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

US HIGHWAY 52

Fair

Over: JAMES RIVER

1 NORTHWEST OF ND 20, Stutsman, ND

Built 1939 Load: 38.0 t ADT: 5,600

ND HIGHWAY 18

Fair

Over: NORTH FORK PARK RIVER

1 EAST OF HOOPLE, Walsh, ND

Built 1972 Load: 38.0 t ADT: 1,230

ND HIGHWAY 48

Fair

Over: CREEK

7 NORTH OF CENTER, Oliver, ND

Built 1970 Load: 38.2 t ADT: 530

COUNTY TRAIL

Fair

Over: PARK RIVER

2 EAST 1 NORTH EDINBURG, Walsh, ND

Built 2021 Load: 38.2 t ADT: 45

COUNTY HIGHWAY

Fair

Over: SWAN CREEK

4 NORTH OF WHEATLAND, Cass, ND

Built 1955 Load: 38.3 t ADT: 20

COUNTY ROAD

Fair

Over: BOUNDARY CREEK

7 NORTH 2 WEST OF KRAMER, Bottineau, ND

Built 1970 Load: 38.4 t ADT: 25

INTERSTATE 94 EB

Fair

Over: CREEK

1 EAST OF TOWER CITY, Cass, ND

Built 1959 Load: 38.4 t ADT: 4,200

COUNTY HIGHWAY

Fair

Over: PARK RIVER

1 WEST 4 SOUTH OF MILTON, Cavalier, ND

Built 1978 Load: 38.4 t ADT: 50

INTERSTATE 29

Fair

Over: TURTLE RIVER

7 SOUTH OF ND 54, Grand Forks, ND

Built 1971 Load: 38.4 t ADT: 2,750

INTERSTATE 29

Fair

Over: TURTLE RIVER

7 SOUTH OF ND 54, Grand Forks, ND

Built 1971 Load: 38.4 t ADT: 2,750

INTERSTATE 29

Fair

Over: GOOSE RIVER

4 NORTH OF 200 SOUTH, Traill, ND

Built 1970 Load: 38.4 t ADT: 4,550

INTERSTATE 29

Fair

Over: GOOSE RIVER

4 NORTH OF 200 SOUTH, Traill, ND

Built 1970 Load: 38.4 t ADT: 4,550

US HIGHWAY 12

Fair

Over: BNSF RAILROAD

5 EAST JCT ND 8 NORTH, Adams, ND

Built 2000 Load: 38.5 t ADT: 675

COUNTY HIGHWAY

Fair

Over: DRAINAGE DITCH

1 NORTH 2 EAST OF GARDENA, Bottineau, ND

Built 1948 Load: 38.5 t ADT: 22

COUNTY HIGHWAY

Fair

Over: LITTLE GOOSE RIVER

9 WEST 1 SOUTH LARIMORE, Grand Forks, ND

Built 2000 Load: 38.5 t ADT: 35

County Road 137

Fair

Over: CREEK

1 WEST OF ALMONT, Morton, ND

Built 1975 Load: 38.5 t ADT: 40

COUNTY ROAD

Fair

Over: KEMP COULEE

2 WEST 2 SOUTH LOGAN, Ward, ND

Built 1998 Load: 38.5 t ADT: 25

INTERSTATE 94

Fair

Over: RED RIVER OF THE NORTH

ND-MINN BORDER, Cass, ND

Built 1959 Load: 38.6 t ADT: 24,900

INTERSTATE 94

Fair

Over: RED RIVER OF THE NORTH

ND-MINN BORDER, Cass, ND

Built 1959 Load: 38.6 t ADT: 24,900

COUNTY HIGHWAY

Fair

Over: HORSE CREEK NO. 1

11 S 10 W OF ALEXANDER, McKenzie, ND

Built 2014 Load: 38.6 t ADT: 20

INTERSTATE 29

Fair

Over: FOREST RIVER

7 SOUTH ND 17, Walsh, ND

Built 1971 Load: 38.6 t ADT: 2,300

INTERSTATE 29

Fair

Over: FOREST RIVER

7 SOUTH ND 17, Walsh, ND

Built 1971 Load: 38.6 t ADT: 2,300

COUNTY HIGHWAY

Fair

Over: SWAN CREEK

1 EAST 4 NORTH WHEATLAND, Cass, ND

Built 1955 Load: 38.7 t ADT: 20

COUNTY HIGHWAY

Fair

Over: COULEE

2 WEST 1 SOUTH MEKINOCK, Grand Forks, ND

Built 1960 Load: 38.7 t ADT: 105

APPROACH

Fair

Over: ELM COULEE

WEST OF I-29, Grand Forks, ND

Built 1955 Load: 38.7 t ADT: 10

COUNTY ROAD

Fair

