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 83

Fair

Over: CREEK

IN LINTON, Emmons, ND

Built 1945 Load: 36.2 t ADT: 2,850

COUNTY HIGHWAY 139

Fair

Over: SWEET BRIAR CREEK

2 NORTH 2 EAST OF JUDSON, Morton, ND

Built 1964 Load: 36.2 t ADT: 405

ND HIGHWAY 14

Fair

Over: LONE TREE RESERVOIR

12 SOUTH OF U.S. HWY 52, Sheridan, ND

Built 1977 Load: 36.2 t ADT: 280

COUNTY HIGHWAY

Fair

Over: PARK RIVER

5 EAST 2 NORTH GRAFTON, Walsh, ND

Built 1999 Load: 36.2 t ADT: 10

COUNTY ROAD

Fair

Over: DITCH

3 NORTH OF DRAYTON, Pembina, ND

Built 1958 Load: 36.3 t ADT: 27

COUNTY ROAD

Fair

Over: NORTH MARAIS RIVER

10 EAST 10 SOUTH GRAFTON, Walsh, ND

Built 1980 Load: 36.3 t ADT: 19

ND HIGHWAY 5

Fair

Over: WEST BRANCH SHORT CREEK

4 EAST OF NOONAN, Burke, ND

Built 1967 Load: 36.4 t ADT: 390

COUNTY HIGHWAY

Fair

Over: ANTELOPE CREEK

1 NORTH OF MOORETON, Richland, ND

Built 1954 Load: 36.4 t ADT: 37

INTERSTATE 94

Fair

Over: CP RAILWAY & HAY CREEK

1 EAST OF US 83 NORTH, Burleigh, ND

Built 1964 Load: 36.5 t ADT: 6,150

COUNTY ROAD

Fair

Over: CREEK

3 EAST OF FORBES, Dickey, ND

Built 1977 Load: 36.5 t ADT: 25

INTERSTATE 29

Fair

Over: WILD RICE RIVER

7 SOUTH OF ND 46, Richland, ND

Built 1973 Load: 36.5 t ADT: 2,800

COUNTY HIGHWAY

Fair

Over: CREEK

2 NORTH 2 WEST FORDVVILLE, Walsh, ND

Built 1999 Load: 36.5 t ADT: 22

ND HIGHWAY 26

Fair

Over: BALDHILL CREEK

6 EAST OF DAZEY, Barnes, ND

Built 1979 Load: 36.6 t ADT: 270

ND HIGHWAY 5

Fair

Over: MOUSE RIVER

4 WEST OF N.D. HWY 28 S, Renville, ND

Built 1954 Load: 36.6 t ADT: 460

ND HIGHWAY 22

Fair

Over: SPRING CREEK

SOUTH LIMITS OF KILLDEER, Dunn, ND

Built 1986 Load: 36.7 t ADT: 2,420

COUNTY HIGHWAY

Fair

Over: CREEK

4 NORTH 5 EAST OF HATTON, Grand Forks, ND

Built 1968 Load: 36.7 t ADT: 80

COUNTY HIGHWAY

Fair

Over: COULEE

2 EAST 2 NORTH EMERADO, Grand Forks, ND

Built 1962 Load: 36.7 t ADT: 40

INTERSTATE 29

Fair

Over: CP RAILWAY SEPARATION

1 NORTH OF ND 11, Richland, ND

Built 1973 Load: 36.7 t ADT: 2,275

INTERSTATE 29

Fair

Over: CP RAILWAY SEPARATION

1 NORTH OF ND 11, Richland, ND

Built 1973 Load: 36.7 t ADT: 2,275

COUNTY HIGHWAY

Fair

Over: BRANCH OF MAPLE RIVER

9 NORTH OF TOWER CITY, Cass, ND

Built 1968 Load: 36.8 t ADT: 50

COUNTY HIGHWAY

Fair

Over: CREEK

2 WEST EMERADO, Grand Forks, ND

Built 1981 Load: 36.8 t ADT: 200

COUNTY HIGHWAY

Fair

Over: DEVILS LAKE

1 EAST 5 NORTH JCT ND 20, Ramsey, ND

Built 2004 Load: 36.8 t ADT: 150

COUNTY HIGHWAY

Fair

Over: ENGLISH COULEE DRAIN #11

4 WEST OF GRAND FORKS, Grand Forks, ND

Built 1983 Load: 36.9 t ADT: 1,599

COUNTY HIGHWAY

Fair

Over: COULEE

5 NORTH EDMORE, Ramsey, ND

Built 2016 Load: 36.9 t ADT: 75

ND HIGHWAY 13

Fair

Over: WILD RICE RIVER

4 WEST OF WAHPETON, Richland, ND

Built 1974 Load: 36.9 t ADT: 2,855

27TH ST S.E.

