I was in the area and curious, so I drove over to Rockdale to see the creek crossings this afternoon.
The first is ready to go if you have at least truck clearance. I drove through the deep water (on the right as you go toward Cloyses Lake) on purpose. The water was about three inches below the floorboard of my FJ. If anyone‘s interested, I got out midstream and took some pictures. It‘s trivial right now, especially if you stay left. The second crossing is narrower, but has about the same water depth.