Rivnuts from Homestead, PA on 4/16/2024 6:30:59 PM:
KE from Oakland:
There aren't any roads carrying motorized traffic on the C&O unless you get off of it such as to ride over to the Antietam Battlefield. Even the WMRT and the Capital Crescent Trail near DC, which are indeed paved, carry no motorized vehicle traffic. Similarly, there are only a few, lightly-travelled blocks outside Pittsburgh where a cyclist can encounter cars. The GAP and C&O is a very safe long distance trail.
I have taken Rt 690 north out of Purcellville and continuing on Rts, 711, 716, 719, 751, 9, 671 and 340 to Harpers Ferry on a return ride from DC to Pittsburgh via the WOD out of DC in 2019. As I recall Rt 340 was clearly the most heavily travelled and a little anxious but wasn't a long distance. The rest were 2-lane state/county roads with not a lot of traffic but some twists and turns. I have not ridden from Brunswick to Purcellville.
If only, Whites Ferry were still in operation as junping off the C&O and catching the WOD in Leesburg was very easy and straight forward albeit with a modicum of traffic on Bus Rt 15.
Not sure I answered your question. If not or have others, feel free to drop another note on this forum. Since September is my favorite time to make the full trip, perhaps we'll cross paths on the trail and, of course, beware of the walnuts!