I came into Phantom Canyon from highway 50. I had read a few reviews that had me concerned. Maybe those people don't get out a lot. The road is in good shape. I drove my long bed, 4 door truck and towed a 15 foot pop-up camper. No worries at all. The road is wash-board here and there but nothing major. Plenty of room and where the road narrows a bit to 1 1/2 lanes, there are plenty of pull-offs. The tunnels are single lane, but plenty wide enough for anything to get through. There is nice camping near the creek at 9.3 miles and 11.3 miles from highway 50. But know that you will not get your camper or trailer down there. And you need an awd or 4 wheel drive with good clearance. Rocks, steep drives to these camping spots. This is a canyon where tent camping is king. There are numerous camping spots closer to the road where you can camp. There are numerous bridges, but THE bridge is at about 13.7 miles into the canyon, again from highway 50. High, long and winding bridge that is red. On the other side of the bridge, the road narrows considerably and is indeed one lane in many places. I was quite comfortable and again, there are lots of pull-outs where one driver can pull over or back up a little bit. On a Saturday around noon I only passed 4ish cars and there was no issue.  Beautiful canyon.