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

COUNTY ROAD

Fair

Over: CREEK

6 EAST OF BANTRY, McHenry, ND

Built 1950 Load: 2.4 t ADT: 35

COUNTY HIGHWAY

Fair

Over: WILD RICE RIVER

3 NORTH 1 EAST HANKINSON, Richland, ND

Built 1914 Load: 2.4 t ADT: 20

SECTION LINE ROAD

Fair

Over: STONE CREEK

1 SOUTH 3 WEST BOTTINEAU, Bottineau, ND

Built 1950 Load: 2.5 t ADT: 10

COUNTY HIGHWAY

Fair

Over: CREEK

5 NORTH OF LARSON, Burke, ND

Built 1969 Load: 2.6 t ADT: 50

COUNTY HIGHWAY

Fair

Over: CREEK

6 N 6 W OF GOLDEN VALLEY, Mercer, ND

Built 1950 Load: 2.7 t ADT: 10

GRAVEL ROAD

Fair

Over: BEAVER CREEK

2 NORTH 2 WEST OF SYDNEY, Stutsman, ND

Built 1927 Load: 2.7 t ADT: 10

5TH ST SW

Fair

Over: KNIFE RIVER

4 WEST 1 NORTH STANTON, Mercer, ND

Built 1917 Load: 2.9 t ADT: 5

COUNTY HIGHWAY

Fair

Over: DEEP CREEK

9 WEST 4 SOUTH MARSHALL, Dunn, ND

Built 1957 Load: 3.1 t ADT: 3

COUNTY ROAD

Fair

Over: EGG CREEK

11 EAST 3 SOUTH DEERING, McHenry, ND

Built 1935 Load: 3.4 t ADT: 25

COUNTY

Fair

Over: DRAIN DITCH

1 WEST OF BOWESMONT, Pembina, ND

Built 1976 Load: 3.4 t ADT: 24

38TH ST

Fair

Over: DRAINAGE AREA

3 NORTH OF GLEN ULLIN, Morton, ND

Built 1967 Load: 3.5 t ADT: 20

COUNTY ROAD

Fair

Over: CREEK

1 EAST 6 NORTH OF ADAMS, Walsh, ND

Built 1950 Load: 3.5 t ADT: 10

COUNTY HIGHWAY

Fair

Over: MID. BRANCH GOOSE RIVER

10 EAST OF FINLEY, Steele, ND

Built 1940 Load: 3.6 t ADT: 10

COUNTY ROAD

Fair

Over: MIDDLE BRANCH PARK RIVER

6 WEST 3 NORTH OF GRAFTON, Walsh, ND

Built 1956 Load: 3.7 t ADT: 10

COUNTY HIGHWAY

Fair

Over: WILD RICE RIVER

1 WEST 1 SOUTH GREAT BEND, Richland, ND

Built 1920 Load: 3.8 t ADT: 20

COUNTY HIGHWAY

Fair

Over: DRAINAGE DITCH

4 E 1 S OF WILLOW CITY, Bottineau, ND

Built 1947 Load: 3.9 t ADT: 35

COUNTY HIGHWAY

Fair

Over: CREEK

2 NORTH 4 EAST THOMPSON, Grand Forks, ND

Built 1968 Load: 3.9 t ADT: 45

COUNTY ROAD

Fair

Over: DEEP RIVER

5 WEST 1 NORTH OF UPHAM, McHenry, ND

Built 1965 Load: 3.9 t ADT: 5

COUNTY ROAD

Fair

Over: DRAIN DITCH

2 EAST 1 NORTH MOUNTAIN, Pembina, ND

Built 1960 Load: 4.1 t ADT: 24

COUNTY HIGHWAY

Fair

Over: MID. BRANCH GOOSE RIVER

3 NORTH 5 EAST OF FINLEY, Steele, ND

Built 1972 Load: 4.1 t ADT: 40

COUNTY ROAD

Fair

Over: CREEK

7 EAST 2 SOUTH PARK RIVER, Walsh, ND

Built 1935 Load: 4.1 t ADT: 26

COUNTY ROAD

Fair

Over: CREEK

4 WEST 2 NORTH OF GRAFTON, Walsh, ND

Built 1925 Load: 4.1 t ADT: 19

SECTION LINE ROAD

Fair

Over: CUT BANK CREEK

6 WEST OF ECKMAN, Bottineau, ND

Built 1948 Load: 4.2 t ADT: 5

SECTION LINE TRAIL

Fair

Over: MID. BR. DOUGLAS CREEK

6.3 WEST 1 SOUTH GARRISON, McLean, ND

Built 1940 Load: 4.2 t ADT: 5

31ST ST

Fair

Over: DRAINAGE AREA

10 WEST 8 NORTH NEW SALEM, Morton, ND

Built 1972 Load: 4.2 t ADT: 10

COUNTY HIGHWAY

