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

25 TH ST NORTH

Good

Over: COUNTY DRAIN 10

BTWN 40 AND 52 AVE N, Cass, ND

Built 2008 Load: 40.8 t ADT: 50

COUNTY HWY 31

Good

Over: COUNTY DRAIN # 10

1.5 NORTH OF CO.HWY # 20, Cass, ND

Built 2008 Load: 40.8 t ADT: 100

12TH AVE NW-WF

Good

Over: SHEYENNE RIVER

CITY OF WEST FARGO, Cass, ND

Built 2003 Load: 40.8 t ADT: 3,800

SHEYENNE STREET

Good

Over: SHEYENNE RIVER

SHEYENNE STREET-W FARGO, Cass, ND

Built 1993 Load: 40.8 t ADT: 5,000

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

2 SOUTH OF WEST FARGO, Cass, ND

Built 2009 Load: 40.8 t ADT: 250

40TH AVE SO.

Good

Over: SHEYENNE RIVER

3 SOUTH OF WEST FARGO, Cass, ND

Built 2003 Load: 40.8 t ADT: 120

COUNTY HIGHWAY

Good

Over: CREEK

1 WEST 2 SOUTH WALES, Cavalier, ND

Built 2015 Load: 40.8 t ADT: 26

COUNTY HIGHWAY

Good

Over: EAST SNOWFLAKE CREEK

5 NORTH OF WALES, Cavalier, ND

Built 2016 Load: 40.8 t ADT: 152

COUNTY HIGHWAY

Good

Over: SPRING CREEK

5 N 5 W OF NEW HRADEC, Dunn, ND

Built 1992 Load: 40.8 t ADT: 90

COUNTY HIGHWAY

Good

Over: SPRING CREEK

1 NORTH 7 WEST KILLDEER, Dunn, ND

Built 1992 Load: 40.8 t ADT: 24

11th St SW

Good

Over: CREEK

2 NORTH 8 EAST OF MANNING, Dunn, ND

Built 2005 Load: 40.8 t ADT: 24

ND HIGHWAY 200

Good

Over: SPRING CREEK

4 EAST OF ND 22, Dunn, ND

Built 2017 Load: 40.8 t ADT: 3,700

COUNTY HIGHWAY

Good

Over: JAMES RIVER

NORTH NEW ROCKFORD, Eddy, ND

Built 2009 Load: 40.8 t ADT: 50

COUNTY HIGHWAY

Good

Over: JAMES RIVER

1 S 3 E NEW ROCKFORD, Eddy, ND

Built 1994 Load: 40.8 t ADT: 15

3RD AVE SE

Good

Over: LITTLE BEAVER CREEK

7 WEST 1 SOUTH STRASBURG, Emmons, ND

Built 1997 Load: 40.8 t ADT: 24

15th Ave SE

Good

Over: CREEK

1.5 SOUTH OF BRADDOCK, Emmons, ND

Built 2016 Load: 40.8 t ADT: 85

13TH AVE SE

Good

Over: BEAVER CREEK

2 EAST 6 NORTH STRASBURG, Emmons, ND

Built 1993 Load: 40.8 t ADT: 80

COUNTY HIGHWAY

Good

Over: PIPESTEM CREEK

4 W 3 S CARRINGTON, Foster, ND

Built 2001 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: CREEK

4 WEST 2 NORTH NORTHWOOD, Grand Forks, ND

Built 2018 Load: 40.8 t ADT: 50

COUNTY HIGHWAY

Good

Over: CREEK

7 SOUTH 1 WEST LARIMORE, Grand Forks, ND

Built 2018 Load: 40.8 t ADT: 35

COUNTY HIGHWAY

Good

Over: ENGLISH COULEE

4 WEST OF GRAND FORKS, Grand Forks, ND

Built 2016 Load: 40.8 t ADT: 790

COUNTY HIGHWAY

Good

Over: LEGAL DRAIN NO. 4

SOUTH EDGE OF MERRIFIELD, Grand Forks, ND

Built 2009 Load: 40.8 t ADT: 160

COUNTY HIGHWAY

Good

Over: DRAIN DITCH

1 EAT OF MERRIFIELD, Grand Forks, ND

Built 2003 Load: 40.8 t ADT: 50

COUNTY HIGHWAY

Good

Over: DITCH DRAIN

2 EAST MERRIFIELD, Grand Forks, ND

Built 2006 Load: 40.8 t ADT: 170

27TH AVE NORTH

Good

Over: ENGLISH COULEE

27TH AVE N-GRAND FORKS, Grand Forks, ND

Built 2018 Load: 40.8 t ADT: 160

IRRSR COUNTY HIWAY

