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

Good

Over: DRAINAGE DITCH

3 SOUTH OF GRAND FORKS, Grand Forks, ND

Built 2006 Load: 26.1 t ADT: 1,220

COUNTY HIGHWAY 84

Good

Over: SWEET BRIAR

3 NORTH OF JUDSON, Morton, ND

Built 1988 Load: 26.1 t ADT: 230

64TH ST

Good

Over: NW BR CANTEPETA CREEK

2 SOUTH 9 WEST FORT RICE, Morton, ND

Built 1971 Load: 26.1 t ADT: 24

COUNTY HIGHWAY

Good

Over: PEMBINA RIVER

5 EAST 1 SOUTH OF NECHE, Pembina, ND

Built 1987 Load: 26.1 t ADT: 280

COUNTY HIGHWAY

Good

Over: ANTELOPE CREEK

6 WEST 3 SOUTH OF COLFAX, Richland, ND

Built 1988 Load: 26.1 t ADT: 50

126TH AVE SW

Good

Over: CANNONBALL RIVER

7 NORTH 16 EAST OF AMIDON, Slope, ND

Built 1991 Load: 26.1 t ADT: 65

GRAVEL ROAD

Good

Over: JAMES RIVER

1 SOUTH OF MONTPELIER, Stutsman, ND

Built 1986 Load: 26.1 t ADT: 25

COUNTY HIGHWAY

Good

Over: NORTH BRANCH ELM RIVER

2 NORTH 3 EAST BLANCHARD, Traill, ND

Built 2013 Load: 26.1 t ADT: 20

11TH ST WEST

Good

Over: SAND CREEK

WEST WILLISTON, Williams, ND

Built 2015 Load: 26.1 t ADT: 7,110

COUNTY HIGHWAY

Good

Over: CREEK

3W 4N WHITE EARTH, Mountrail, ND

Built 1980 Load: 26.2 t ADT: 20

COUNTY ROAD 0506

Good

Over: BOUNDARY CREEK

3 WEST OF SOURIS, Bottineau, ND

Built 1961 Load: 26.3 t ADT: 390

COUNTY HIGHWAY

Good

Over: SHEYENNE DIVERSION

5 SOUTH 1 WEST WEST FARGO, Cass, ND

Built 1991 Load: 26.3 t ADT: 170

COUNTY HIGHWAY

Good

Over: CREEK

3 WEST 6 SOUTH DRESDEN, Cavalier, ND

Built 1989 Load: 26.3 t ADT: 45

77th Ave SW

Good

Over: CREEK

15N 3W OF NEW LEIPZIG, Grant, ND

Built 1965 Load: 26.3 t ADT: 20

ND HIGHWAY 8

Good

Over: CREEK

8 NORTH JCT. I-94, Stark, ND

Built 1960 Load: 26.3 t ADT: 430

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

5 E 6 S OF COOPERSTOWN, Griggs, ND

Built 1989 Load: 26.4 t ADT: 55

COUNTY HIGHWAY

Good

Over: SO. BRANCH MAPLE RIVER

3 WEST OF ENDERLIN, Ransom, ND

Built 1983 Load: 26.4 t ADT: 80

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

1 SOUTH 7 EAST ANSELM, Ransom, ND

Built 1976 Load: 26.5 t ADT: 51

COUNTY HIGHWAY

Good

Over: BEAVER CREEK

2 SOUTH 3 EAST OF SHARON, Steele, ND

Built 1980 Load: 26.6 t ADT: 25

COUNTY HIGHWAY

Good

Over: TURTLE RIVER

CITY OF MANVEL, Grand Forks, ND

Built 2005 Load: 26.8 t ADT: 600

County Road 86

Good

Over: HAIL STORM CREEK

2 NORTH OF ALMONT, Morton, ND

Built 1989 Load: 26.8 t ADT: 321

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

1 WEST 3 SOUTH MCVILLE, Nelson, ND

Built 1983 Load: 26.8 t ADT: 50

30th ST SW

Good

Over: BRANCH OF KNIFE RIVER

6 NORTH 8 EAST RICHARDTON, Stark, ND

Built 1971 Load: 26.8 t ADT: 80

COUNTY HIGHWAY

Good

Over: SOUTH BRANCH GOOSE RIVER

11 EAST 1 SOUTH OF BLABON, Steele, ND

Built 1980 Load: 26.8 t ADT: 24

COUNTY HIGHWAY

Good

Over: SOUTH BRANCH GOOSE RIVER

16 EAST 3 SOUTH FINLEY, Steele, ND

Built 1992 Load: 26.8 t ADT: 20

