We live on a river and I am always amazed that people will drive up it at speed in cruisers, bow riders and jet ski's. We have lost over a foot of shore since I put in my dock not quite 4 years ago. I have had two trees fall in the water and 3 more that I am going to have to cut down this spring or they will fall on the dock and lift. Errosion and millfiol have always been my #1 concern. This year I am going to have to line my waterfront with rocks to try and help prevent it from getting any worse