Dams and their usefulness.

From: Economic Review | Date: November 1, 2006| Author: Alam, S.M. | Copyright information

In a greater sense, the word DAM is an embankment to store water and thus the water is confined. Dam is therefore a barrier, which is built across a water course of a normally giant river of a country to hold back firmly the mighty water, often forming a big reservoir or lake. Dams are made of timber, earth, rock, masonry, concrete or combinations of these materials. Timber is seldom used in a dam because, timbers are impermanent and their height is not reasonable. Dams made from r...

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