Ice chart , questionable
Safe loads for clear solid ice are indicated below:
Thickness of Ice Load or Activity in cm < 1 3/4 < 4.5 STAY OFF 1 3/4 4.5 One person cross county skiing 2 5 One person on foot or skates 4 7.5 Snowmobile or smaller ATV, groups of people walking in a single line 7 17.5 A small car 8 20 A 2 1/2 tons truck 9 22.5 A 3 1/2 tons truck 10 25 A 7 - 8 tons truck Note that ice strength is influenced by many factors age - newer black ice is stronger than old milky distance to shore - ice close to shore is weaker than ice farther out river outlets and inlets - ice close to outlets and inlets is weaker obstructions like rocks, trees and plants water currents cover of snow This information must only be used as a general guide - KEEP OFF the ice if you are not absolutely sure. |
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