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

1 LANE GRAVEL RD

Good

Over: BRANCH OF FRANKS CREEK

20 MI NW OF BELFIELD,ND, Billings, ND

Built 1983 ADT: 50

NO DATA ENTERED

Good

Over: BRANCH OF FRANKS CREEK

NO DATA ENTERED, Billings, ND

Built 2015 ADT: 50

NO DATA ENTERED

Good

Over: BENNETT CREEK

NO DATA ENTERED, McKenzie, ND

Built 2014 ADT: 10

COUNTY HIGHWAY

Good

Over: BIG COULEE

1 SOUTH CHURCHS FERRY, Ramsey, ND

Built 1988 ADT: 20

COUNTY HIGHWAY

Good

Over: BIG COULEE

1 E 1 N CHURCH'S FERRY, Ramsey, ND

Built 1995 ADT: 20

COUNTY HIGHWAY

Good

Over: BIG COULEE

1 EAST CHURCH'S FERRY, Ramsey, ND

Built 1986 ADT: 52

COUNTY HIGHWAY

Good

Over: CHANNEL A

5 W 2 N DEVILS LAKE, Ramsey, ND

Built 1979 ADT: 50

COUNTY HIGHWAY

Good

Over: MAUVAIS COULEE

7 SOUTH 4 EAST CANDO, Towner, ND

Built 1966 ADT: 20

COUNTY HIGHWAY

Good

Over: MAUVAIS COULEE

8 SOUTH 4 EAST CANDO, Towner, ND

Built 1987 ADT: 20

COUNTY HIGHWAY

Good

Over: COULEE

1 SOUTH 2 WEST THOMPSON, Grand Forks, ND

Built 1936 Load: 3.3 t ADT: 35

COUNTY HIGHWAY

Good

Over: NORTH BRANCH GOOSE RIVER

3 EAST OF HATTON, Traill, ND

Built 1980 Load: 3.5 t ADT: 585

61ST STREET SW

Good

Over: CREEK

9 N 10 E OF CARSON, Grant, ND

Built 1942 Load: 5.8 t ADT: 10

72ND ST SW

Good

Over: CREEK

12 WEST OF TEMVIK, Emmons, ND

Built 1952 Load: 6.4 t ADT: 5

COUNTY HIGHWAY

Good

Over: PEMBINA RIVER

5 EAST OF VANG, Cavalier, ND

Built 1919 Load: 8.2 t ADT: 20

58th AVE SW

Good

Over: HEART RIVER

9 NORTH 2 WEST OF CARSON, Grant, ND

Built 1981 Load: 8.2 t ADT: 25

123RD AVE

Good

Over: KNIFE RIVER

6 EAST 3 NORTH FAIRFIELD, Billings, ND

Built 1982 Load: 8.8 t ADT: 80

30TH AVE SW

Good

Over: SQUARE BUTTE CREEK

8 EAST 4 SOUTH OF CENTER, Oliver, ND

Built 1981 Load: 9.4 t ADT: 27

EAST RIVER RD

Good

Over: ASH COULEE

14 NORTH 1 WEST OF MEDORA, Billings, ND

Built 1985 Load: 10.1 t ADT: 35

FRANKS CREEK RD

Good

Over: FRANKS CREEK

10 NORTH 1 EAST OF MEDORA, Billings, ND

Built 1988 Load: 11.7 t ADT: 25

COUNTY HIGHWAY

Good

Over: CREEK

4 WEST OF SHIELDS, Grant, ND

Built 1978 Load: 12.2 t ADT: 120

HEIL ROAD

Good

Over: CANNONBALL RIVER

6 SOUTH 4 WEST OF LEITH, Grant, ND

Built 1945 Load: 12.3 t ADT: 80

COUNTY HIGHWAY

Good

Over: TONGUE RIVER

1 WEST OF BATHGATE, Pembina, ND

Built 1992 Load: 13.2 t ADT: 330

IRRFB COUNTY HIWAY

Good

Over: EAST FORK SHELL CREEK

4 WEST OF PARSHALL, Mountrail, ND

Built 1980 Load: 13.3 t ADT: 282

COUNTY HIGHWAY

Good

Over: JAMES RIVER

5 EAST OF EDMUNDS, Stutsman, ND

Built 1977 Load: 13.4 t ADT: 50

ND HIGHWAY 5

Good

Over: CREEK

2 WEST OF JCT US 81, Pembina, ND

Built 1996 Load: 13.6 t ADT: 1,350

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

