I am suspecting this may be a Southern Black Racer. https://en.wikipedia.org/wiki/Southern_black_racer
http://srelherp.uga.edu/snakes/colcon.htm
or perhaps an Eastern Black Rat Snake http://srelherp.uga.edu/snakes/elaobs.htm
I will leave the ID to the experts. I figured I could give you a place to start.
Hope this helps!
http://srelherp.uga.edu/snakes/index.htm
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