Over: BANK CREEK

2 SOUTH OF UPHAM, McHenry, ND

Built 1974 Load: 38.7 t ADT: 25

COUNTY HIGHWAY

Fair

Over: CREEK

9 EAST 8 SOUTH GRAFTON, Walsh, ND

Built 1999 Load: 38.7 t ADT: 10

80th St SW

Fair

Over: CORRAL CREEK

3 WEST 2 SOUTH MARMARTH, Bowman, ND

Built 1984 Load: 38.8 t ADT: 25

119th St NE

Fair

Over: APPLE CREEK

3 WEST OF MENOKEN, Burleigh, ND

Built 1974 Load: 38.8 t ADT: 50

157TH AVE SE

Fair

Over: SWAN CREEK

1 EAST OF CASSELTON, Cass, ND

Built 2023 Load: 38.9 t ADT: 59

INTERSTATE 94

Fair

Over: SWAN CREEK

4 EAST OF ND 18, Cass, ND

Built 1959 Load: 38.9 t ADT: 5,850

US HIGHWAY 83

Fair

Over: CP RAILWAY

2 NORTH OF 1804, McLean, ND

Built 1980 Load: 38.9 t ADT: 1,935

COUNTY HIGHWAY

Fair

Over: ANTELOPE CREEK

1 WEST 3 SOUTH MOORETON, Richland, ND

Built 1975 Load: 38.9 t ADT: 20

80th AVE SW

Fair

Over: BRANCH KNIFE RIVER

8 NORTH 6 EAST RICHARDTON, Stark, ND

Built 1971 Load: 38.9 t ADT: 15

COUNTY ROAD

Fair

Over: TURTLE RIVER

1 EAST 4 NORTH MANVEL, Grand Forks, ND

Built 1979 Load: 39.0 t ADT: 35

ND HIGHWAY 49

Fair

Over: CANNONBALL RIVER

2 SOUTH JCT. ND 21, Grant, ND

Built 1970 Load: 39.0 t ADT: 420

INTERSTATE 94

Fair

Over: BN RAILROAD SEPARATION

6 WEST OF ND 30, Kidder, ND

Built 1958 Load: 39.0 t ADT: 3,150

INTERSTATE 94

Fair

Over: BN RAILROAD SEPARATION

6 WEST OF ND 30, Kidder, ND

Built 1958 Load: 39.0 t ADT: 3,150

COUNTY HIGHWAY

Fair

Over: LITTLE DEEP CREEK

7 WEST 5 SOUTH OF UPHAM, McHenry, ND

Built 1965 Load: 39.0 t ADT: 25

COUNTY HIGHWAY

Fair

Over: JAMES RIVER

IN MONTPELIER, Stutsman, ND

Built 1969 Load: 39.0 t ADT: 165

SIRROCCO DRIVE

Fair

Over: DRAINAGE CHANNEL

0.05 MILES EAST FROM SUMM, Ward, ND

Built 1961 Load: 39.0 t ADT: 400

ND HIGHWAY 22

Fair

Over: RUSSIAN SPRING CREEK

9 NORTH OF I-94, Dunn, ND

Built 1953 Load: 39.1 t ADT: 1,740

87th St SW

Fair

Over: Spring Creek

3 WEST 1 SOUTH OF BOWMAN, Bowman, ND

Built 1965 Load: 39.2 t ADT: 50

COUNTY HIGHWAY

Fair

Over: LONG CREEK

5 EAST 4 NORTH OF CROSBY, Divide, ND

Built 1980 Load: 39.2 t ADT: 20

COUNTY HIGHWAY

Fair

Over: COULEE

3 EAST 9 SOUTH EMERADO, Grand Forks, ND

Built 1968 Load: 39.2 t ADT: 75

INTERSTATE 94

Fair

Over: SHEEP CREEK

17 WEST OF JCT. US 85, Billings, ND

Built 1964 Load: 39.3 t ADT: 2,600

COUNTY ROAD

Fair

Over: DITCH

6 SOUTH OF GRAFTON, Walsh, ND

Built 1967 Load: 39.3 t ADT: 26

US HIGHWAY 10

Fair

Over: RED RIVER OF THE NORTH

MAIN AVE.FARGO, Cass, ND

Built 2004 Load: 39.4 t ADT: 23,400

COUNTY HIGHWAY

Fair

Over: HAZEN BROOK

2 EAST 2 SOUTH ARVILLA, Grand Forks, ND

Built 1964 Load: 39.4 t ADT: 30

IRRFB ND HIWAY 37

Fair

Over: EAST BRANCH SHELL CREEK

2 SOUTH OF N.D. 23, Mountrail, ND

Built 1979 Load: 39.4 t ADT: 700

Showing 1,701-1,750 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.