A good rule of thumb for safety at the Devola dam for the locals is the rock pile on the east side just out from the lock wall. If it is under water, don't take a boat up by the dam. With that much water coming over the dam and the river that high, you get alot more of the hydraulic effect that creates the suction action up by the dam. The rock pile is back under water tonight when I was down there. They are either letting some more water out of the lakes or they got more rain up river then we did here, but it is running pretty hard again. At normal summer pool, there is a good 2-3 feet of rocks sticking out of the water. That all came from a dredging effort by the state many, many years ago. They piled that stuff up going to barge it out and the river came up and spread most of it out again. They never bothered with it after that.