Historic Bridges in Minnesota

1,035 bridges built before 1951 in Minnesota still in service today.

Bridges Built Before 1951

The United States has 1,035 bridges in Minnesota 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
MID FK CEDAR RIVER Minnesota Good 1948 78 1,008
STREAM Minnesota Fair 1948 78 751
TOAD RIVER Minnesota Good 1948 78 1,446
CO DITCH # 37 Minnesota Fair 1948 78 1,650
STREAM Minnesota Fair 1948 78 12,200
STREAM Minnesota Good 1948 78 1,350
STREAM Minnesota Fair 1948 78 92
STREAM Minnesota Fair 1948 78 900
S BR BUFFALO RIVER Minnesota Poor 1948 78 51
EVERTON CREEK Minnesota Fair 1949 77 28
LAKE SAKATAH CHANNEL Minnesota Fair 1949 77 2,853
STREAM Minnesota Fair 1949 77 5,227
STREAM Minnesota Fair 1949 77 1,967
STREAM Minnesota Fair 1949 77 1,050
W BR SUNRISE RIVER Minnesota Fair 1949 77 5,200
DM;IR RY Minnesota Fair 1949 77 25,343
BIG CANNON RIVER Minnesota Fair 1949 77 2,632
STREAM Minnesota Fair 1949 77 2,434
DWP RY (ABAN) Minnesota Fair 1949 77 12,672
STREAM Minnesota Fair 1949 77 1,950
STREAM Minnesota Good 1949 77 1,950
SPRING CREEK Minnesota Fair 1949 77 2,632
MINNESOTA RIVER Minnesota Fair 1949 77 206
RED RIVER OF THE NORTH Minnesota Poor 1949 77 135
ISLAND LAKE Minnesota Fair 1949 77 2,907
MACKENZIE CREEK Minnesota Fair 1949 77 7,961
DITCH Minnesota Fair 1949 77 1,514
DITCH Minnesota Fair 1949 77 1,047
STREAM Minnesota Fair 1949 77 596
BEAR ISLAND RIVER Minnesota Fair 1949 77 1,175
DRY CREEK Minnesota Poor 1949 77 110
CO DITCH # 32 Minnesota Fair 1949 77 75
RUSH CREEK Minnesota Poor 1949 77 7,500
STREAM Minnesota Fair 1949 77 60
STREAM Minnesota Fair 1949 77 530
STREAM Minnesota Fair 1949 77 380
STREAM Minnesota Fair 1949 77 620
JUD DITCH # 7 Minnesota Fair 1949 77 5
DITCH Minnesota Fair 1949 77 10
TURTLE CREEK Minnesota Poor 1949 77 50
STREAM Minnesota Fair 1950 76 1,223
MISSION CREEK Minnesota Fair 1950 76 1,285
ROSE CREEK Minnesota Fair 1950 76 2,533
EMBARRASS RIVER Minnesota Good 1950 76 1,324
NORWAY BROOK Minnesota Fair 1950 76 6,346
MISSISSIPPI RIVER Minnesota Fair 1950 76 9,200
REDWOOD RIVER Minnesota Fair 1950 76 9,500
ELK RIVER Minnesota Fair 1950 76 3,516
RED LAKE RIVER Minnesota Fair 1950 76 5,200
STREAM Minnesota Fair 1950 76 1,216

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.