I went to check it out and give it a few casts today, and yes, a few gates are open and rolling. As far as parking goes, you have to park on the outside gate and walk in.
I got a few hits, but none stuck. I saw a few people who caught a few kitties fishing the bottom with live bait casting towards the edge of the current near the middle of the dam. Other than that, I saw many lines get tangled and stuck and eventually ripped or torn, assumingly, in brush and rocks towards the middle.
There were some people fishing the lower end of the dam where the water starts to calm down a bit, but I have no clue as to how they were doing.
Hope this report helps.