Here are some facts related to ice safety from the Minnesota DNR.
- New ice is usually stronger than old ice.
- Four inches of clear, newly-formed ice may support one person on foot, while a foot or more of old, partially-thawed ice may not.
- Ice seldom freezes uniformly.
- It may be a foot thick in one location and only an inch or two just a few feet away.
- Booming and cracking ice isn’t necessarily dangerous.
- It only means that the ice is expanding and contracting as the temperature changes.