I tried below the dam once it was an interesting experience. As fast as the ice forms it disappears since it was gone 2 days later after only warming a few days. Briggs is another one but that’s farther away. Living North of Sartell as well it’s like no man’s land for lakes.
I’ve also ice fished the river near the lions park access up toward mississippi river park. You can have catfish keep you entertained, some crappies and walleyes. I actually caught a real fat 29 inch walleye there several years ago and thought I hooked a musky. Thing fought like hell spending so much time in current. Quite the battle.