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 |
|---|---|---|---|---|---|
| METRO NO COMMUTER | New York | Fair | 1896 | 130 | 2,349 |
| LONG ISLAND RR | New York | Fair | 1896 | 130 | 19,018 |
| LIRR MONTAUK BR | New York | Fair | 1896 | 130 | 42 |
| RONDOUT CREEK | New York | Fair | 1896 | 130 | 314 |
| CRUM ELBOW CREEK | New York | Fair | 1896 | 130 | 550 |
| CRABAPPLE CREEK | Ohio | Fair | 1896 | 130 | 351 |
| TRIB. N. BR. KOKOSING | Ohio | Poor | 1896 | 130 | 40 |
| CSX RAILROAD BOUNDARY ST | Pennsylvania | Fair | 1896 | 130 | 14,000 |
| PANTH HOLLOW UNKNOWN STR | Pennsylvania | Fair | 1896 | 130 | 13,500 |
| LITTLE FISHING CREEK | Pennsylvania | Fair | 1896 | 130 | 100 |
| OVER MILL RUN | Pennsylvania | Fair | 1896 | 130 | 8,153 |
| OVER OIL CREEK EAST BR. | Pennsylvania | Fair | 1896 | 130 | 250 |
| OVER WOODCOCK CREEK | Pennsylvania | Fair | 1896 | 130 | 250 |
| OVER CONNEAUT CREEK | Pennsylvania | Fair | 1896 | 130 | 250 |
| CONODOGUINET CREEK | Pennsylvania | Poor | 1896 | 130 | 439 |
| SHADE CREEK | Pennsylvania | Fair | 1896 | 130 | 50 |
| AMTRAK | Pennsylvania | Good | 1896 | 130 | 507 |
| FREYS RUN | Pennsylvania | Poor | 1896 | 130 | 1,699 |
| DELAWARE RIVER | Pennsylvania | Fair | 1896 | 130 | 18,700 |
| WARRIOR RUN | Pennsylvania | Fair | 1896 | 130 | 50 |
| BERMUDIAN CREEK | Pennsylvania | Poor | 1896 | 130 | 101 |
| PENNYPACK CREEK | Pennsylvania | Fair | 1896 | 130 | 10,504 |
| CSX RR TUNNELS | Pennsylvania | Poor | 1896 | 130 | 37,818 |
| Chamounix Drive | Pennsylvania | Fair | 1896 | 130 | 17,999 |
| POCASSET RIVER | Rhode Island | Fair | 1896 | 130 | 13,032 |
| STERLING BROOK | Vermont | Good | 1896 | 130 | 150 |
| N. BR. LAMOILLE RIVER | Vermont | Fair | 1896 | 130 | 10 |
| DRAINAGE RAVINE | Wisconsin | Fair | 1896 | 130 | 58 |
| ROSE CREEK | Georgia | Fair | 1897 | 129 | 126 |
| DUCKS MISERY | Illinois | Fair | 1897 | 129 | 225 |
| EAST BRANCH | Illinois | Fair | 1897 | 129 | 25 |
| PIPE CREEK | Indiana | Poor | 1897 | 129 | 225 |
| BOGGS CREEK | Indiana | Good | 1897 | 129 | 159 |
| BIG CREEK | Indiana | Poor | 1897 | 129 | 5 |
| SALT CREEK | Iowa | Poor | 1897 | 129 | 44 |
| MIDDLE CREEK | Maryland | Fair | 1897 | 129 | 460 |
| WATER MUDDY RIVER | Massachusetts | Fair | 1897 | 129 | 14,700 |
| TR GREEN LINE D | Massachusetts | Fair | 1897 | 129 | 15,435 |
| WATER CHARLES RIVER | Massachusetts | Fair | 1897 | 129 | 1,810 |
| RR (ABANDONED) | Massachusetts | Good | 1897 | 129 | 2,357 |
| WATER NORTHERN CANAL | Massachusetts | Fair | 1897 | 129 | 11,800 |
| RR GWRR & NECRR | Massachusetts | Fair | 1897 | 129 | 2,500 |
| WATER TOWN RIVER | Massachusetts | Fair | 1897 | 129 | 20,043 |
| NORTH MACON DRAIN | Michigan | Fair | 1897 | 129 | 21 |
| ANDERSON AVE | Missouri | Good | 1897 | 129 | 1,201 |
| JEFFERSON RIVER 004 | Montana | Poor | 1897 | 129 | 100 |
| BIG BLUE RIVER | Nebraska | Poor | 1897 | 129 | 15 |
| ATLANTIC CITY LINE | New Jersey | Fair | 1897 | 129 | 10,772 |
| LOCKATONG CREEK | New Jersey | Fair | 1897 | 129 | 126 |
| MANASQUAN RIVER | New Jersey | Poor | 1897 | 129 | 949 |
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.