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

44th Street

Good

Over: SIMMS CREEK

4 SOUTH 4 WEST NEW SALEM, Morton, ND

Built 1997 Load: 40.8 t ADT: 5

COUNTY HIGHWAY

Good

Over: S BR LITTLE HEART RIVER

2 SOUTH 3 WEST ST ANTHONY, Morton, ND

Built 2017 Load: 40.8 t ADT: 20

IRRFB ND HWAY 1804

Good

Over: LITTLE KNIFE RIVER

5 NORTH OF ND 23, Mountrail, ND

Built 2017 Load: 40.8 t ADT: 500

ND HIGHWAY 1804

Good

Over: WHITE EARTH RIVER

20 NORTH 8 WEST OF ND 23, Mountrail, ND

Built 2018 Load: 40.8 t ADT: 350

COUNTY HIGHWAY

Good

Over: CREEK

9 SOUTH 3 EAST OF LAKOTA, Nelson, ND

Built 1995 Load: 40.8 t ADT: 80

28th Avenue SW

Good

Over: CREEK

8 SOUTH OF HENSLER, Oliver, ND

Built 1993 Load: 40.8 t ADT: 380

COUNTY HIGHWAY

Good

Over: CREEK

1 NORTH OF SANGER, Oliver, ND

Built 1994 Load: 40.8 t ADT: 100

COUNTY HIGHWAY

Good

Over: CREEK

4 EAST OF WALHALLA, Pembina, ND

Built 2010 Load: 40.8 t ADT: 270

COUNTY HIGHWAY

Good

Over: CREEK

3 EAST 2 NORTH HAMILTON, Pembina, ND

Built 2013 Load: 40.8 t ADT: 130

COUNTY ROAD

Good

Over: CREEK

6 EAST 1 NORTH BATHGATE, Pembina, ND

Built 2016 Load: 40.8 t ADT: 24

COUNTY HIGHWAY

Good

Over: COULEE

2 WEST 6 SOUTH EDMORE, Ramsey, ND

Built 2001 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: ANTELOPE CREEK

2.2 EAST OF I-29 INT., Richland, ND

Built 1998 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

3 EAST OF GALCHUTT, Richland, ND

Built 1984 Load: 40.8 t ADT: 400

COUNTY HIGHWAY

Good

Over: WILLOW CREEK

3 WEST 4 NORTH DUNSEITH, Rolette, ND

Built 2001 Load: 40.8 t ADT: 80

COUNTY HIGHWAY

Good

Over: MUD CREEK

7 SOUTH DUNSEITH, Rolette, ND

Built 1994 Load: 40.8 t ADT: 10

COUNTY HIGHWAY

Good

Over: OX CREEK

3 SOUTH OF ROLETTE, Rolette, ND

Built 2006 Load: 40.8 t ADT: 100

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

3 SOUTH 2 EAST OF RUTLAND, Sargent, ND

Built 2009 Load: 40.8 t ADT: 25

EAST RIVER ROAD

Good

Over: SAND CREEK

9 WEST 8 NORTH OF AMIDON, Slope, ND

Built 2016 Load: 40.8 t ADT: 25

149TH AVE. SW

Good

Over: DEEP CREEK

12 NORTH 22 EAST MARMARTH, Slope, ND

Built 1993 Load: 40.8 t ADT: 45

COUNTY HIGHWAY

Good

Over: N FORK CANNONBALL RIVER

7 EAST OF AMIDON, Slope, ND

Built 1992 Load: 40.8 t ADT: 24

COUNTY HIGHWAY

Good

Over: N. FORK CEDAR CREEK

8 SOUTH 12 EAST AMIDON, Slope, ND

Built 2016 Load: 40.8 t ADT: 26

COUNTY HIGHWAY

Good

Over: N. FORK CEDAR CREEK

9 SOUTH 12 EAST OF AMIDON, Slope, ND

Built 1995 Load: 40.8 t ADT: 35

COUNTY HIGHWAY

Good

Over: CHANTA PETA CREEK

5 SOUTH 16 EAST OF AMIDON, Slope, ND

Built 2016 Load: 40.8 t ADT: 26

COUNTY HIGHWAY

Good

Over: CREEK

3 E 5 S SOUTH HEART, Stark, ND

Built 2009 Load: 40.8 t ADT: 15

COUNTY HIGHWAY

Good

Over: BR. OF ANTELOPE CREEK

3 EAST OF SCHEFIELD, Stark, ND

