Please do one for people! we desperately need this to commute from work and back!!Is this for real? Those fish are going through one hell of a ride. I assume this is like the land bridge concept for deer.Build small streams around the dam with rocks and concrete. Make it deep enough for the salmon into it. Control the depth with gates and use it only when the salmon come to spawn. A controlled depth shouldn’t lower the water behind the dam to much. Wild Salmon are a multi billion dollar industry, also one of the healthiest food.