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 31

Good

Over: CASS COUNTY DRAIN 42

7 E OF GRANDIN, Cass, ND

Built 2012 Load: 32.7 t ADT: 106

INTERSTATE 94

Good

Over: MAPLE RIVER

6 EAST OF ND 18, Cass, ND

Built 2023 Load: 32.7 t ADT: 8,920

COUNTY HIGHWAY

Good

Over: CREEK

4 WEST 4 NORTH OF LANGDON, Cavalier, ND

Built 1977 Load: 32.7 t ADT: 85

COUNTY HIGHWAY

Good

Over: CREEK

3 WEST OF MONANGO, Dickey, ND

Built 1981 Load: 32.7 t ADT: 68

92nd Ave.

Good

Over: BRANCH OF NORTH CREEK

4 NORTH 2 WEST OF WERNER, Dunn, ND

Built 1985 Load: 32.7 t ADT: 80

1st St. SW

Good

Over: CREEK

4 NORTH 7 WEST HALLIDAY, Dunn, ND

Built 1990 Load: 32.7 t ADT: 75

4th St. SW

Good

Over: SPRING CREEK

NORTHWEST HALLIDAY, Dunn, ND

Built 1989 Load: 32.7 t ADT: 90

81st Ave. SW

Good

Over: Knife River

4 SOUTH OF DODGE, Dunn, ND

Built 1990 Load: 32.7 t ADT: 65

ND HIGHWAY 1806

Good

Over: HANS CREEK

6 NORTH 2 EAST HALLIDAY, Dunn, ND

Built 1984 Load: 32.7 t ADT: 90

89TH ST SW

Good

Over: CREEK

18 WEST OF STRASBURG, Emmons, ND

Built 1988 Load: 32.7 t ADT: 30

3RD AVE SE

Good

Over: BEAVER CREEK

4 WEST OF LINTON, Emmons, ND

Built 1988 Load: 32.7 t ADT: 65

ND HIGHWAY 1804

Good

Over: CREEK

12 S 13 W OF STRASBURG, Emmons, ND

Built 1991 Load: 32.7 t ADT: 150

ND HIGHWAY 1804

Good

Over: CREEK

12 S 13 W OF STRASBURG, Emmons, ND

Built 1991 Load: 32.7 t ADT: 160

COUNTY HIGHWAY

Good

Over: CREEK

1 NORTH 1 EAST OF BEACH, Golden Valley, ND

Built 1967 Load: 32.7 t ADT: 45

Blacktail Rd.

