5862: 5858: 5851: 5848: 5846: 5843: 5841: 5837: 5834: 5831: 5830: 5826: 5821: 5817: 5814: 5810: 5809: 5805: 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4256: 4249: 4246: 4233: 4227: 4224: 4219: 4215: 4211: 4207: 4203: 4199: 4195: 4188: 4185: 4172: 4168: 4164: 4158: 4155: 4143: 4137: 4130: 4129: 4121: 4118: 4113: 4109: 4104: 4099: 4095: 4091: 4088: 4081: 4079: 4077: 4073: 4069: 4057: 4053: 4049: 4043: 4040: 4027: 4021: 4018: 4013: 4012: 4004: 4001: 3988: 3981: 3978: 3965: 3959: 3956: 3943: 3937: 3934: 3930: 3918: 3914: 3908: 3906: 3902: 3894: 3888: 3885: 3882: 3878: 3875: 3869: 3866: 3854: 3850: 3844: 3841: 3836: 3832: 3828: 3824: 3820: 3816: 3812: 3808: 3803: 3798: 3794: 3790: 3789:Energy Policy 3783: 3780: 3775: 3771: 3766: 3761: 3757: 3753: 3749: 3745: 3741: 3734: 3731: 3726: 3725: 3717: 3714: 3701: 3697: 3691: 3688: 3684: 3683: 3678: 3672: 3669: 3665: 3664: 3659: 3654: 3651: 3639: 3635: 3634: 3629: 3622: 3619: 3606: 3602: 3598: 3592: 3589: 3584: 3580: 3574: 3571: 3567: 3561: 3558: 3553: 3547: 3544: 3539: 3533: 3530: 3525: 3521: 3515: 3512: 3507: 3501: 3497: 3490: 3487: 3482: 3476: 3472: 3468: 3464: 3458: 3456: 3452: 3448: 3447:90-04-14649-0 3444: 3440: 3434: 3431: 3426: 3420: 3416: 3412: 3411: 3404: 3399: 3397: 3393: 3389: 3384: 3381: 3377: 3372: 3369: 3366: 3362: 3358: 3354: 3349: 3346: 3342: 3337: 3334: 3330: 3326: 3322: 3318: 3314: 3309: 3306: 3303: 3299: 3294: 3291: 3287: 3282: 3279: 3275: 3270: 3267: 3263: 3258: 3255: 3251: 3247: 3242: 3239: 3235: 3230: 3228: 3224: 3220: 3216: 3210: 3207: 3195: 3189: 3185: 3184: 3176: 3173: 3157: 3150: 3143: 3140: 3124: 3117: 3110: 3107: 3104: 3100: 3097: 3084: 3080: 3074: 3071: 3058: 3057:"Lake Moeris" 3052: 3049: 3046: 3030: 3023: 3016: 3014: 3010: 3006: 3002: 2996: 2994: 2990: 2978: 2974: 2968: 2965: 2959: 2956: 2952: 2948: 2942: 2939: 2935: 2931: 2925: 2922: 2919: 2906: 2902: 2898: 2892: 2889: 2882: 2877: 2874: 2871: 2868: 2866: 2863: 2861: 2858: 2856: 2853: 2851: 2848: 2846: 2843: 2841: 2838: 2835: 2832: 2829: 2828:Grout curtain 2826: 2823: 2820: 2819: 2815: 2813: 2810: 2806: 2801: 2799: 2795: 2791: 2787: 2783: 2779: 2776: 2771: 2769: 2765: 2761: 2757: 2753: 2749: 2745: 2744:Lawn Lake Dam 2741: 2737: 2733: 2729: 2721: 2717: 2713: 2709: 2705: 2703: 2699: 2689: 2685: 2683: 2680: 2677: 2673: 2668: 2660: 2656: 2651: 2643: 2641: 2639: 2635: 2631: 2627: 2623: 2619: 2615: 2611: 2607: 2603: 2599: 2595: 2591: 2587: 2583: 2579: 2575: 2570: 2568: 2564: 2560: 2556: 2552: 2548: 2544: 2540: 2536: 2531: 2523: 2521: 2514: 2512: 2510: 2506: 2501: 2499: 2495: 2491: 2487: 2483: 2480:studies, and 2479: 2475: 2467: 2465: 2462: 2460: 2456: 2451: 2450:flood control 2447: 2443: 2439: 2435: 2434:Yangtze River 2431: 2426: 2424: 2420: 2419:Morarji Desai 2416: 2412: 2408: 2404: 2396: 2394: 2392: 2388: 2384: 2379: 2377: 2372: 2369: 2365: 2360: 2356: 2354: 2350: 2346: 2341: 2339: 2336: 2332: 2322: 2317: 2309: 2307: 2305: 2304:archeological 2296: 2291: 2288: 2285: 2282: 2278: 2275: 2272: 2269: 2266: 2264: 2260: 2257: 2254: 2251: 2248: 2245: 2244: 2243: 2241: 2237: 2232: 2230: 2222: 2217: 2210: 2208: 2199: 2195: 2191: 2187: 2183: 2182:diversion dam 2178: 2174: 2170: 2166: 2162: 2158: 2154: 2150: 2146: 2142: 2138: 2134: 2130: 2126: 2122: 2118: 2114: 2111:purposes and 2110: 2106: 2102: 2098: 2094: 2090: 2086: 2082: 2078: 2076:Water supply 2074: 2070: 2066: 2062: 2059:generates 14 2058: 2057:South