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Re: [TowerTalk] can I incorporate an existing tower base?

Subject: Re: [TowerTalk] can I incorporate an existing tower base?
From: jim Jarvis <>
Date: Wed, 16 Apr 2008 13:21:21 -0400
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Cc: Mike <>
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> I have an existing stand alone base for my US Tower MA-40.  I would  
> like to
> incorporate my existing 3 x 3 x 4 foot base.  The tower I would  
> like to put
> up is the US Tower TX-455 which requires a 5 x 5 x 6 base and 6  
> cubic feet
> of concrete.
> So, the question is could I incorporate the existing base by  
> digging around
> it maybe an extra two feet and go deeper to add the necessary mass of
> concrete to get to the required 6 cubic feet needed and adding more  
> re-bar.
> It is not so much about saving money, because I would have to drill  
> holes
> for the different footprint and epoxy in new bolts.  But it would save
> having another base and having a redundant concrete slap to look at or
> remove.
> I just wonder if Steve or anyone has done this before.

I was involved with a 4 tower directional AM station whose array was  
built on a river-bottom
pasture.   We had a hurricane fueled flood, which sent 8' of water  
roaring down the flood plane,
and eroded all four tower bases.   They were undercut, tilted and  
twisted, with 190' Rohn 65 above
them.    Dicey situation.

The fix was to pull each base back into plumb,   cut notches around  
the foundation at 3 points, and
fasten an extended rebar cage around the bases.   The extended cage  
then had an added foundation
poured around it, to stablize the structure.

So you could do it.   but you'd be awfully busy with a jackhammer!


Jim Jarvis, MBA
President-Executive Coach
The Morse Group, LLC
732 548 5573 office
908 410 9130 cell

Achieving Results in a Changing World   


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