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Re: [TowerTalk] Above Ground Foundation

Subject: Re: [TowerTalk] Above Ground Foundation
From: Dennis W0JX <>
Date: Sat, 6 Jun 2009 09:06:04 -0700 (PDT)
List-post: <">>
Your tower foundation is sitting atop an unstable base. One and a half feet 
below ground is certainly not above the frost line so you have a "floating" 
foundation which may or may not move. If I have calculated it properly, you 
have 18.5 cu yards of concrete in your base. That is pretty darn heavy and it 
may well be stable enough. Depends on the windload you will have at the top. I 
recommend that you get some professional engineering calculations done on your 
By the way, concrete foundations are poured in water all the time. So you could 
have had a normal hole dug, pumped out the water, and filled the hole quickly 
with concrete.
73, Dennis W0JX/8


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