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

ND HIGHWAY 18

Good

Over: TONGUE RIVER

3 NORTH OF ND 5, Pembina, ND

Built 1972 Load: 33.7 t ADT: 590

ND HIGHWAY 1

Good

Over: CREEK

2 NORTH OF ND 17, Ramsey, ND

Built 1993 Load: 33.7 t ADT: 450

COUNTY HIGHWAY

Good

Over: NORTH BRANCH GOOSE RIVER

14 EAST 2 SOUTH FINLEY, Steele, ND

Built 2004 Load: 33.7 t ADT: 10

ND HIGHWAY 17

Good

Over: SOUTH BRANCH PARK RIVER

1 NORTH ND 17, Walsh, ND

Built 1976 Load: 33.7 t ADT: 800

COUNTY ROAD

Good

Over: GASSMAN COULEE

2 EAST 4 SOUTH BURLINGTON, Ward, ND

Built 1979 Load: 33.7 t ADT: 60

COUNTY HIGHWAY

Good

Over: JAMES RIVER

15 E 2 N OF CARRINGTON, Foster, ND

Built 2004 Load: 33.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: CHARBONNEAU CREEK

7 S.1 E.OF CHARBONNEAU, McKenzie, ND

Built 2006 Load: 33.8 t ADT: 60

ND HIGHWAY 23

Good

Over: CHERRY CREEK

1 EAST OF WATFORD CITY, McKenzie, ND

Built 2015 Load: 33.8 t ADT: 4,775

COUNTY ROAD

Good

Over: GOVERNMENT CREEK

2 EAST 6 NORTH OF MEDORA, Billings, ND

Built 1986 Load: 33.9 t ADT: 300

99th St SW

Good

Over: Lightning Creek

11 SOUTH 6 EAST SCRANTON, Bowman, ND

Built 1987 Load: 33.9 t ADT: 25

COUNTY HIGHWAY

Good

Over: RAYMOND COULEE

1 EAST 1 SOUTH PROSPER, Cass, ND

Built 1987 Load: 33.9 t ADT: 20

COUNTY HIGHWAY

Good

Over: N ROCKFORD CANAL NR2-5

2 N 4 W NEW ROCKFORD, Eddy, ND

Built 1989 Load: 33.9 t ADT: 20

COUNTY HIGHWAY

Good

Over: BONE HILL CREEK

3 WEST OF DICKEY, LaMoure, ND

Built 1997 Load: 33.9 t ADT: 135

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

5 EAST 6 NORTH CAYUGA, Sargent, ND

Built 1991 Load: 33.9 t ADT: 80

3RD ST NE

Good

Over: RED RIVER OF THE NORTH

1 EAST OF CALEDONIA, Traill, ND

Built 2009 Load: 33.9 t ADT: 223

COUNTY ROAD

Good

Over: CREEK BED

1 EAST 3 SOUTH OF OMEMEE, Bottineau, ND

Built 2007 Load: 34.0 t ADT: 45

INTERSTATE 94

Good

Over: MAPLE RIVER

6 EAST OF ND 18, Cass, ND

Built 2022 Load: 34.0 t ADT: 8,375

ND HIGHWAY 200

Good

Over: JAMES RIVER

11 WEST OF ND 20, Foster, ND

Built 1959 Load: 34.0 t ADT: 680

US HIGHWAY 2

Good

Over: FRESHWATER COULEE

7 WEST OF GRAND FORKS, Grand Forks, ND

Built 1985 Load: 34.0 t ADT: 5,400

COUNTY HIGHWAY

Good

Over: DRY FORK CREEK

9 EAST 10 SOUTH RAY, Williams, ND

Built 2013 Load: 34.0 t ADT: 335

ND HIGHWAY 50

Good

Over: SCORIO CREEK

6 WEST OF US 85, Williams, ND

Built 1983 Load: 34.0 t ADT: 380

COUNTY ROAD

Good

Over: COLE CREEK

4 WEST 5 SOUTH THOMPSON, Grand Forks, ND

Built 1972 Load: 34.1 t ADT: 24

US HIGHWAY 85

Good

Over: SOUTH BRANCH GREEN RIVER

9 NORTH OF JCT. I-94, Billings, ND

Built 1971 Load: 34.2 t ADT: 1,210

14th Street NE

Good

Over: McClusky Canal

9.5 mi N-NE of McClusky, Sheridan, ND

Built 1973 Load: 34.3 t ADT: 100

I-94 BUSINESS LOOP

Good

Over: HEART RIVER

4 WEST OF ND 6, Morton, ND

