4.2. Canal head regulator

The structure constructed at the head of the canal which takes off water from a reservoir and consists of number of spans separated by piers is called head regulator.

• It is operated by gates.
• It is aligned at 90° to the weir.
• It is used for diversion of flow to canal.

Functions of canal head regulator:

• To supply water into the off taking canal.
• To regulate the supplies into the canal.
• To calculate discharge of flow in canal.
• To control entry into the canal.