FISH-PASSING APPARATUS Russian patent published in 1994 - IPC

FIELD: hydraulic-engineering construction. SUBSTANCE: stream going fish is forced to go to the space between dam 1 pressure side and debris guarding wall 7 and then - into upper part of water-guide 2. Guiding deflector 6 provides for the fish passing to fish collecting capacity 3 and then - to a fish guide 5. Crossing ribs 9, fixed on debris guarding wall 7 side, that faces dam 1, and openings 8, located between the ribs and the wall, assist concentration of fish on the way to guiding deflector and fish lead off to the tale race. EFFECT: apparatus provides for transportation of fish from surface water layer of head race to tail race. 1 dwg