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
RAPES RUN Ohio Fair 1900 126 401
SEVEN MILE CREEK Ohio Fair 1900 126 667
PAINT CREEK Ohio Good 1900 126 667
SEVENTEEN MILE CREEK Ohio Fair 1900 126 809
FOUR MILE CREEK Ohio Poor 1900 126 477
LITTLE FOUR MILE CREEK Ohio Poor 1900 126 385
KELLYS RUN Ohio Good 1900 126 52
TWIN CREEK Ohio Poor 1900 126 490
SWAMP CREEK Ohio Poor 1900 126 351
LESLIES RUN Ohio Fair 1900 126 631
SAVERS DITCH Ohio Good 1900 126 324
HALDERMAN CREEK Ohio Fair 1900 126 61
AUKERMAN CREEK Ohio Poor 1900 126 629
SEVEN MILE CREEK Ohio Good 1900 126 351
SEVEN MILE CREEK Ohio Good 1900 126 351
SEVEN MILE CREEK Ohio Poor 1900 126 4,665
PRICES CREEK Ohio Poor 1900 126 769
FOUR MILE CREEK Ohio Poor 1900 126 351
BROWNS BRANCH Ohio Good 1900 126 237
TRIB TO SEVEN MILE CREEK Ohio Poor 1900 126 463
DEER CREEK Ohio Good 1900 126 351
NORTH POWELL CREEK Ohio Fair 1900 126 44
SUGAR CREEK Ohio Fair 1900 126 189
PLUM CREEK Ohio Poor 1900 126 477
EAST FORK SLATER RUN Ohio Fair 1900 126 324
UNNAMED CREEK Ohio Fair 1900 126 324
MARSH RUN Ohio Poor 1900 126 155
UNNAMED STREAM Ohio Fair 1900 126 351
UNNAMED BRANCH HONEY CRK Ohio Fair 1900 126 324
HERRODS CREEK Ohio Fair 1900 126 177
WALNUT CREEK Ohio Fair 1900 126 438
BUCKSKIN CREEK Ohio Fair 1900 126 1,215
STONE RUN Ohio Fair 1900 126 789
DEWEY CR. Ohio Fair 1900 126 158
DEWEY CREEK Ohio Fair 1900 126 158
BRANCH OF LITTLE CREEK Ohio Fair 1900 126 879
LITTLE CREEK Ohio Fair 1900 126 20
TRIBUTARY BUCKSKIN CREEK Ohio Fair 1900 126 209
LITTLE CREEK Ohio Fair 1900 126 731
TRIBUTARY INDIAN CREEK Ohio Poor 1900 126 1,336
RALSTON RUN Ohio Fair 1900 126 209
ROZELLE CREEK Ohio Poor 1900 126 1,517
ROZELLE CREEK Ohio Fair 1900 126 1,517
TRIBUTARY INDIAN CREEK Ohio Good 1900 126 414
CLOSED Ohio Poor 1900 126 420
GOSHEN RUN Ohio Poor 1900 126 446
SUGAR RUN Ohio Fair 1900 126 477
DRY RUN Ohio Fair 1900 126 2,231
WALNUT CREEK Ohio Fair 1900 126 418
DRY RUN Ohio Good 1900 126 695

Historic Bridges by State

States ranked by number of bridges built before 1951 still in service.

StateHistoric BridgesOldest YearAvg 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.