In reply to atibbs:
Last Monday (the bank holiday), the road was passable at least as far as the parking for Stob Gabhar and the other munros in that group. There were several parties parked there, so it wasn't just me who made it through.
I drove through some areas of ongoing work, and passed a couple of Road Closed signs. There were no places where the road was actually blocked, and the few workers who were around didn't stop me. A stretch of maybe a couple of miles had been resurfaced between the time when I parked at ~7.30 am and when I left at ~5 pm - I don't know if this would have caused problems if I had arrived later or tried to leave earlier.
As an aside, the stretch that was resurfaced on that day appeared to have been surfaced with white sand - it was very slippery so take care!