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

Good

Over: SHEYENNE RIVER

2 WEST 3 SOUTH OF KINDRED, Richland, ND

Built 1976 Load: 28.5 t ADT: 217

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

3 NORTH OF DWIGHT, Richland, ND

Built 1997 Load: 28.5 t ADT: 20

ND HIGHWAY 18

Good

Over: RUSH RIVER

1 NORTH OF AMENIA, Cass, ND

Built 1957 Load: 28.7 t ADT: 1,000

9TH AVE SW

Good

Over: CATTAIL CREEK

19 WEST 2 SOUTH STRASBURG, Emmons, ND

Built 2002 Load: 28.7 t ADT: 24

COUNTY HIGHWAY

Good

Over: SE BR LITTLE HEART RIVER

2 SOUTH 1 EAST ST ANTHONY, Morton, ND

Built 1971 Load: 28.7 t ADT: 20

County Road 135

Good

Over: SE BRANCH LITTLE HEART R

5 SOUTH 1 EAST ST ANTHONY, Morton, ND

Built 1960 Load: 28.7 t ADT: 60

30TH ST SW

Good

Over: BRANCH OF KNIFE RIVER

4 EAST 6 NORTH RICHARDTON, Stark, ND

Built 1977 Load: 28.7 t ADT: 80

COUNTY HIGHWAY

Good

Over: SOUTH BRANCH GOOSE RIVER

12 EAST OF BLABON, Steele, ND

Built 1987 Load: 28.7 t ADT: 20

COUNTY HIGHWAY

Good

Over: FIELD DRAIN

2 EAST 1 SOUTH OF CHAFFEE, Cass, ND

Built 1966 Load: 28.8 t ADT: 10

COUNTY HIGHWAY

Good

Over: LITTLE SO. PEMBINA RIVER

1 EAST OF MOUNT CARMEL, Cavalier, ND

Built 1995 Load: 28.8 t ADT: 190

COUNTY ROAD

Good

Over: MAPLE RIVER

SOUTHWEST OF FULLERTON, Dickey, ND

Built 1998 Load: 28.8 t ADT: 15

COUNTY HIGHWAY

Good

Over: TIMBER CREEK

4 NORTH 2 EAST ALEXANDER, McKenzie, ND

Built 1984 Load: 28.8 t ADT: 50

ND HIGHWAY 23

Good

Over: CHERRY CREEK

5 EAST OF WATFORD CITY, McKenzie, ND

Built 1955 Load: 28.8 t ADT: 1,140

SIMS RD

Good

Over: SIMS CREEK

2 NORTH 1 EAST OF ALMONT, Morton, ND

Built 2020 Load: 28.8 t ADT: 50

COUNTY HIGHWAY

Good

Over: SOUTH BRANCH GOOSE RIVER

1 NORTH 6 EAST OF HOPE, Steele, ND

Built 1997 Load: 28.8 t ADT: 80

COUNTY HIGHWAY

Good

Over: MID. BRANCH GOOSE RIVER

1 SOUTH 10 EAST OF FINLEY, Steele, ND

Built 1989 Load: 28.9 t ADT: 24

CITY STREET

Good

Over: FIELD DRAIN

CITY OF CASSELTON, Cass, ND

Built 2001 Load: 29.0 t ADT: 675

63RD ST SW

Good

Over: BADGER CREEK

8 WEST 1 NORTH HAZELTON, Emmons, ND

Built 1962 Load: 29.0 t ADT: 80

US HIGHWAY 83

Good

Over: CREEK

1 SOUTH OF LINTON, Emmons, ND

Built 2013 Load: 29.0 t ADT: 2,220

COUNTY HIGHWAY

Good

Over: TURTLE RIVER

1 NORTH 8 EAST MEKINOCK, Grand Forks, ND

Built 1985 Load: 29.0 t ADT: 30

COUNTY ROAD

Good

Over: SOUTH MORAIS RIVER

3 EAST 2 SOUTH MANVEL, Grand Forks, ND

Built 1987 Load: 29.0 t ADT: 100

73RD AVE SE

Good

Over: COTTONWOOD CREEK

0.5 SOUTH OF JUD, LaMoure, ND

Built 2020 Load: 29.0 t ADT: 18

COUNTY HIGHWAY

Good

Over: JAMES RIVER

CITY OF ADRIAN, LaMoure, ND

Built 1978 Load: 29.0 t ADT: 80

26TH AVE SE

Good

Over: BEAVER CREEK

5 WEST 14 SOUTH NAPOLEON, Logan, ND

Built 1996 Load: 29.0 t ADT: 40

COUNTY HIGHWAY

Good

Over: CREEK

9 EAST 1 NORTH PICKERT, Steele, ND

