What the benefits of this dam's absence will be is not yet clear. It opens up salmon spawning habitat, but it is clear that their disappearance from this part of the world is not due to issues in the streams. Eels will have an easier time getting into spots upstream. I'm sure the absence of a big flat stalled pond in this river will improve summertime temps and oxygen levels. Who knows? It will be interesting to see, that much is clear.