Good

Over: BRUSHY CREEK

24 SOUTH OF ELGIN, Grant, ND

Built 1995 Load: 40.8 t ADT: 95

COUNTY HIGHWAY

Good

Over: COTTONWOOD CREEK

1 EAST 5 SOUTH LAMOURE, LaMoure, ND

Built 1997 Load: 40.8 t ADT: 50

COUNTY HIGHWAY

Good

Over: CUT BANK CREEK

4 EAST 14 NORTH DEERING, McHenry, ND

Built 2015 Load: 40.8 t ADT: 25

100th St. SE

Good

Over: CREEK

4 EAST OF ZEELAND, McIntosh, ND

Built 2016 Load: 40.8 t ADT: 55

33RD AVE SE

Good

Over: BEAVER CREEK

6 WEST 3 SOUTH WISHEK, McIntosh, ND

Built 2008 Load: 40.8 t ADT: 24

COUNTY HIGHWAY

Good

Over: POISON SPRING CREEK

4 S. 8 W. FLAT ROCK BUTTE, McKenzie, ND

Built 1992 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: SMITH CREEK

2 NORTH 5 WEST TROTTERS, McKenzie, ND

Built 1998 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: ANTELOPE CREEK

4 SOUTH 1 WEST ALEXANDER, McKenzie, ND

Built 2014 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: BEICEGEL CREEK

17W 4N OF GRASSY BUTTE, McKenzie, ND

Built 1996 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: CREEK

13 NORTH OF ARNEGARD, McKenzie, ND

Built 2014 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: CREEK

2 EAST 1 SOUTH ARNEGARD, McKenzie, ND

Built 2016 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: CREEK

4S 2W OF WATFORD CITY, McKenzie, ND

Built 2016 Load: 40.8 t ADT: 160

COUNTY HIGHWAY

Good

Over: CHERRY CREEK

6S 4W OF WATFORD CITY, McKenzie, ND

Built 2016 Load: 40.8 t ADT: 160

COUNTY HIGHWAY

Good

Over: CHERRY CREEK

4S 2W OF WATFORD CITY, McKenzie, ND

Built 2016 Load: 40.8 t ADT: 160

COUNTY HIGHWAY

Good

Over: CREEK

4S 2W OF WATFORD CITY, McKenzie, ND

Built 2016 Load: 40.8 t ADT: 160

COUNTY HIGHWAY

Good

Over: SAND CREEK

2 SOUTH 3 WEST CHARLSON, McKenzie, ND

Built 1993 Load: 40.8 t ADT: 22

ND HIGHWAY 200

Good

Over: TURTLE CREEK

2 WEST 2 SOUTH JCT. ND 41, McLean, ND

Built 1989 Load: 40.8 t ADT: 590

15th ST SW

Good

Over: BRUSH CREEK

1 WEST 4 SOUTH OF BEULAH, Mercer, ND

Built 1994 Load: 40.8 t ADT: 50

County Highway 9

Good

Over: ANTELOPE CREEK

4 WEST 3 NORTH OF HAZEN, Mercer, ND

Built 1997 Load: 40.8 t ADT: 24

3rd Avenue NW

Good

Over: ANTELOPE CREEK

.3 MILES NORTH OF HAZEN, Mercer, ND

Built 2010 Load: 40.8 t ADT: 85

41ST ST

Good

Over: BIG MUDDY CREEK

5 EAST OF GLEN ULLIN, Morton, ND

Built 1992 Load: 40.8 t ADT: 10

County Road 87

Good

Over: KURTZ CREEK

5 EAST OF GLEN ULLIN, Morton, ND

Built 1991 Load: 40.8 t ADT: 72

County Road 138

Good

Over: CREEK

7 EAST 1 SOUTH GLEN ULLIN, Morton, ND

Built 1994 Load: 40.8 t ADT: 72

57TH AVENUE

Good

Over: EAST WILSON CREEK

11 WEST OF NEW SALEM, Morton, ND

Built 2017 Load: 40.8 t ADT: 25

County Road 138

Good

Over: DRAINAGE AREA

6 WEST 4 NORTH OF ALMONT, Morton, ND

Built 1991 Load: 40.8 t ADT: 72

Showing 3,151-3,200 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.