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

INTERSTATE 29

Fair

Over: WILD RICE RIVER

7 NORTH OF ND 11, Richland, ND

Built 1973 Load: 43.8 t ADT: 2,275

COUNTY HIWAY 2004

Fair

Over: SHEYENNE RIVER

13 NORTH COOPERSTOWN, Griggs, ND

Built 1979 Load: 43.9 t ADT: 51

COUNTY HIGHWAY

Fair

Over: TIMBER CREEK

9 NORTH 4 EAST ALEXANDER, McKenzie, ND

Built 2002 Load: 44.0 t ADT: 20

ND HIGHWAY 22

Fair

Over: HEART RIVER

SOUTH OF DICKINSON, Stark, ND

Built 1931 Load: 44.0 t ADT: 9,940

9TH AVE SE

Fair

Over: SPRING CREEK

2 EAST 12 SOUTH HAZELTON, Emmons, ND

Built 1950 Load: 44.1 t ADT: 50

COUNTY ROAD

Fair

Over: MAPLE RIVER

3 EAST 2 SOUTH EDGELEY, LaMoure, ND

Built 1980 Load: 44.1 t ADT: 20

ND HIGHWAY 1806

Fair

Over: TOBACCO GARDEN CREEK

10 NORTH ND 23, McKenzie, ND

Built 1979 Load: 44.1 t ADT: 180

ND HIGHWAY 8

Fair

Over: BRANCH OF KNIFE RIVER

10 NORTH JCT I-94, Stark, ND

Built 1960 Load: 44.1 t ADT: 400

ND HIGHWAY 32

Fair

Over: TONGUE RIVER

1 SOUTH ND 5, Pembina, ND

Built 1986 Load: 44.2 t ADT: 470

COUNTY HIGHWAY

Fair

Over: SALT WATER COULEE

5 EAST 1 NORTH EMERADO, Grand Forks, ND

Built 2002 Load: 44.3 t ADT: 60

370th Ave NE

Fair

Over: PAINTED WOODS CREEK

3 WEST 4 NORTH OF REGAN, Burleigh, ND

Built 1981 Load: 44.4 t ADT: 50

US HIGHWAY 2 & 52

Fair

Over: CP RAILWAY

NE OF JCT 2 & 52, Ward, ND

Built 1981 Load: 44.4 t ADT: 4,150

ND HIGHWAY 13

Fair

Over: DRAIN 18

4 WEST OF WAHPETON, Richland, ND

Built 1973 Load: 44.5 t ADT: 6,300

US HIGHWAY 2

Fair

Over: BN RAILROAD

CITY OF RAY, Williams, ND

Built 1997 Load: 44.5 t ADT: 915

ND HIGHWAY 1804

Fair

Over: B N RAILROAD

3 EAST OF US 2, Williams, ND

Built 1987 Load: 44.7 t ADT: 1,900

ND HIGHWAY 1

Fair

Over: LITTLE SO. PEMBINA RIVER

12 NORTH OF ND 5, Cavalier, ND

Built 1980 Load: 44.8 t ADT: 310

ND HIGHWAY 30

Fair

Over: SHEYENNE RIVER

12 SOUTH OF ND 19, Benson, ND

Built 1981 Load: 44.9 t ADT: 350

ND HIGHWAY 14

Fair

Over: STONE CREEK

1 SOUTH OF KRAMER, Bottineau, ND

Built 1961 Load: 44.9 t ADT: 390

COUNTY HIGHWAY

Fair

Over: SALT WATER COULEE

1 EAST EMERADO, Grand Forks, ND

Built 1994 Load: 44.9 t ADT: 19

INTERSTATE 29

Fair

Over: ROSE COULEE

2 SOUTH OF I-94, Cass, ND

Built 1973 Load: 45.0 t ADT: 6,950

INTERSTATE 29

Fair

Over: ROSE COULEE

2 SOUTH OF I-94, Cass, ND

Built 1973 Load: 45.0 t ADT: 6,950

COUNTY HIGHWAY

Fair

Over: CASS COUNTY DRAINS 19&32

5 EAST 2 NORTH GARDNER, Cass, ND

Built 1975 Load: 45.2 t ADT: 20

COUNTY HIGHWAY

Fair

Over: WILD RICE RIVER

4 SOUTH 1.5 EAST CAYUGA, Sargent, ND

Built 1967 Load: 45.2 t ADT: 20

COUNTY HIGHWAY

Fair

Over: CASS COUNTY DRAIN 13

5 EAST 2 SOUTH GARDNER, Cass, ND

Built 1940 Load: 45.3 t ADT: 20

ND HIGHWAY 20

Fair

Over: CYPRESS CREEK

2 SOUTH CANADIAN BORDER, Cavalier, ND

Built 1974 Load: 45.3 t ADT: 60

