Rivnuts from Homestead, PA on 7/1/2022 4:23:55 PM:
Chas:
It is generally a good option with 32mm tires although wider might be somewhat better, especially on the C&O. A single-wheel trailer would perhaps be better suited than a two-wheeled trailer since there is some single track at the northern end of the C&O. However, you could likely get through those sections with a two-wheeled trailer with some focus and patience. You may encounter a few downed trees as well if a storm has passed through recently that could require you uncouple your trailer from the bike to over or around them.
As you are aware the biggest obstacle for bikes and especially those towing a trailer is the Paw Paw Tunnel bypass detour up and over the tunnel. It would be an arduous task getting a loaded bike with trailer to traverse that detour and you certainly couldn't ride it but I'll stop short of saying you absolutely couldn't push up and over.
A recent transam rider towing a BOB trailer plotted his own rode detour option around the tunnel from 15-Mile Creek to north of Paw Paw. Below is his description of his alternate route.
"The ride started with about a mile on the flat and then we started climbing. None of the hills were particularly long but, several had some serious steep parts. The first one had a 16% grade section. Another one later had a 17% section. These are really steep. Stupid steep. Roughly half of the detour was on dirt roads. The last part was on highway. Not particularly busy but, the speed limit was 50. If the speed limit was 50 and you were driving in the middle of nowhere how fast would you drive? Also, at one point we are climbing up a long sweeping curve to the right, which makes it blind all the way. With the trailer I can’t up my effort and get it over with. I just plod along as best I can and it turned out alright for everyone."
In short, his alternate and likely any others was not very good.
There are shuttles available. The closest and likely with the least cost is offered by Dan who runs the Bikepath Bed and Bath (B&B) in Paw Paw, WV. You can reach him to arrange a shuttle at 304-671-5153.
You'll find other shuttle operators in Cumberland, Shepherdstown, et.al.
Are you planning to connect to the GAP from the Montour Trail, from downtown Pittsburgh or another route.