Andrew from Pittsburgh on 07/16/2022 05:56 PM
Sorry for the delay in reporting back on my experience dealing with the Paw Paw Tunnel detour. To recap, we were traveling from Pittsburgh to DC, self-supported, myself and my 16 year old child. We were riding the trail for the 5th summer in a row, so are now experienced at this. Every year it seemed they were threatening a tunnel detour, but this is the first year that it actually happened. We were on this section on Monday June 20th around 1:30PM.
I did not want to push my bike up, because it is heavy, I expected it to be hot, and, well, because a bike is meant to be ridden and not pushed. So I looked for alternatives. Heading downriver, if you exit the trail about 1 mile before Route 51, at the cross-over where the truck that services the port-a-potty enters (I know because that truck entered the trail right before we got there), you can get to Sulphur Springs Rd. We rode that up to Route 51, went east on Route 51 for a couple of hundred yards, the turned left on Malcolm Rd. We rode up Malcolm Rd. to Tunnel Hill Rd. Tunnel Hill Rd. is a gravel road up to the top of the mountain above the tunnel. We then rode down the detour on the downstream side, which is doable because they widened the trail, I presume for construction equipment. This route shows up faintly on Strava, and I saw one recreational rider going down while we were heading up and then was just behind us when we reached the top.
This is a viable alternative, although the road is quite steep at times. I managed to ride the whole way, while my 16 year old walked a bit 3 different times. Once right after leaving the trail, once approaching Route 51, and a last time on a section of Tunnel Hill Rd. It took us 35 minutes total, starting at Route 51 to backtrack the mile back to the crossover since we had lunch in Paw Paw, to get to the top of the detour, and then about 5 minutes to ride down. We both have 2" wide 650B tires, as that might affect one's willingness to ride down the detour.
I would also not hesitate to leave the detour at the top if headed upstream and ride down the opposite direction of what I described. The section on Route 51 is pretty short, and it is basically all downhill so no walking would be required. Just make sure to turn right when you leave the detour. I did not travel that section, though, so I can't comment on how rough it would be riding down that side.