The new 520 floating bridge in Seattle isn’t even open yet and it’s already requiring some fixes. A design error caused pontoons that keep the bridge afloat to crack. And that’s going to add up to tens of millions of dollars in repairs- which the public will pay because the design was done by Washington State Department of Transportation engineers.

So how was a mistake like this made and what will happen to the engineers that made it? The Seattle Times has details.

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