Every bridge in the United States
Condition ratings, construction details and traffic counts for 624,192 highway bridges and culverts, straight from the Federal Highway Administration's 2025 National Bridge Inventory. Browse by state and county, or search for a road, river or structure number.
- Bridges
- 624,192
- 53 states and territories
- Counties
- 3,218
- Good condition
- 44%
- 272,778 bridges
- Fair condition
- 50%
- 309,729 bridges
- Poor condition
- 7%
- 41,685 bridges
- Average age
- 47.3 yrs
- oldest built 1697
Bridges by state
Circle size reflects the number of bridges. Click a state to explore it.States and territories
Full comparison| State | Bridges | Poor | Average age | Counties |
|---|---|---|---|---|
| Texas | 56,951 | 1.2% | 44.4 | 252 |
| Illinois | 26,927 | 9.5% | 45.3 | 102 |
| Ohio | 26,713 | 4.7% | 47.3 | 88 |
| California | 25,975 | 4.9% | 54.8 | 58 |
| Kansas | 24,891 | 5.2% | 52.8 | 105 |
| Missouri | 24,647 | 8.8% | 45.1 | 115 |
| Iowa | 23,716 | 18.6% | 45.5 | 99 |
| Pennsylvania | 23,314 | 12.1% | 54.8 | 67 |
| Oklahoma | 22,926 | 7.5% | 47.8 | 77 |
| Tennessee | 20,374 | 4.4% | 47.4 | 95 |
| Indiana | 19,542 | 5.3% | 46.6 | 92 |
| North Carolina | 19,343 | 7.1% | 38.7 | 100 |
| New York | 17,666 | 9.9% | 53 | 62 |
| Mississippi | 16,711 | 5.8% | 38.9 | 82 |
| Alabama | 16,181 | 3.4% | 51.1 | 67 |
| Nebraska | 15,412 | 7.5% | 47.1 | 90 |
| Georgia | 15,090 | 1.7% | 47.5 | 159 |
| Kentucky | 14,590 | 7.5% | 46.6 | 120 |
| Wisconsin | 14,498 | 6.7% | 40.3 | 72 |
| Virginia | 14,143 | 3.4% | 50.7 | 131 |
| Minnesota | 13,551 | 4.5% | 38.5 | 87 |
| Florida | 13,070 | 2.8% | 41.3 | 67 |
| Arkansas | 12,978 | 5.4% | 45.1 | 75 |
| Louisiana | 12,684 | 11.2% | 43 | 64 |
| Michigan | 11,397 | 11.0% | 48.3 | 83 |
| South Carolina | 9,504 | 6.3% | 48 | 46 |
| Colorado | 8,990 | 4.6% | 42.2 | 64 |
| Arizona | 8,587 | 1.1% | 47.8 | 15 |
| Washington | 8,520 | 5.6% | 49.8 | 40 |
| Oregon | 8,329 | 5.1% | 49.9 | 36 |
| West Virginia | 7,345 | 17.8% | 44.7 | 55 |
| New Jersey | 6,825 | 5.7% | 58.5 | 21 |
| South Dakota | 5,883 | 16.1% | 48.9 | 66 |
| Maryland | 5,500 | 4.4% | 52.6 | 24 |
| Massachusetts | 5,310 | 9.4% | 63.8 | 14 |
| Montana | 5,235 | 7.4% | 47 | 56 |
| Idaho | 4,646 | 5.4% | 45.3 | 44 |
| Connecticut | 4,363 | 4.8% | 56.7 | 8 |
| North Dakota | 4,250 | 11.1% | 48.2 | 53 |
| New Mexico | 4,033 | 4.3% | 51.5 | 33 |
| Utah | 3,144 | 3.5% | 40.1 | 29 |
| Wyoming | 3,138 | 7.1% | 48.4 | 23 |
| Vermont | 2,866 | 4.0% | 60.8 | 14 |
| New Hampshire | 2,549 | 7.5% | 56.9 | 10 |
| Maine | 2,542 | 15.4% | 53.7 | 16 |
| Puerto Rico | 2,434 | 14.1% | 51.2 | 78 |
| Nevada | 2,123 | 1.0% | 36.4 | 17 |
| Alaska | 1,660 | 7.5% | 35.9 | 31 |
| Hawaii | 1,180 | 5.7% | 63.8 | 5 |
| Delaware | 874 | 1.1% | 47.3 | 3 |
| Rhode Island | 787 | 14.0% | 54.5 | 5 |
| District of Columbia | 261 | 1.9% | 63.7 | 1 |
| U.S. Virgin Islands | 24 | 33.3% | 51.6 | 2 |
Condition of US bridges
Good44%(272,778)
Fair50%(309,729)
Poor7%(41,685)
- Good
- All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
- Fair
- The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
- Poor
- The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
Structure types
All types| Structure type | Bridges | Share |
|---|---|---|
| Stringer/Multi-beam or Girder | 241,624 | 38.7% |
| Culvert | 148,527 | 23.8% |
| Slab | 82,465 | 13.2% |
| Box Beam or Girders - Multiple | 62,329 | 10.0% |
| Tee Beam | 34,917 | 5.6% |
| Channel Beam | 16,278 | 2.6% |
| Box Beam or Girders - Single or Spread | 8,447 | 1.4% |
| Truss - Thru | 6,920 | 1.1% |
Busiest bridges
- I-295 US 130 over Woodbury CreekGoodGloucester County, New Jersey · 882,085 vehicles/day
- IH 35 over Pecan CreekFairHill County, Texas · 810,110 vehicles/day
- IH 35 NB over FM 2417GoodMcLennan County, Texas · 778,093 vehicles/day
- SR-56 WB over Trout CreekGoodPasco County, Florida · 761,000 vehicles/day
- I-78 EB over US 22 WBFairHunterdon County, New Jersey · 661,439 vehicles/day
- Mon CO Rt 19/25 over Scotts RunPoorMonongalia County, West Virginia · 600,500 vehicles/day
Longest bridges
- Cswy Bridge N. B. over Lake PontchartrainFairSt. Tammany Parish, Louisiana · 127,269 ft
- Causeway SB over Lake PontchartrainFairSt. Tammany Parish, Louisiana · 127,200 ft
- I0055 over I-10 & US 51 & SwampGoodSt. John the Baptist Parish, Louisiana · 76,714 ft
- I0055 over US 51 & SwampFairSt. John the Baptist Parish, Louisiana · 75,831 ft
- I0010 over Bonnet Carre SpillwayFairSt. Charles Parish, Louisiana · 50,814 ft
- I0010 over Bonnet Carre SpillwayFairSt. Charles Parish, Louisiana · 50,772 ft
Oldest bridges still in service
- Frankford Avenue over Pennypack CreekGoodPhiladelphia County, Pennsylvania · Built 1697
- ST 1 A/S Main ST over Water Ipswich RiverFairEssex County, Massachusetts · Built 1764
- HWY Adams ST over Water Neponset RiverFairSuffolk County, Massachusetts · Built 1765
- Old Bethlehem Road over Cooks CreekFairBucks County, Pennsylvania · Built 1777
- Trinity Lane over Gulph Mills CreekFairMontgomery County, Pennsylvania · Built 1789
- US 206 over Stony BrookFairMercer County, New Jersey · Built 1792
When America's bridges were built
Construction peaked in the 1960s and 1970s with the Interstate Highway System. Those bridges are now55 to 65 years old, which is why the average bridge age is47.3 years and why so many structures are rated fair.