Hopefully, Theo's post will help you get some pictures up.

I never thought of using quickcrete in the bags. Good idea.

I think that when damning up a creek, you have to figure on some amount of leakage around or through the dam.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."