Anyone know of good set to make, more for rats an mink,with snow an ice conditions

Body grips in spillways catch a lot of sticks. The bank/dam edges are usually where the action is, and footholds on the top of the dam can be good.

A foothold in the spillway on top of dam in center world good? Or 2 footholds side by side?

Check both of the edges for travel ways, since it’s freezing the swift water will freeze last so use it. Pinch points with the traps out of the water and mud so they don’t freeze down that way. Old stove pipe just keep it dry and brush in around it making going through it the easy route.

Mink like the edges for protection from predators.

So the center spillway is not a good location on the dam? I have not much experience with beaver dams

I’ve caught most of my mink closer to the banks for the reasons previously mentioned. Pocket or blind sets above and below dams are deadly for mink, rats and coons.

Law Dog is right on. And beware of otters if they aren't legal where you trap.