RedactedNarrative: On 7/26/2014 at approximately 5 pm, V1 was traveling north on the Mississippi river and going under the Hwy 20 bridge when she met a large white boat raveling at a high rate of speed & creating a very large wake traveling east.  V2 turned sharply to the right creating a large wake directly in front of her.  V1 was traveling about 25 mph and maintained her speed as she went over 3 large waves.  V1 managed to go over the first 2 waves but the 3rd larges wave sent her airborne & when she landed, the impact caused her to hit the seat extremely hard causing severe pain in her back. Medical personnel determined that the Operator of V1 suffered  a broken T4,T5, & L4 vertebrae in her back.  V1 failed to report the incident until 4 days later so V2 was never located.