old, I looked up the specs on the dam/spillway. The max output of the gates is 18,000. I suppose the 23,000 i saw was counting what's coming over the spillway added on to it. The max gate and spillway output at an ungodly 414 lake elevation is 227,000. I don't know how they can figure the lake would get that high, with the spilllway in operation. Anyhow, it sounds like they are at full output at the gates, plus what's coming over the spillway. Here is where I got the info. http://www.mvs.usace.army.mil/wappapello/wap-facts.htm