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    To Dam, or Not To Dam

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    To Dam, or Not To Dam “The River, slightly milky from glacial sediment, tumbles down rocky chutes, boils through tight canyons, and glides across beds of agatelike stones. In the distance, poking through storm clouds, are plunging slopes dense with virgin hemlock and fir…Intruding into this primeval scene are two decrepit dams” (Reisner, 382). In this essay by Marc Reisner, his standpoint on the issue of dams is very well seen. Reisner talks of the ecological damages that dams create. The

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    Dams

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    have used dams since early civilization, because four-thousand years ago they became aware that floods and droughts affected their well-being and so they began to build dams to protect themselves from these effects.1 The basic principles of dams still apply today as they did before; a dam must prevent water from being passed. Since then, people have been continuing to build and perfect these structures, not knowing the full intensity of their side effects. The hindering effects of dams on humans

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    Water Dams

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    Water Dams Most dams are designed to accomplish a variety of functions, which include flood control, flat water recreation, hydropower electricity generation, and water supply. Although these seem like good reasons for the existence of dams, this type of constructions bring greater negative effects than good ones. The "environment effects of dams include loss of land and biological resources to inundation, reservoir sedimentation and downstream erosion, and hydrological changes unfavorable to

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    Dam Dams Essay

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    Embankment Dam Filters Introduction The embankment dam is a massive man-made water barrier. It is created for the purpose of compaction and emplacement of semi plastic mounds having the composition of various components such as soil, clay and rock etc. Nature provides a pseudo permanent waterproof covering for the surface and waterproof core of such dams. The principle of working of such dams is, the force of impoundment creates a downward thrust upon the mass of dam which increase the weight of dam on its

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    The Building of Dams

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    The Building of Dams The earliest remains of dams that archaeologists have unearthed date back to around 5000 A.D.They were constructed as part of a domestic water supply system for the ancient town of Jawa in Jordan. Over the next few millennia, the building of dams for water retention spread throughout the Mediterranean, the Middle East, Southern Asia, China, and Central America. Later, as technologies increased and industrialization took hold in Europe, dam mechanisms advanced to incorporate

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    Essay On Water Dams

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    The good water come from the dam and reservoir. According to Amanda Briney, a dam is any barrier that hold back water and its also defines as a primarily used to save, manage, and prevent the flow of excess water into specific regions. When discussing about dams, another term often used is reservoir. A reservoir is a manmade lake that is primarily used for storing water, and it can also be defined as the specific bodies of water formed by the construction of a dam ( Briney,A). Woodward(2004-2005)

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    Based on the events that lead to the devastating floods in Queensland and the eventual case that was brought against the engineers of the dam, there have been views from both sides of the divide as to whether or not the actions taken by the engineers were actually ethical or otherwise. We have explored this avenue and have found that both sides of the divide have good reasons to justify their actions. Firstly, we shall explore the avenue that the engineers decisions were appropriate and ethical.

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    Critique of Dams and Disease According to Ziegler et al (2013) building of hydropower dams threatens to decrease species and the amount of freshwater fish in the Mekong River. The article goes on to claim that there will be negative effects on food safety and river health if dams are built that will change the flow of the river. They project that people will be affected in a negative way with just one dam and even more devastation could be faced with the series of dams that is expected to be built

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    Hoover Dam

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    Hoover Dam The Hoover Dam is one of America¡¦s greatest civil engineering marvels (Hernan 22) and ¡§has become a magnet to those fascinated by human ingenuity at its best¡¨ (Haussler 30). With its enormous size and construction during the Great Depression, it was an interesting topic to me. I would like to major in civil engineering and, at first, I was researching this topic. I was looking for salary and job descriptions. Then, I discovered the name John L. Savage, the engineer who supervised

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    Big Dams

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    Big Dams In their decisions about using resources from rivers, governments are facing issues of land use, energy production and extraction of natural resources. Dams reveal the dilemmas that are faced while trying to meet numerous conflicting needs of humanity, and planning strategies such important projects must strive for ecologically sustianable systems that can support the earth's growing population. Introduction Recent years have seen the removal of a number of dams across the United

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