Minimum ice thickness for snowmobiles on frozen lakes?

Ice Thickness Guidelines

When checking ice thickness, use a minimum thickness of 4-6 inches for a single snowmobile or ATV, and 8-12 inches for two or more vehicles or for crossing areas with moving water. To gauge ice thickness, use an ice auger or a screwdriver to poke a hole in the ice, then measure the thickness of the remaining ice with a ruler. This will give you a more accurate reading than simply probing the surface with a stick.

Precautions for Traveling on Thin Ice

Even with a minimum ice thickness of 4-6 inches, travel on frozen lakes is always a risk. Take extra precautions to stay safe, such as knowing the ice conditions beforehand, checking the weather forecast, and avoiding travel during periods of rising water temperatures. When traveling on thin ice, ride slowly and carefully, avoiding sudden turns or sharp braking, which can increase the likelihood of ice failure.

Additional Safety Considerations

In addition to checking ice thickness, consider other factors that may affect the stability of the ice, such as the type of water beneath (e.g., lakes with a lot of aquatic vegetation or those with shallow or moving water are more prone to ice failure). Keep an eye out for signs of weakening ice, such as cracks, dark spots, or areas where the ice appears to be sagging or bending. If in doubt about the safety of the ice, err on the side of caution and avoid traveling on it altogether.