Structural Engineering: 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@rstavares.com]
Sent: Friday, August 24, 2007 1:47 PM
To: seaint@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@rstavares.com
www.rstavares.com

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