Unit one was traveling southeast through the CSX train trestle no wake zone on the Ashley river. 

When unit one left the wake zone, it accelerated quickly into a planning speed. The wake created when accelerating caused multiple large waves to travel towards the dock unit 2 was tied to. 

The wake caused unit 2 to move up and down, cause scrapes to the port stern and the port rub rail. The wake also moved unit 2 with force enough to pull out a decking board with a cleat that was attached to unit 2. Unit 1 did not report the incident and left the scene.
Ashley River