Washout at 21km has long since been repaired and drivers are regularly making it to Grizzly Falls at around the 41km mark. See:
https://www.facebook.com/groups/4wdabc/permalink/10159835244771009/ for more. Sean Reilly also reports: "Nahatlach was repaired enough to get access to the cabins. The road beyond is passable, but involves a slightly tricky water crossing, some snotty sections, and some minor rockfall and edge failures in the narrow section around 26-28km. "