I biked from Pittsburgh to DC (GAP and C&O trails combined) 9/8 thru 9/14/24. This review is for the C&O only. Weather – excellent. Scenery- beautiful. Accommodations – very good. Trail surfaces –highly variable from narrow dirt paths laced with muddy holes to relatively smooth, hardpacked dirt to loose gravel (better for a pickup truck than a bicycle!). From 10 miles south of Great Falls into DC the trail/road was especially rough. I was riding an Off-road bike with 40 MM wide tires and momentarily lost front tire stability in MANY spots due to loose gravel (especially on the sloped paths leading into & out of lock areas). My biggest safety concern were the numerous concrete bridges over creeks & culverts that had ZERO guard rails, warning signs or even yellow paint. The bridge widths were narrower than the trail requiring the biker to NOTICE and move more to the center for safety. If a biker went off the side of any of these bridges, I’d expect serious injuries or worse. The worst safety hazard was at Lock 38. Approaching the lock from the southwest side, the (main) trail leads right across the top of the lock wall- that is 3 to 4 ft wide with only an outer rail – very dangerous. The drop off to the grassy floor below was about 7-9 feet straight down. I was in a group of riders that suddenly saw this “tightrope” situation and jammed on their brakes. (Nobody realized we should have diverted onto a narrow, unmarked path that led downward through the lock.) Fortunately, everyone stopped safely; walked their bikes down a slope and on to the safe path through the bottom of the lock. A simple, cheap sign could prevent the near-miss accidents at this spot.
I’m really disappointed that this National Park hasn’t (at least) marked these safety hazards. Considering all the hazards and the rough gravel, I think this C&O Towpath trail merits 2 stars.
