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Purpose Use of Cross Head Regulator

By: Haseeb Jamal / On: Jan 18, 2017 / Definition, Notes, Advantages, Canal Irrigation
Cross Head Regulator
 
 

Cross Head Regulator

Definition:

A cross regulator is a structure constructed across a canal to regulate the water level in the canal upstream of itself and the discharge passing downstream of it for one or more of the following purposes:

  1. To feed offtaking canals located upstream of the cross regulator.
  2. To help water escape from canals in conjunction with escapes.
  3. To control water surface slopes in conjunction with falls for bringing the canal to regime slope and section.
  4. To control discharge at an outfall of a canal into another canal or lake.

Cross Head Regulator (Machai Mardan)

Cross Head Regulator (Machai, Mardan)

It is also called a canal head regulator. A cross regulator is generally provided downstream of an offtaking channel so that the water level upstream of the regulator can be raised, whenever necessary, to enable the offtaking channel draw its required supply even if the main channel is carrying low supply. The need of a cross regulator is essential for all irrigation systems which supply water to dis-tributaries and field channels by rotation and, therefore, require to provide full supplies to the distributaries even if the parent channel is carrying low supplies. Cross regulators may be combined with bridges and falls for economic and other special considerations.

 

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