A few years ago on a dark back road I drove up on a large alligator snapping turtle. Someone had hit him. Cracked shell was the visible signs from the outside. He was full of spunk even in this condition. A friend of mine helped me get him flipped over on a tarp (right side up) and we lifted him down to the water and he went off the tarp on his own power. The poor thing had to be 80-100 years old. No clue of outcome but we tried to make sure he was off the road. Could it have survived the trauma?