Due to the storms/flood last year there is no longer a bridge over the Roaring River. This log crossing is now in place and is less than 25 feet from where the trail meets the river. Hope this helps, for anyone interested in getting to Ypsilon Lake, Spectacle Lakes or Donner or Blitzen Ridge.
http://www.summitpost.org/roaring-river-log-crossing/908360
http://www.summitpost.org/roaring-river-log-crossing/908362