In today's Conway Daily Sun:
Though all ice is potentially dangerous, the Cold Region Research Laboratory in Hanover offers a "rule of thumb" on ice thickness: There should be a minimum of 6 inches of hard ice for individual foot travel, and 8 to 10 inches of hard ice for snow machine or ATV (All Terrain Vehicle) travel. Keep in mind that it is possible for ice to be thick, but not strong, because of varying weather conditions. Weak ice is formed when warming trends break down ice, then the slushy surface re-freezes. Be especially careful of areas with current, such as inlets, outlets and spring holes, where the ice can be dangerously thin.
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