Not heard of that cave, but have been across the bridge a couple of times.
My caving days were mostly in middle Tennessee, around Cookeville area. Johnson cave was the one I was talking about, takes about ten hours to go to the end and back out. Pretty nice, has a thirty foot rappel and then the tight squeeze for about 50 feet, there is a hole in the ceiling of the tight squeeze just big enough to stand up in and put a harness on, lay back down and wiggle to the edge of the second rappel, about 50 foot into a room so big we could not light up the ceiling, has a small waterfall in the back of it.