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Lec22 - University of California Berkeley Civil Engineering...

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University of California, Berkeley Professor Ken Johnson Civil Engineering 70 Engineering Geology Civil Engineering 70 Lecture 22 11/13/07 Dams are not the popular in California for environmental concerns o More sustainable means of storing water would be storing in emptied aquifers Hydroelectric Dams o Pen stocks are the pipes that take water to the turbines o Tail Race Outlet is the pipes and ext the turbines Why Build a Dam o Stabilize Water Supply for agriculture, municipal supply, and ecological supply o Flood Control Questionable, since dams get filled with silts and eventually provide little control Dredging is not a economical option o Recreation o Hydroelectricity Types of Dams o Gravity Dam o Want the Shell to be strong material which is structural
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