I need some advice with my dry creek bed. I live at the bottom end of a fairly large neighborhood and my back yard serves as the natural drainage for the entire neighborhood. From my property the water drains under a road in a culvert to a neighborhood commons area flood plain, then to the lake. Most people in the neighborhood have a nice little dry creek bed that flows slightly, however by the time the water reaches my yard it is a raging river. My dry creek bed continues to erode after every hard rain. It has little vegetation in it. I have tried to place small to medium size rocks in it to give it that natural look, but everything gets washed away. Now I am not so concerned with the look as much as I am the erosion. It is pretty much a straight creek bed (only one curve on the end) that is about 40 yards long. It is about 2-3 feet wide and about 2 feet deep, but getting deeper and wider every year. Any suggestions?