I tried to fish there twice, both in the afternoon, my last time there was just before the rain storm hit Tawakoni. The pictures below were taken when rain just started to drop... It's very hard to fish this spillway because the river level just barely cover the overgrown shrubs and trees that covered the river bed for years. The deep dropoff river channel is only a few yards wide... I tried top water poppers, nadda. While I did not see any fish caught both afternoon that I was there, a local angler told me that he caught some nice white bass and catfish just before water spill over the spillway. I tried to sling my bottom catfish rigs to river channel for some catfish but didn't get to fish much between snagging, lost a couple of rigs, then the storm hit, barely had time to get to my suv... caught nadda.
Spillway side water is deep but it's completely fenced off.