[TowerTalk] Base equivalent

[john at kk9a.com]

Would a hole 8 x 8 x 3 (5.3 yards) be a safe equivalent? I doubt that
anyone on towertalk could answer your question without studying the soil
conditions and the unmentioned tower that goes on it. It is probably less
expensive to find a backhoe that can dig a little deeper or perhaps you
can shore up the hole to safely dig by hand.

John KK9A


To:	 towertalk reflector <towertalk at contesting.com>
Subject:	 [TowerTalk] Base equivalent
From:	 Mike Reublin NF4L <nf4l at comcast.net>
Date:	 Fri, 10 Jan 2014 16:28:11 -0500
List-post:	 <towertalk at contesting.com">mailto:towertalk at contesting.com>
The specs for my crank up call for a hole 4x4x7.5 feet. That works out to 4.4
yds of concrete. The smaller backhoes that I can get to the site can go to a
depth of 6 feet. Because of the water table, I consider it an unacceptable
risk
to put a man in the hole to dig out to 7.5 feet deep.

A hole 5x5x6 is 5.5 yds.

Would that be a safe equivalent to hold the tower up with the same wind load?