We put a boat in, two years ago. A 14 footer, I think. The ramp is unimproved, and not easy. But we got in, and out. If, however, you are inexperienced...you might want to look it over first.
Most of the lake is very shallow. There's some fairly deep water, where Oak Grove flows in, and in front of the campground area. Maybe 80' deep, close to the dam, at max.