Paul--that's been looked at, apparently. My first choice, in fact. It appears that there are no suitable trees, according to the DEC. I had meant to go over to Denning a month or two ago to check this and some other stuff out. I didn't find time but I suspect it is true, as large growth close to the channel would wash out.
Jay, that has to be one of the most pointless bridges I have ever seen <g>. Maybe, like the brook like Slide parking lot, it's capable of being a killer in season, but I kinda doubt it. Seriously, a suspension design wouldn't work on the Neversink without real engineering, inimical to the idea of wilderness. Not that the river crossing is in an especially wild area, but I'd not want to see concrete pilings or something ridiculous.