Good

Over: BEAVER CREEK

2 SOUTH 10 EAST TROTTERS, Golden Valley, ND

Built 1985 Load: 32.7 t ADT: 40

COUNTY HIGHWAY

Good

Over: DRAIN DITCH

3 SOUTH GRAND FORKS, Grand Forks, ND

Built 2006 Load: 32.7 t ADT: 225

INTERSTATE 29

Good

Over: COUNTY DRAIN NO. 13

2 SOUTH OF ND 54, Grand Forks, ND

Built 1970 Load: 32.7 t ADT: 5,400

COUNTY ROAD

Good

Over: CHANTA PETA CREEK

14 S. 2 E. NEW ENGLAND, Hettinger, ND

Built 1982 Load: 32.7 t ADT: 20

COUNTY ROAD

Good

Over: DEAD HORSE CREEK

1 S. 6 E. OF NEW ENGLAND, Hettinger, ND

Built 1988 Load: 32.7 t ADT: 26

COUNTY HIGHWAY

Good

Over: HAY SLOUGH CREEK

11 E. 2 S. OF NEW ENGLAND, Hettinger, ND

Built 1982 Load: 32.7 t ADT: 20

COUNTY HIGHWAY

Good

Over: CREEK

14 NORTH OF REGENT, Hettinger, ND

Built 1990 Load: 32.7 t ADT: 340

COUNTY ROAD

Good

Over: THIRTY MILE CREEK

12 N. OF REGENT, Hettinger, ND

Built 1990 Load: 32.7 t ADT: 355

COUNTY ROAD

Good

Over: MAPLE RIVER

4 EAST 3 SOUTH OF EDGELEY, LaMoure, ND

Built 1984 Load: 32.7 t ADT: 40

US HIGHWAY 281

Good

Over: MAPLE RIVER

2 SOUTH OF ND 13, LaMoure, ND

Built 1941 Load: 32.7 t ADT: 970

71ST ST SE

Good

Over: BEAVER CREEK

AT BURNSTAD, Logan, ND

Built 1983 Load: 32.7 t ADT: 48

REFUGE ACCESS ROAD

Good

Over: UNNAMED MARSH

NE 1/4 SECT 6 T158N R76W, McHenry, ND

Built 2016 Load: 32.7 t ADT: 40

81ST STREET NORTH

Good

Over: OUTLET CHANNEL OF MARSH

SE 1/4 SEC 15 T159N R77W, McHenry, ND

Built 2010 Load: 32.7 t ADT: 40

COUNTY HIGHWAY

Good

Over: LONESOME CREEK

2 NORTH CHARBONNEAU, McKenzie, ND

Built 1987 Load: 32.7 t ADT: 20

COUNTY HIGHWAY

Good

Over: BRIDGER CREEK

13 E 2 N HOMESTEADERS GAP, McKenzie, ND

Built 1982 Load: 32.7 t ADT: 135

COUNTY HIGHWAY

Good

Over: TOBACCO GARDEN CREEK

4N 3W WATFORD CITY, McKenzie, ND

Built 1980 Load: 32.7 t ADT: 20

COUNTY HIGHWAY

Good

Over: TOBACCO GARDEN CREEK

4N 1W WATFORD CITY, McKenzie, ND

Built 1978 Load: 32.7 t ADT: 20

US HIGHWAY 85

Good

Over: LITTLE MISSOURI RIVER

16 SOUTH OF ND 23, McKenzie, ND

Built 2020 Load: 32.7 t ADT: 4,680

IRRFB COUNTY HIWAY

Good

Over: CREEK

2 E 11 N GOLDEN VALLEY, Mercer, ND

Built 1989 Load: 32.7 t ADT: 45

ND HIGHWAY 49

Good

Over: KNIFE RIVER

1 SOUTH OF BEULAH, Mercer, ND

Built 2016 Load: 32.7 t ADT: 3,400

66TH AVE

Good

Over: DRAINAGE AREA

5 NORTH 1 WEST GLEN ULLIN, Morton, ND

Built 1963 Load: 32.7 t ADT: 90

COUNTY HIGHWAY

Good

Over: CROWN BUTTE CREEK

3 NORTH 8 EAST OF JUDSON, Morton, ND

Built 1945 Load: 32.7 t ADT: 230

26TH AVE

Good

Over: CHANTA PETA CREEK

17 S 3 W OF ST ANTHONY, Morton, ND

Built 1985 Load: 32.7 t ADT: 25

COUNTY ROAD

Good

Over: DRAIN DITCH

1 SOUTH OF JOLIET, Pembina, ND

Built 1958 Load: 32.7 t ADT: 24

COUNTY HIGHWAY

Good

Over: SPRING COULEE

1 SOUTH 4 EAST GLENBURN, Renville, ND

Built 2013 Load: 32.7 t ADT: 300

174TH AVE SE

Good

Over: ANTELOPE CREEK

2 EAST OF GALCHUTT, Richland, ND

Built 2014 Load: 32.7 t ADT: 37

REFUGE ACCESS ROAD

Good

Over: WILD RICE RIVER

SECT 5 T129N R53W, Sargent, ND

Built 2001 Load: 32.7 t ADT: 25

154TH AVE SW

Good

Over: WEST FORK DEEP CREEK

2 NORTH 17 EAST MARMARTH, Slope, ND

Built 1985 Load: 32.7 t ADT: 20

COUNTY HIGHWAY

Good

Over: CREEK

10 WEST OF AMIDON, Slope, ND

Built 1984 Load: 32.7 t ADT: 60

EAST RIVER ROAD

Good

Over: FIRST CREEK

6 NORTH 6 WEST AMIDON, Slope, ND

Built 1985 Load: 32.7 t ADT: 35

COUNTY HIGHWAY

Good

Over: SAND CREEK

6 WEST OF AMIDON, Slope, ND

Built 1983 Load: 32.7 t ADT: 60

54TH ST SW

Good

Over: PHILBRICK CREEK

7 NORTH 14 EAST OF AMIDON, Slope, ND

Built 1986 Load: 32.7 t ADT: 100

COUNTY HIGHWAY

Good

Over: HEART RIVER

1 NORTH OF BELFIELD, Stark, ND

Built 1964 Load: 32.7 t ADT: 50

121st Avenue SW

Good

Over: HEART RIVER

NORTH OF SOUTH HEART, Stark, ND

Built 1986 Load: 32.7 t ADT: 710

US HIGHWAY 85

Good

Over: SOUTH BRANCH HEART RIVER

8 SOUTH OF JCT. I-94, Stark, ND

Built 1968 Load: 32.7 t ADT: 1,320

COUNTY HIGHWAY

Good

Over: MID. BRANCH GOOSE RIVER

7 EAST OF FINLEY, Steele, ND

Built 1980 Load: 32.7 t ADT: 25

Showing 2,751-2,800 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.