“The current generation of baby boomer bridges are showing their age, and they’re going to require significant investment,” Pete Rahn, the [American Association of State Highway and Transportation Officials] president and director of the Missouri Department of Transportation, said at the news conference.
[From Bridges Still Crumble, a Year After the I-35 Disaster - The Lede - Breaking News - New York Times Blog]
One in four US bridges is "structurally deficient," this guy says.
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