I call them jetties, or l-shaped wing dykes; they are L-shaped with the cut in the upriver side of them. I have been having fairly good success fishing in about 8-10 feet of water around the scour hole that the current coming over that cut is creating. Catching mostly flatties right now in them. Most of the depths of the scour holes i'm seeing are around 20 feet, pulling some good 15-30 pound fish out by fishing the edges of the hole at night. Just wanted to see if anyone else fished these type of dykes, and if so, how was it working. The current river level has me running the boat in some pretty shallow water, to come up into them. But I'm gonna keep crawling in there as long as I can, or until they quit biting.