I only had time to check one area 50-100 yards from the ramp. checked from right off of shore to about 40ft out and it was the same, two hard wacks with the spud and it went through. I'd say about 2.5'' thick. Might be 3'' by tomorrow. I checked another body of water 15 min or so south of the dam, kinda a secret spot I don't wanna throw out there but it had the same around 2.5'' black ice