Diversion Head Works
Diversion Head Works

Diversion Head Works

INTRODUCTION A structure whose main purpose is to supply water to the off taking canal is know as head works. When the off taking canal is to supply water for irrigation purpose, its headworks is call irrigation head works. Irrigation headworks may be divid into two categories. 1. Diversion headworks or simply head works. 2. Storage headwork. 1. Diversion head works. The purpose of this head work is to divert river water into the off taking canal. It is located across the river near the point of the take-off of the canal. A diversion headwork performs the following functions: It regulates the flow in the off-taking canal. Silt entrance into the canal is controlled. It raises the level of water in the river. This causes diversion of the river water into the off taking canal, under gravity flow. By raising the level of water in the river with the help…

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Location of diversion head works
LOCATION OF DIVERSION HEAD WORKS

Location of diversion head works

LOCATION OF DIVERSION HEAD WORKS The total length of the river may be divide into the following four stages. 1. Mountainous stage. The first length of the river originating from hills is know the mountainous stage of the river. The longitudinal slope in this stage is very steep and the velocity of the flow of water, very fast. The width of the river in this region is generally very small. This region is found most suitable for the construction of storage works like high dams. Large storages are possible very deep valleys are easily available here. Moreover, the length of the dam is also relatively small. Materials of construction are locally available. This stage is however not suitable for diversion works. 2. Sub-mountainous stage. The bed and banks of the river in this stage are made of gravel. The velocity of flow is considerable though smaller than first stage. The…

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