I was fishing the Caney this past Sunday, 10/22/17, and like you, I saw almost no trout, especially near the dam. The past few months have been very strange, with very few fish anywhere.
Anyway, I walked a bit further down, close to the "stairs" and I saw quite a few jumpers. I was able to catch about 5 - 7 smallish trout, all on red size 20 midges.
I've been blogging about my Caney fishing experiences, if that interests you at all:
http://www.runnerofthewoodsmusic.com/fish-blog/