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

TOWNSHIP ROAD

Good

Over: PIPESTEM CREEK

4 SOUTH 2 WEST BUCHANAN, Stutsman, ND

Built 1973 Load: 44.3 t ADT: 25

ND HIGHWAY 28

Good

Over: DES LACS RIVER

NORTH OF U.S. HWY 52, Ward, ND

Built 1987 Load: 44.3 t ADT: 380

COUNTY HIGHWAY

Good

Over: CHERRY CREEK

2 S 1 W WATFORD CITY, McKenzie, ND

Built 1994 Load: 44.4 t ADT: 20

ND HIGHWAY 46

Good

Over: MAPLE RIVER

CITY OF ENDERLIN, Ransom, ND

Built 1994 Load: 44.4 t ADT: 1,900

STATE AVENUE

Good

Over: DRAINAGE WAY

STATE AVENUE, Stark, ND

Built 2015 Load: 44.4 t ADT: 4,000

IRRFT ND HIWAY 20

Good

Over: SHEYENNE RIVER

1 SOUTH OF NORTH 15, Eddy, ND

Built 1989 Load: 44.5 t ADT: 270

COUNTY HIGHWAY

Good

Over: CREEK

7 SOUTH OF WALES, Cavalier, ND

Built 1977 Load: 44.6 t ADT: 190

COUNTY ROAD

Good

Over: CREEK

2 WEST 2 NORTH FORBES, Dickey, ND

Built 1977 Load: 44.6 t ADT: 25

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

2 WEST 1 SOUTH ABERCROMBI, Richland, ND

Built 1989 Load: 44.6 t ADT: 50

141ST AVENUE

Good

Over: NORTH FORK GRAND RIVER

4 EAST 15.5 SOUTH BOWMAN, Bowman, ND

Built 1992 Load: 44.7 t ADT: 30

COUNTY HIWAY

Good

Over: LITTLE KNIFE RIVER

10 WEST 3 SOUTH KILLDEER, Dunn, ND

Built 2011 Load: 44.7 t ADT: 30

IRRSR ND HIWAY 49

Good

Over: CREEK

12 NORTH ND-SD BORDER, Grant, ND

Built 1972 Load: 44.8 t ADT: 250

COUNTY HIGHWAY

Good

Over: MID. BRANCH GOOSE RIVER

3 NORTH 4 EAST OF FINLEY, Steele, ND

Built 1982 Load: 44.8 t ADT: 24

ND HIGHWAY 49

Good

Over: BIG MUDDY CREEK

3 SOUTH OF I-94, Morton, ND

Built 1959 Load: 44.9 t ADT: 890

ND HIGHWAY 18

Good

Over: PEMBINA RIVER

1 SOUTH CANADA BORDER, Pembina, ND

Built 1988 Load: 44.9 t ADT: 410

370th Ave NE

Good

Over: CREEK

4 EAST 4 NORTH OF WILTON, Burleigh, ND

Built 1999 Load: 45.0 t ADT: 50

COUNTY ROAD

Good

Over: MAPLE RIVER

4 EAST 2 SOUTH ELLENDALE, Dickey, ND

Built 2006 Load: 45.0 t ADT: 35

12th St SW

Good

Over: CREEK

7 SOUTH OF HALLIDAY, Dunn, ND

Built 2002 Load: 45.0 t ADT: 35

US HIGHWAY 81

Good

Over: ENGLISH COULEE DIVERSION

2 NORTH OF US 2, Grand Forks, ND

Built 2003 Load: 45.0 t ADT: 4,990

US HIGHWAY 52

Good

Over: PIPESTEM CREEK

7 WEST OF US 281, Foster, ND

Built 1965 Load: 45.1 t ADT: 1,830

COUNTY HIGHWAY

Good

Over: LONESOME CREEK

1 NORTHEAST CHARBONNEAU, McKenzie, ND

Built 1999 Load: 45.1 t ADT: 20

BISMARCK EXPWY

Good

Over: HAY CREEK

2 SOUTH OF EXIT 161, Burleigh, ND

Built 1984 Load: 45.2 t ADT: 6,900

ND HIGHWAY 1

Good

Over: BEAR CREEK

3 NORTH OF OAKES, Dickey, ND

Built 1990 Load: 45.2 t ADT: 1,650

COUNTY ROAD

Good

Over: TURTLE RIVER

2 EAST OF MEKINOCK, Grand Forks, ND

Built 1988 Load: 45.2 t ADT: 100

ND HIGHWAY 60

Good

Over: CREEK

14 SOUTH OF N.D.HWY 5, Bottineau, ND

Built 2006 Load: 45.3 t ADT: 650