Built 1989 Load: 29.0 t ADT: 40

COUNTY ROAD

Good

Over: FOREST RIVER

7 EAST 1 SOUTH OF MINTO, Walsh, ND

Built 1989 Load: 29.0 t ADT: 40

ND HIGHWAY 1804

Good

Over: BEAVER CREEK

31 EAST OF WILLISTON, Williams, ND

Built 2015 Load: 29.0 t ADT: 5,000

IRRFB ND HIWAY 23

Good

Over: CREEK

6 WEST OF ND 1804, McKenzie, ND

Built 1990 Load: 29.1 t ADT: 1,550

JOHNSON AVENUE

Good

Over: FOREST RIVER

SOUTHEAST CORNER MINTO, Walsh, ND

Built 2005 Load: 29.1 t ADT: 75

US HIGHWAY

Good

Over: CREEK

2 W 5 N OF MINNEWAUKAN, Benson, ND

Built 2006 Load: 29.2 t ADT: 715

CR 22/31ST ST SE

Good

Over: RUSH RIVER

1.3 WEST OF PROSPER, Cass, ND

Built 2023 Load: 29.2 t ADT: 191

COUNTY HIGHWAY

Good

Over: BRANCH SHEYENNE RIVER

1 WEST OF HARWOOD, Cass, ND

Built 2013 Load: 29.2 t ADT: 50

COUNTY HIGHWAY

Good

Over: KELLYS SLOUGH

6 EAST 1 SOUTH MEKINOCK, Grand Forks, ND

Built 1987 Load: 29.2 t ADT: 20

COUNTY HIGHWAY

Good

Over: WINTERING RIVER

4 EAST 4 SOUTH KARLSRUHE, McHenry, ND

Built 1937 Load: 29.2 t ADT: 25

COUNTY HIGHWAY

Good

Over: BOWLINE CREEK

9N 17W OF GRASSY BUTTE, McKenzie, ND

Built 1984 Load: 29.2 t ADT: 135

37TH ST

Good

Over: WILSON CREEK

6 EAST 4 NORTH GLEN ULLIN, Morton, ND

Built 2020 Load: 29.2 t ADT: 10

69th Street

Good

Over: LOUSE CREEK

2 SOUTH 4 EAST OF FLASHER, Morton, ND

Built 2016 Load: 29.2 t ADT: 70

County Road 81

Good

Over: CREEK

3 NORTH 3 EAST ST ANTHONY, Morton, ND

Built 2016 Load: 29.2 t ADT: 30

COUNTY ROAD

Good

Over: CREEK

5 EAST 1 NORTH CAVALIER, Pembina, ND

Built 2019 Load: 29.2 t ADT: 10

97TH ST SE

Good

Over: DRAINAGE DITCH

5 EAST 3 SOUTH FAIRMONT, Richland, ND

Built 2013 Load: 29.2 t ADT: 37

US HIGHWAY 85

Good

Over: BRANCH-CANNONBALL RIVER

2 SOUTH OF JCT. ND 21, Slope, ND

Built 1963 Load: 29.2 t ADT: 1,010

COUNTY HIGHWAY

Good

Over: PIPESTEM CREEK

5 NORTH 8 WEST EDMUNDS, Stutsman, ND

Built 1998 Load: 29.2 t ADT: 50

COUNTY HIGHWAY

Good

Over: GOOSE RIVER

2 WEST 1 NORTH PORTLAND, Traill, ND

Built 1988 Load: 29.2 t ADT: 20

COUNTY HIGHWAY

Good

Over: SHORT CREEK

5 NORTH 1 EAST COLUMBUS, Burke, ND

Built 2000 Load: 29.3 t ADT: 20

COUNTY HIGHWAY

Good

Over: RED RIVER OF THE NORTH

3 EAST OF HARWOOD, Cass, ND

Built 1991 Load: 29.3 t ADT: 100

42nd Street

Good

Over: DRAINAGE AREA

1 SOUTH 1 WEST GLEN ULLIN, Morton, ND

Built 1970 Load: 29.3 t ADT: 15

COUNTY ROAD

Good

Over: CUT BANK CREEK

6 WEST 1 SOUTH MAXBASS, Bottineau, ND

Built 2012 Load: 29.4 t ADT: 30

COUNTY ROAD

Good

Over: TURTLE RIVER

1 WEST OF MEKINOCK, Grand Forks, ND

Built 1993 Load: 29.4 t ADT: 100

COUNTY HIGHWAY

Good

Over: LITTLE DEEP CREEK

7 WEST OF UPHAM, McHenry, ND

Built 2019 Load: 29.4 t ADT: 150

125M AVE SW

Good

Over: HEART RIVER

5 EAST OF BELFIELD, Stark, ND

Built 1999 Load: 29.4 t ADT: 60

Showing 2,551-2,600 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.