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Historic Bridges in Iowa

3,036 bridges built before 1951 in Iowa still in service today.

Bridges Built Before 1951

The United States has 3,036 bridges in Iowa 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.

Clear
Bridge State Condition Year Built Age (Years) ADT
SKUNK RIVER Iowa Poor 1876 150 11
BR DES MOINES RIVER Iowa Poor 1878 148 21
WAPSIPINICON RIVER Iowa Poor 1879 147 140
UPPER IOWA RIVER Iowa Poor 1880 146 26
DES MOINES ST Iowa Fair 1882 144 565
NORTH RACCOON RIVER Iowa Poor 1882 144 153
DD 81 Iowa Fair 1882 144 46
SMALL CREEK Iowa Poor 1886 140 3,705
TURKEY RIVER Iowa Fair 1889 137 4,755
BEAVER CREEK Iowa Poor 1890 136 21
INDIAN CR Iowa Poor 1890 136 299
BADGER CREEK Iowa Poor 1890 136 40
STREAM Iowa Poor 1892 134 69
WET CREEK Iowa Poor 1893 133 294
BUFFINGTON CREEK Iowa Poor 1893 133 11
MIDDLE BR WAPSINONOC CR Iowa Poor 1895 131 20
SMALL STREAM Iowa Fair 1895 131 45
E FORK OF DES MOINES Iowa Poor 1895 131 5
N CLANTON CREEK Iowa Poor 1895 131 5
JIM CREEK Iowa Poor 1895 131 20
WOLF CREEK Iowa Poor 1895 131 11
CASCADE LANDING Iowa Poor 1896 130 743
SALT CREEK Iowa Poor 1897 129 44
DES MOINES RIVER Iowa Poor 1899 127 50
DRAINAGE Iowa Poor 1900 126 232
DIVISION CREEK Iowa Fair 1900 126 3,776
DIVISION CREEK Iowa Fair 1900 126 555
DRAINAGE Iowa Fair 1900 126 95
LATERAL #77 DD #23 Iowa Fair 1900 126 2,081
S BR DRY RUN Iowa Poor 1900 126 1,049
RAILROAD CREEK Iowa Poor 1900 126 472
RAILROAD CREEK Iowa Poor 1900 126 377
RAILROAD CREEK Iowa Poor 1900 126 699
RAILROAD CREEK Iowa Poor 1900 126 803
DRAINAGE Iowa Poor 1900 126 1,073
OVER I.C.E. RR Iowa Poor 1900 126 358
GOOSE CREEK Iowa Fair 1900 126 1,680
CARDINAL CREEK Iowa Poor 1900 126 120
DUCK CREEK Iowa Poor 1900 126 120
DUCK CREEK Iowa Poor 1900 126 15,300
SKILLET CREEK Iowa Poor 1900 126 34
DRAINAGE Iowa Poor 1900 126 684
CLOSES CREEK Iowa Fair 1900 126 2,608
SCHOOL CREEK Iowa Fair 1900 126 908
ELK RUN CREEK Iowa Poor 1900 126 209
OVER ABANDON RR Iowa Poor 1900 126 387
OVRFLW SHELL ROCK RIVER Iowa Poor 1900 126 1,902
DRAINAGE Iowa Fair 1900 126 452
DRAINAGE Iowa Poor 1900 126 220
DRAINAGE Iowa Poor 1900 126 472

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