man910 from DC on 6/11/2023 1:32:07 PM:
I recently did the road bypass to the top from Pittsburgh to DC. Except for a very steep but short section at the end of Sulphur Spring Road, which is a dirt road, onto Oldtown Road, it wasn't bad at all. Oldtown Road itself has cars traveling at high speed, but you are only on it briefly, 0.11 miles. Once you get to Malcolm Road Southeast, it's paved without any cars (no double yellow lines), which made for good climbing. Then the final ascent on Tunnel Hill Road is dirt. Towards the end it gets a little bit steep, but not as steep as the section on Sulphur Spring Road. If I were going towards Pittsburgh, I would have ridden this way down instead of taking the official detour. It would have been more pleasant and faster.
I can also confirm Rivnut's post that the shuttle was not available on Tuesday during business hours. I guess they discontinued it. Luckily, it was dry, so I was able to ride down without any problems although it was unpleasant since I had to ride the brakes down all the way.