Brent Spence Bridge

The Brent Spence Bridge is a double decker, cantilevered truss bridge that carries Interstates 71 and 75 across the Ohio River between Covington, Kentucky and Cincinnati, Ohio. The top deck carries Kentucky-bound traffic while the bottom deck carries Ohio-bound traffic. With around 150,000 crossings per day, it is the third busiest bridge in the United States, after the George Washington Bridge over the Hudson River and the San Francisco-Oakland Bay Bridge over San Francisco Bay.

Source: Wikipedia