Fair

Over: CREEK

4 NORTH 12 WEST NORTHWOOD, Grand Forks, ND

Built 1982 Load: 4.4 t ADT: 10

COUNTY ROAD

Fair

Over: SO BRANCH FOREST RIVER

8 WEST 1 NORTH INKSTER, Grand Forks, ND

Built 1954 Load: 4.4 t ADT: 15

COUNTY HIGHWAY

Fair

Over: CREEK

9 SOUTH 3 EAST OF LEITH, Grant, ND

Built 1938 Load: 4.4 t ADT: 5

COUNTY HIGHWAY

Fair

Over: LITTLE SO. PEMBINA RIVER

2 SOUTH OF MT. CARMEL, Cavalier, ND

Built 1975 Load: 4.5 t ADT: 20

COUNTY ROAD

Fair

Over: CREEK

8 SOUTH 3 WEST DUNSEITH, Rolette, ND

Built 1940 Load: 4.5 t ADT: 10

COUNTY ROAD

Fair

Over: CREEK

6 EAST 2 NORTH PARK RIVER, Walsh, ND

Built 1975 Load: 4.5 t ADT: 30

COUNTY ROAD

Fair

Over: CUT BANK CREEK

3 EAST 14 NORTH DEERING, McHenry, ND

Built 1935 Load: 4.6 t ADT: 5

COUNTY ROAD

Fair

Over: WINTERING RIVER

4 EAST 4 NORTH KARLSRUHE, McHenry, ND

Built 1951 Load: 4.7 t ADT: 5

SECTION LINE TRAIL

Fair

Over: MID. BR. DOUGLAS CREEK

6 WEST 2 NORTH GARRISON, McLean, ND

Built 1938 Load: 4.8 t ADT: 10

COUNTY HIGHWAY

Fair

Over: WEST SNOWFLAKE CREEK

HANNAH, Cavalier, ND

Built 1963 Load: 4.9 t ADT: 59

COUNTY HIGHWAY

Fair

Over: WINTERING RIVER

3 EAST 2 SOUTH OF BALFOUR, McHenry, ND

Built 1955 Load: 4.9 t ADT: 25

COUNTY HIGHWAY

Fair

Over: CREEK

7 EAST 2 NORTH OF BLABON, Steele, ND

Built 1938 Load: 4.9 t ADT: 10

COUNTY ROAD

Fair

Over: DRAIN DITCH

3 WEST 6 SOUTH OF GRAFTON, Walsh, ND

Built 1979 Load: 4.9 t ADT: 5

COUNTY ROAD

Fair

Over: SLOUGH

1 WEST 1 NORTH OF TOWNER, McHenry, ND

Built 1934 Load: 5.2 t ADT: 5

COUNTY HIGHWAY 83

Fair

Over: HEART RIVER

4 SOUTH 7 EAST OF JUDSON, Morton, ND

Built 1945 Load: 5.2 t ADT: 30

COUNTY HIGHWAY

Fair

Over: MAPLE RIVER

5 EAST 2 NORTH MAPLETON, Cass, ND

Built 1943 Load: 5.3 t ADT: 20

COUNTY ROAD

Fair

Over: TURTLE RIVER

WEST EDGE MEKINOCK, Grand Forks, ND

Built 1970 Load: 5.3 t ADT: 20

COUNTY HIGHWAY

Fair

Over: ANTELOPE CREEK

3 WEST 8 SOUTH OF COLFAX, Richland, ND

Built 1979 Load: 5.4 t ADT: 20

COUNTY ROAD

Fair

Over: DIPPLE DRAIN DITCH

7 EAST 2 SOUTH OF GRAFTON, Walsh, ND

Built 1955 Load: 5.4 t ADT: 10

54TH AVE SW

Fair

Over: HEART RIVER

9 NORTH OF CARSON, Grant, ND

Built 1944 Load: 5.5 t ADT: 110

40th St

Fair

Over: CREEK

5 WEST 1 SOUTH NEW SALEM, Morton, ND

Built 1940 Load: 5.5 t ADT: 20

COUNTY HIGHWAY 83

Fair

Over: CREEK

6 EAST OF JUDSON, Morton, ND

Built 1948 Load: 5.5 t ADT: 40

26TH AVE

Fair

Over: CREEK

14 S 3 W OF ST ANTHONY, Morton, ND

Built 1919 Load: 5.5 t ADT: 10

COUNTY HIGHWAY

Fair

Over: SHEYENNE RIVER

8 SOUTH 1 WEST LEONARD, Richland, ND

Built 1913 Load: 5.5 t ADT: 5

COUNTY ROAD

Fair

Over: MOUSE RIVER

8 EAST OF BANTRY, McHenry, ND

Built 1982 Load: 5.6 t ADT: 35

Showing 301-350 of 4,242 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.