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 27

Fair

Over: ANTELOPE CREEK

CITY OF HAZEN, Mercer, ND

Built 1979 Load: 19.1 t ADT: 270

County Highway 27

Fair

Over: KNIFE RIVER

1 SOUTH OF HAZEN, Mercer, ND

Built 1979 Load: 19.1 t ADT: 270

COUNTY ROAD 139

Fair

Over: DRAINAGE AREA

3 SOUTH 6 EAST OF HEBRON, Morton, ND

Built 1965 Load: 19.1 t ADT: 470

COUNTY HIGHWAY 139

Fair

Over: Big Muddy Creek

2 NORTH 4 WEST GLEN ULLIN, Morton, ND

Built 1950 Load: 19.1 t ADT: 470

Hwy 139

Fair

Over: DRAINAGE AREA

1 WEST OF GLEN ULLIN, Morton, ND

Built 1950 Load: 19.1 t ADT: 470

CR139

Fair

Over: BIG MUDDY CREEK

4 EAST OF GLEN ULLIN, Morton, ND

Built 1937 Load: 19.1 t ADT: 100

COUNTY ROAD 139

Fair

Over: CREEK

8 E 2 N GLEN ULLIN, Morton, ND

Built 1947 Load: 19.1 t ADT: 100

County Road 139

Fair

Over: HAILSTORM CREEK

8 WEST OF NEW SALEM, Morton, ND

Built 1947 Load: 19.1 t ADT: 100

38TH ST

Fair

Over: CREEK

5 WEST 1 NORTH NEW SALEM, Morton, ND

Built 1936 Load: 19.1 t ADT: 20

CR 139

Fair

Over: CREEK

5 WEST OF NEW SALEM, Morton, ND

Built 1937 Load: 19.1 t ADT: 100

43RD AVENUE

Fair

Over: SWEET BRIAR CREEK

2 EAST 5 NORTH NEW SALEM, Morton, ND

Built 1970 Load: 19.1 t ADT: 15

49TH ST (CR 137)

