what is a dam? what are the different types of dams.
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A dam is a barrier across flowing water that obstructs, directs or retards the flow, often creating a reservoir, lake or impoundment.
Dams are classified according to their structure, intended purpose or height. On the basis of structure and material used, dams are classified as:
Timber dams
Embankment dams or masonry dams.
-According to their height, dams can be categorised as:
Large dams or major dams
Low dams
Medium height dams
High dams
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