Dams are a major foundational part of modern infrastructure, and they always have that a big part of man’s ability to become civilized – even since ancient times. After the construction of many dams, erosion of the surrounding land has been noticed.
7. If a dam were to be removed, rivers and other waterways would most likely try to reclaim its old channel, which means that expensive river training structures, like bank protection and bendway weirs, would have to be deployed in order to keep the river on a certain path. In the following decades, nations like Pakistan, India, Spain and Switzerland constructed dams. Dams have been used for centuries for irrigation. According to FEMA, hydroelectric power currently amounts to 8 to 12 percent of current electricity needs, and overall creates about 100,000 megawatts of electricity. FEMA says dams also help facilitate the nationâs waterways, making river transportation seamless and easy, and reducing the risk of water-borne accidents or other problems, which could negatively affect the environment. When building a dam, it is necessary to learn more about its pros and cons to fully utilize its use while combating on its weaknesses.
 However, their existence is contentious. Dams allowed ancient armies to transform the terrain that they were going to fight on but it also allowed ancient city planners to shuttle water into their cities and towns from faraway sources. Displacement of people: People who live in the nearby area are forced to move out due to floods. It also interferes with wildlife migration patterns. Dams also trap toxic components in water thus helping to protect the environment. Flood control dams specifically mitigate floodwaters by impounding water and then safely diverting the water towards other places. The stored water can be used for irrigation purposes. This makes it an effective means of generating a renewable source of energy. 1.
This ongoing availability is a huge factor when weighing the hydroelectric dams pros and cons. When President Franklin Roosevelt opened the Hoover Dam in 1935, he remarked how âI came, I saw and I was conquered.â The Hoover Dam was the largest concrete structure on the planet at the time. Dams have been the world’s preferred source of generating electricity and for recreational activities. And judging by some of the new information that we have studied in the last 20 or 30 years it’s not difficult to see their viewpoint.
The Aswan High Dam in Egypt gives local farmers protection against the harsh droughts and famines of the desert by controlling the water supply of the mighty Nile river. Hydroelectric power: One of the most beneficial aspects of dams is the potential to create hydroelectric power. Dams definitely have the potential to trap layers of sediment that wouldn’t have otherwise been deposited at the base of the dam, and these trapped layers of sediment can re-Catholic on the overall ecology of that particular waterway.
Rushing floodwaters replenish the nutrients in the soil in water, which is beneficial to all plant and animal life in rivers and other waterways. Deforestation: The land used for the construction of dams leads to deforestation. Hydroelectricity is one of the most studied forms of alternative energy, as it is relatively reliable and stable, and most hydroelectric power plants have low maintenance and operational costs.
Hydroelectric power: Water stored in the dam is used to generate electricity.
The engineering and technical aspects, along with the actual construction, is a time intensive and laborious process that has to be done with absolute precision. Much of the sediment has fallen into the reservoir, which means there is less land around to farm and work on. Environmental protection: They help to facilitate waterways and reduce risks associated with waterborne diseases in an environment. Learn how your comment data is processed.
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