Historic Bridges in North Dakota

685 bridges built before 1951 in North Dakota still in service today.

Bridges Built Before 1951

The United States has 685 bridges in North 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
PARK RIVER North Dakota Fair 1930 96 10
PARK RIVER North Dakota Fair 1930 96 10
NORTH BRANCH PARK RIVER North Dakota Poor 1930 96 10
DRAIN DITCH North Dakota Poor 1930 96 10
COW CREEK North Dakota Poor 1930 96 20
COW CREEK North Dakota Poor 1930 96 24
E. FORK LITTLE CREEK North Dakota Fair 1930 96 25
STONY CREEK North Dakota Poor 1930 96 24
FOUR MILE CREEK North Dakota Fair 1930 96 750
CEDAR CREEK North Dakota Fair 1931 95 35
MCKENZIE SLOUGH North Dakota Fair 1931 95 745
MURRAY DRAIN NO. 17 North Dakota Fair 1931 95 20
CREEK North Dakota Poor 1931 95 490
CREEK North Dakota Fair 1931 95 160
CREEK North Dakota Fair 1931 95 230
CREEK North Dakota Fair 1931 95 220
CREEK North Dakota Fair 1931 95 210
LEGAL DRAIN 40 North Dakota Fair 1931 95 21,900
CREEK North Dakota Good 1931 95 900
CREEK North Dakota Fair 1931 95 510
CREEK North Dakota Poor 1931 95 640
HEART RIVER North Dakota Fair 1931 95 9,940
COUNTY DRAIN NO 3 North Dakota Good 1931 95 5,400
BR. OF CART CREEK North Dakota Fair 1931 95 550
CREEK North Dakota Fair 1932 94 5
CREEK BED North Dakota Fair 1932 94 2
CREEK BED North Dakota Poor 1932 94 25
CREEK BED North Dakota Fair 1932 94 25
SPRING CREEK North Dakota Fair 1932 94 25
PETERS CREEK North Dakota Poor 1932 94 20
EGG CREEK North Dakota Poor 1932 94 5
BEAVER CREEK North Dakota Poor 1932 94 24
INTERMITTENT STREAM North Dakota Fair 1932 94 20
PARK RIVER North Dakota Fair 1932 94 19
FOREST RIVER North Dakota Poor 1932 94 10
TURTLE RIVER North Dakota Fair 1932 94 150
COYOTE CREEK North Dakota Fair 1932 94 330
JAMES RIVER North Dakota Fair 1932 94 490
CREEK North Dakota Fair 1932 94 450
CREEK North Dakota Fair 1932 94 290
COUNTY DRAINAGE DITCH North Dakota Fair 1932 94 510
SWEET BRIAR CREEK North Dakota Fair 1932 94 930
CREEK North Dakota Good 1932 94 290
LONG CREEK North Dakota Poor 1933 93 35
CREEK North Dakota Fair 1933 93 375
ELK CREEK North Dakota Fair 1933 93 20
CREEK North Dakota Fair 1933 93 10
CREEK North Dakota Fair 1933 93 2
OTTERTAIL CREEK North Dakota Poor 1933 93 25
BEAVER CREEK North Dakota Poor 1933 93 24

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.