Okay guys.........truly new to the board and almost as new to Missouri! Moved here for the lake (truman) and I'm an addicted catfisherman. Won't tell you how big my largest Flatty was.... but I'll give ya a hint. Caught behind a wing dam on the Missouri just South of Sioux City Iowa using a 1# live carp as bait. Now for my questions to all you local catfishermen. Spillway at Truman obviously has a channel or drop off in it all the way down to the no boating buoy's. I checked the flow rates at various locations on the West Bledsoe side and was really impressed with the flow (starting somewhere down around six feet or so) when the gates are raised any. It's not much given a rise in level of only 6 to 7" over a 30 minute time period. So there is a channel there. Now comes the load(s) of questions. 1).. Somewhere, someone HAS to have an original diagram; design, or engineering drawings of the composition; layout; and depths of this section of the spillway. I've already pestered the Corp of Engineers in Kansas City about this to no avail. Who knows, maybe they think I'm some goober trying to tear the place up. 2). Does anyone know if the spillway is a poured concrete structure (know it's at least down to the first buoy's. But what's beyond that apron? Rock? Limestone basil rock or sheeting? And the depth? 3) The width of the channel? AAARRRGGGHHH!!!!!!! any and help here would be tremendously appreciate. Heck I'll even take out the most helpful in the boat and we can go driftin!@!!!!!!