Thanks for the pix. They're quite educational. I never considered hanging length-wise on the bridge beams. Always thought of hanging sideways, beam-to-beam. Most bridges around here are I-beam constructed, so maybe a coupla C-clamps will work. Yeah, now I can be a gen-you-wine Bridge Bum! Gonna hafta try out your system this weekend. That just shines! Hope the homeless folks aren't too unfriendly.