On 09/04/2011 on Lake Sammamish a 21' open motorboat (Vessel #1) was traveling generally southeast from the north end of the lake on full-plane.  Vessel #2, a 20' open motorboat, was travelling generally west from the east side of the lake on a sub-plane (a speed slower than being on-plane).  At approximately 2105 hours Vessel 1 struck the starboard side of Vessel 2 at an angle with its starboard bow.  

All persons were tossed within their respective boat from the collision.  A passenger in Vessel 1 suffered minor abrasions to her foot and a sore back.  Aid treated her at the scene.  

The operator of Vessel #1 stated he did not see Vessel #2 or any lights on Vessel #2, and believed he drove over Vessel #2's stern.  All persons in Vessel #2 stated that no one saw Vessel #1 until after the collision and that their boat had its navigation lights on.  The witness stated that he saw both vessels out on the lake and that he saw the lights of both boats.  He also stated that it looked like the boats were headed directly at each other with Vessel #1 traveling at a higher rate of speed.   All persons involved said the collision occurred on the east side of mid-lake in the city of Sammamish waters.

Sammamish                     