I would cut them off and drive the piece that you cut into another area.
If you install them twice the depth apart it should be OK. That's what I
John KK9A / P40A
Subject:[TowerTalk] ground rod depth problem due to rocky soil -- solutions?
From:Mat Eshpeter <firstname.lastname@example.org>
Date:Mon, 12 Nov 2012 16:30:39 -0500
I am finally getting around to putting up my 60' AN Wireless tower on top of
rocky ridge in WV. I rented a Hilti demo hammer and got about 1/3 of my rods
to the ground at least 4' -- but the majority are only 2 or 3 feet deep
of the rocks/ledges. I don't think I have much of a choice other than to cut
the rods off and drive the remnants into the ground field and exothermically
weld my 20 gauge copper strap to all of these shallow rods.
Other than paying big money for a well drilling rig to drill some deep 6"
and filling them with bentonite (which may not be possible given the slope
the land and the fact that I now have 8 trenches running 75' out from the
pad) do I have any other practical alternatives?
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