Fair

Over: MOUSE RIVER

27TH ST SE-MINOT, Ward, ND

Built 1950 Load: 36.9 t ADT: 4,469

I-94 BUSINESS LOOP

Fair

Over: ANDREWS CREEK

1 SOUTH OF I-94, Billings, ND

Built 1963 Load: 37.0 t ADT: 730

COUNTY HIGHWAY

Fair

Over: CUT BANK CREEK

3 EAST OF SHERWOOD, Renville, ND

Built 1970 Load: 37.0 t ADT: 255

INTERSTATE 94 EB

Fair

Over: JAMES RIVER

JUST WEST JCT. 52 & I-94, Stutsman, ND

Built 1957 Load: 37.0 t ADT: 3,400

COUNTY ROAD

Fair

Over: LITTLE DEEP CREEK

1 SOUTH WOLSETH, Ward, ND

Built 1965 Load: 37.0 t ADT: 45

COUNTY ROAD

Fair

Over: SOUTH MARAIS RIVER

1 NORTH 2 EAST MANVEL, Grand Forks, ND

Built 1991 Load: 37.1 t ADT: 20

ND HIGHWAY 18

Fair

Over: SOUTH BRANCH PARK RIVER

JUST NORTH ND 17, Walsh, ND

Built 1973 Load: 37.1 t ADT: 1,000

COUNTY HIGHWAY

Fair

Over: CREEK

1 S 2 E OF VERONA, LaMoure, ND

Built 1976 Load: 37.2 t ADT: 50

COUNTY HIGHWAY

Fair

Over: CREEK

3 EAST 14 N WILLISTON, Williams, ND

Built 2021 Load: 37.2 t ADT: 226

ND HIGHWAY 19

Fair

Over: BIG COULEE

3 WEST OF ND 30, Benson, ND

Built 1960 Load: 37.3 t ADT: 350

COUNTY HIGHWAY

Fair

Over: JAMES RIVER

11 EAST 6 NORTH FESSENDEN, Wells, ND

Built 1966 Load: 37.3 t ADT: 110

COUNTY ROAD

Fair

Over: PARK RIVER

3 EAST OF GRAFTON, Walsh, ND

Built 2006 Load: 37.5 t ADT: 5

COUNTY ROAD

Fair

Over: FOREST RIVER

2 NORTH INKSTER, Grand Forks, ND

Built 1973 Load: 37.6 t ADT: 32

COUNTY ROAD

Fair

Over: COLE CREEK

2 EAST 2 SOUTH THOMPSON, Grand Forks, ND

Built 1989 Load: 37.6 t ADT: 50

COUNTY HIGHWAY

Fair

Over: LITTLE DEEP CREEK

5 EAST 2 NORTH OF DEERING, McHenry, ND

Built 1934 Load: 37.6 t ADT: 25

INTERSTATE 29

Fair

Over: WILD RICE RIVER

7 SOUTH OF ND 46, Richland, ND

Built 1973 Load: 37.7 t ADT: 2,800

US HIGHWAY 12

Fair

Over: LITTLE MISSOURI RIVER

AT MARMARTH, Slope, ND

Built 1950 Load: 37.7 t ADT: 580

COUNTY HIGHWAY

Fair

Over: CREEK

3 WEST 3 NORTH NOONAN, Divide, ND

Built 1969 Load: 37.8 t ADT: 20

COUNTY ROAD

Fair

Over: TURTLE RIVER

1 EAST MEKINOCK, Grand Forks, ND

Built 1959 Load: 37.8 t ADT: 100

COUNTY HIGHWAY 21

Fair

Over: CREEK

5 EAST OF CARSON, Grant, ND

Built 1950 Load: 37.8 t ADT: 5

COUNTY HIGHWAY

Fair

Over: DRAIN DITCH

5 WEST 6 NORTH DRAYTON, Pembina, ND

Built 1976 Load: 37.8 t ADT: 24

COUNTY HIGHWAY

Fair

Over: FOREST RIVER

5 EAST 11 SOUTH GRAFTON, Walsh, ND

Built 1977 Load: 37.9 t ADT: 60

COUNTY ROAD

Fair

Over: TURTLE RIVER

3 NORTH OF MANVEL, Grand Forks, ND

Built 1976 Load: 38.0 t ADT: 100

ND HIGHWAY 200

Fair

Over: KNIFE RIVER

2 EAST OF HAZEN, Mercer, ND

Built 1966 Load: 38.0 t ADT: 2,280

ND HIGHWAY 31

Fair

Over: SWEET BRIAR CREEK

6 NORTH OF I-94, Morton, ND

Built 1932 Load: 38.0 t ADT: 930

Showing 1,651-1,700 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.