Nibutani Style Fishway Gate (Swing-Shoot Type)
Proceedings of the International Symposium on Fishways '90
The flap gate for fishways in which each fish ladder is operated separately was developed as an accessory facility to the river gate. If a conventional fishway gate is installed in the fishway facility of a dam with a greatly fluctuating water level, dimension enlargement and gate mechanism complexity are among the anticipated problems. We developed a sectory gate type fishway gate by mobilizing the water way itself, ensuring excellent economy and stable function regardless of water level fluctuation.