Fair

Over: BEAVER CREEK

9 SOUTH 2 EAST NEW SALEM, Morton, ND

Built 1970 Load: 19.1 t ADT: 172

COUNTY HIGHWAY 139

Fair

Over: CREEK

2 NORTH 7 EAST OF JUDSON, Morton, ND

Built 1930 Load: 19.1 t ADT: 405

County Road 139

Fair

Over: CROWN BUTTE CREEK

2 NORTH 11 EAST OF JUDSON, Morton, ND

Built 1948 Load: 19.1 t ADT: 405

65th Street

Fair

Over: N BRANCH CANTEPETA CREEK

4 SOUTH 4 WEST OF FT RICE, Morton, ND

Built 1974 Load: 19.1 t ADT: 30

21ST ST SW

Fair

Over: OTTER CREEK

8 WEST OF HANNOVER, Oliver, ND

Built 1960 Load: 19.1 t ADT: 90

28th Street SW

Fair

Over: CREEK

7 SOUTH 1 EAST HANNOVER, Oliver, ND

Built 1983 Load: 19.1 t ADT: 35

COUNTY HIGHWAY

Fair

Over: BAUKOL-NOONAN MINE ROAD

3 SOUTH 2 EAST OF CENTER, Oliver, ND

Built 1985 Load: 19.1 t ADT: 115

COUNTY HIGHWAY

Fair

Over: SQUARE BUTTE CREEK

8 WEST 3 SOUTH OF PRICE, Oliver, ND

Built 1960 Load: 19.1 t ADT: 110

COUNTY HIGHWAY

Fair

Over: COULEE

4 EAST 5 NORTH EDMORE, Ramsey, ND

Built 1935 Load: 19.1 t ADT: 70

COUNTY ROAD

Fair

Over: CUT BANK CREEK

1 SOUTH 3 EAST SHERWOOD, Renville, ND

Built 1965 Load: 19.1 t ADT: 25

COUNTY HIGHWAY

Fair

Over: WILD RICE RIVER

1 EAST OF GREAT BEND, Richland, ND

Built 1960 Load: 19.1 t ADT: 339

COUNTY HIGHWAY

Fair

Over: STORM LAKE

SOUTH EDGE OF MILNOR, Sargent, ND

Built 1954 Load: 19.1 t ADT: 98

IRRSR COUNTY HIWAY

Fair

Over: CEDER CREEK

39 W 1 S OF SELFRIDGE, Sioux, ND

Built 1966 Load: 19.1 t ADT: 45

58TH ST SW

Fair

Over: DEEP CREEK

11 WEST 7 NORTH OF AMIDON, Slope, ND

Built 1979 Load: 19.1 t ADT: 26

6TH AVENUE WEST

Fair

Over: HEART RIVER

6TH AVE WEST IN BELFIELD, Stark, ND

Built 1927 Load: 19.1 t ADT: 1,076

HWY 10

Fair

Over: CREEK

1 S 1 E SOUTH HEART, Stark, ND

Built 1953 Load: 19.1 t ADT: 865

116TH AVE SW

Fair

Over: HEART RIVER

5 WEST 2 SOUTH DICKINSON, Stark, ND

Built 1983 Load: 19.1 t ADT: 130

HWY 10

Fair

Over: DUCK CREEK

3 WEST OF DICKINSON, Stark, ND

Built 1953 Load: 19.1 t ADT: 1,450

109TH AVE SW

Fair

Over: ANTELOPE CREEK

7 SOUTH 2 EAST DICKINSON, Stark, ND

Built 1971 Load: 19.1 t ADT: 20

81ST AVE SW

Fair

Over: CREEK

15 S 7 E OF RICHARDTON, Stark, ND

Built 1956 Load: 19.1 t ADT: 125

Highway 10

Fair

Over: CREEK

8 EAST OF RICHARDTON, Stark, ND

Built 1950 Load: 19.1 t ADT: 503

Highway 10

Fair

Over: CREEK

9 EAST OF RICHARDTON, Stark, ND

Built 1955 Load: 19.1 t ADT: 503

78th Avenue

Fair

Over: BRANCH KNIFE RIVER

10 E 4 N OF RICHARDTON, Stark, ND

Built 1960 Load: 19.1 t ADT: 15

Highway 10

Fair

Over: CREEK

9 EAST OF RICHARDTON, Stark, ND

Built 1955 Load: 19.1 t ADT: 503

4TH AVENUE EAST

Fair

Over: CREEK

4TH AVENUE EAST-DICKINSON, Stark, ND

Built 1970 Load: 19.1 t ADT: 3,050

2ND AVENUE EAST

Fair

Over: CREEK

2ND AVENUE EAST-DICKINSON, Stark, ND

Built 1965 Load: 19.1 t ADT: 675

SIMS STREET

Fair

Over: CREEK

SIMS ST. - DICKINSON, Stark, ND

Built 1952 Load: 19.1 t ADT: 3,200

8TH AVENUE EAST

Fair

Over: CREEK

8TH AVE EAST-DICKINSON, Stark, ND

Built 1982 Load: 19.1 t ADT: 380

COUNTY HIGHWAY

Fair

Over: NORTH BRANCH GOOSE RIVER

3 EAST 2 NORTH OF FINLEY, Steele, ND

Built 1972 Load: 19.1 t ADT: 24

COUNTY HIGHWAY

Fair

Over: CREEK

3 EAST OF HOPE, Steele, ND

Built 1960 Load: 19.1 t ADT: 197

COUNTY HIGHWAY

Fair

Over: NORTH BRANCH GOOSE RIVER

14 EAST 1 SOUTH FINLEY, Steele, ND

Built 1964 Load: 19.1 t ADT: 49

COUNTY HIGHWAY

Fair

Over: ELM RIVER

11 EAST OF HOPE, Steele, ND

Built 1965 Load: 19.1 t ADT: 200

TOWNSHIP ROAD

Fair

Over: PIPESTEM CREEK

4 SOUTH 1 WEST PINGREE, Stutsman, ND

Built 1950 Load: 19.1 t ADT: 26

COUNTY HIGHWAY

Fair

Over: BIG COULEE

6 NORTH OF BISBEE, Towner, ND

Built 1971 Load: 19.1 t ADT: 45

COUNTY HIGHWAY

Fair

Over: CREEK

3 S 5 W OF CANDO, Towner, ND

Built 1965 Load: 19.1 t ADT: 26

COUNTY HIGHWAY

Fair

Over: NORTH BRANCH GOOSE RIVER

5 EAST 1.5 SOUTH MAYVILLE, Traill, ND

Built 1920 Load: 19.1 t ADT: 20

COUNTY HIGHWAY

Fair

Over: BUFFALO COULEE

4 EAST BUXTON, Traill, ND

Built 1973 Load: 19.1 t ADT: 472

COUNTY HIGHWAY

Fair

Over: GOOSE RIVER

1 NORTH 4 EAST HILLSBORO, Traill, ND

Built 1970 Load: 19.1 t ADT: 45

COUNTY HIGHWAY

Fair

Over: NORTH BRANCH ELM RIVER

6 EAST 8 SOUTH HILLSBORO, Traill, ND

Built 1983 Load: 19.1 t ADT: 20

Showing 801-850 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.