This is an idea that was tried and proven successful back in ’37, the last time the Morganza Spillway was opened. No, I don’t understand how this works either, but sinking a few barges evidently forms a barrier which prevents water from the Mississippi River from entering the mouth of the Atchafaylaya River, which in turn prevents flooding in several towns. Here’s a link to Fox 8.com that has a video showing the barges being sunk. Be sure to read the comments. One person asks if the barges stay there forever. I’m pretty sure they’ll be removed after the flooding is over. Must be quite a job to move them after they’re sunk and full of water, but I’m sure they can do it. One of the more interesting comments is about sinking old Navy ships. This person may be on to something. As he/she notes, “this isn’t Chinese arithmetic.” I think it sounds like a great idea. We can do this.