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RE: Guano and Bridge Failure

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'Scuse me, that would be more like 60 psf (I'm currently designing
something for a 2' snow and that influenced me).

-----Original Message-----
From: Garner, Robert [mailto:rgarner(--nospam--at)moffattnichol.com]
Sent: Friday, August 24, 2007 2:43 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: Guano and Bridge Failure

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Your following message has been delivered to the list
  seaint(--nospam--at)seaint.org at 14:43:17 on 24 Aug 2007.
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If that guano was 100% saturated, that could add over 100 psf load.
Wow!  Something to think about.

Bob

-----Original Message-----
From: Chance, Acie [mailto:AChance(--nospam--at)lacsd.org]

Sent: Friday, August 24, 2007 2:32 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: Guano and Bridge Failure

     Years ago I worked for a company who designed and built canopies
for gas stations.  There was a failure of a single column canopy as the
pigeons liked one side of the canopy more then the other.  The side they
liked had more then a foot of pigeon guano built up on the roof deck.
If memory serves me correctly the column bent over to the point it had
to be replaced.


Acie Chance


-----Original Message-----
From: Mark Deardorff [mailto:mark(--nospam--at)rstavares.com]
Sent: Friday, August 24, 2007 1:47 PM
To: seaint(--nospam--at)seaint.org
Subject: Guano and Bridge Failure


Here you go. I saw this and thought it was interesting.

http://www.foxnews.com/story/0,2933,294153,00.html

Mark E. Deardorff, SE

R & S Tavares Associates, Inc
9815 Carroll Canyon Road
Suite 206
San Diego, CA 92131
Phone: 858-444-3344
Phone: 209-863-8928
mark(--nospam--at)rstavares.com
www.rstavares.com



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