RedactedNarrative: The operator of boat 1, Operator, was driving his boat down the Pamunkey River from Lestor Manor.  In the area of Chestnut Grove, he struck an unknown submerged object.  Operator turned and looked behind him to see what he had struck.  When he looked forward again, he was about 20 feet from a dock.  Operator's boat struck the floating dock.  The bow came out of the water onto the floating dock, ramping the floating dock.  The transom dropped down when the bow rose, allowing water to enter the boat from the stern.  The boat slid back into the water off the floating dock.  Operator exited the boat, onto the dock, as the boat capsized.