Sneaux next week [Historic snowstorm in southeast Louisiana on January 21, 2025]

I wonder how cool the lake is right now. I would have thought it might have been warm enough and the bridge low enough to keep that from happening. Or maybe it's the warmth of the lake that's causing it in combination with the cold wind.
It was at 46 degrees...

Thing is about bridges and overpasses, cold affects both the underside and the surface, that's why they always freeze first and thaw last..