The saturation line is the line up to which banks get saturated after the canal runs for some time. The saturation gradient in ordinary loam soil, is generally

Irrigation engineering is the process of artificially supplying water to the soil in order to grow crops. It is the science of designing and planning an efficient, low-cost irrigation system that is tailored to natural conditions.

Irrigation engineering is also being used to research water recycling methods and develop new ways of minimizing water seepage and evaporation loss.