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
TRIB W BR LAC QUI PAR R Minnesota Good 1932 94 1,420
STREAM Minnesota Fair 1932 94 590
STONY RUN Minnesota Fair 1932 94 1,527
WELCOME CREEK Minnesota Fair 1932 94 540
JUD DITCH # 15 Minnesota Fair 1932 94 1,605
DITCH Minnesota Fair 1932 94 17,300
STREAM Minnesota Fair 1932 94 1,651
EIGHT MILE CREEK Minnesota Good 1932 94 700
W BR RAVEN STREAM Minnesota Fair 1932 94 55
MAPLE CREEK Minnesota Fair 1932 94 50
W FK LAC QUI PARLE RIVER Minnesota Fair 1933 93 1,750
BIG CANNON RIVER Minnesota Fair 1933 93 25
CEDAR RIVER Minnesota Fair 1933 93 2,750
OAK CREEK Minnesota Fair 1933 93 3,015
STREAM Minnesota Fair 1933 93 6,014
WATONWAN RIVER Minnesota Fair 1933 93 156
STREAM Minnesota Fair 1933 93 50
STREAM Minnesota Fair 1933 93 376
N FK WATONWAN RIVER Minnesota Fair 1933 93 20
CHANNEL Minnesota Fair 1933 93 420
JEWETT CREEK (CD # 19) Minnesota Fair 1933 93 150
STREAM Minnesota Fair 1934 92 830
REDWOOD RIVER Minnesota Good 1934 92 6,700
RED LAKE RIVER Minnesota Fair 1934 92 9,400
STREAM Minnesota Fair 1934 92 2,597
DITCH Minnesota Fair 1934 92 2,597
FIVE MILE CREEK Minnesota Fair 1934 92 1,137
PERCH CREEK Minnesota Fair 1934 92 135
N FK WATONWAN RIVER Minnesota Fair 1934 92 100
STEER CREEK Minnesota Fair 1934 92 793
STREAM Minnesota Fair 1934 92 712
STREAM Minnesota Good 1934 92 165
STREAM Minnesota Fair 1934 92 3,260
STREAM Minnesota Fair 1934 92 1,865
WOOD LAKE CREEK Minnesota Fair 1934 92 466
DITCH Minnesota Fair 1934 92 2,750
S FK ZUMBRO R (DAM) Minnesota Good 1934 92 499
PELICAN RIVER Minnesota Fair 1934 92 880
SPRING CREEK Minnesota Fair 1934 92 43
NETT LAKE RIVER Minnesota Good 1935 91 10
GRAND PORTAGE CREEK Minnesota Fair 1935 91 296
STREAM Minnesota Fair 1935 91 39
CLEARWATER RIVER Minnesota Fair 1935 91 59
ST AUGUSTA CREEK Minnesota Fair 1935 91 2,533
DITCH Minnesota Fair 1935 91 970
SAUK RIVER Minnesota Fair 1935 91 9,357
PARTRIDGE RIVER Minnesota Fair 1935 91 939
FOREST PRAIRIE CREEK Minnesota Fair 1935 91 625
LESTER RIVER Minnesota Fair 1935 91 11,700
E BR CHIPPEWA RIVER Minnesota Fair 1935 91 2,385

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.