personally i think the only thing that should be done on clear creek would be to remove the rebar.
learning when to portage is a big part of progressing as a boater... the dam can be run and it even has a killer boof at the right level, the rebar on the other hand can and will really mess up up if you screw up in there.
What would be happen if someone went it and cut those out? you know with out official permission...
"We should restore the practice of dueling. It might improve manners around here" -Edward Abbey