try using McKenzie green caddis and pmd patterns right now. green or pale yellow soft hackles,green caddis pupa,pheasant tails for subsurface. green stimulators, green elk hair caddis and comparadun pmd's for dries. if your fishing below the dam the fishing lows down in the summer months,so mornings and evenings are better. i personally would fish a McKenzie green elk hair caddis with a small yellow soft hackle on the dropper right now