Finding out I could build it that way was a complete accident.. I attached short lengths of cable to the centre deck pieces as sometimes that can strengthen a link box that has other cables going through it.
They just happened to flop in the right place to hold it up, and that little light bulb flashed above my head ;-)
Calis, I'm almost embarrassed about beating your awesome, elegant bridge with my comical creation! It was more luck that creativity I must admit.
And I agree with Gray... it's something that really shouldn't work (and obviously wouldn't work in real life!) and should probably be either ruled out, or made impossible by clever level design in future.