Bill in Houston from Houston on 7/27/2021 2:01:57 PM:
Rivnuts is correct as always, and I do apologize for being non-responsive, and not suggesting a section of C&O.
But what I really meant is, even if you are staying in Washington, D.C., I'd suggest driving to Meyersdale or Ohiopyle and riding a piece of the GAP rather than riding any part of the C&O. And most especially if it has rained any time in the past three days.