|
3 inches
|
Single person on foot
|
|
4 inches
|
Group in single file
|
|
7-1/2 inches
|
Passenger car (2-ton gross)
|
|
8 inches
|
Light truck (2-1/2-ton gross)
|
|
10 inches
|
Medium truck (3-1/2-ton gross)
|
|
12 inches
|
Heavy truck (8-ton gross)
|
|
15 inches
|
10 tons
|
|
20 inches
|
25 tons
|
|
30 inches
|
70 tons
|
|
36 inches
|
110 tons
|
|
*
Solid clear blue/black and lake ice.
|
|
Slush ice has only half the strength of blue ice.
|
|
Strength value of river ice is 15 percent less.
|
