Iconic Bridges in Trouble: Is There One In Your Town?

According to an analysis of the 2012 National Bridge Inventory by Transportation for America, a non-profit advocacy group, the following bridges have been designated as "structurally deficient," meaning they require significant maintenance, rehabilitation or replacement.

Is there one in your town?

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Brooklyn Bridge in New York City. Average daily traffic: 140,000

Credit: Jim Spellman/Getty Images

Coronado Bay Bridge in San Diego. Average daily traffic: 78,000

Credit: Fuse/Getty Images

North LaSalle Street Bridge in Chicago. Average daily traffic: 12,450

Credit: E+/Getty Images

Steel Bridge in Portland , Ore. Average daily traffic: 24,216

Credit: Photodisc/Getty Images

Longfellow Bridge in Boston. Average daily traffic: 44,000

Credit: Glowimages/Getty Images

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