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RE: AP: Wash. State bridge collapses into Skagit River; sends vehicles, people into water

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Hassan -

Why would primer be exposed at some of the joints like that?

T. William (Bill) Allen, S.E. (CA #2607)
University of Southern California, M.S.C.E., 1983
University of Texas at El Paso, B.S.C.E., 1977

Consulting Structural Engineers
32302 Camino Capistrano, #206
San Juan Capistrano, CA 92675
V (949) 248-8588•F (949) 209-2509

-----Original Message-----
From: seaint-seaosc(--nospam--at) [mailto:seaint-seaosc(--nospam--at)] On 
Behalf Of Abolhassan Astaneh Sent: Thursday, May 23, 2013 9:26 PM
To: seaint-seaosc(--nospam--at)
Subject: Re: [SEAINT-SEAOSC] AP: Wash. State bridge collapses into Skagit 
River; sends vehicles, people into water

I am looking at the photo at this following  site and it does not look that 
 there is a lot of corrosion. The red colors are the primer paint and not 


Of course one photo does not say much and inside of the connection or even 
members might have some corrosion but does not look like that.

My Google Image search turned up following sites with a photo of I-5 Skagit 
 Bridge , Mt Vernon , Washington.  Seems to be photos of the collapsed 
bridge before collapse unless there are more than one truss bridge on I-5 
crossing Skagit River which is unlikely but not impossible. The bridge 
seems to be simply supported "through deck" riveted truss bridge.



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