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Historic Bridges in Michigan

1,528 bridges built before 1951 in Michigan still in service today.

Bridges Built Before 1951

The United States has 1,528 bridges in Michigan 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
SOUTH BRANCH WHITE RIVER Michigan Fair 1950 76 1,950
S BRANCH PENTWATER RIVER Michigan Poor 1950 76 150
PICKEREL CREEK Michigan Fair 1950 76 4,901
BEAVER CREEK Michigan Fair 1950 76 1,956
S FORK OF N BR CASS RIV Michigan Fair 1950 76 300
MCDONALD DRAIN Michigan Poor 1950 76 201
ELK CREEK DRAIN Michigan Fair 1950 76 165
S BR CASS RIVER I/C DRN Michigan Fair 1950 76 290
MILL CREEK Michigan Fair 1950 76 300
BEAR CREEK Michigan Fair 1950 76 1,496
MENTHA DRAIN Michigan Poor 1950 76 420
I-94 Michigan Good 1950 76 9,840
I-94 Michigan Fair 1950 76 5,756
I-94 Michigan Fair 1950 76 2,559
I-94 Michigan Fair 1950 76 25,050
I-94 Michigan Fair 1950 76 3,500
M-10 Michigan Fair 1950 76 13,670
M-10 Michigan Fair 1950 76 26,900
M-10 Michigan Fair 1950 76 29,000
BLAKELY DRAIN Michigan Fair 1950 76 8,069
SWAN CREEK Michigan Poor 1950 76 5,924
BEAR RIVER Michigan Poor 1950 76 1,280
DOWLING CREEK Michigan Fair 1950 76 57
PLATTE RIVER Michigan Fair 1950 76 1,050
LITTLE MANISTEE RIVER Michigan Fair 1950 76 450
MIDDLE BR CLINTON RIVER Michigan Fair 1950 76 50
M BR PERE MARQUETTE RIV Michigan Fair 1950 76 400
BLACK CREEK Michigan Fair 1950 76 50

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