Historic Bridges in Wisconsin

1,333 bridges built before 1951 in Wisconsin still in service today.

Bridges Built Before 1951

The United States has 1,333 bridges in Wisconsin 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
BR NARROWS CREEK Wisconsin Poor 1950 76 155
BR NARROWS CREEK Wisconsin Fair 1950 76 180
OTTER CREEK Wisconsin Fair 1950 76 28
THORNAPPLE RIVER Wisconsin Poor 1950 76 23
MULLET RIVER Wisconsin Fair 1950 76 50
WOOD CREEK Wisconsin Fair 1950 76 60
BR BIG RIB RIVER Wisconsin Good 1950 76 30
NEWCOMB VALLEY CREEK Wisconsin Poor 1950 76 20
BR FRENCH CREEK Wisconsin Poor 1950 76 94
BRUSH CREEK Wisconsin Fair 1950 76 94
W FK KICKAPOO RIVER Wisconsin Fair 1950 76 47
BISHOP BRANCH Wisconsin Fair 1950 76 205
BR KICKAPOO RIVER Wisconsin Poor 1950 76 23
ELK CREEK Wisconsin Fair 1950 76 47
SPRING COULEE CREEK Wisconsin Fair 1950 76 70
SPRING COULEE CREEK Wisconsin Fair 1950 76 20
TIMBER COULEE CREEK Wisconsin Fair 1950 76 20
BR SEYMOUR CREEK Wisconsin Fair 1950 76 282
JUG CREEK Wisconsin Fair 1950 76 47
BR BISHOP BRANCH Wisconsin Fair 1950 76 205
UNKNOWN WATERWAY Wisconsin Fair 1950 76 500
BR N BR MILWAUKEE RIVER Wisconsin Fair 1950 76 58
FOX RIVER Wisconsin Poor 1950 76
OCONOMOWOC RIVER Wisconsin Poor 1950 76 101
MENOMONEE RIVER Wisconsin Good 1950 76 99
FOX RIVER Wisconsin Fair 1950 76 1,400
FLUME CREEK Wisconsin Good 1950 76 35
BEAR CREEK Wisconsin Good 1950 76 51
FLUME CREEK Wisconsin Good 1950 76 135
S BR YELLOW RIVER Wisconsin Good 1950 76 1,600
ROCKY RUN Wisconsin Fair 1950 76 47
SQUAW CREEK Wisconsin Poor 1950 76 47
BR MILL CREEK Wisconsin Poor 1950 76 40

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.