Drove from Boston Bar to Lillooet. Road in good 2WD shape as far as Nahatlatch. Gets spicier after that. Between Nahtaltach and Skwayaynope (south of Lytton ferry) bridges are gone but you can ford the creeks. For Kamiak Creek we took the very steep upper side road that follows the powerlines (turn off just after Pooeyelth Cr) as there was a bunch of flagging on it. We did not investigate the crossing on the lower/main road so I am not sure if that would have been a better option. 4WD and HC recommended. After Skwayaynope it is back to 2WD shape all the way to Lillooet although I guess that is a different road.