How Superhighways Changed America — For Better and Worse

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It’s hard to imagine it now, but in the mid-1920s, the U.S. only had 250 routes for cars. Today, there are more than 55,000 auto bridges, close to 4 million miles of road, and an intricate system of high speed super highways that connect every major city in the country.

These superhighways — which allowed drivers to travel long distances at high speeds — redefined American cities and culture.

Earl Swift has written a comprehensive examination of these roadways called “The Big Roads: The Untold Story of the Engineers, Visionaries, and Trailblazers who Created the American Superhighways.” He joins us from Virginia.