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Product Safety9,700+ CPSC product recalls Food Safety28,600+ FDA food recalls Pet Safety1.3M FDA animal adverse events Drug Safety17,500+ FDA drug recalls Device Safety38,400+ FDA device recalls Workplace Safety102,900+ OSHA injury reports Brand HistoryRecall lookup by company

Infrastructure

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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
INDIAN CREEK Iowa Poor 1900 126 15
INDIAN CREEK Iowa Poor 1900 126 20
BROKEN KETTLE CREEK Iowa Poor 1900 126 34
INDIAN CREEK Iowa Poor 1900 126 20
BEAVER CREEK Iowa Poor 1900 126 26
N LIZARD CREEK Iowa Poor 1900 126 30
BEAVER CREEK Iowa Poor 1900 126 20
MUD CREEK Iowa Fair 1900 126 213
CREEK Iowa Fair 1900 126 40
LOTTS CREEK Iowa Poor 1900 126 20
UNNAMED CREEK Iowa Fair 1900 126 1,117
NO NAME CREEK Iowa Good 1900 126 40
SM STREAM Iowa Fair 1900 126 34
SMALL STREAM Iowa Poor 1900 126 110
EAST BR INDIAN CREEK Iowa Poor 1900 126 34
DYE CREEK Iowa Fair 1900 126 26
WALNUT CREEK Iowa Fair 1900 126 80
BEAR CREEK Iowa Fair 1900 126 45
WEST BR INDIAN CREEK Iowa Poor 1900 126 15
MILFORD 32 DD Iowa Fair 1900 126 34
DD 32 Iowa Fair 1900 126 45
IOWAY CREEK Iowa Poor 1900 126 120
ROAD DITCH Iowa Fair 1900 126 10
HARDIN-STORY DD 1 Iowa Poor 1900 126 15
BEAR CREEK Iowa Poor 1900 126 30
HAMILTON-STORY 1 OPEN DD Iowa Poor 1900 126 34
KEIGLEY BRANCH Iowa Poor 1900 126 15
RICHLAND CREEK Iowa Poor 1900 126 5
SUGAR CREEK Iowa Poor 1900 126 88
JORDAN CREEK Iowa Fair 1900 126 39
DEER CREEK Iowa Fair 1900 126 70
PLATTE BRANCH Iowa Poor 1900 126 15
SIDE DITCH Iowa Fair 1900 126 10
CREEK Iowa Poor 1900 126 5
CREEK Iowa Poor 1900 126 —
STREAM Iowa Poor 1900 126 11
SMALL STREAM Iowa Poor 1900 126 5
STREAM Iowa Poor 1900 126 26
STREAM Iowa Poor 1900 126 21
SMALL STREAM Iowa Poor 1900 126 5
SMALL STREAM Iowa Poor 1900 126 30
WEST PLATTE RIVER Iowa Poor 1900 126 15
STREAM Iowa Poor 1900 126 51
STREAM Iowa Poor 1900 126 15
SMALL STREAM Iowa Poor 1900 126 30
SMALL STREAM Iowa Poor 1900 126 5
PAINTER CREEK Iowa Poor 1900 126 71
STREAM Iowa Poor 1900 126 5
STREAM (SDB) Iowa Poor 1900 126 10
BRUSHY CREEK Iowa Poor 1900 126 30

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.

All Bridges Poor Condition Scour Critical Bridge Stats