Fish-Saving Radial Gate
Revolutionary RSA Overshot/Undershot Gate allows fish to safely swim over dams.
Traditional radial gates kill fish,
Overshot/Undershot gates help save them.
Unlike traditional radial gates, RSA’s innovative gate is safer for fish.
- No need to remove dams
- No need to transport fish from dam areas
- No need to sacrifice hydropower generated by dams
RSA Overshot/Undershot Gates can replace existing radial gates with minimal interruption to dam operation.
It’s a simple solution to a complex challenge.
With traditional radial gates, water flows under the gate. The resulting weight and pressure of the water cascading from the spillway inundates and actually drowns fish. Our system allows fish to swim over the dam without affecting the dam’s performance.
It’s a win-win for the dam operators, the environment, and especially the fish.