I have had the same thing done to three of the pines in my yard. The
eye-bolt goes all the way thru the trunk, with nut and washer on the side
opposite from the eye. A tree climber actually drills a hold all the way
thru the trunk and then installs the eye-bolt.
The reason for the eye-bolts is because trees with "split trunks" tend to be
weak in the area where the separate trunks branch off. Tieing the trunks
together with eye-bolts and a cable minimizes the chance of one of the
trunks splitting off.
Also, I have numerous eye-screws in the pines. These just screw into the
trunk ..... they are fairly large and penetrate 3 or 4 inches. All the
tree-experts around here say that eye-screws and eye-bolts are the proper
way to go. Have never had any problem with them.
-----Original Message-----
From: owner-towertalk@contesting.com
[mailto:owner-towertalk@contesting.com]On Behalf Of Chris BONDE
Sent: Friday, December 14, 2001 4:25 PM
To: Mike D.
Cc: towertalk@contesting.com
Subject: RE: [TowerTalk] Trees
At 06:48 AM 2001-12-13 -0600, Mike D. wrote:
>I recently hired an arborist to trim some trees and add screw-eyes for
>antenna supports. I have a split (vee trunk) silver maple that had a
support
>cable installed between both trunks. They installed stainless lags
>(screw-eyes) in each trunk and used a metal cable to connect the two. Each
>arborist that came to estimate the work said this would not harm the tree
in
>any way.
Do these SS lags go completely through the truck with a large washer on the
other side of the eye, or, are they screwed into the truck?
Chris opr VE7HCB
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