Built 2011 Load: 34.4 t ADT: 1,475

COUNTY HIGHWAY

Good

Over: BOUNDARY CREEK

5 NORTH 2 WEST OF SOURIS, Bottineau, ND

Built 2021 Load: 34.5 t ADT: 30

COUNTY HIGHWAY

Good

Over: N ROCKFORD CANAL NR2-6

2 N 3 W NEW ROCKFORD, Eddy, ND

Built 1989 Load: 34.5 t ADT: 20

US HIGHWAY 83

Good

Over: CREEK

IN LINTON, Emmons, ND

Built 1941 Load: 34.5 t ADT: 1,970

119th St NE

Good

Over: CREEK

8 EAST 2 NORTH OF WILTON, Burleigh, ND

Built 1980 Load: 34.6 t ADT: 24

COUNTY HIGHWAY

Good

Over: PEMBINA RIVER

3 EAST 1 NORTH OF VANG, Cavalier, ND

Built 1996 Load: 34.6 t ADT: 170

US HIGHWAY 281

Good

Over: JAMES RIVER

NEW ROCKFORD NORTH, Eddy, ND

Built 2014 Load: 34.6 t ADT: 1,650

COUNTY HIGHWAY

Good

Over: CREEK

2 NORTH 4 WEST NORTHWOOD, Grand Forks, ND

Built 2004 Load: 34.6 t ADT: 26

COUNTY ROAD

Good

Over: COTTONWOOD CREEK

2 W 2 N OF BERLIN, LaMoure, ND

Built 2021 Load: 34.6 t ADT: 17

ND HIGHWAY 31

Good

Over: CREEK

3 NORTH OF I-94, Morton, ND

Built 1976 Load: 34.6 t ADT: 1,120

ND HIGHWAY 18

Good

Over: CREEK

3 SOUTH OF CAVALIER, Pembina, ND

Built 1998 Load: 34.6 t ADT: 1,290

US HIGHWAY 85

Good

Over: BULL CREEK

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

Built 1968 Load: 34.6 t ADT: 1,390

COUNTY HIGHWAY

Good

Over: CREEK

2 SOUTH 1 EAST TOWER CITY, Cass, ND

Built 2018 Load: 34.7 t ADT: 20

79th St SE

Good

Over: BEAVER CREEK

16 EAST 1 NORTH LINTON, Emmons, ND

Built 2012 Load: 34.7 t ADT: 24

70th St SW

Good

Over: CREEK

2 NORTH 3 WEST OF MOTT, Hettinger, ND

Built 1958 Load: 34.7 t ADT: 90

78TH AVE SW

Good

Over: CREEK

10 E 1 S OF RICHARDTON, Stark, ND

Built 1935 Load: 34.7 t ADT: 20

COUNTY HIGHWAY

Good

Over: LITTLE MUDDY RIVER

2 SOUTH APPAM, Williams, ND

Built 1957 Load: 34.7 t ADT: 50

ND HIGHWAY 6

Good

Over: HEART RIVER

1 SOUTH OF MANDAN, Morton, ND

Built 1984 Load: 34.8 t ADT: 3,550

COUNTY ROAD

Good

Over: GREEN RIVER

9 EAST 12 NORTH FRYBURG, Billings, ND

Built 1983 Load: 34.9 t ADT: 26

COUNTY ROAD

Good

Over: SPRING CREEK

7 EAST 11 SOUTH FAIRFIELD, Billings, ND

Built 1983 Load: 34.9 t ADT: 26

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

4 SOUTH 5 EAST MADDOCK, Benson, ND

Built 2015 Load: 35.0 t ADT: 5

COUNTY HIGHWAY

Good

Over: ELM RIVER

5 EAST OF ARTHUR, Cass, ND

Built 2013 Load: 35.0 t ADT: 120

ND HIGHWAY 11

Good

Over: MAPLE RIVER

6 EAST OF ELLENDALE, Dickey, ND

Built 2016 Load: 35.0 t ADT: 570

ND HIGHWAY 18

Good

Over: SOUTH BRANCH TURTLE RIVE

2 NORTH OF LARIMORE, Grand Forks, ND

Built 1968 Load: 35.0 t ADT: 1,330

COUNTY HIGHWAY

Good

Over: CART CREEK

5 EAST 3 NORTH GARDAR, Pembina, ND

Built 2015 Load: 35.0 t ADT: 24

68th Avenue

Good

Over: HEART BUTTE CREEK

5 SOUTH 3 WEST GLEN ULLIN, Morton, ND

Built 2021 Load: 35.1 t ADT: 10

Showing 2,851-2,900 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.