Fish ladder
FISH LADDER

Fish ladder

FISH LADDER A fish ladder is a fish pass provide along the divider wall to enable migrating fishes to move from U/S to D/S and D/S to U/S direction, in different seasons. Fish ladders are provide on all such works which hinder their movements. The fish ladder is always locat along the divider wall as some water always remains here. The fish ladder consists of a rectangular trough having a sloping floor joining water levels on D/S and U/S of the weir. The difference in water level on the U/S and D/S sides of the weir is divide into several water steps with the help of a baffle   walls, constructed across the inclined floor. The slope of the fish ladder should not be steeper than 1: 10 so that velocity of flow in it does not exceed 2 m/sec. To exercise effective control on the flow through the fish…

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