ICE THICKNESS – SAFETY
Safe Loads for Clear Solid Ice

Thickness of Ice                    Load or Activity
  3 inches . . . . . . . . . . . . .  Cross Country Skiers
  4 inches . . . . . . . . . . . . .  1 person ice fishing
  5 inches . . . . . . . . . . . . .  1 snowmachine
  6 inches . . . . . . . . . . . . .  1 ice boat
  7 inches . . . . . . . . . . . . .  Group activities
  8 inches . . . . . . . . . . . . .  1 car or truck
  9 inches . . . . . . . . . . . . .  Several vehicles

Ice thickness may vary within a small area

·        New (black) ice is stronger than old (milky) ice
·        Ice closer to shore is weaker than ice farther out
·        Obstructions i.e., rocks, logs, and plants, weaken ice
·        Underground springs weaken ice
·        Waterfowl and schools of fish prevent ice formation
·        Water currents weaken ice
·        Ice covered by snow and/or water weakens the ice.

           Survival equipment for each person
            ·        Ice awls
            ·        Life jacket
            ·        25 feet of rope
            ·        Whistle

Because ice strength is influenced by so many factors, this information should be used only as a general guide. If not sure – stay off the ice.