America 2054: 2050: 2046: 2043: 2039: 2031: 2025: 2020: 2018: 2016: 2011: 2009: 2005: 2001: 1997: 1993: 1989: 1984: 1981: 1976: 1968: 1964: 1959: 1954: 1946: 1944: 1942: 1937: 1933: 1929: 1925: 1921: 1917: 1916:water turbine 1913: 1908: 1906: 1902: 1895: 1891: 1887: 1879: 1874: 1866: 1861: 1859: 1856: 1851: 1843: 1841: 1839: 1835: 1831: 1825: 1823: 1819: 1815: 1811: 1807: 1806:Murghab River 1803: 1799: 1795: 1790: 1788: 1784: 1783:Flathead Lake 1780: 1776: 1772: 1768: 1764: 1760: 1756: 1755:United States 1752: 1748: 1744: 1740: 1736: 1728: 1726: 1722: 1720: 1716: 1712: 1708: 1704: 1700: 1696: 1688: 1683: 1678: 1670: 1665: 1663: 1660: 1658: 1654: 1650: 1645: 1643: 1639: 1634: 1626: 1619: 1617: 1614: 1607: 1603: 1599: 1594: 1586: 1581: 1579: 1577: 1572: 1569: 1564: 1560: 1555: 1553: 1549: 1545: 1537: 1533: 1528: 1520: 1518: 1516: 1512: 1507: 1502: 1500: 1496: 1492: 1488: 1484: 1479: 1471: 1469: 1464: 1456: 1454: 1449: 1441: 1439: 1437: 1433: 1427: 1419: 1417: 1412: 1404: 1402: 1400: 1396: 1387: 1382: 1380: 1378: 1372: 1370: 1365: 1361: 1357: 1348: 1346: 1342: 1340: 1337: 1332: 1307: 1305: 1303: 1299: 1298:Jinping-I Dam 1294: 1292: 1288: 1284: 1280: 1276: 1268: 1266: 1264: 1256: 1254: 1249: 1241: 1239: 1237: 1231: 1224: 1220: 1216: 1209: 1207: 1205: 1202:are known as 1201: 1197: 1192: 1190: 1186: 1182: 1175: 1168: 1164: 1163:Koshi Barrage 1159: 1152: 1150: 1147: 1141: 1133: 1128: 1121: 1119: 1117: 1113: 1107: 1105: 1099: 1095: 1092: 1083: 1078: 1073: 1065: 1063: 1061: 1056: 1054: 1050: 1049:Wildhorse Dam 1045: 1043: 1039: 1030: 1026: 1022: 1018: 1015: 1011: 1007: 1002: 998: 994: 990: 986: 977: 973: 969: 965: 960: 952: 950: 948: 944: 940: 932: 930: 928: 917: 914: 906: 896: 892: 886: 885: 880:This section 878: 874: 869: 868: 862: 860: 857: 852: 849: 845: 841: 837: 833: 829: 825: 821: 817: 812: 810: 809:Ernest Cassel 806: 802: 798: 794: 790: 786: 782: 779: 775: 774:Aswan Low Dam 767: 763: 758: 751: 749: 746: 742: 738: 734: 728: 726: 722: 717: 715: 711: 707: 703: 699: 694: 692: 688: 684: 680: 676: 668: 664: 659: 655: 653: 649: 648:North America 645: 641: 637: 633: 629: 625: 620: 618: 614: 610: 606: 601: 599: 595: 591: 584: 580: 575: 568: 566: 564: 563: 558: 554: 550: 546: 542: 538: 534: 529: 527: 523: 519: 515: 506: 499: 497: 495: 491: 487: 483: 479: 478:Islamic world 475: 471: 470:Pul-i-Bulaiti 467: 463: 459: 455: 451: 447: 443: 439: 438:Band-e Kaisar 435: 427: 426:Band-e Kaisar 422: 418: 416: 412: 408: 404: 403:buttress dams 400: 396: 390: 388: 384: 380: 376: 372: 371:Lake Homs Dam 368: 364: 360: 356: 352: 345: 341: 336: 329: 327: 325: 321: 317: 313: 309: 305: 301: 299: 295: 291: 287: 282: 280: 276: 272: 271:Eflatun Pınar 268: 266: 262: 258: 254: 249: 247: 243: 238: 236: 232: 228: 224: 220: 216: 215:Amenemhat III 212: 208: 207:diversion dam 204: 200: 197: 192: 190: 186: 185:Lake Homs Dam 182: 178: 174: 169: 167: 163: 159: 155: 147: 142: 140: 136: 132: 130: 126: 122: 117: 115: 111: 107: 103: 99: 94: 92: 88: 84: 79: 75: 71: 67: 63: 59: 55: 51: 50:surface water 47: 39: 35: 30: 26: 22: 6003:Pelton wheel 5924: 5819: 5812: 5787: 5768: 5738:(1): 58–68. 5735: 5731: 5712: 5693: 5674: 5665: 5661: 5628: 5624: 5583: 5579: 5570: 5566: 5543: 5520: 5501: 5476: 5472: 5459: 5397:(1): 13279. 5394: 5390: 5339:(2): e1164. 5336: 5332: 5296: 5287: 5275:. 