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 |
|---|---|---|---|---|---|
| FISHING CREEK | Maryland | Good | 1906 | 120 | 166 |
| BEAVER CREEK | Maryland | Fair | 1906 | 120 | 399 |
| RR MBTA/BMRR | Massachusetts | Fair | 1906 | 120 | 9,069 |
| RR CSX/MACRR | Massachusetts | Fair | 1906 | 120 | 3,214 |
| WATER CHARLES RIVER | Massachusetts | Poor | 1906 | 120 | 28,188 |
| RR CSX | Massachusetts | Fair | 1906 | 120 | 12,413 |
| HWY MARTIN COUGHLIN BY | Massachusetts | Fair | 1906 | 120 | 16,800 |
| HWY MARTIN COUGHLIN BY | Massachusetts | Fair | 1906 | 120 | 28,100 |
| RR MBTA/CSX | Massachusetts | Fair | 1906 | 120 | 11,121 |
| RR MBTA | Massachusetts | Fair | 1906 | 120 | 1,400 |
| TR GREEN LINE D | Massachusetts | Fair | 1906 | 120 | 1,500 |
| RR CSX | Massachusetts | Fair | 1906 | 120 | 41,897 |
| WATER N NASHUA RIVER | Massachusetts | Fair | 1906 | 120 | 9,922 |
| WATER BLYNMAN CANAL | Massachusetts | Poor | 1906 | 120 | 4,886 |
| WATER MERRIMACK RIVER | Massachusetts | Good | 1906 | 120 | 10,682 |
| WATER MYSTIC RIVER | Massachusetts | Fair | 1906 | 120 | 26,600 |
| WATER MYSTIC RIVER | Massachusetts | Fair | 1906 | 120 | 33,900 |
| TR GREEN LINE D | Massachusetts | Fair | 1906 | 120 | 766 |
| TR GREEN LINE D | Massachusetts | Poor | 1906 | 120 | 24,569 |
| WERNERS CREEK | Michigan | Fair | 1906 | 120 | 50 |
| BETSIE RIVER | Michigan | Fair | 1906 | 120 | 54 |
| HAYWORTH CREEK | Michigan | Poor | 1906 | 120 | 102 |
| SHIAWASSEE RIVER | Michigan | Good | 1906 | 120 | 10,918 |
| PRESQUE ISLE RIVER | Michigan | Poor | 1906 | 120 | 10 |
| SALT RIVER | Michigan | Poor | 1906 | 120 | 73 |
| MILL RACE | Michigan | Fair | 1906 | 120 | 233 |
| MANISTEE RIVER | Michigan | Poor | 1906 | 120 | 106 |
| MO ROUTE 12 | Missouri | Fair | 1906 | 120 | 3,459 |
| HURRICANE CR | Missouri | Poor | 1906 | 120 | 35 |
| BIG RVR | Missouri | Fair | 1906 | 120 | 200 |
| PLATTIN CR | Missouri | Poor | 1906 | 120 | 242 |
| PANTHER CR | Missouri | Fair | 1906 | 120 | 25 |
| CREEK | Missouri | Poor | 1906 | 120 | 504 |
| N FK ELKHORN RIVER | Nebraska | Poor | 1906 | 120 | 100 |
| MUDDY CREEK | Nebraska | Poor | 1906 | 120 | 20 |
| LANDING CREEK | New Jersey | Fair | 1906 | 120 | 1,062 |
| OVERPECK CREEK | New Jersey | Fair | 1906 | 120 | 1,441 |
| SPARKILL CREEK | New Jersey | Fair | 1906 | 120 | 22,073 |
| NYS&W RAILROAD MAIN LINE | New Jersey | Fair | 1906 | 120 | 11,643 |
| N BRANCH PENNSAUKEN CRK | New Jersey | Poor | 1906 | 120 | 3,521 |
| PARKERS CREEK | New Jersey | Poor | 1906 | 120 | 10,066 |
| COOPER RIVER | New Jersey | Fair | 1906 | 120 | 10,924 |
| CAPE MAY BRANCH | New Jersey | Fair | 1906 | 120 | 5,531 |
| S. BRANCH RARITAN RIVER | New Jersey | Good | 1906 | 120 | 12,976 |
| PASSAIC RIVER | New Jersey | Fair | 1906 | 120 | 28,602 |
| MINE BROOK | New Jersey | Fair | 1906 | 120 | 1,197 |
| BEAR GULCH CREEK | New York | Poor | 1906 | 120 | 170 |
| MUD CREEK OVERFLO | New York | Fair | 1906 | 120 | 2,550 |
| CROSS RIVER RESERVOIR | New York | Fair | 1906 | 120 | 2,996 |
| BRANDY BROOK | New York | Fair | 1906 | 120 | 304 |
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.