ND HIGHWAY 20

Fair

Over: CYPRESS CREEK

5 SOUTH CANADIAN BORDER, Cavalier, ND

Built 1980 Load: 45.4 t ADT: 140

US HIGHWAY 2

Fair

Over: SALTWATER COULEE

8 WEST OF I-29, Grand Forks, ND

Built 1963 Load: 45.4 t ADT: 5,400

COUNTY HIGHWAY

Fair

Over: MAPLE CREEK

1 SOUTH OF EDGELEY, LaMoure, ND

Built 1979 Load: 45.4 t ADT: 24

ND HIGHWAY 41

Fair

Over: CREEK

2 SOUTH OF HWY 2, McHenry, ND

Built 1968 Load: 45.4 t ADT: 470

US HIGHWAY 2

Fair

Over: CP RAILWAY

NE JCT U.S. HWY 2 & 52, Ward, ND

Built 1960 Load: 45.4 t ADT: 4,150

COUNTY HIGHWAY

Fair

Over: CHARBONNEAU CREEK

2 WEST CHARBONNEAU, McKenzie, ND

Built 1987 Load: 45.5 t ADT: 35

COUNTY HIGHWAY

Fair

Over: KELLY SLOUGH

7 W 3 N OF GRAND FORKS, Grand Forks, ND

Built 1990 Load: 45.7 t ADT: 40

COUNTY ROAD

Fair

Over: SOUTH MARIAS RIVER

4 EAST 3 SOUTH MANVEL, Grand Forks, ND

Built 1926 Load: 45.7 t ADT: 2

ND HIGHWAY 23

Fair

Over: TRIBUTARY OF CHERRY CRK

5 WEST OF ND 73, McKenzie, ND

Built 1976 Load: 45.7 t ADT: 970

COUNTY HIGHWAY

Fair

Over: CREEK

2 SOUTH 6 EAST EMERADO, Grand Forks, ND

Built 1980 Load: 46.0 t ADT: 25

COUNTY HIGHWAY

Fair

Over: CREEK

2 WEST 10 SOUTH GRAFTON, Walsh, ND

Built 2016 Load: 46.3 t ADT: 420

135th Ave SW

Fair

Over: CEDAR CREEK

7 NORTH 2 WEST SCRANTON, Bowman, ND

Built 1922 Load: 46.4 t ADT: 20

ND HIGHWAY 1804

Fair

Over: LITTLE MUDDY RIVER

2 EAST OF US 2, Williams, ND

Built 1981 Load: 46.4 t ADT: 2,700

ND HIGHWAY 15

Fair

Over: CREEK

1 WEST OF I-29, Grand Forks, ND

Built 1955 Load: 46.5 t ADT: 2,830

US HIGHWAY 2

Fair

Over: WHITE EARTH RIVER

10 MILES WEST OF ROSS, Mountrail, ND

Built 1980 Load: 46.5 t ADT: 1,480

COUNTY HIGHWAY

Fair

Over: ELM RIVER

5 EAST 1 NORTH ARTHUR, Cass, ND

Built 1986 Load: 46.6 t ADT: 10

US HIGHWAY 2

Fair

Over: BNRR SEP OVER

1 EAST OF ND 32 SOUTH, Nelson, ND

Built 1983 Load: 46.6 t ADT: 1,455

INTERSTATE 29

Fair

Over: BNSF SEPARATION

3 NORTH OF ND 200, Traill, ND

Built 1969 Load: 46.6 t ADT: 4,550

INTERSTATE 29

Fair

Over: BNSF SEPARATION

3 NORTH OF ND 200, Traill, ND

Built 1969 Load: 46.6 t ADT: 4,550

ND 200

Fair

Over: MIDDLE BR. GOOSE RIVER

9 EAST JCT ND 32, Steele, ND

Built 1994 Load: 46.8 t ADT: 710

ND HIGHWAY 8

Fair

Over: STONY CREEK

SOUTH EDGE OF BOWBELLS, Burke, ND

Built 1985 Load: 47.2 t ADT: 280

COUNTY HIGHWAY

Fair

Over: CREEK

3 NORTH OF MAPLETON, Cass, ND

Built 1958 Load: 47.2 t ADT: 330

COUNTY HIGHWAY

Fair

Over: SHEYENNE RIVER

3 NORTH 2 EAST HARWOOD, Cass, ND

Built 1979 Load: 47.2 t ADT: 140

COUNTY ROAD

Fair

Over: NORTH MARAIS RIVER

1 EAST 7 NORTH MANVEL, Grand Forks, ND

Built 1992 Load: 47.2 t ADT: 70

ND HIGHWAY 13

Fair

Over: BEAR CREEK

1 EAST OF ND 1, Dickey, ND

Built 1959 Load: 47.3 t ADT: 910

Showing 1,851-1,900 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.