Bridge Safety Statistics
Data and trends from 624,169 bridges in the FHWA National Bridge Inventory across 52 states.
The National Bridge Inventory contains 624,169 bridges across 52 states. Of these, 41,677 are rated in Poor condition, meaning they require attention or have structural deficiencies that need to be addressed.
Condition Distribution
Overall bridge condition ratings nationwide.
Built by Decade
When the nation's bridges were constructed.
By Owner Type
Bridge ownership distribution across all states.
Top States by Bridge Count
States with the most bridges in the National Bridge Inventory.
Bridges by State
Complete state-by-state bridge count from the National Bridge Inventory.
| # | State | Bridges | Good | Poor |
|---|---|---|---|---|
| 1 | Texas | 56,951 | 29,423 | 680 |
| 2 | Illinois | 26,927 | 12,012 | 2,563 |
| 3 | Ohio | 26,713 | 16,242 | 1,266 |
| 4 | California | 25,975 | 12,239 | 1,284 |
| 5 | Kansas | 24,891 | 12,966 | 1,301 |
| 6 | Missouri | 24,647 | 9,180 | 2,163 |
| 7 | Iowa | 23,716 | 9,329 | 4,423 |
| 8 | Pennsylvania | 23,314 | 8,019 | 2,813 |
| 9 | Oklahoma | 22,926 | 9,515 | 1,719 |
| 10 | Tennessee | 20,374 | 8,620 | 887 |
| 11 | Indiana | 19,542 | 8,213 | 1,043 |
| 12 | North Carolina | 19,343 | 8,800 | 1,382 |
| 13 | New York | 17,666 | 5,698 | 1,741 |
| 14 | Mississippi | 16,711 | 9,070 | 967 |
| 15 | Alabama | 16,181 | 5,801 | 545 |
| 16 | Nebraska | 15,412 | 8,169 | 1,155 |
| 17 | Georgia | 15,090 | 10,876 | 263 |
| 18 | Kentucky | 14,590 | 3,916 | 1,088 |
| 19 | Wisconsin | 14,498 | 6,749 | 976 |
| 20 | Virginia | 14,143 | 4,609 | 485 |
| 21 | Minnesota | 13,551 | 7,636 | 609 |
| 22 | Florida | 13,070 | 7,705 | 360 |
| 23 | Arkansas | 12,978 | 5,770 | 695 |
| 24 | Louisiana | 12,684 | 4,802 | 1,423 |
| 25 | Michigan | 11,397 | 3,778 | 1,250 |
| 26 | South Carolina | 9,504 | 3,568 | 602 |
| 27 | Colorado | 8,990 | 3,035 | 417 |
| 28 | Arizona | 8,587 | 5,430 | 95 |
| 29 | Washington | 8,520 | 4,343 | 473 |
| 30 | Oregon | 8,329 | 2,645 | 422 |
| 31 | West Virginia | 7,345 | 1,960 | 1,307 |
| 32 | New Jersey | 6,825 | 1,732 | 392 |
| 33 | South Dakota | 5,883 | 2,038 | 945 |
| 34 | Maryland | 5,500 | 1,753 | 240 |
| 35 | Massachusetts | 5,311 | 1,291 | 501 |
| 36 | Montana | 5,235 | 1,682 | 388 |
| 37 | Idaho | 4,646 | 1,468 | 250 |
| 38 | Connecticut | 4,363 | 1,210 | 209 |
| 39 | North Dakota | 4,250 | 1,782 | 470 |
| 40 | New Mexico | 4,033 | 1,356 | 172 |
| 41 | Utah | 3,144 | 659 | 109 |
| 42 | Wyoming | 3,138 | 895 | 224 |
| 43 | Vermont | 2,866 | 1,348 | 114 |
| 44 | New Hampshire | 2,549 | 1,303 | 192 |
| 45 | Maine | 2,542 | 637 | 392 |
| 46 | Puerto Rico | 2,434 | 414 | 344 |
| 47 | Nevada | 2,123 | 1,200 | 22 |
| 48 | Alaska | 1,660 | 766 | 124 |
| 49 | Hawaii | 1,180 | 461 | 67 |
| 50 | Delaware | 874 | 376 | 10 |
| 51 | Rhode Island | 787 | 196 | 110 |
| 52 | District of Columbia | 261 | 90 | 5 |
About This Data
All bridge data comes from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI). The NBI is a database of all bridges and tunnels on public roads in the United States that have a span of more than 20 feet. Bridge owners are required to inspect each structure at least once every two years and submit the results to FHWA.
Good means the bridge's structural elements are sound and functioning as designed. Fair means the bridge shows some minor deterioration but is structurally adequate. Poor means the bridge has significant deterioration and may have load-carrying restrictions. A Poor rating does not mean the bridge is unsafe for travel, bridges deemed unsafe are closed to traffic.