Both the thickness and the nature of ice are
An ice layer usually becomes thinner over cur-
important in determining its carrying capacity.
rent, near banks of streams or lakes, over warm
Because part of the supporting power of ice
springs, and over swampy ground. Rotten ice that
is derived from the water below it, a layer of ice
can be identified by its dull color and honeycomb
that is in contact with the water surface is safer
texture has little supporting power.
than one that has no contact with the water
surface.
WORK SAFELY—STRESS SAFETY
14-47
