Iowa Great Lakes Among Top Five in State for Boating While Intoxicated in 2020 By charguth July 20, 2021 3:31 pm clipart.com Des Moines, IA (KICD)– The Iowa Great Lakes are showing up on a Top 5 list that many probably don’t want to be on according to the Iowa Department of Natural Resources. The list shows the bodies of water with most boating while intoxicated arrests last year with the lakes in Dickinson County coming in number four behind Lake Rathbun, the Mississippi River and Coralville Reservoir. The top five is rounded out by Saylorville Lake in the Des Moines metro. 2020 saw twenty-five boating while intoxicated arrests in Iowa with five out of eight water fatalities and 11 of 38 accidents involving alcohol.