Word: mianus
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Dates: during 2000-2009
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...other cases - the Mianus River Bridge in Connecticut (three dead in 1983) or the Silver Bridge, spanning the Ohio River between Ohio and West Virginia (46 dead in 1967) - the cause is far more subtle. The former was triggered by metal fatigue in a single steel pin: when it finally failed, the loss of support transferred excess stress on other parts, which couldn't handle it, failing in turn. The latter was finally traced, again, to a single piece of metal, which had been forged with a tiny, unnoticed crack that weakened further with corrosion...
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