I was at the Great Falls in Paterson, NJ, one of my favorite spots to shoot. The Passaic River put about 4 feet of water into the streets in Little Falls, and the Great Falls were more turbulent than I have ever seen. The bridge is for seeing the falls from the top, and the old building is a very old power station converting hydro power to electricity.
It is nice to see water looking like water - what shutter speed did you use? ...and what ISO did you need to get it?
I think that, for many water shots, tilt can give DOF at high shutter speeds in deep, dark ravines.