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377:, both in 308:irrigation 294:Tamil Nadu 265:Ḥimyarites 83:floodgates 78:Hydropower 58:irrigation 54:Reservoirs 5976:equipment 5760:111915102 5653:182485278 5616:199071096 5493:115846219 5419:2045-2322 5369:114768364 5361:2049-1948 5277:16 August 4809:Rotterdam 4779:10 August 4747:10 August 4641:0167-6369 4597:1816-7950 4523:1932-6203 4453:2049-1948 4358:1540-9309 4289:0701-1784 4218:1324-1583 4112:0006-3568 3858:7 January 3802:1409.0002 3795:: 43–56. 3706:2 January 3471:Routledge 3415:Routledge 3063:14 August 2736:Malpasset 2720:Johnstown 2659:Teton Dam 2551:reservoir 2468:Economics 2411:the state 2093:River Dee 2033:Function 1980:fuse plug 1947:Spillways 1920:generator 1735:Lava dams 1695:cofferdam 1677:Cofferdam 1649:log house 1613:steel dam 1593:Steel dam 1426:Check dam 1420:Check dam 1360:reservoir 1236:compacted 1091:resultant 1006:abutments 997:stiffness 953:Arch dams 801:John Aird 679:Australia 617:Hyderabad 590:arch dams 581:locks at 549:Rotterdam 537:Amsterdam 514:Kurit Dam 494:aqueducts 482:watermill 417:in Iran. 399:arch dams 355:reservoir 351:Roman dam 312:Sunshu Ao 292:River in 242:Dholavira 166:Euphrates 114:Rotterdam 110:Amsterdam 96:The word 40:, Germany 5836:Archived 5608:31466207 5573:: 39–56. 5437:30185796 5202:9 August 5170:9 August 4863:Archived 4657:46471207 4649:16565804 4585:Water SA 4541:26540105 4493:PLOS ONE 4062:1 August 3877:Archived 3827:55722535 3666:, c.1906 3465:(1996). 3099:Archived 3038:1 August 2928:Source: 2816:See also 2780:raid on 2674: – 2672:grouting 2626:riverbed 2602:sediment 2567:habitats 2559:braiding 2539:sediment 2494:rainfall 2423:Pong Dam 2349:spawning 2335:sand bar 2211:Location 2117:Aral Sea 2097:Claerwen 2065:Paraguay 2036:Example 2021:Creation 1953:Spillway 1924:penstock 1858:winter. 1818:Pakistan 1798:Usoi Dam 1739:basaltic 1715:causeway 1699:concrete 1606:Michigan 1544:tailings 1436:wing dam 1356:Colorado 1153:Barrages 1010:buttress 1008:(either 976:arch dam 974:, is an 972:Tasmania 959:Arch dam 903:May 2014 799:and Sir 683:arch dam 520:, South 444:through 286:Kallanai 173:Jawa Dam 168:Rivers. 156:and the 121:Jawa Dam 5752:3102810 5633:Bibcode 5588:Bibcode 5542:(ed.). 5448:Sources 5428:6125403 5399:Bibcode 5341:Bibcode 5144:1108425 5017:27 June 4707:: 35–45 4621:Bibcode 4532:4634923 4501:Bibcode 4431:Bibcode 4336:Bibcode 4267:Bibcode 3993:18 July 3970:18 July 3948:18 July 3835:2406852 3807:Bibcode 3774:9349830 3765:1470397 3658:Finance 3644:10 July 2936:), 1947 2834:Ice dam 2822:Bunding 2805:IJkdijk 2782:Germany 2661:failure 2644:Failure 2580:in the 2547:erosion 2490:climate 2432:on the 2391:methane 2338:erosion 2229:masonry 2131:on the 2089:Chester 2051:on the 2017:curve. 1928:turbine 1855:Beavers 1830:Wyoming 1779:Moraine 1769:by the 1767:Montana 1753:in the 1751:Arizona 1506:aquifer 1487:Okinawa 1448:Dry dam 1442:Dry dam 1432:erosion 1371:(NID). 1287:acre⋅ft 1279:acre⋅ft 1263:removal 1257:By size 1183:on the 927:beavers 832:Arizona 826:of the 783:on the 778:masonry 735:at the 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Index

Dam (disambiguation)

Edersee Dam
Hesse
surface water
Reservoirs
irrigation
human consumption
industrial use
aquaculture
navigability
Hydropower
floodgates
levees
dikes
Middle English
Middle Dutch
Amsterdam
Rotterdam
Jawa Dam
Jordan
Kallanai Dam
Mesopotamia
Middle East
Tigris
Euphrates
Jawa Dam
Jordan
Amman
Lake Homs Dam

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