Built 1999 Load: 40.8 t ADT: 50

COUNTY HIGHWAY

Good

Over: CREEK

4 EAST 2 NORTH SCHEFIELD, Stark, ND

Built 2000 Load: 40.8 t ADT: 15

COUNTY HIGHWAY

Good

Over: CREEK

4 EAST 2 NORTH SCHEFIELD, Stark, ND

Built 2000 Load: 40.8 t ADT: 15

50TH ST SW

Good

Over: PLUM CREEK

6 EAST OF LEFOR, Stark, ND

Built 1992 Load: 40.8 t ADT: 55

COUNTY HIGHWAY

Good

Over: CREEK

6 WEST 1 NORTH FINLEY, Steele, ND

Built 1993 Load: 40.8 t ADT: 300

COUNTY HIGHWAY

Good

Over: CREEK

4 NORTHEAST BLABON, Steele, ND

Built 2014 Load: 40.8 t ADT: 100

COUNTY ROAD

Good

Over: JAMES RIVER/JIM LAKE

6 EAST OF PINGREE, Stutsman, ND

Built 1998 Load: 40.8 t ADT: 40

COUNTY HIGHWAY

Good

Over: HIDDEN ISLAND COULEE

2 WEST OF HANSBORO, Towner, ND

Built 2016 Load: 40.8 t ADT: 90

COUNTY HIGHWAY

Good

Over: BIG COULEE

1 EAST 2 NORTH BISBEE, Towner, ND

Built 2012 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: CREEK

2 EAST 1 SOUTH OF BISBEE, Towner, ND

Built 2014 Load: 40.8 t ADT: 5

COUNTY HIGHWAY

Good

Over: CREEK

3 SOUTH OF CANDO, Towner, ND

Built 1990 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: CREEK

4 SOUTH 8 EAST OF CANDO, Towner, ND

Built 1992 Load: 40.8 t ADT: 63

COUNTY HIGHWAY

Good

Over: ELM RIVER

1 NORTH OF GALESBURG, Traill, ND

Built 2000 Load: 40.8 t ADT: 525

COUNTY HWY 4928

Good

Over: ELM RIVER

1 EAST OF GALESBURG, Traill, ND

Built 2005 Load: 40.8 t ADT: 310

COUNTY HIGHWAY

Good

Over: NORTH BRANCH GOOSE RIVER

3 NORTH OF MAYVILLE, Traill, ND

Built 1993 Load: 40.8 t ADT: 75

COUNTY HIGHWAY

Good

Over: DRAINAGE DITCH

1 EAST 2 NORTH HILLSBORO, Traill, ND

Built 2002 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: BUFFALO COULEE

4 EAST 1 SOUTH BUXTON, Traill, ND

Built 2004 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: N BRANCH FOREST RIVER

2 NORTH OF FORDVILLE, Walsh, ND

Built 2003 Load: 40.8 t ADT: 150

COUNTY HIGHWAY

Good

Over: PARK RIVER

1 WEST 1 NORTH OF HOOPLE, Walsh, ND

Built 2008 Load: 40.8 t ADT: 250

COUNTY HIGHWAY

Good

Over: MIDDLE BRANCH PARK RIVER

4 EAST 7 NORTH PARK RIVER, Walsh, ND

Built 2016 Load: 40.8 t ADT: 297

COUNTY HIGHWAY

Good

Over: CREEK

1 EAST OF CONWAY, Walsh, ND

Built 1994 Load: 40.8 t ADT: 225

COUNTY ROAD

Good

Over: PARK RIVER

7 EAST 3 NORTH PARK RIVER, Walsh, ND

Built 2016 Load: 40.8 t ADT: 20

COUNTY ROAD

Good

Over: DITCH

1 WEST 3 SOUTH OF GRAFTON, Walsh, ND

Built 2006 Load: 40.8 t ADT: 26

ND HIGHWAY 23

Good

Over: OAK CREEK

6 EAST OF JCT US 83, Ward, ND

Built 1994 Load: 40.8 t ADT: 180

COUNTY ROAD

Good

Over: CREEK

CATHAY, Wells, ND

Built 2009 Load: 40.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

14 EAST 13 NORTH FESSENDE, Wells, ND

Built 2013 Load: 40.8 t ADT: 20

Showing 3,201-3,250 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.