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 |
|---|---|---|---|---|---|
| WOLF CR | Missouri | Poor | 1912 | 114 | 15 |
| FITZHUGH BR | Missouri | Good | 1912 | 114 | 60 |
| BR OF HILLERS CR | Missouri | Fair | 1912 | 114 | 75 |
| DRY FORK CR | Missouri | Poor | 1912 | 114 | 20 |
| DITCH | Missouri | Fair | 1912 | 114 | 15 |
| BR OF CEDAR CR | Missouri | Poor | 1912 | 114 | 15 |
| FINLEY RVR | Missouri | Poor | 1912 | 114 | 300 |
| MADDOX BR | Missouri | Fair | 1912 | 114 | 25 |
| BNSF RR | Missouri | Poor | 1912 | 114 | 417 |
| BR OF PRAIRIE FK | Missouri | Fair | 1912 | 114 | 30 |
| HOGAN FK | Missouri | Poor | 1912 | 114 | 167 |
| HUNT BR | Missouri | Fair | 1912 | 114 | 100 |
| SPRING CREEK 019 | Montana | Fair | 1912 | 114 | 47 |
| WARM SPRINGS CREEK 016 | Montana | Poor | 1912 | 114 | 100 |
| KOOTENAI RIVER 070 | Montana | Fair | 1912 | 114 | 100 |
| FLATHEAD CREEK 020 | Montana | Fair | 1912 | 114 | 100 |
| WEST BOULDER RIVER 025 | Montana | Poor | 1912 | 114 | 100 |
| CEDAR RIVER | Nebraska | Fair | 1912 | 114 | 115 |
| PLUM CREEK | Nebraska | Poor | 1912 | 114 | 50 |
| PRAIRIE CREEK | Nebraska | Poor | 1912 | 114 | 40 |
| WOOD RIVER | Nebraska | Fair | 1912 | 114 | 50 |
| NIOBRARA RIVER | Nebraska | Poor | 1912 | 114 | 35 |
| MUD CREEK | Nebraska | Poor | 1912 | 114 | 50 |
| ELKHORN RIVER | Nebraska | Poor | 1912 | 114 | 250 |
| CONNECTICUT RIVER | New Hampshire | Fair | 1912 | 114 | 180 |
| LAMPREY RIVER | New Hampshire | Good | 1912 | 114 | 1,378 |
| CRYSTAL LAKE SPILLWAY | New Jersey | Good | 1912 | 114 | 607 |
| NORTH BR PENNSAUKEN CK | New Jersey | Poor | 1912 | 114 | 11,669 |
| BARKERS BROOK | New Jersey | Poor | 1912 | 114 | 8,244 |
| Montclair Boonton Line | New Jersey | Fair | 1912 | 114 | 10,800 |
| OLDMANS CREEK | New Jersey | Poor | 1912 | 114 | 904 |
| S BR ROCKAWAY CREEK | New Jersey | Good | 1912 | 114 | 36,773 |
| MOORES CREEK | New Jersey | Fair | 1912 | 114 | 11,227 |
| SAYREVILLE SECONDARY | New Jersey | Fair | 1912 | 114 | 13,614 |
| PEQUEST RIVER | New Jersey | Good | 1912 | 114 | 5,418 |
| FORMER SCRANTON BRANCH | New Jersey | Fair | 1912 | 114 | 907 |
| FORMER SCRANTON BRANCH | New Jersey | Fair | 1912 | 114 | 907 |
| LA MANTECA ARROYO | New Mexico | Fair | 1912 | 114 | 205 |
| UNKNOWN STREAM | New York | Fair | 1912 | 114 | 947 |
| ASHOKAN SPILLWAY | New York | Fair | 1912 | 114 | 450 |
| KINDERHOOK CREEK | New York | Poor | 1912 | 114 | 16 |
| OWASCO OUTLET | New York | Good | 1912 | 114 | 7,107 |
| BUILDING | New York | Poor | 1912 | 114 | 10,973 |
| UNIVERSAL METAL BUILDING | New York | Poor | 1912 | 114 | 6,987 |
| MNRR Yard Tracks | New York | Good | 1912 | 114 | 11,343 |
| EX-NYCRR PUTNAM B | New York | Fair | 1912 | 114 | 19,886 |
| ABANDONED NYCRR | New York | Fair | 1912 | 114 | 6,676 |
| NY & Atlantic/L NYCTA S | New York | Fair | 1912 | 114 | 11,475 |
| NY & Atlantic/L NYCTA S | New York | Good | 1912 | 114 | 9,168 |
| LIRR PORT WASH BR | New York | Good | 1912 | 114 | 8,543 |
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.