Head Work & its Type.

Head Work:- 
 
                         Any hydraulic structure which supplies water to the off taking canal known as headwork.


Headwork divided into two parts:-
Storage Headwork:-

                                          
Dam is constructed across a river valley to form storage reservoir, known as storage head works. Water is supplied to the canal form this reservoir through canal regulator. The storage headwork is generally used to store the water.


 


Diversion Headwork:-

                                            The works, which are constructed at the head of the canal, in order to divert the river water towards the canal, so as to ensure a regulated continuous supply of silt-free water with a certain minimum head into the canal, are known as Diversion Head Works.


Objectives of Diversion Head Works:-

  • To rise the water level at head of the canal.
  • To form a storage by constructing dykes (embankments) on both  the bank of river so that water is available throughout the year.
  • To control the entry of silt into the canal and to control the    deposition of silt at the head of the canal.
  • To control the fluctuation of water level in the river during different seasons.

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