Sad Ol' Bridge
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Five years after the deadly collapse of the I-35W bridge in Minneapolis, experts say nearly 8000 of America's bridges are still in dire need of repair -- including landmark structures like the Brooklyn Bridge. But how much will it cost? And is there the political will to do it?
In the SciFri Snack: Tired of getting stuck in bridge traffic? Take a minute and listen to Dan McNichol, author of "The Roads That Built America,” tell us about the abuse that those poor old urban bridges take every day.
Produced by Christopher Intagliata, Senior Producer