RedactedNarrative: Vessel travelling downriver with two aboard.  Operator stated he was traveling fast but didn’t know how fast.  The PWC was headed toward a concrete pylon for STH 441, which was located in the middle of the river.  Operator stated he throttled the PWC down and was unable to steer away from the pylon.  Operator and Passenger bailed off the PWC prior to the PWC colliding with the pylon.  The PWC collided with the pylon, causing significant damage to the nose of the PWC and rendering the engine inoperable.  Neither the Operator or Passenger were injured.  The pylon sustained no damage.