6 NORTHWEST LISBON, Ransom, ND

Built 1981 Load: 13.8 t ADT: 61

COUNTY HIGHWAY

Good

Over: INTERMITTENT STREAM

1 EAST 1 NORTH BLANCHARD, Traill, ND

Built 1963 Load: 13.8 t ADT: 20

ND HIGHWAY 11

Good

Over: CREEK

7 WEST OF WEST JCT ND 3, McIntosh, ND

Built 1986 Load: 14.0 t ADT: 260

77th Ave SW

Good

Over: CREEK

8 N 6 W GOLDEN VALLEY, Mercer, ND

Built 1983 Load: 14.3 t ADT: 65

COUNTY ROAD

Good

Over: SOURIS R. ABANDONED CHAN

1 EAST 1 NORTH LOGAN, Ward, ND

Built 1981 Load: 14.5 t ADT: 120

61st AVE SW

Good

Over: ANTELOPE CREEK

5 WEST 1 NORTH OF CARSON, Grant, ND

Built 1975 Load: 14.7 t ADT: 100

COUNTY HIGHWAY

Good

Over: SOUTH BRANCH PARK RIVER

6 EAST 2 NORTH OF ADAMS, Walsh, ND

Built 1967 Load: 14.8 t ADT: 18

65th St SW

Good

Over: THIRTY MILE CREEK

6 NORTH 4 EAST OF MOTT, Hettinger, ND

Built 1984 Load: 15.0 t ADT: 26

COUNTY HIGHWAY

Good

Over: CREEK

6 NORTH 5 EAST OF FLASHER, Morton, ND

Built 1974 Load: 15.0 t ADT: 5

6TH AVE SE

Good

Over: HEART RIVER

9TH AVE SE-DICKINSON, Stark, ND

Built 1996 Load: 15.0 t ADT: 400

COUNTY HIGHWAY

Good

Over: GOOSE RIVER

3 SOUTH OF NORTHWOOD, Grand Forks, ND

Built 1988 Load: 15.3 t ADT: 40

B-DIKE ROAD

Good

Over: OUTLET OF LONG L. UNIT I

0.7 MI SSW OF HQ, Burleigh, ND

Built 1953 Load: 15.4 t ADT: 50

COUNTY HIGHWAY

Good

Over: CLEAR CREEK

3 NORTH 7 WEST KEENE, McKenzie, ND

Built 1983 Load: 15.8 t ADT: 110

COUNTY HIGHWAY

Good

Over: SE BR LITTLE HEART RIVER

1 EAST OF ST ANTHONY, Morton, ND

Built 1965 Load: 16.0 t ADT: 72

COUNTY ROAD

Good

Over: SHEYENNE RIVER

5 WEST 1 SOUTH OF MCVILLE, Nelson, ND

Built 1985 Load: 16.0 t ADT: 20

COUNTY HIGHWAY

Good

Over: ELM RIVER

5 EAST OF FORBES, Dickey, ND

Built 1992 Load: 16.1 t ADT: 60

COUNTY HIGHWAY

Good

Over: CREEK

6 EAST OF FINLEY, Steele, ND

Built 1980 Load: 16.1 t ADT: 24

US HIGHWAY 12

Good

Over: BNRR COAL SPUR

5 EAST OF JCT. ND 67, Bowman, ND

Built 1972 Load: 16.2 t ADT: 650

61ST AVE SW

Good

Over: CANNONBALL RIVER

6 SOUTH OF LEITH, Grant, ND

Built 1983 Load: 16.3 t ADT: 24

73RD AVE SW

Good

Over: ELM CREEK

13 SOUTH OF GOLDEN VALLEY, Mercer, ND

Built 1985 Load: 16.3 t ADT: 45

US HIGHWAY 2

Good

Over: CREEK

6 EAST OF US 85 SOUTH, Williams, ND

Built 1955 Load: 16.3 t ADT: 9,520

COUNTY HWY.

Good

Over: LARSON COULEE

3W 3N LOGAN ON OLD HWY 52, Ward, ND

Built 1979 Load: 16.6 t ADT: 70

IRRFB ND HIWAY 37

Good

Over: CREEK

2 EAST OF N.D. 1804, McLean, ND

Built 1932 Load: 16.8 t ADT: 290

ND HIGHWAY 13

Good

Over: CREEK

4 EAST OF I-29, Richland, ND

Built 1973 Load: 16.8 t ADT: 5,170

COUNTY ROAD

Good

Over: DRAIN

1 NORTH EDINBURG, Walsh, ND

Built 2018 Load: 16.8 t ADT: 45

Showing 2,101-2,150 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.