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Old 11-15-2011, 08:05 AM   #1
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Frost Heaves: What are they?

I've searched here and don't see pictures or descriptions. Are they like the wash board effect or something different?

Thanks.
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Old 11-15-2011, 08:43 AM   #2
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i think thats where you see frost/ice pushing the dirt out of the ground when temps are cold enough and ground mosture is high
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Old 11-15-2011, 08:52 AM   #3
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Quote:
Originally Posted by puttin View Post
I've searched here and don't see pictures or descriptions. Are they like the wash board effect or something different?

Thanks.
Pictures for you
https://www.google.com/search?q=fros...GcugtweulonODQ
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Old 11-15-2011, 08:55 AM   #4
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We call them mother nature's speed bumps. They are the result of the freezing and thawing process, the moisture in the ground expands as it freezes and takes the path of least resistance. A small one is an annoyance, a good one will knock your fillings loose and can cause vehicle damage if hit at speed.
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Old 11-15-2011, 09:03 AM   #5
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This is a pretty good description What is Frost Heave?
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Old 11-15-2011, 11:41 AM   #6
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Refering to the "Nature's Speed bumps" comment. Not Frost heaves but pavement buckles.

I have seen, with my own electroincally aided eyes (remote operated camera) pavement buckles that happened suddenly and with enough size to flip a car and kill the driver. I'm not streatching anything here. Happened in, I think, Liviona MI (I know it was on I-275,, As i recall just south of M-14/I-96 Not sure if it's Livonia or not) Accident was handled by the Michigan State Police. I was one of the dispatchers on duty at the time.
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Old 11-15-2011, 12:02 PM   #7
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Wow! Some of those shots are pretty significant! I never knew that they could be so big...........

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Old 11-15-2011, 12:11 PM   #8
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On the ALCAN through Canada and Alaska they can launch a car like a ramp. The more damaging scenario is when the heave only raises on one side and its opposite your direction on travel, then instead of a ramp you hit the abrupt stop.

The Canadian road crews do a pretty good job of marking them with cones or flags until the weather permits a repair. Our Alaskan road crews not so much.

Keep you eyes open and watch the traffic in both directions for clues to an upcoming heave.
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Old 11-16-2011, 05:36 PM   #9
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I have seen a few frost heaves in Vermont on some of the mountain passes.

On the road from Fairbanks AK. to Valdez over a 300+ stretch about 7-8 years ago you could normally travel at 60 to 65mph. The heaves would be spaced about 100' to 500' apart mostly on the flat low elevation areas. In a car you would drop you speed to maybe no more that 55 to 60 range. But in a RV you might have to slow down a little more. No big deal....
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Old 11-16-2011, 07:19 PM   #10
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We have frost heaves in Maine so big that they have their own zip code. If you would like to experience them. Drive north in mid March and hang on...
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Old 11-16-2011, 08:40 PM   #11
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Frost heaves - pretty much describes the entire Illinois road system.
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Old 11-16-2011, 08:56 PM   #12
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Frost heaves - pretty much describes the entire Illinois road system.
You sure you didn't mean to say Oklahoma?
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Old 11-16-2011, 10:36 PM   #13
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jzick,

Thanks, I don't think Alaska's on the radar anymore.
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