It used to be that the run from Tailwater boat ramp at the dam down to Danskin Bridge was a very easy run to do in one day, about 10 miles. From dam to Indian Rock all manner of driftboats and float cats run it. Beyond that, down to the bridge, there were a few low and rocky spots, easily navigable and a short rapid at lone pine that is pretty easy if you scouted it. OK, then the blowouts of last year.
Now there is a significant class 3ish rocky rapid just below Tailwaters boat ramp. There is a video on The Idaho Anglers facebook paging showing a raft running it.
You can input at Village boat ramp to avoid it.
The rapid at Lone Pine is gone due to blowout but I haven't scouted that area since flows were increased to 1600, and I would do that before running it.
So, it is day float from dam to Danskin
It is also a day float. it is an easy shuttle with dirt road all the way
Now, the canyon stretch from Danskin to Neal Bridge also is a day float unless you are a slow fisherman. It is roadless and the shuttle is a pain. Connie Carrico 208 868-3255 will shuttle you for reasonable $$
It is a solid class 3, very busy toward the bottom end, very cold water and limited help in the event of an issue. I have seen boats floating it at low flow even so I know the blowouts did not cause log jams or anything impassible.
Raspberry is the most notable rapid but there are a handful of named rapids and countless rocks to avoid.
I love the run myself, I usually scout Raspberry but not of the others but haven't seen it this year