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It is a technique of diverting water to the canal, when a weir or barrage is constructed across a perennial river to raise the water level. Diversion Head Works serves several objectives as follows: To raise the water level at the head of the canal. To form a storage by constructing dykes on both the…
What is Cross Drainage Work? In an irrigation project, when the network of main canals, branch canals, distributaries etc. are constructed then these canals may have to cross the natural drainage like rivers, streams, etc. at different locations within the command area of the project. The crossing of the canals with such obstacles cannot be avoided….
What is Canal Lining? Canal Lining is the impervious layer which protects the bed and sides of the canal. Canal Lining is done to assure economical water distribution, reduction in the possibility of breach, prevent silting of channel and to increase head for power generation. In a lined canal the resistance of flow decreases and…
Hydraulic structures are constructed across the river to retain water at upstream side so that it can be used in future for different purposes. The basic purpose of hydraulic structure is to store water in reservoir for generating electricity, for irrigation and for general needs by humans. There are different types of hydraulic structures constructed according to needs…
What is Irrigation? Irrigation is the process of supplying water to soil for raising crops. It is a science of planning and designing an efficient and economical irrigation system. It includes construction of dams, weirs, barrages and canal systems for the regular supply of water to agricultural fields. Irrigation is necessary in an area where…
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