COUNTY HIGHWAY

Good

Over: FOREST RIVER

SOUTH EDGE FORDVILLE, Walsh, ND

Built 1983 Load: 26.8 t ADT: 400

ND HIGHWAY 22

Good

Over: GUMBO CREEK

1 NORTH OF KILLDEER, Dunn, ND

Built 1965 Load: 26.9 t ADT: 900

23rd St

Good

Over: INDIAN CREEK

8 EAST 8 SOUTH FAIRFIELD, Billings, ND

Built 1981 Load: 27.0 t ADT: 45

TOWNSHIP ROAD

Good

Over: OAKES CANAL W0-2

3 SOUTH & 1 EAST OAKES, Dickey, ND

Built 1986 Load: 27.0 t ADT: 40

12TH STREET SW

Good

Over: KNIFE RIVER

3 WEST 1 NORTH MANNING, Dunn, ND

Built 1987 Load: 27.0 t ADT: 107

COUNTY HIGHWAY

Good

Over: CUT BANK CREEK

8 WEST 1 NORTH OF UPHAM, McHenry, ND

Built 1976 Load: 27.0 t ADT: 65

66th Ave

Good

Over: BIG MUDDY CREEK

NW GLEN ULLIN, Morton, ND

Built 1985 Load: 27.0 t ADT: 25

COUNTY HIGHWAY 84

Good

Over: CREEK

AT JUDSON, Morton, ND

Built 1968 Load: 27.0 t ADT: 295

CR81

Good

Over: CREEK

8 SOUTH 5 EAST ST ANTHONY, Morton, ND

Built 1960 Load: 27.0 t ADT: 60

ND HIGHWAY 3

Good

Over: OX CREEK

NORTH OF RUGBY, Rolette, ND

Built 1986 Load: 27.0 t ADT: 1,050

76TH ST SW

Good

Over: NORTH FORK CEDAR CREEK

11 SOUTH 15 EAST AMIDON, Slope, ND

Built 1988 Load: 27.0 t ADT: 50

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

5 WEST 4 NORTH OF PAGE, Cass, ND

Built 1999 Load: 27.1 t ADT: 60

COUNTY ROAD

Good

Over: N BRANCH TURTLE RIVER

2 WEST 2 NORTH MCCANNA, Grand Forks, ND

Built 1954 Load: 27.1 t ADT: 100

11TH AVE.S

Good

Over: ENGLISH COULEE

11TH AVE S GRAND FORKS, Grand Forks, ND

Built 1995 Load: 27.1 t ADT: 2,528

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

3 EAST 4 SOUTH WYNDMERE, Richland, ND

Built 2001 Load: 27.1 t ADT: 20

INTERSTATE 29

Good

Over: LEGAL DRAIN 40

1 SOUTH OF HARWOOD, Cass, ND

Built 2010 Load: 27.2 t ADT: 10,200

REFUGE ACCESS ROAD

Good

Over: WILLOW CREEK

SECT 19 T159N R76W, McHenry, ND

Built 2010 Load: 27.2 t ADT: 40

COUNTY HIGHWAY 90

Good

Over: DRAINAGE AREA

1 WEST 6 SOUTH OF HEBRON, Morton, ND

Built 1968 Load: 27.2 t ADT: 40

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

2 SOUTH 2 EAST DWIGHT, Richland, ND

Built 2004 Load: 27.2 t ADT: 100

NO DATA ENTERED

Good

Over: IRON SPRINGS CREEK

NO DATA ENTERED, Richland, ND

Built 2011 Load: 27.2 t ADT: 10

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

3 WEST 1 NORTH OF COLGATE, Steele, ND

Built 1996 Load: 27.2 t ADT: 45

COUNTY HIGHWAY

Good

Over: NORTH BRANCH ELM RIVER

2 EAST 7 SOUTH HILLSBORO, Traill, ND

Built 1986 Load: 27.2 t ADT: 75

ND HIGHWAY 200

Good

Over: CREEK

5 WEST OF US 85, McKenzie, ND

Built 1947 Load: 27.3 t ADT: 380

COUNTY HIGHWAY

Good

Over: BEAVER CREEK

10 EAST 8 NORTH FINLEY, Steele, ND

Built 1981 Load: 27.3 t ADT: 350

Franks Creek Road

Good

Over: FRANKS CREEK

10 NORTH 2 EAST OF MEDORA, Billings, ND

Built 1988 Load: 27.4 t ADT: 25

Showing 2,451-2,500 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.