Big Dig

[Char James-Tanny]

> It would be nice, if the blame could be put on poor
> documentation alone. Everything in the design was
> supposed to have been reviewed by the general
> contractor and by the state authority with oversight
> of the project. It appears that the hangers were
> rubberstamped by everyone without any engineering
> review. This appears to have been an engineering
> design error, rather than a documentation problem. It
> is possible that there wouldn't have been any
> failures, if everything had been done according to
> specs and the specs met design requirements.
>
> scroll down to "Was this event foreseeable?"
> http://en.wikipedia.org/wiki/Big_Dig_ceiling_collapse
> an engineering boards with a discussion of it.
> http://www.eng-tips.com/viewthread.cfm?qid=159632&page=1

And for more information, see today's Boston Globe articles at
http://www.boston.com. They talk about using different ceiling tiles
than planned (cheaper but heavier), reducing the number of bolts, the
problems with epoxy resin, etc.

Char James-Tanny ~ JTF Associates, Inc. ~ http://www.helpstuff.com
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