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 |
|---|---|---|---|---|---|
| MCGUIRE BR | Missouri | Fair | 1904 | 122 | 30 |
| YELLOW CR | Missouri | Poor | 1904 | 122 | 20 |
| PASSAIC RIVER | New Jersey | Good | 1904 | 122 | 6,089 |
| HOHOKUS BROOK | New Jersey | Fair | 1904 | 122 | 13,889 |
| HACKENSACK RIVER | New Jersey | Poor | 1904 | 122 | 17,341 |
| VINELAND SECONDARY | New Jersey | Fair | 1904 | 122 | 2,725 |
| ATLANTIC CITY LINE | New Jersey | Poor | 1904 | 122 | 1,882 |
| Park Road | New Jersey | Fair | 1904 | 122 | 21,669 |
| MONTCLAIR BOONTON LINE | New Jersey | Fair | 1904 | 122 | 3,040 |
| Montclair Boonton Line | New Jersey | Fair | 1904 | 122 | 9,010 |
| Montclair-Boonton Line | New Jersey | Fair | 1904 | 122 | 19,260 |
| MorristownLine (MP 8.77) | New Jersey | Fair | 1904 | 122 | 2,480 |
| MORRISTOWNLINE (MP 8.82) | New Jersey | Fair | 1904 | 122 | 4,605 |
| Morristown Line MP 8.94 | New Jersey | Fair | 1904 | 122 | 9,840 |
| Morristown Line(MP 9.02) | New Jersey | Fair | 1904 | 122 | 3,780 |
| MOLLY ANNS BROOK | New Jersey | Fair | 1904 | 122 | 17,565 |
| Delaware River | New Jersey | Fair | 1904 | 122 | 7,521 |
| Delaware River | New Jersey | Fair | 1904 | 122 | 14,115 |
| DELAWARE River | New Jersey | Fair | 1904 | 122 | 3,300 |
| DELAWARE River | New Jersey | Fair | 1904 | 122 | 5,000 |
| PEDESTRIAN TUNNEL | New York | Fair | 1904 | 122 | 37,334 |
| CATATONK CREEK | New York | Fair | 1904 | 122 | 337 |
| HARLEM RIVER | New York | Good | 1904 | 122 | 21,664 |
| Abandoned CSX TRANS/P MR | New York | Fair | 1904 | 122 | 8,075 |
| METRO NO COMMUTER | New York | Fair | 1904 | 122 | 27,165 |
| BRONX RIVER | New York | Fair | 1904 | 122 | 27,165 |
| PARKING GARAGE | New York | Fair | 1904 | 122 | 5,023 |
| NEW CROTON RESERVOIR | New York | Poor | 1904 | 122 | — |
| KISCO RIVER | New York | Good | 1904 | 122 | 2,736 |
| CROTON RESERVOIR OUTLET | New York | Good | 1904 | 122 | 9 |
| SAGE CREEK | New York | Fair | 1904 | 122 | 263 |
| JAMES RIVER | North Dakota | Poor | 1904 | 122 | 50 |
| SHEYENNE RIVER | North Dakota | Poor | 1904 | 122 | 5 |
| TWOMILE CREEK | Ohio | Good | 1904 | 122 | 460 |
| STONELICK CREEK | Ohio | Poor | 1904 | 122 | 870 |
| SANDUSKY RIVER | Ohio | Good | 1904 | 122 | 351 |
| BALDWIN CREEK | Ohio | Fair | 1904 | 122 | 4,175 |
| MARKLEY RUN | Ohio | Fair | 1904 | 122 | 324 |
| INDIAN CREEK | Ohio | Good | 1904 | 122 | 1,017 |
| WB BLACK RIVER | Ohio | Fair | 1904 | 122 | 3,748 |
| EAST BRANCH LOST CREEK | Ohio | Poor | 1904 | 122 | 164 |
| TWIN CREEK | Ohio | Fair | 1904 | 122 | 655 |
| LITTLE CREEK | Ohio | Poor | 1904 | 122 | 311 |
| TRIB. OF LITTLE CREEK | Ohio | Good | 1904 | 122 | 293 |
| LITTLE CUYAHOGA RIVER | Ohio | Fair | 1904 | 122 | 7,682 |
| MIDDLE CREEK | Pennsylvania | Poor | 1904 | 122 | 75 |
| ALLEGHENY VALLEY RR | Pennsylvania | Fair | 1904 | 122 | 8,000 |
| MAIDEN CREEK | Pennsylvania | Fair | 1904 | 122 | 63 |
| TOWANDA CREEK | Pennsylvania | Poor | 1904 | 122 | 50 |
| DELAWARE River | Pennsylvania | Fair | 1904 | 122 | 5,600 |
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.