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Historic Bridges in South Dakota

1,118 bridges built before 1951 in South Dakota still in service today.

Bridges Built Before 1951

The United States has 1,118 bridges in South Dakota 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
CK South Dakota Fair 1930 96 25
CK South Dakota Poor 1930 96 35
EAST FORK VERMILLION RV South Dakota Poor 1930 96 55
CK South Dakota Poor 1930 96 290
BATTLE CK South Dakota Fair 1930 96 143
BATTLE CK South Dakota Poor 1930 96 15
BEAVER CK South Dakota Good 1930 96 69
TRIBUTARY TO BLIND CREEK South Dakota Fair 1930 96 48
TRIB. TO E BRULE CREEK South Dakota Fair 1930 96 242
EAST BRULE CREEK South Dakota Fair 1930 96 45
EAST BRULE CREEK South Dakota Fair 1930 96 239
CREEK South Dakota Fair 1930 96 24
MEDICINE CREEK South Dakota Poor 1930 96 55
TRIB. TO MEDICINE CREEK South Dakota Poor 1930 96 45
CREEK South Dakota Poor 1930 96 24
WOLF CREEK South Dakota Fair 1930 96 150
WOLF CREEK South Dakota Fair 1930 96 181
W. FORK OF VERMILLION RV South Dakota Fair 1930 96 24
LITTLE VERMILLION RIVER South Dakota Fair 1930 96 35
TRIB. TO E FORK VERM RV South Dakota Poor 1930 96 66
CREEK South Dakota Poor 1930 96 14
SPAIN DITCH South Dakota Poor 1930 96 35
CK South Dakota Poor 1930 96 33
EAST KILDEER CK. South Dakota Poor 1930 96 15
CK South Dakota Fair 1930 96 9
WEST REDSTONE CK South Dakota Poor 1930 96 148
REDSTONE CK South Dakota Poor 1930 96 50
REDSTONE CK South Dakota Fair 1930 96 52
ROCK CK South Dakota Poor 1930 96 20
ROCK CK South Dakota Poor 1930 96 228
ROCK CK South Dakota Poor 1930 96 20
WEST BR SKUNK CK South Dakota Poor 1930 96 13
RAILROAD SWITCHYARD South Dakota Fair 1930 96 10,700
SPRING CREEK South Dakota Poor 1930 96 45
ABANDON LINE RR South Dakota Poor 1930 96 1,000
TRIB TO RAPID CK South Dakota Poor 1930 96 15
TRIB TO CHEYENNE RIVER South Dakota Fair 1930 96 15
CREEK South Dakota Fair 1930 96 22
BIG SLOUGH CREEK South Dakota Poor 1930 96 22
BOIS DE SIOUX R South Dakota Poor 1930 96 200
MORRIS CK South Dakota Poor 1930 96 225
MORRIS CK South Dakota Fair 1930 96 253
REDSTONE CK South Dakota Fair 1930 96 175
JIM CK South Dakota Poor 1930 96 120
JIM CK South Dakota Fair 1930 96 56
CREEK South Dakota Poor 1930 96 34
CREEK South Dakota Poor 1930 96 55
CREEK South Dakota Poor 1930 96 55
SNAKE CREEK South Dakota Poor 1930 96 31
CREEK South Dakota Poor 1930 96 12

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