RedactedNarrative: On 5/23/2015 Officer was contacted regarding a boating incident on the Mississippi River at Lock & Dam 16 spillway.V1 was boating all day and going to several different fishing spots. They had stopped along the river to grab food and then continued to fish in several other locations. The driver stated he got confused and thought he was heading toward the area where they had launched and had only locked through the Dam system once. V1 launched over the spillway throwing all 4 passengers into the water.  Driver threw a life jacket to 1 passenger & also placed on a jacket himself.  Operator was charged with BWI.