BOAT#1 & HOUSEBOAT#2 WERE TRAVELING UPSTREAM (NORTH). BOAT#1 WAS TRAVELING APPROX 30 MPH & OVERTAKING HOUSE BOAT# 2 ON THE LEFT (PORTSIDE OF HOUSE BOAT) WHEN BOAT#1 GOT ABOUT 20 FEET PAST BOAT#2, BOAT#1 OPERATOR MADE A SHARP RIGHT TURN CUTTING IN FRONT OF BOAT#2. WHILE DURING THE TURN, BOAT#1 OPERATOR FELL DOWN--LOOSING CONTROL OF BOAT#1. BOAT#1 CONTINUED IN THE SHARP TURN TO THE RIGHT & STRUCK HOUSEBOAT#2 STARBOARD SIDE WITH BOAT#1 BOW.  COLLISION CAUSED DAMAGE TO BOTH BOATS. BOAT#1 OPERATOR WAS ARRESTED FOR BUI.
LACROSSE                      