State profile · Above national median SD

North Dakota bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in North Dakota — drawn straight from the FHWA National Bridge Inventory.

4,242
Public bridges
39.7%
Good condition
10.8%
Poor condition
10.8%
Structurally deficient

Total Bridges

4,242

Public highway bridges in North Dakota

Good Condition

39.7%

1,685 bridges rated 7-9

-10.3pp vs 50% benchmark

Poor Condition

10.8%

460 bridges rated 0-4

Structurally Deficient

10.8%

460 bridges flagged for repair priority

3.9pp vs national avg 7.0%

North Dakota vs national bridge condition

North Dakota — Good condition share 39.7%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

North Dakota — Structurally deficient share 36.1%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — North Dakota (FHWA NBI)

North Dakota39.72182932578972%42.5978312116926%10.843941537010844%10.843941537010844%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — North Dakota (FHWA NBI)

Counties (53)

Adams 45 Barnes 79 Benson 40 Billings 60 Bottineau 120 Bowman 68 Burke 29 Burleigh 113 Cass 369 Cavalier 66 Dickey 43 Divide 13 Dunn 74 Eddy 27 Emmons 67 Foster 19 Golden Valley 34 Grand Forks 334 Grant 60 Griggs 21 Hettinger 64 Kidder 10 LaMoure 60 Logan 13 McHenry 112 McIntosh 11 McKenzie 131 McLean 57 Mercer 72 Morton 271 Mountrail 27 Nelson 23 Oliver 24 Pembina 203 Pierce 5 Ramsey 48 Ransom 35 Renville 24 Richland 197 Rolette 18 Sargent 30 Sheridan 8 Sioux 22 Slope 41 Stark 157 Steele 94 Stutsman 78 Towner 58 Traill 151 Walsh 253 Ward 123 Wells 41 Williams 100

North Dakota vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below North Dakota on the same metric.

02

Alaska

10.12% top marginal rate
Structure
Progressive
Burden @ $100K
$909

42

Pennsylvania

10.50% top marginal rate
Structure
Progressive
Burden @ $100K
$14,867
Selected

38

North Dakota

10.84% top marginal rate
Structure
Progressive
Burden @ $100K
$4,242

22

Louisiana

11.00% top marginal rate
Structure
Progressive
Burden @ $100K
$12,699

72

Puerto Rico

11.98% top marginal rate
Structure
Progressive
Burden @ $100K
$2,387

Bridges Needing Most Attention in North Dakota

Six lowest-condition bridges in North Dakota, ranked by composite NBI rating. Each is inspected at least every 24 months.

