RedactedNarrative: On 06/30/14 at approximately 12:30 AM Operator 1 (O1) was operating Vessel 1 (V1) on Lewis and Clark Lake in Yankton County, SD. Six other occupants (P1, P2, P3, P4, P5, P6) were also on board V1. O1 was standing behind the steering column of V1. P1, P2, P3, P4, P5 and P6 were seated on the main deck of the V1 next to and behind O1. No-one onboard V1 was wearing a PFD. P1 and P2 were the registered owners of V1. O1 operated V1 without navigation lights. 
  
  O1 operated V1 northwest, in the general direction of Lewis and Clark Marina, from Gavin’s Point Dam on the east end of Lewis and Clark Lake. V1 remained on plane as O1 steered toward the marina entrance. O1 operated V1 past the marina entrance, buoys, and flashing markers, continuing to the northwest toward the earthen marina causeway. 
  
  As V1 traveled toward the causeway, P1 realized V1 was on course for collision. P1 yelled at O1 to turn V1. O1 attempted to turn V1 to the southwest (port side). Because of V1’s speed and close proximity to the causeway, O1 was unable to turn V1 enough to avoid collision. 
  
  V1’s hull made initial contact with submerged rocks along the toe of the causeway approximately 180 feet west of the causeway opening to the marina. V1 continued after initial contact with rocks and eventually came to rest when V1 slid completely onto the rocks at the toe of the causeway. V1 slid approximately 50 feet across the rocks after initial contact, evident by the marking and movement of large rocks. 
  
  Upon colliding with the causeway, O1 and passengers were thrown in a forward direction and remained on the main deck of V1. O1 sustained only minor injuries (cuts/bruises) from the collision. O1 and passengers climbed out of V1. 
  
  V1’s hull rested completely on the rocks and was no longer free floating when all momentum was lost. V1’s fiberglass hull sustained one large gash approximately 4 feet long on it’s starboard side. Several other smaller punctures and scrapes were present in the fiberglass on V1’s keel and hull. The punctures and gashes in V1’s hull allowed water to rush in and submerge the cabin area and engine compartment. 
  
  V1’s propeller blades were cupped and laid over opposite the direction they turn in forward gear indicating the propellers were engaged in forward thrust and under power at the time of the collision. 
  
  V1’s speedometer stuck at 37 miles per hour (mph) upon impacting the rocks. According to witness accounts the vessel was moving at a “high rate of speed” before impact. P1, the owner of V1, stated the V1 must be going between 22 mph and 25 mph to plane. V1 was planning at the time it impacted the rocks. 
  
  V1 was pulled off the rocks with a crane and towed to the Lewis and Clark Marina boat ramp. V1 was 75% filled with water as it was towed to the ramp. V1 was pulled up the concrete boat ramp with a tow truck and placed on a boat lift at Lewis and Clark Marina. V1 sustained only cosmetic damage from being towed up the concrete ramp. 
  
  O1 failed field sobriety tests and was arrested with a BAC of 0.223. O1 was charged with Boating Under the Influence and Reckless Boat Operation. 
  
  The license number displayed on the hull of V1 was incorrect and came back to someone other than the registered owner of V1. V1 bared a valid 2014 validation decal with number coming back to the actual registered owner. P1, the owner of V1, was given a verbal warning for the license violation.