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 HIGHWAY

Fair

Over: ELM RIVER

2 EAST 1 SOUTH BLANCHARD, Traill, ND

Built 1967 Load: 7.8 t ADT: 20

COUNTY ROAD

Fair

Over: WINTERING RIVER

3 EAST 6 NORTH KONGSBERG, McHenry, ND

Built 1936 Load: 7.9 t ADT: 25

COUNTY ROAD

Fair

Over: CREEK

6 WEST 1 NORTH OF GRAFTON, Walsh, ND

Built 1970 Load: 7.9 t ADT: 26

COUNTY HIGHWAY

Fair

Over: RUSH RIVER

1 WEST OF AMENIA, Cass, ND

Built 1955 Load: 8.2 t ADT: 65

COUNTY HIGHWAY

Fair

Over: BIG MUDDY CREEK

5 EAST 1 NORTH GLEN ULLIN, Morton, ND

Built 1916 Load: 8.2 t ADT: 20

98th Ave. SW

Fair

Over: CREEK

3 EAST 7 NORTH GLADSTONE, Stark, ND

Built 1900 Load: 8.2 t ADT: 20

IRRSR COUNTY HIWAY

Fair

Over: CEDER CREEK

16 S 6 W ST GERTRUDES, Grant, ND

Built 1940 Load: 8.3 t ADT: 20

COUNTY ROAD

Fair

Over: WILLOW CREEK

5 EAST 1 NORTH MOUNTAIN, Pembina, ND

Built 1946 Load: 8.3 t ADT: 5

COUNTY ROAD

Fair

Over: COULEE/DRAINAGE AREA

2 EAST 1 SOUTH NEWBURG, Bottineau, ND

Built 1935 Load: 8.4 t ADT: 25

236TH ST SE

Fair

Over: LONG LAKE CREEK

3 SOUTH OF MCKENZIE, Burleigh, ND

Built 1950 Load: 8.4 t ADT: 60

COUNTY HIGHWAY

Fair

Over: WINTERING RIVER

1 EAST 2 SOUTH BALFOUR, McHenry, ND

Built 1942 Load: 8.4 t ADT: 25

COUNTY HIGHWAY 138

Fair

Over: DRAINAGE AREA

4 WEST 5 SOUTH GLEN ULLIN, Morton, ND

Built 1973 Load: 8.4 t ADT: 75

49th St (CR 137)

