 There are still more than 1,100 dams in Minnesota. The DNR expects more communities with aging dams to consider whether replacing them with rapids makes sense and could help avoid a disaster. Kirstie Marone, NPR News, Pine River. We have a water theme going on in this segment. We're going to continue by talking about circumnavigating one of the world's largest freshwater lakes in a kayak. Lake Superior, as you all know, is beautiful.