Saturday, June 6, 2009

Types of Canals

The canal system consists of the following
Main Canal
Main Canal takes off directly from the upstream side of weir head works or dam. Usually no direct cultivation is proposed. Most of the main canals are aligned as contour canals to derive benefit.
Branch Canal
All offtakes from main canal with head discharge of 14-15 cumecs and above are termed as branch canals.
Major Distributary
All offtakes from main canal or branch canal with head discharge from 0.028 to 15 cumecs are termed as major distributaries.
Minor Distributary
All offtakes taking off from a major distributary serving more than 40.47 hectares are termed as minor distributaries. They are named after a prominent place near about their tail ends.
Field Channel
All pipe offtakes serving less than 40.47 hectares of ayacut are calledfield channels and are denoted by numbering as left or right side pipes.

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