I cruised up to Crab Flats on Sunday (had to get out and play in the snow/mud). It looks like the campground is a bit singed, but for the most part everything is standing. There was one part on the road where you can get a pretty good view to the west, and it looks like pretty much everything west of Crab Flats was gone. I didn't go on any of the trails since I was alone, but it didn't look like they were blocked off or anything. I'd be interested in doing an exploratory run up there one of these days.
-Mike