Most Traveled Bridges in America

Some bridges carry more than 300,000 vehicles per day — the equivalent of a small city's entire population crossing a single structure every 24 hours. These high-traffic bridges are critical chokepoints in the national highway system. When one needs repair, the traffic disruption can ripple across an entire metro area.

The bridges below are ranked by average daily traffic (ADT), a figure measured by state transportation departments and reported to the Federal Highway Administration. High-traffic bridges in poor condition are the most urgent candidates for repair or replacement.

Busiest Bridges by State