RedactedNarrative: Saturday August 11, 2018 at approximately 1145 hours Vessel One while attempting to dock at Deer Creek State Park Main Dock was traveling between 1-10 mph.  a passenger on the boat had jumped onto the dock to catch Vessel One. With his feet on the dock and his hands on the vessel, his right foot slipped. The vessel's bow pinched his leg between the boat and the dock, causing severe pain and he suffered a broken leg.  he lay on the dock until EMS personnel arrived. he would refuse EMS transport, and would be self-transported to an emergency room in Utah County.