biked here two days ago,after making my delivery run in new brunswick.
^ That's crazy (re: old gents on old school road bikes). I rode from Rutgers to South BB bridge on my cross bike and it was pretty jarring from all the bulldozer tracks left behind.
BTW, I noticed there's a number of sections with large gray stones. Was it always like that or it that to repair rain damage? I normally ride through with my MTB so I probably wouldn't notice it if it's always been that way.
i think you mean by gray stone is actually called: spillway or overflow chanel
it's to prevent flooding in the canal so the over flow water can go to the next river.
it was built during canal construction (thanks to irish immigrants who built the canal without modern tools/machinery)