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: KOLDOK WATERWAY

2 EAST OF ORISKA, Barnes, ND

Built 1983 Load: 31.2 t ADT: 40

COUNTY ROAD

Fair

Over: WINTERING RIVER

1 WEST 5 SOUTH OF BERGEN, McHenry, ND

Built 1975 Load: 31.2 t ADT: 25

COUNTY ROAD

Fair

Over: DRAIN DITCH

5 SOUTH 2 EAST CAVALIER, Pembina, ND

Built 1980 Load: 31.2 t ADT: 10

COUNTY ROAD

Fair

Over: PARK RIVER

2 EAST 1 NORTH OF GRAFTON, Walsh, ND

Built 1920 Load: 31.2 t ADT: 18

ND HIGHWAY 5

Fair

Over: MOUSE RIVER

5 EAST OF U.S. HWY 83 N, Bottineau, ND

Built 1957 Load: 31.3 t ADT: 730

26TH ST. NE

Fair

Over: BURNT CREEK

1 EAST 9 NORTH BISMARCK, Burleigh, ND

Built 1979 Load: 31.3 t ADT: 40

COUNTY HIGHWAY

Fair

Over: BRANCH OF MAPLE RIVER

3 WEST 2 SOUTH MAPLETON, Cass, ND

Built 1945 Load: 31.3 t ADT: 20

COUNTY HIGHWAY

Fair

Over: COULEE

2 NORTH 3 WEST THOMPSON, Grand Forks, ND

Built 1995 Load: 31.3 t ADT: 24

79th Avenue SW

Fair

Over: BRANCH KNIFE RIVER

9 EAST 4 NORTH RICHARDTON, Stark, ND

Built 1964 Load: 31.3 t ADT: 50

COUNTY HIGHWAY

Fair

Over: BUFFALO COULEE

1 EAST 2 SOUTH BUXTON, Traill, ND

Built 2016 Load: 31.3 t ADT: 80

227th Ave NE

Fair

Over: CREEK

4 WEST 6 SOUTH OF WING, Burleigh, ND

Built 1965 Load: 31.5 t ADT: 25

COUNTY ROAD 10

Fair

Over: DRAIN 14

4 EAST OF MAPLETON, Cass, ND

Built 1947 Load: 31.5 t ADT: 1,555

COUNTY HIGHWAY

Fair

Over: COULEE

1 WEST 8 SOUTH MANVEL, Grand Forks, ND

Built 1980 Load: 31.5 t ADT: 45

COUNTY ROAD

Fair

Over: BONNES COULEE

1 WEST OF VELVA, McHenry, ND

Built 1972 Load: 31.5 t ADT: 32

COUNTY HIGHWAY

Fair

Over: CUT BANK CREEK

2 WEST 1 NORTH OF UPHAM, McHenry, ND

Built 1979 Load: 31.5 t ADT: 25

CITY STREET

Fair

Over: OAK CREEK

7TH ST E BOTTINEAU, Bottineau, ND

Built 1977 Load: 31.6 t ADT: 1,450

COUNTY ROAD

Fair

Over: DOUGLAS CREEK

6 WEST 4 NORTH GARRISON, McLean, ND

Built 1968 Load: 31.6 t ADT: 40

COUNTY HIGHWAY

Fair

Over: CAMP CREEK

4 NORTH WILLISTON, Williams, ND

Built 1953 Load: 31.6 t ADT: 25

ND HIGHWAY 32

Fair

Over: CREEK

5 SOUTH OF I-94, Barnes, ND

Built 1967 Load: 31.7 t ADT: 590

COUNTY HIGHWAY

Fair

Over: RUSH RIVER

2 EAST OF AMENIA, Cass, ND

Built 1960 Load: 31.7 t ADT: 100

IRRFT COUNTY HIWAY

Fair

Over: SHEYENNE RIVER

8 EAST SHEYENNE, Eddy, ND

Built 1975 Load: 31.7 t ADT: 210

COUNTY HIGHWAY

Fair

Over: COULEE

1 EAST OF THOMPSON, Grand Forks, ND

Built 2003 Load: 31.7 t ADT: 40

52ND ST SW

Fair

Over: HEART BUTTE CREEK

18 NORTH 3 EAST OF ELGIN, Grant, ND

Built 1956 Load: 31.7 t ADT: 40

COUNTY ROAD

Fair

Over: WILLOW CREEK

5 EAST 1 NORTH MOUNTAIN, Pembina, ND

Built 1976 Load: 31.7 t ADT: 15

COUNTY HIGHWAY

Fair

Over: DRAIN DITCH

5 EAST 7 NORTH OF GRAFTON, Walsh, ND

Built 1988 Load: 31.7 t ADT: 24

COUNTY HIGHWAY

Fair

Over: PAINTED WOODS CREEK

