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What are the functions of Under Sluices gates in canal Head Works?
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Under Sluices are gates controlled openings in the weir with crest at low level. They are located on the same side as off-take canal. If two canal take off on either side of the river, it would be necessary to provide undersluices on either side.

Functions of under-sluices

■    To preserve a clear and defined river channel approaching the canal regulator.
■    To scour silt deposited in front of canal regulator and control silt entry in the canal.
■    To facilitate working of weir crest shutters or gates. The flood can easily pass.
■    To lower the highest flood level.
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