[TowerTalk] Looking for some foundation advice

[n6sj at earthlink.net]

Don,

A structural engineer can design you a foundation that will work.  If
Remegio Fernandez were still at UST, he could take care of it, but he moved
back to Venzuela.  

In general, if a tower foundation cannot be excavated due to shallow water
or a granite dome, the alternative is a "mat" foundation, which creates the
same overturning resistance but across a much wider area.  I would look into
that alternative before moving to the other side of a road!

73,
Steve
N6SJ


-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Don Solberg
Sent: Wednesday, May 27, 2020 3:45 PM
To: towertalk at contesting.com
Subject: [TowerTalk] Looking for some foundation advice

I was planning on purchasing a used US Tower HDX-572, 72 ft crank up tower.
It looks like I may have run into a problem with the foundation.  I had some
trenching done today for a new well and discovered that the ground water
level is just slightly lower than 6ft.  US Tower specifications call from a
7.5 foot deep hole. My soil is mostly sand, so in addition to not being able
to go down 7.5 ft, I probably also want to make the foundation wider.

Is it practical to put up the 72ft tower with a wider pad, or should I look
at getting a smaller 55ft tower?  Another alternative is find another
location for the tower.  I have about a 10 ft hill on another property that
I own across a gravel road.  This would most likely eliminate the ground
water problem but I would have about a 300 ft cable run and I would have to
trench across the town's gravel road.

I am looking for recommendations.

73,

Don K9AQ
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