How many bridges are there in the United States?

USA hard Data from 2023

Guess before you scroll — the answer is below

Answer in bridges. Shorthand like 9m or 1.2bn works.

The answer

620,000 bridges

Roughly 620K.

The National Bridge Inventory lists about 620,000 bridges. Roughly 42,000 of them are rated in poor condition, and the average American bridge is over 44 years old — most were designed for a 50-year service life.

Where this number comes from

Source U.S. Federal Highway Administration, National Bridge Inventory
Figure refers to 2023
Last checked
Unit bridges

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