Fair

Over: HEART RIVER

9 SOUTH 3 EAST OF JUDSON, Morton, ND

Built 1945 Load: 8.4 t ADT: 78

COUNTY HIGHWAY

Fair

Over: BRANCH ELM RIVER

1 EAST 1 SOUTH CLIFFORD, Traill, ND

Built 1936 Load: 8.4 t ADT: 20

COUNTY HIGHWAY

Fair

Over: LITTLE SO. PEMBINA RIVER

3 WEST 1 SOUTH OF VANG, Cavalier, ND

Built 1958 Load: 8.6 t ADT: 24

COUNTY HIGHWAY

Fair

Over: SOUTH BRANCH GOOSE RIVER

16 EAST 2 NORTH PICKERT, Steele, ND

Built 1939 Load: 8.6 t ADT: 2

COUNTY HIGHWAY

Fair

Over: SHEYENNE RIVER

8 NORTH OF FORT RANSOM, Ransom, ND

Built 1930 Load: 8.7 t ADT: 24

COUNTY HIGHWAY

Fair

Over: ANTELOPE CREEK

2 WEST 3 NORTH MOORETON, Richland, ND

Built 1981 Load: 8.7 t ADT: 20

COUNTY HIGHWAY

Fair

Over: CREEK

5 WEST 6 SOUTH OF SHIELDS, Grant, ND

Built 1938 Load: 8.8 t ADT: 10

131ST AVE SW

Fair

Over: HEART RIVER

1 WEST 2 NORTH BELFIELD, Stark, ND

Built 1951 Load: 8.8 t ADT: 25

127th Avenue SW

Fair

Over: BULL CREEK

3 EAST 9 SOUTH BELFIELD, Stark, ND

Built 1958 Load: 8.8 t ADT: 26

COUNTY HIGHWAY

Fair

Over: MURRAY DRAIN NO. 17

4 EAST 5 SOUTH MAYVILLE, Traill, ND

Built 1963 Load: 8.8 t ADT: 20

COUNTY ROAD

Fair

Over: CP RAILWAY

2 EAST 1 NORTH MAX, McLean, ND

Built 1928 Load: 9.0 t ADT: 25

COUNTY HIGHWAY

Fair

Over: INTERMITTENT STREAM

5 EAST 1 SOUTH MAYVILLE, Traill, ND

Built 1961 Load: 9.0 t ADT: 10

COUNTY ROAD

Fair

Over: WILLOW CREEK

5W 2N OF WILLOW CITY, Bottineau, ND

Built 1935 Load: 9.1 t ADT: 25

63rd St SE

Fair

Over: Long Lake Creek

12 EAST 1 NORTH HAZELTON, Emmons, ND

Built 1952 Load: 9.1 t ADT: 24

89th Ave SW

Fair

Over: CREEK

9 SOUTH 3 EAST OF MOTT, Hettinger, ND

Built 1946 Load: 9.1 t ADT: 20

55th Avenue SW

Fair

Over: ANTELOPE CREEK

2 WEST OF HAZEN, Mercer, ND

Built 1979 Load: 9.1 t ADT: 10

COUNTY HIGHWAY

Fair

Over: DRAIN DITCH

2 NORTH 1 WEST WALHALLA, Pembina, ND

Built 1979 Load: 9.1 t ADT: 10

131st Ave SW

Fair

Over: NORWEGIAN CREEK

3 SOUTH 1 WEST BELFIELD, Stark, ND

Built 1971 Load: 9.1 t ADT: 24

COUNTY HIGHWAY

Fair

Over: BUFFALO COULEE

4 EAST 1 SOUTH BUXTON, Traill, ND

Built 1920 Load: 9.1 t ADT: 20

COUNTY TRAIL

Fair

Over: CUT BANK CREEK

7 SOUTH 2 WEST OF UPHAM, McHenry, ND

Built 1963 Load: 9.2 t ADT: 5

COUNTY HIGHWAY

Fair

Over: GOOSE RIVER

1 WEST 1 NORTH PORTLAND, Traill, ND

Built 1885 Load: 9.2 t ADT: 20

COUNTY ROAD

Fair

Over: CREEK

9 SOUTH OF GRAFTON, Walsh, ND

Built 1933 Load: 9.2 t ADT: 2

COUNTY HIGHWAY

Fair

Over: CREEK

1 WEST 2 NORTH KATHRYN, Barnes, ND

Built 1920 Load: 9.3 t ADT: 5

COUNTY ROAD

Fair

Over: CREEK

2 WEST 2 NORTH EDINBURG, Walsh, ND

Built 1955 Load: 9.3 t ADT: 10

13TH ST NW

Fair

Over: CEDAR CREEK

2 EAST 11 NORTH REEDER, Adams, ND

Built 1936 Load: 9.4 t ADT: 10

75th ST SW

Fair

Over: CREEK

3 SOUTH OF NEW LEIPZIG, Grant, ND

Built 1965 Load: 9.4 t ADT: 5

COUNTY HIGHWAY

Fair

Over: HAY COULEE CREEK

5 NORTH OF GRANVILLE, McHenry, ND

Built 1955 Load: 9.4 t ADT: 25

COUNTY ROAD

Fair

Over: CREEK

2 WEST 1 SOUTH OF GRAFTON, Walsh, ND

Built 1915 Load: 9.4 t ADT: 24

COUNTY HIGHWAY

Fair

Over: BEAVER CREEK

10 EAST OF SHARON, Steele, ND

Built 1940 Load: 9.5 t ADT: 15

COUNTY HIGHWAY

Fair

Over: SO BRANCH FOREST RIVER

1 NORTH 12 WEST INKSTER, Grand Forks, ND

Built 1959 Load: 9.6 t ADT: 10

COUNTY HIGHWAY

Fair

Over: FOREST RIVER

7 EAST OF GRAFTON, Walsh, ND

Built 1977 Load: 9.6 t ADT: 24

COUNTY ROAD

Fair

Over: COLE CREEK

5 WEST 1 NORTH REYNOLDS, Grand Forks, ND

Built 1995 Load: 9.7 t ADT: 40

COUNTY ROAD

Fair

Over: TURTLE CREEK

6 EAST 7 NORTH WASHBURN, McLean, ND

Built 1947 Load: 9.7 t ADT: 48

COUNTY HIGHWAY

Fair

Over: MURRAY DRAIN NO. 17

1 EAST 5 SOUTH MAYVILLE, Traill, ND

Built 1931 Load: 9.7 t ADT: 20

COUNTY HIGHWAY

Fair

Over: ELM RIVER

2 EAST 2 NORTH GRANDIN, Traill, ND

Built 1937 Load: 9.7 t ADT: 130

31ST ST NE

Fair

Over: CEDAR CREEK

19 EAST 3 NORTH HETTINGER, Adams, ND

Built 2009 Load: 9.8 t ADT: 25

LAKE ROAD

Fair

Over: LAKE METIGOSHE

10 NORTH 4 EAST BOTTINEAU, Bottineau, ND

Built 1940 Load: 9.8 t ADT: 105

CR83

Fair

Over: CREEK

11 SOUTH 9 EAST OF JUDSON, Morton, ND

Built 1919 Load: 9.8 t ADT: 20

Showing 401-450 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.