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How many bridges exist on the Interstate system?

April 26, 2017Bridges exist interstate system

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How many bridges exist on the Interstate system?

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(Top) More than 55,000 bridges have been built on the Interstate system. There are a total of 58 one- or two-number Interstates in the continental U.S. Of those 58, 27 run primarily east west. The other 31 go primarily north south. There are three Interstates in Hawaii (H-1, H-2, and H-3).