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Posted by Eric http://www.slcc.edu/tech/techsp/arch/courses/ARCH1210/Photos/frost.jpg --Previous Message--
on 8/22/2005, 12:05 pm, in reply to "Re: Frost depth"
12.21.155.18
I was looking myself for a frost line depth map, and through a long and difficult search, I found the following:
: : Does a national map exist to indicate frost
: depths by regions across the US?
:
: --Previous Message--
: My research indicates the frost depth to be
: about 30". We generally try to go down
: at least 48" to stay clear of frost. An
: extremely cold winter could go deeper.
:
: --Previous Message--
: Would you know how deep is the frost line in
: Morthampton County, PA? It's zone 6.
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