Finishing Trash Rack

I planned to build a security fence from the mill to the walkway.  This way I could walk from the door (I restored) to the walkway and rake the trash rack.  I was concerned about folks walking around on the walkway and the fence would keep them off.    I had put up a sign “DANGER – STAY BACK 30 FEET – DANGER”  This seemed to keep folks off.  So, I just added more boards instead of the fence.  This will allow more water into the mill.  The fence would restrict some of the water flow.