4.7 Cross Drainage Works

• Cross drainage work is a structure constructed at the crossing of a canal and a natural drain when there is an intersection in the alignment of the irrigation canal.
• It is provided to prevent drain water from mixing with canal water.

Types of cross drainage works in irrigation engineering are as follows:

• Aqueduct
• Syphon aqueduct
• Level crossing
• Super passage
• Canal syphon
• Canal inlets and outlets