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 |
|---|---|---|---|---|---|
| SLICKAWAY RUN | Ohio | Good | 1900 | 126 | 477 |
| CLOVER LICK CREEK | Ohio | Poor | 1900 | 126 | 771 |
| TWELVEMILE CREEK | Ohio | Good | 1900 | 126 | 1,000 |
| COWAN CREEK | Ohio | Good | 1900 | 126 | 638 |
| SOUTH FORK LEES CREEK | Ohio | Good | 1900 | 126 | 191 |
| LYTLE CREEK | Ohio | Good | 1900 | 126 | 100 |
| MAHONING RIVER | Ohio | Good | 1900 | 126 | 77 |
| MIDDLE FORK LITTLE BEAVE | Ohio | Good | 1900 | 126 | 96 |
| NO NAME STREAM | Ohio | Good | 1900 | 126 | 1,497 |
| NO NAME | Ohio | Good | 1900 | 126 | 221 |
| SANDY CREEK | Ohio | Fair | 1900 | 126 | 324 |
| MAHONING RIVER | Ohio | Good | 1900 | 126 | 298 |
| NO NAME | Ohio | Good | 1900 | 126 | 324 |
| BRUSH CREEK | Ohio | Good | 1900 | 126 | 351 |
| SANDY BEAVER CANAL | Ohio | Fair | 1900 | 126 | 209 |
| NO NAME | Ohio | Fair | 1900 | 126 | 324 |
| WEST FORK LITTLE BEAVER | Ohio | Good | 1900 | 126 | 325 |
| WEST FORK LITTLE BEAVER | Ohio | Good | 1900 | 126 | 209 |
| STONE MILL RUN | Ohio | Fair | 1900 | 126 | 653 |
| NO NAME | Ohio | Good | 1900 | 126 | 209 |
| ELK RUN | Ohio | Good | 1900 | 126 | 549 |
| PENN RR | Ohio | Good | 1900 | 126 | 566 |
| MAHONING RIVER | Ohio | Good | 1900 | 126 | 385 |
| NO NAME | Ohio | Good | 1900 | 126 | 401 |
| CONSER RUN | Ohio | Good | 1900 | 126 | 96 |
| SANDY CREEK | Ohio | Good | 1900 | 126 | 209 |
| NO NAME | Ohio | Good | 1900 | 126 | 291 |
| WEST FORK LITTLE BEAVER | Ohio | Good | 1900 | 126 | 92 |
| NO NAME | Ohio | Good | 1900 | 126 | 96 |
| NORTH FORK YELLOW CREEK | Ohio | Good | 1900 | 126 | 371 |
| NO NAME | Ohio | Good | 1900 | 126 | 105 |
| YOUNGSTOWN & SOUTHERN | Ohio | Good | 1900 | 126 | 119 |
| MIDDLE FORK LITTLE BEAVE | Ohio | Good | 1900 | 126 | 229 |
| NO NAME (br of Sandy Cr) | Ohio | Fair | 1900 | 126 | 451 |
| LESLIE RUN | Ohio | Good | 1900 | 126 | 200 |
| MIDDLE FORK LITTLE BEAVE | Ohio | Poor | 1900 | 126 | 160 |
| MOHAWK CREEK | Ohio | Fair | 1900 | 126 | 332 |
| WHITE EYES CREEK | Ohio | Good | 1900 | 126 | 485 |
| LITTLE WATOMIKA CREEK | Ohio | Fair | 1900 | 126 | 209 |
| DOUGHTY CREEK | Ohio | Fair | 1900 | 126 | 189 |
| BEAVER RUN | Ohio | Fair | 1900 | 126 | 209 |
| DUTCH RUN | Ohio | Fair | 1900 | 126 | 303 |
| SYCAMORE CREEK BRANCH | Ohio | Fair | 1900 | 126 | 155 |
| OLENTANGY RIVER | Ohio | Poor | 1900 | 126 | 1,295 |
| NINE MILE CREEK | Ohio | Fair | 1900 | 126 | 6,702 |
| DEER LICK CREEK | Ohio | Poor | 1900 | 126 | 768 |
| NINE MILE CREEK | Ohio | Poor | 1900 | 126 | 9,474 |
| PRIVATE PROPERTY | Ohio | Fair | 1900 | 126 | 1,949 |
| TOWPATH TRAIL | Ohio | Fair | 1900 | 126 | 3,176 |
| DOAN BROOK 7-1 | Ohio | Good | 1900 | 126 | 22,150 |
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.