Historic Bridges
94,376 bridges built before 1951 across the United States still in service today.
Bridges Built Before 1951
The United States has 94,376 bridges built before 1951 that remain in active service. These structures are 75+ years old — many predate modern engineering codes and were not designed for today's traffic volumes and vehicle weights. The average design life of a bridge is 50 years, making these aging structures a significant infrastructure concern.
| Bridge | State | Condition | Year Built | Age (Years) | ADT |
|---|---|---|---|---|---|
| TRAIN AVE N&S GCRTA55 CR | Ohio | Fair | 1901 | 125 | 14,814 |
| HELLBRANCH RUN (OHARRA) | Ohio | Fair | 1901 | 125 | 558 |
| TRIB TO PIGEON CR | Ohio | Fair | 1901 | 125 | 442 |
| BIG RUN CR | Ohio | Fair | 1901 | 125 | 193 |
| LITTLE SALT CR | Ohio | Good | 1901 | 125 | 203 |
| BUCKLICK CR | Ohio | Good | 1901 | 125 | 120 |
| SUGAR RUN | Ohio | Poor | 1901 | 125 | 8 |
| SYMMES CREEK | Ohio | Fair | 1901 | 125 | 8 |
| DICKASON RUN | Ohio | Fair | 1901 | 125 | 11 |
| MULGA RUN | Ohio | Fair | 1901 | 125 | 96 |
| PIGEON CR | Ohio | Poor | 1901 | 125 | 324 |
| BIG RUN CR | Ohio | Poor | 1901 | 125 | 209 |
| FOUR MILE CR | Ohio | Good | 1901 | 125 | 155 |
| LITTLE SCIOTO RIV | Ohio | Fair | 1901 | 125 | 209 |
| LITTLE SCIOTO RIVER | Ohio | Good | 1901 | 125 | 209 |
| BUCK LICK CR | Ohio | Poor | 1901 | 125 | 96 |
| SUGARCAMP CR | Ohio | Poor | 1901 | 125 | 45 |
| BRUSHY FORK CR | Ohio | Fair | 1901 | 125 | 209 |
| BUCKEYE CR | Ohio | Fair | 1901 | 125 | 209 |
| TRIB TO HOLLAND FORK | Ohio | Fair | 1901 | 125 | 324 |
| TRIB TO HOLLAND FORK | Ohio | Poor | 1901 | 125 | 100 |
| HUNTINGCAMP CR | Ohio | Fair | 1901 | 125 | 96 |
| MC INTYRE CREEK | Ohio | Poor | 1901 | 125 | 477 |
| YELLOW CREEK | Ohio | Poor | 1901 | 125 | 209 |
| OSBORNE RUN | Ohio | Fair | 1901 | 125 | 100 |
| DEANS FORK * BOWI | Ohio | Fair | 1901 | 125 | 76 |
| TOMS CREEK | Pennsylvania | Fair | 1901 | 125 | 675 |
| LICK RUN CREEK | Pennsylvania | Poor | 1901 | 125 | 1,115 |
| DOUGLAS RUN BRANCH | Pennsylvania | Fair | 1901 | 125 | 3,288 |
| NORFOLK SOUTHERN RR | Pennsylvania | Fair | 1901 | 125 | 3,000 |
| MARTINS CREEK | Pennsylvania | Fair | 1901 | 125 | 1,442 |
| LITTLE CONNOQUEN CR | Pennsylvania | Fair | 1901 | 125 | 100 |
| CATFISH RUN | Pennsylvania | Good | 1901 | 125 | 33 |
| RATTLESNAKE RUN | Pennsylvania | Fair | 1901 | 125 | 20 |
| FISHING CREEK | Pennsylvania | Poor | 1901 | 125 | 125 |
| OVER DECKARDS RUN | Pennsylvania | Fair | 1901 | 125 | 75 |
| OVER EAST BR. OIL CREEK | Pennsylvania | Poor | 1901 | 125 | 250 |
| SPRING CREEK | Pennsylvania | Fair | 1901 | 125 | 92 |
| STONY RUN | Pennsylvania | Fair | 1901 | 125 | 100 |
| ENLOW FORK WHEELING CK. | Pennsylvania | Poor | 1901 | 125 | 243 |
| SMITH CREEK | Pennsylvania | Good | 1901 | 125 | 25 |
| BIG RUN | Pennsylvania | Poor | 1901 | 125 | — |
| HELL RUN | Pennsylvania | Fair | 1901 | 125 | 75 |
| LAUREL HILL CREEK | Pennsylvania | Fair | 1901 | 125 | 256 |
| LITTLE LOYALSOCK CREEK | Pennsylvania | Poor | 1901 | 125 | 30 |
| OVER MILL CREEK | Pennsylvania | Fair | 1901 | 125 | 100 |
| BARRS RUN | Pennsylvania | Poor | 1901 | 125 | 132 |
| DELAWARE RIVER | Pennsylvania | Poor | 1901 | 125 | 379 |
| EQUINUNK CREEK | Pennsylvania | Poor | 1901 | 125 | 35 |
| N.BRANCH CALKINS CREEK | Pennsylvania | Fair | 1901 | 125 | 45 |
Historic Bridges by State
States ranked by number of bridges built before 1951 still in service.
