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RE: High Mast Light Pole Anchor Bolts

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Thanks for your repsonse.

I know the highway department typically does not grout below the baseplate.
 My challenge with this situation is the bolts are set and the heights
can't be adjusted to fit a nut underneath.  Since I don't now much about
the original steel, welding a bolt extension is probably not wise.  I
probably can get about 3/4" grout thickness out of the present situation. 
It puzzles me that if double nuts are a better design why it is not done. 
All of the lights I observed had grout below the baseplate.  Some grout
pads were up to 3" thick.


On Tue, 5 May 2009 06:59:22 -0700, "Garner, Robert"
<rgarner(--nospam--at)> wrote:
> Just passing on a note that the utility industry typically does not
> grout below baseplates.  There must, of course, be double nuts on the
> anchors and the protuding part of the anchors must be kept short enough
> to limit anchor bending, but ungrouted baseplates are common.
> Bob Garner, S.E.
> ________________________________
> From: Jim Getaz [mailto:jgetaz(--nospam--at)] 
> Sent: Tuesday, May 05, 2009 4:57 AM
> To: seaint(--nospam--at)
> Subject: Re: High Mast Light Pole Anchor Bolts
>         Rich,
>                 I like Daryl's analysis and comments. I'd add that it is
> very easy for grout to be placed poorly under a baseplate. I do not know
> how one would pressure grout in a way that ensures that the entire area
> of the baseplate is filled, especially with such a thin space. I would
> not regrout with the pole in its current position.
>         HTH,
>         Jim

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