COUNTY HWY

Good

Over: BIG COULEE

4 NORTH OF ND 19, Benson, ND

Built 1998 Load: 45.4 t ADT: 200

COUNTY HIGHWAY

Good

Over: CREEK

7 WEST 2 NORTH OF DURBIN, Cass, ND

Built 2018 Load: 45.4 t ADT: 10

COUNTY HIGHWAY

Good

Over: COUNTY DRAIN 2

2 WEST OF HARWOOD, Cass, ND

Built 2021 Load: 45.4 t ADT: 58

COUNTY ROAD 17 S

Good

Over: SHEYENNE RIVER

3 NORTH OF HORACE, Cass, ND

Built 2023 Load: 45.4 t ADT: 7,282

INTERSTATE 29

Good

Over: DRAIN

_, Cass, ND

Built 2015 Load: 45.4 t ADT: 6,500

86TH ST SE

Good

Over: S. BRANCH BEAVER CREEK

2 NORTH 9 EAST STRASBURG, Emmons, ND

Built 1981 Load: 45.4 t ADT: 52

US HIGHWAY 2

Good

Over: ENGLISH COULEE DIVERSION

2 WEST OF I-29, Grand Forks, ND

Built 2003 Load: 45.4 t ADT: 9,345

19TH AVE

Good

Over: LITTLE HEART RIVER

4 E 6 N OF ST. ANTHONY, Morton, ND

Built 2023 Load: 45.4 t ADT: 11

COUNTY ROAD 134

Good

Over: CANTAPETA CREEK

5 EAST 4 NORTH OF SOLEN, Morton, ND

Built 2023 Load: 45.4 t ADT: 40

COUNTY ROAD 134

Good

Over: CANTAPETA CREEK

5 EAST 4 NORTH OF SOLEN, Morton, ND

Built 2023 Load: 45.4 t ADT: 40

COUNTY HIGHWAY

Good

Over: SHELL CREEK

13 NORTH 1 EAST PARSHALL, Mountrail, ND

Built 2014 Load: 45.4 t ADT: 325

ND HIGHWAY 60

Good

Over: CREEK

WEST OF N.D. HWY 3, Pierce, ND

Built 1964 Load: 45.4 t ADT: 400

INTERSTATE 29

Good

Over: NORTH BRANCH ELM RIVER

2 SOUTH ND 200, Traill, ND

Built 2021 Load: 45.4 t ADT: 11,635

COUNTY HIGHWAY

Good

Over: CREEK

2 EAST 10 SO. PARK RIVER, Walsh, ND

Built 2001 Load: 45.4 t ADT: 75

ND HIGHWAY 3

Good

Over: WOLF CREEK

1 NORTH OF ND 66, Rolette, ND

Built 1992 Load: 45.5 t ADT: 930

COUNTY HIGHWAY

Good

Over: CREEK

3 NORTH 8 WEST NORTHWOOD, Grand Forks, ND

Built 2006 Load: 45.6 t ADT: 30

US HIGHWAY 85

Good

Over: CREEK

12 NORTH OF US 12, Slope, ND

Built 1991 Load: 45.6 t ADT: 1,080

COUNTY HIGHWAY

Good

Over: CREEK

2 WEST OF DURBIN, Cass, ND

Built 2021 Load: 45.7 t ADT: 20

COUNTY HIGHWAY

Good

Over: CREEK

1 WEST 1 NORTH OF DURBIN, Cass, ND

Built 2021 Load: 45.7 t ADT: 20

76TH ST SE

Good

Over: SAND CREEK

5 WEST 4 SOUTH TEMVIK, Emmons, ND

Built 1999 Load: 45.7 t ADT: 24

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

3 EAST 3 SOUTH ELLENDALE, Dickey, ND

Built 2001 Load: 45.8 t ADT: 24

ND HIGHWAY 6

Good

Over: BURLINGTON NORTHERN RR

10TH AVE & MAIN ST MANDAN, Morton, ND

Built 1990 Load: 46.0 t ADT: 6,800

COUNTY HIGHWAY

Good

Over: COUNTY DRAIN 34

2 WEST OF DAVENPORT, Cass, ND

Built 2016 Load: 46.3 t ADT: 100

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

1 WEST OF WILD RICE, Cass, ND

Built 1986 Load: 46.3 t ADT: 175

COUNTY HIGHWAY

Good

Over: CREEK

1 NORTH OF DURBIN, Cass, ND

Built 2019 Load: 46.4 t ADT: 155

Showing 3,351-3,400 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.