Vessel #1 was traveling downstream from Clifton, approximately half way between River mile155 and 156.  Vessels #2 and #3 were beached on the west side of the river.  When vessel #1''s wake reached the beached vessels, it picked up Vessel #2 and caused it to strike Vessel #3.  It damaged both side panels on the Manitou and the starboard side pontoon and possibly cracked the fiberglass on Vessel #3.  Vessel #1 was approximately 100-150 yards from the beach in the river channel.  Vessel #1 was traveling at a high rate of speed.  Vessel #1 was on its way to Chicago, Illinois.
CLIFTON