Environmental Impacts of Dams and Reservoirs

814 Words Feb 16th, 2018 3 Pages
“A dam is any barrier that holds back water; dams are primarily used to save, manage, and/or prevent the flow of excess water into specific regions” (Briney). Let’s look at the problems, the causes, effects, possible solutions, and the best solution for doing as little damage to fish populations where dams are necessary to be built.
“There are several different types of dams and the man-made ones are classified by their size and structure” (Briney). A large dam can be known as being as high or even higher than 50-65 feet, while there are also major reservoirs that are over 492-820 feet tall (Briney). There are three types of dams. Each type of reservoir looks different and is built for a specific reason. One of the three types of reservoirs is a valley dammed reservoir, the largest type of reservoir and is located in narrow valley areas where large amounts of water can be held in by the valley and a dam (Briney). Dams have to be built in a particular place, they can’t just be erected anywhere. You can’t just go out and build a dam; it takes a lot of planning and is very time consuming. “The best location for a dam in these types of reservoirs is where it can be built into the valley wall most effectively to form a water tight seal” (Briney). Another type of reservoir is a bank-side reservoir, bank-side reservoirs are formed when water is taken from an existing river and is stored in a…
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