TRAIL

Structurally Deficient

Over: CYPRESS CREEK

5 NORTH 1 EAST OF CALVIN, Cavalier, ND

Built 1950 Load: 0.9 t ADT: 2

COUNTY HIGHWAY

Poor

Over: CREEK

2 WEST 6 SOUTH OF VANG, Cavalier, ND

Built 1953 Load: 0.9 t ADT: 2

COUNTY ROAD

Structurally Deficient

Over: JAMES RIVER

NORTH OF LAMOURE, LaMoure, ND

Built 1910 Load: 1.1 t ADT: 50

COUNTY HIGHWAY

Poor

Over: ANTELOPE CREEK

2 SOUTH 3 WEST DWIGHT, Richland, ND

Built 1920 Load: 1.1 t ADT: 20

COUNTY HIGHWAY

Structurally Deficient

Over: LITTLE MUDDY RIVER

2 WEST 3 SOUTH ALAMO, Williams, ND

Built 1920 Load: 1.5 t ADT: 24

COUNTY HIGHWAY

Structurally Deficient

Over: LITTLE MUDDY RIVER

1 EAST 3 SOUTH ALAMO, Williams, ND

Built 1920 Load: 1.5 t ADT: 20

All Bridges in North Dakota

139TH AVE NE

Structurally Deficient

Over: PARK RIVER

1 WEST OF HOOPLE, Walsh, ND

Built 1940 Load: 8.7 t ADT: 19

COUNTY HIGHWAY

Structurally Deficient

Over: MAPLE RIVER

3 WEST 4 NORTH OF ALICE, Cass, ND

Built 1966 Load: 8.8 t ADT: 10

COUNTY TRAIL

Structurally Deficient

Over: CREEK

7 WEST 5 SOUTH OF GRAFTON, Walsh, ND

Built 1921 Load: 8.9 t ADT: 10

COUNTY HIGHWAY

Structurally Deficient

Over: SOUTH BRANCH PARK RIVER

1 EAST 6 SOUTH OSNABROCK, Cavalier, ND

Built 1938 Load: 9.0 t ADT: 25

COUNTY ROAD

Structurally Deficient

Over: CUT BANK CREEK

6 NORTH 3 EAST LANSFORD, Bottineau, ND

Built 1949 Load: 9.1 t ADT: 30

COUNTY HIGHWAY

Structurally Deficient

Over: WILD RICE RIVER

3 SOUTH 1 WEST WYNDMERE, Richland, ND

Built 1917 Load: 9.2 t ADT: 20

COUNTY HIGHWAY

Structurally Deficient

Over: CUT BANK CREEK

7 WEST 1 NORTH OF UPHAM, McHenry, ND

Built 1926 Load: 9.3 t ADT: 25

COUNTY HIGHWAY

Structurally Deficient

Over: CREEK

5 EAST 4 NORTH OF WALES, Cavalier, ND

Built 1952 Load: 9.4 t ADT: 5

69TH ST SE

Structurally Deficient

Over: SHEYENNE RIVER

2 SOUTH OF LISBON, Ransom, ND

Built 1950 Load: 9.4 t ADT: 38

COUNTY ROAD

Structurally Deficient

Over: BANK CREEK

3 SOUTH OF UPHAM, McHenry, ND

Built 1946 Load: 9.5 t ADT: 25

COUNTY ROAD

Structurally Deficient

Over: TONGUE RIVER

6 EAST 1 NORTH BATHGATE, Pembina, ND

Built 1921 Load: 9.7 t ADT: 24

COUNTY HIGHWAY

Structurally Deficient

Over: JAMES RIVER

2 WEST 1 SOUTH GRACE CITY, Foster, ND

Built 1925 Load: 9.8 t ADT: 5

FIELD DRIVE

Structurally Deficient

Over: ENGLISH COULEE DRAIN

4 WEST OF GRAND FORKS, Grand Forks, ND

Built 1919 Load: 10.0 t ADT: 1

101st Ave SW

Structurally Deficient

Over: SPRING CREEK

1 N. 1 E. OF REGENT, Hettinger, ND

Built 1936 Load: 10.4 t ADT: 10

COUNTY HIGHWAY

Structurally Deficient

Over: CHARBONNEAU CREEK

1 N 3 EAST CARTWRIGHT, McKenzie, ND

Built 1962 Load: 10.7 t ADT: 20

11TH STREET NORTH

Structurally Deficient

Over: CEDAR CREEK

10 NORTH 9 WEST HETTINGER, Adams, ND

Built 1930 Load: 11.1 t ADT: 5

IRRFT COUNTY HIWAY

Structurally Deficient

Over: SHEYENNE RIVER

1 EAST 3 SOUTH WARWICK, Eddy, ND

Built 1939 Load: 11.1 t ADT: 5

83RD AVE SW

Structurally Deficient

Over: BRANCH OF KNIFE RIVER

3 EAST 7 NORTH RICHARDTON, Stark, ND

Built 1914 Load: 11.1 t ADT: 20

COUNTY HIGHWAY

Structurally Deficient

Over: TURTLE RIVER

EAST 2 NORTH MANVEL, Grand Forks, ND

Built 1958 Load: 11.2 t ADT: 25

COUNTY ROAD

Structurally Deficient

Over: MIDDLE BRANCH PARK RIVER

1 WEST 7 NORTH PARK RIVER, Walsh, ND

Built 1917 Load: 11.4 t ADT: 5

COUNTY HIGHWAY

Structurally Deficient

Over: CREEK

7 EAST 2 NORTH JOHNSTOWN, Grand Forks, ND

Built 1950 Load: 11.8 t ADT: 20

COUNTY HIGHWAY

Structurally Deficient

Over: CREEK

1 SOUTH SAWYER, Ward, ND

Built 1955 Load: 12.1 t ADT: 25

COUNTY HIGHWAY

Structurally Deficient

Over: NORTH BRANCH GOOSE RIVER

