I have a brook at the bottom of my property; currently a culvert empties into a small pool that then flows further downhill to the brook. I'm interested in adding a few more feet of depth to the pool by build a small dam at the other end and perhaps building a micro-hydro wheel.
Now I understand there are both legal implication and ecological implications and I want to be cautious of both.
I was contemplating doing a few things to address the ecological implications. I could construct something that has a pipe at the very bottom that allows a continuous flow of water, however, I'm not certain if the flow will be too great for fish to make it through, or if they would even go through such an opening.
Another thought I had was to make the center of the dam completely removable, So that periodically I can change the level and the flow back to normal. I also think that temporary solutions like the Aqua barrier or Watergate are interesting solutions.