Bridge Collapse – Something doesn’t add up

This post was written by marc on August 2, 2007
Posted Under: Technology

I am confused about the bridge collapse in Minnesota because it just doesn’t make sense to me that the whole thing just fell down instead of just one section. For the whole thing to just fall down like that makes the thing that the whole thing was rotten or rusted out or something. Logically if there were a single failure then just a section of the bridge would have fallen. For it all to go down just doesn’t make sense to me.

Reader Comments

Not that I think it makes perfect sense, but I think it somewhat reasonable, or at least conceivable that the bridge’s sections could be interdependent, particularly if they each have been weakened over the years. Just a thought.

#1 
Written By William The Great on August 13th, 2007 @ 1:18 pm

That bridge had been rotting in several places for quite some time and this was widely known; well at least to local engineers. No one wanted to throw money at the problem so what happened was pretty predictable.

#2 
Written By Gary on August 13th, 2007 @ 9:04 pm

The bidge was a truss bridge. If one component fails it falls. They are called “fracture critical” for that reason.

#3 
Written By richard harold on September 4th, 2007 @ 1:36 pm

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