| State | Historic Bridges | Oldest Year | Avg Age |
|---|---|---|---|
| Texas | 8,191 | 1900 | 89 yrs |
| Pennsylvania | 6,062 | 1697 | 99 yrs |
| Kansas | 5,656 | 1870 | 93 yrs |
| Oklahoma | 5,554 | 1900 | 89 yrs |
| Missouri | 4,522 | 1874 | 96 yrs |
| California | 4,414 | 1860 | 91 yrs |
| New York | 3,831 | 1800 | 96 yrs |
| Ohio | 3,386 | 1828 | 101 yrs |
| Nebraska | 3,270 | 1888 | 91 yrs |
| Illinois | 3,065 | 1863 | 99 yrs |
| Iowa | 3,036 | 1876 | 98 yrs |
| Tennessee | 2,857 | 1841 | 89 yrs |
| Alabama | 2,703 | 1800 | 90 yrs |
| Indiana | 2,682 | 1838 | 98 yrs |
| Virginia | 2,504 | 1820 | 92 yrs |
| Kentucky | 2,241 | 1835 | 89 yrs |
| Arkansas | 1,932 | 1860 | 89 yrs |
| Georgia | 1,832 | 1872 | 88 yrs |
| New Jersey | 1,814 | 1792 | 99 yrs |
| Michigan | 1,528 | 1867 | 94 yrs |
| Massachusetts | 1,481 | 1764 | 107 yrs |
| Wisconsin | 1,333 | 1887 | 92 yrs |
| South Carolina | 1,282 | 1910 | 89 yrs |
| West Virginia | 1,245 | 1817 | 96 yrs |
| North Carolina | 1,203 | 1900 | 89 yrs |
| Arizona | 1,189 | 1900 | 90 yrs |
| Washington | 1,188 | 1900 | 92 yrs |
| South Dakota | 1,118 | 1900 | 92 yrs |
| Minnesota | 1,035 | 1884 | 94 yrs |
| Vermont | 987 | 1824 | 99 yrs |
| Maryland | 968 | 1809 | 99 yrs |
| Mississippi | 908 | 1900 | 87 yrs |
| Connecticut | 860 | 1832 | 96 yrs |
| Colorado | 857 | 1887 | 89 yrs |
| Oregon | 790 | 1899 | 92 yrs |
| New Mexico | 719 | 1908 | 87 yrs |
| New Hampshire | 716 | 1832 | 97 yrs |
| Florida | 707 | 1900 | 87 yrs |
| North Dakota | 685 | 1885 | 91 yrs |
| Montana | 662 | 1881 | 90 yrs |
| Maine | 630 | 1854 | 92 yrs |
| Louisiana | 614 | 1908 | 87 yrs |
| Puerto Rico | 463 | 1842 | 95 yrs |
| Hawaii | 386 | 1900 | 95 yrs |
| Idaho | 354 | 1908 | 90 yrs |
| Utah | 217 | 1905 | 88 yrs |
| Wyoming | 191 | 1908 | 88 yrs |
| Rhode Island | 179 | 1810 | 107 yrs |
| Delaware | 122 | 1839 | 99 yrs |
| Nevada | 89 | 1900 | 89 yrs |
| District of Columbia | 81 | 1831 | 94 yrs |
| Alaska | 37 | 1910 | 86 yrs |
About Historic Bridge Data
Bridges built before 1951 are classified as historic in this database. Many were designed to 1940s standards with lower load limits and narrower lanes. While FHWA requires regular inspections of all bridges regardless of age, older structures often require more frequent monitoring and rehabilitation investment.