Aquaculture Engineering

Unit 11 - Water distribution and control structures

Water control structures or Gates

Secondary gates

Secondary gates regulate the flow of water from the main feeder channel to the secondary feeder channels. In many farms, they are also used to convey water from the secondary feeder channel into the ponds. Generally they are made of concrete, R.C.C., brick masonry or wood. A typical design of secondary gate is show in fig. The secondary feeder channel bed should be wider than its supply gate by at least 0.5 m on both sides to minimize scouring.