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Map – more than 10 percent of American bridges are structurally deficient

America’s Oldest, Most Crumbling, Most Crowded Bridges, Mapped:  “For an advanced industrial country, America has pretty lousy infrastructure. Our ports, airports, roads and transit regularly get ‘D’ and ‘C’ grades in the the American Society of Engineers’s report cards. As in: Could do a lot better. About 11% of the nation’s 600,000 bridges are “structurally deficient,” meaning they need significant repair or rehabilitation. You can see them all visualized on this map created by Jonah Adkins. It shows both bridge status (“structurally deficient” in orange, “functionally obsolete” in red) and traffic counts across bridges (75,000 a day in dark orange, 100,000-plus in red)…”

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