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
CUT BANK CREEK North Dakota Fair 1948 78 5
DRAINAGE DITCH North Dakota Fair 1948 78 22
WILLOW CREEK North Dakota Fair 1948 78 35
CREEK North Dakota Fair 1948 78 575
SOUTH BRANCH PARK RIVER North Dakota Poor 1948 78 10
MAPLE RIVER North Dakota Fair 1948 78 24
WHISKY CREEK North Dakota Fair 1948 78 30
TURTLE RIVER North Dakota Fair 1948 78 215
ANTELOPE CREEK North Dakota Fair 1948 78 80
ANTELOPE CREEK North Dakota Fair 1948 78 20
CREEK North Dakota Poor 1948 78 20
CREEK North Dakota Fair 1948 78 50
WINTERING RIVER North Dakota Poor 1948 78 25
ANTELOPE CREEK North Dakota Fair 1948 78 10
CREEK North Dakota Fair 1948 78 40
CROWN BUTTE CREEK North Dakota Fair 1948 78 405
DRAIN DITCH North Dakota Fair 1948 78 5
TONGUE RIVER North Dakota Fair 1948 78 10
NORTH BRANCH PARK RIVER North Dakota Fair 1948 78 5
NORTH BRANCH PARK RIVER North Dakota Fair 1948 78 2
TONGUE RIVER North Dakota Poor 1948 78 26
DRAIN DITCH North Dakota Fair 1948 78 24
TONGUE RIVER North Dakota Fair 1948 78 24
CREEK North Dakota Fair 1948 78 27
DITCH North Dakota Fair 1948 78 10
WILD RICE RIVER North Dakota Fair 1948 78 841
CREEK North Dakota Fair 1948 78 10
SOUTH BRANCH PARK RIVER North Dakota Fair 1948 78 10
FOREST RIVER North Dakota Poor 1948 78 5
CREEK North Dakota Good 1948 78 250
CREEK North Dakota Good 1948 78 190
BR. SQUARE BUTTE CREEK North Dakota Fair 1948 78 560
BRANCH CHARBONNEAU CREEK North Dakota Good 1948 78 340
CREEK North Dakota Fair 1948 78 1,200
HAY CREEK North Dakota Fair 1948 78 5,800
CUT BANK CREEK North Dakota Poor 1949 77 30
DRY COULEE DRAW North Dakota Fair 1949 77 25
BOUNDARY CREEK North Dakota Poor 1949 77 25
RED RIVER OF THE NORTH North Dakota Poor 1949 77 90
CREEK North Dakota Poor 1949 77 2
CREEK North Dakota Fair 1949 77 45
CREEK North Dakota Poor 1949 77 30
CREEK North Dakota Poor 1949 77 5
CREEK North Dakota Fair 1949 77 5
TURTLE RIVER North Dakota Fair 1949 77 25
BN RAILROAD North Dakota Fair 1949 77 25
CANNONBALL RIVER North Dakota Fair 1949 77 110
TONGUE RIVER North Dakota Fair 1949 77 27
CREEK North Dakota Fair 1949 77 283
CREEK North Dakota Poor 1949 77 59

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.