6 NORTH TRENTON, Williams, ND

Built 1925 Load: 31.7 t ADT: 24

COUNTY HIGHWAY

Fair

Over: BIG COULEE

4 NORTH 3 WEST MADDOCK, Benson, ND

Built 1982 Load: 31.8 t ADT: 20

ND HIGHWAY 14

Fair

Over: MOUSE RIVER

4 SOUTH OF KRAMER, Bottineau, ND

Built 1961 Load: 31.8 t ADT: 370

169th Av SW

Fair

Over: Fivemile Creek

20 SOUTH 3 EAST MARMARTH, Bowman, ND

Built 1970 Load: 31.8 t ADT: 25

COUNTY HIGHWAY

Fair

Over: MID. BRANCH GOOSE RIVER

7 EAST 2 NORTH OF FINLEY, Steele, ND

Built 1972 Load: 31.8 t ADT: 24

COUNTY HIWAY

Fair

Over: SHEYENNE RIVER

9 SOUTH OF VALLEY CITY, Barnes, ND

Built 1967 Load: 31.9 t ADT: 580

COUNTY HIGHWAY

Fair

Over: SHEYENNE RIVER

2 NORTH OF HARWOOD, Cass, ND

Built 1996 Load: 31.9 t ADT: 240

COUNTY HIGHWAY

Fair

Over: COULEE

6 WEST 3 SOUTH NORTH, Grand Forks, ND

Built 1968 Load: 31.9 t ADT: 75

COUNTY HIGHWAY

Fair

Over: BOUNDARY CREEK

2 NORTH 2 WEST OF SOURIS, Bottineau, ND

Built 1994 Load: 32.1 t ADT: 25

COUNTY ROAD

Fair

Over: S BRANCH TURTLE RIVER

2 WEST 2 NORTH LARIMORE, Grand Forks, ND

Built 1993 Load: 32.1 t ADT: 30

COUNTY ROAD

Fair

Over: TURTLE RIVER

1 WEST MEKINOCK, Grand Forks, ND

Built 1919 Load: 32.1 t ADT: 10

COUNTY HIGHWAY

Fair

Over: BUFFALO CREEK

1 EAST OF FALKIRK, McLean, ND

Built 1964 Load: 32.1 t ADT: 80

COUNTY HIGHWAY

Fair

Over: BR. OF WILD RICE RIVER

2 EAST OF HAVANA, Sargent, ND

Built 1952 Load: 32.1 t ADT: 108

COUNTY HIGHWAY

Fair

Over: E FORK LITTLE MUDDY CRK

2 WEST 2 SOUTH ALAMO, Williams, ND

Built 1966 Load: 32.1 t ADT: 24

COUNTY ROAD

Fair

Over: CUT BANK CREEK

3 EAST 2 SOUTH SHERWOOD, Renville, ND

Built 1979 Load: 32.2 t ADT: 25

COUNTY HIGHWAY

Fair

Over: ANTELOPE CREEK

1 EAST OF GALCHUTT, Richland, ND

Built 1987 Load: 32.2 t ADT: 325

COUNTY ROAD

Fair

Over: CREEK

6 WEST 3 NORTH OF GRAFTON, Walsh, ND

Built 1999 Load: 32.2 t ADT: 10

US HIGHWAY 81

Fair

Over: CREEK

6 SOUTH OF ND 17, Walsh, ND

Built 1965 Load: 32.2 t ADT: 2,090

COUNTY HIGHWAY

Fair

Over: COULEE

1 EAST OF MEKINOCK, Grand Forks, ND

Built 1950 Load: 32.3 t ADT: 305

COUNTY HIGHWAY

Fair

Over: CREEK

2 WEST 1 SOUTH CASSELTON, Cass, ND

Built 1986 Load: 32.4 t ADT: 60

COUNTY HIGHWAY

Fair

Over: RUSH RIVER

5 EAST 3 SOUTH OF AMENIA, Cass, ND

Built 1998 Load: 32.4 t ADT: 20

INTERSTATE 29

Fair

Over: WILD RICE RIVER

6 NORTH OF ND 46, Cass, ND

Built 1972 Load: 32.4 t ADT: 3,800

COUNTY HIGHWAY

Fair

Over: CREEK

8 SOUTH 7 EAST CANDO, Towner, ND

Built 2020 Load: 32.4 t ADT: 20

SERVICE ROAD

Fair

Over: ROSE COULEE

2 SOUTH I94, Cass, ND

Built 1971 Load: 32.5 t ADT: 650

COUNTY HIGHWAY

Fair

Over: TURTLE RIVER

2 EAST 2 NORTH LARIMORE, Grand Forks, ND

Built 1990 Load: 32.5 t ADT: 170

Showing 1,401-1,450 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.