Thak you for your critique of my theory.
One lane was closed.
Has the bridge ever had bumper to bumper traffic? Yes.
Has it had it when one lane has had the concrete ground away and new concrete is being poured by numerous concrete trucks, concentrating heavier than normal loads on it? Not that I know of.
There were concrete trucks, one of them was halfway in the river at a key point of the collapse.
Sorry the news folks aren’t showing this to you right now, probably because it’s DARK right now.
The ‘concrete structure portion’ landed on top of the train. Ya think maybe it could have failed ???? Shifted???? Added to the combined factors to produce this disaster.
As for center piers, look at the bridge next to it, and look at pictures of this one before the collapse.
SEE ANY PIER IN MIDSTREAM????
I anxiously await your informed response.
So, to sum up, can we surmise that the bridge collapsed because of the following:
overload (too many construction vehicles, poorly placed, too much traffic)
freight train vibrations/displacement (oh, please say this had something to do with it! It makes such a simple visual for me!)
You have given some great explanations, pictures even. Thanks for all your work!
P.S. Sorry I am being sarcastic and smartaleck.
It is a personality flaw. A habit from junior high.
I am going to try to be more informative, and less critical on this thread, posting to you and others.
What one or the other of us thinks he/she knows and tries to embarrass the other over doesn’t save one life, or answer any questions.
If I may ask, are you an engineer? Architect?
I am neither. If that answers what I think you were asking when you first responded to me.
I like your theory on why the bridge collapsed. Pretty good analysis for a layperson.
Being that the bridge was already stressed, the extra tons of weight of all the concrete trucks, etc., might have been a factor.
At least you’re not blaming it on Global Warming, like some of the Mediots.