A container ship colliding into the Francis Scott Key Bridge in Baltimore is drawing attention to potential vulnerabilities among some of America’s more than 600,000 bridges.
The Key Bridge stood for 47 years, and in that time it never received the sort of jolt that anyone could have thought would bring it down. But when the Dali, a ship weighing more than 100,000 tons, smashed into it, the bridge tumbled in less than a minute. While such a catastrophic collapse might not have been entirely predictable, bridge collapses as the result of collisions aren’t entirely unheard of, and this one may have been avoidable.
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