6 NORTH OF PORTLAND, Traill, ND

Built 1950 Load: 12.6 t ADT: 10

40TH AVE

Structurally Deficient

Over: CREEK

11 NORTH 1 WEST FLASHER, Morton, ND

Built 1942 Load: 12.7 t ADT: 30

COUNTY HIGHWAY

Structurally Deficient

Over: LITTLE MUDDY RIVER

9 SOUTH CORINTH, Williams, ND

Built 1935 Load: 12.7 t ADT: 24

COUNTY HIGHWAY

Structurally Deficient

Over: GOOSE RIVER

5 EAST 2 SOUTH MAYVILLE, Traill, ND

Built 1903 Load: 12.9 t ADT: 40

COUNTY HIGHWAY

Structurally Deficient

Over: PARK RIVER

1 WEST 6 SOUTH OSNABROCK, Cavalier, ND

Built 1982 Load: 13.0 t ADT: 24

COUNTY HIGHWAY

Structurally Deficient

Over: WILD RICE RIVER

3 EAST 2 NORTH COLFAX, Richland, ND

Built 1956 Load: 13.0 t ADT: 20

53RD ST

Structurally Deficient

Over: LITTLE HEART RIVER

2 NORTH 2 WEST ST ANTHONY, Morton, ND

Built 1960 Load: 13.1 t ADT: 10

COUNTY ROAD

Structurally Deficient

Over: CREEK

5 WEST 10 SOUTH GRAFTON, Walsh, ND

Built 1927 Load: 13.3 t ADT: 5

COUNTY ROAD

Structurally Deficient

Over: DES LACS RIVER

CITY OF DONNYBROOK, Ward, ND

Built 1967 Load: 13.3 t ADT: 80

1st St NE

Structurally Deficient

Over: FLAT CREEK

SOUTH EDGE OF HAYNES, Adams, ND

Built 1936 Load: 13.7 t ADT: 10

SECTION LINE ROAD

Structurally Deficient

Over: CREEK BED

2 EAST 5 SOUTH BOTTINEAU, Bottineau, ND

Built 1950 Load: 13.7 t ADT: 10

Main Avenue

Structurally Deficient

Over: LITTLE KNIFE RIVER

1 EAST OF HEBRON, Morton, ND

Built 1955 Load: 13.7 t ADT: 130

COUNTY HIGHWAY

Structurally Deficient

Over: SOUTH BRANCH GOOSE RIVER

8 SOUTH OF HATTON, Traill, ND

Built 1986 Load: 13.9 t ADT: 20

COUNTY ROAD

Structurally Deficient

Over: CREEK

2 WEST OF FORDVILLE, Walsh, ND

Built 1940 Load: 13.9 t ADT: 300

COUNTY HIGHWAY

Structurally Deficient

Over: NORTH BRANCH ELM RIVER

2 EAST 6 SOUTH HILLSBORO, Traill, ND

Built 1950 Load: 14.1 t ADT: 20

COUNTY HIGHWAY

Structurally Deficient

Over: BEAVER CREEK

1 WEST 8 SOUTH NAPOLEON, Logan, ND

Built 1940 Load: 14.3 t ADT: 5

25TH AVE

Structurally Deficient

Over: OTTER CREEK

7 NORTH 13 EAST OF JUDSON, Morton, ND

Built 1945 Load: 14.3 t ADT: 15

COUNTY ROAD

Structurally Deficient

Over: WILLOW CREEK

3 WEST 2 NORTH ST THOMAS, Pembina, ND

Built 1979 Load: 14.3 t ADT: 24

COUNTY ROAD

Structurally Deficient

Over: DITCH

5 EAST 6 NORTH OF GRAFTON, Walsh, ND

Built 1977 Load: 14.4 t ADT: 10

COUNTY HWY

Structurally Deficient

Over: BIG COULEE

3 SOUTH OF US 2, Benson, ND

Built 1955 Load: 14.5 t ADT: 200

COUNTY ROAD

Structurally Deficient

Over: CUT BANK CREEK

10 WEST 2 NORTH UPHAM, McHenry, ND

Built 1937 Load: 15.6 t ADT: 5

COUNTY HIGHWAY

Structurally Deficient

Over: CREEK

2 SOUTH 2 EAST NORTHGATE, Burke, ND

Built 1950 Load: 16.0 t ADT: 20

COUNTY HIGHWAY

Structurally Deficient

Over: WILD RICE RIVER

1 SOUTH OF MANTADOR, Richland, ND

Built 1978 Load: 17.1 t ADT: 20

COUNTY HIGHWAY

Structurally Deficient

Over: CREEK

2 SOUTH 1 WEST KEMPTON, Grand Forks, ND

Built 1949 Load: 17.4 t ADT: 30

COUNTY HIGHWAY

Structurally Deficient

Over: LITTLE MUDDY RIVER

4 EAST 3 SOUTH ALAMO, Williams, ND

Built 1914 Load: 17.4 t ADT: 20

COUNTY HIGHWAY

Structurally Deficient

Over: BR. OF WILD RICE RIVER

1 NORTH 2 WEST OF HAVANA, Sargent, ND

Built 1950 Load: 17.6 t ADT: 10

53RD AVE SW

Structurally Deficient

Over: OTTER CREEK

9 WEST OF HANNOVER, Oliver, ND

Built 1960 Load: 18.1 t ADT: 45

COUNTY HIGHWAY

Structurally Deficient

Over: ELM RIVER

1 WEST OF KELSO, Traill, ND

Built 1940 Load: 18.2 t ADT: 40

Showing 4,151-4,200 of 4,242 bridges

Related

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Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.