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Old 02-01-2005, 10:37 AM   #1
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Default Minimum Ice Requirements for activities

I know this was stated somewhere but my searching has proven fruitless. Can anyone direct me as to where I can find the minimum required thickness for winter activities. I am a little concerned with being out in the broads with only 7-9" of ice and four snowmobiles. I suppose as long as we don't stop all together, we should be ok, but, I'm not comfortable with this. We were out there this weekend with 4 sleds abreast, but I truly thought there was a foot of ice. I am not into "Skimming" so any help would be appreciated.
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Old 02-01-2005, 11:28 AM   #2
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Old 02-01-2005, 11:41 AM   #3
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Arrow Ice Thickness and Strength

From the US Army Corp of Engineers:

Loads on Ice Required Minimum Ice Thickness in inches - Description of Safe Moving Load

1 3/4" One person on skies
2" One person on foot or skates
3" One snowmobile
3" A group of people walking single file
7" A single passenger automobile
8" A 2-1/2 ton truck
9" A 3-1/2 ton truck
10" A 7 to 8 ton truck

More info on their web site, ice safety, links to Ice Load graphs and more - click here. Ice Thickness and Strength

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