I'm a huge fan of public art, however I'm strongly opposed to this project. We have beautiful towns, cities, and man-made infrastructure that is truly a work of art. Our beautiful man-made world isn't nearly as grand nor as beautiful as the natural world around us. It's ridiculous to try to impose our ugly man-made world in a large scale and permanent way on what's left of the natural environment of the Arkansas river. If you want to beautify the man-made whitewater park or town corridor, for a few hundred yards, then that's cool with me. If you want to hang rags over the downtown Denver skyline for a day or two, I'm down because it's man-made art attempting to beautify man-made art. When you start decorating nature, especially through a large scale construction project that does leave impact behind, it becomes an assault on the environment. It's irresponsible and wasteful.
My 2 cents... not that I should care, since I rarely float that stretch anyway, and probably won't once they make it indoor.