I went out last weekend at Selfridge and the ice was about 2-4 inches. It varied depending on how far I went out. I would imagine that Cotton Road is the same, but the ice thickness seems to vary a lot on Lake St. Clair depending on where you go out. In the past I never had to go out too far to catch fish. Be careful of windy days since they can cause ice drifts. Some people were using 4 wheelers and snowmobiles, but that seems to be pushing your luck to me. Be careful at cotton Road. The police were giving tickets for illegal parkers. I was looking for a legal place to park and I couldn't find one on Saturday. Where are you going to park? Maybe you found a place that I don't now about.