At least once you get to Upper Black Eddy you can cross over to Milford, NJ. Maybe a mile or so south you can then pick up the D&R Feeder Canal Path. I don't that sustained nearly as much damage. One exception I do know about is at the north end of Lambertville. The viaduct over Alexauken Creek Was taken out. You can stay on the river side of the canal, but the path is rougher. I simply took roads and streets in L'Ville to get to the bridge in New Hope.