Would not recommend hiking this road... you're competing with motorcycles, ATVs, and lots of other 4WD offroad vehicles (and their fumes/noise). Was not a fun hike by this route. I do like Dropmo40's night hike idea for this route.
I parked at the very bottom of the road and hiked all the way from there. I cheated and cut the switchbacks on the way up. I caught a ride with some other hikers on the way down.
started at 8 pm summited at 1030pm down by 1230am can i make back to summit, i dont think so