They found a sinkhole under dam, lowered lake level, grouted hole for several years, then left lake low like it is now. It breached emergency spillway in May 2017.
That funky color is the new norm, same as the Back River below. I assume it is from the low lake levels and boats stirring up silt.
Looks like she caught the same dink I did a few weeks ago, the only fish of the day. It was hot and we were out for a boat ride. Camped below the dam and had a good time. But the fishing is poor there now.