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

ND HIGHWAY 22

Fair

Over: ANTELOPE CREEK

12 NORTH OF ND 21 WEST, Stark, ND

Built 1978 Load: 39.4 t ADT: 1,420

COUNTY HIGHWAY

Fair

Over: CREEK

6 WEST 4 SOUTH OF GRAFTON, Walsh, ND

Built 1976 Load: 39.4 t ADT: 79

ND HIGHWAY 256

Fair

Over: SOUTH ANTLER CREEK

.5 S OF CANADIAN BORDER, Bottineau, ND

Built 1970 Load: 39.5 t ADT: 120

63rd Ave SW

Fair

Over: SPRING CREEK

2 WEST .5 SOUTH OF BEULAH, Mercer, ND

Built 1979 Load: 39.5 t ADT: 10

ND HIGHWAY 1804

Fair

Over: PAINTED WOODS CREEK

2 NORTHEAST TRENTON, Williams, ND

Built 1989 Load: 39.5 t ADT: 2,020

1ST AVE NORTH

Fair

Over: RED RIVER OF THE NORTH

1ST AVE NORTH-FARGO, Cass, ND

Built 1983 Load: 39.6 t ADT: 16,700

COUNTY HIGHWAY

Fair

Over: TIMBER CREEK

4 N 3 E ALEXANDER, McKenzie, ND

Built 2000 Load: 39.8 t ADT: 20

ND HIGHWAY 23

Fair

Over: CREEK

8 EAST OF WATFORD CITY, McKenzie, ND

Built 1987 Load: 39.8 t ADT: 1,060

97th St SW

Fair

Over: Sevenmile Creek

20 SOUTH 6 EAST MARMARTH, Bowman, ND

Built 1970 Load: 39.9 t ADT: 10

ND HIGHWAY 9

Fair

Over: JAMES RIVER

9 EAST OF US 281, Foster, ND

Built 1965 Load: 39.9 t ADT: 280

COUNTY HIGHWAY

Fair

Over: CREEK

2 WEST 11 SOUTH GRAFTON, Walsh, ND

Built 2016 Load: 39.9 t ADT: 420

INTERSTATE 94

Fair

Over: WILSON CREEK

4 EAST OF ND 49, Morton, ND

Built 1960 Load: 40.0 t ADT: 2,700

INTERSTATE 94

Fair

Over: WILSON CREEK

4 EAST OF ND 49, Morton, ND

Built 1960 Load: 40.0 t ADT: 2,700

COUNTY HIGHWAY

Fair

Over: ANTELOPE CREEK

3 NORTH OF DWIGHT, Richland, ND

Built 1960 Load: 40.0 t ADT: 20

US HIGHWAY 281

Fair

Over: JAMES RIVER

1 NORTH OF I-94, Stutsman, ND

Built 1933 Load: 40.0 t ADT: 10,370

US HIGHWAY 2

Fair

Over: BNRR

2 WEST U.S. HWY 83, Ward, ND

Built 1980 Load: 40.0 t ADT: 6,200

18th St. NE

Fair

Over: CEDAR CREEK

16 EAST 5 NORTH HETTINGER, Adams, ND

Built 1998 Load: 40.1 t ADT: 10

COUNTY ROAD

Fair

Over: PIPESTEM CREEK

1 WEST 6 SOUTH CARRINGTON, Foster, ND

Built 1966 Load: 40.1 t ADT: 65

COUNTY HIGHWAY

Fair

Over: CREEK

3 WEST 1 SOUTH THOMPSON, Grand Forks, ND

Built 1958 Load: 40.1 t ADT: 90

US HIGHWAY 2

Fair

Over: LITTLE MUDDY RIVER

1 EAST OF US 85 NORTH, Williams, ND

Built 1955 Load: 40.2 t ADT: 1,900

COUNTY ROAD

Fair

Over: BOUNDARY CREEK

2 S .5 W OF WEST JCT.14&5, Bottineau, ND

Built 1970 Load: 40.4 t ADT: 25

IRRFB ND HIWAY 22

Fair

Over: LITTLE MISSOURI RIVER

15 SOUTH OF ND 73, Dunn, ND

Built 1994 Load: 40.4 t ADT: 510

STATE PARK ROAD

Fair

Over: SHEYENNE RIVER

FORT RANSOM STATE PARK, Ransom, ND

Built 1979 Load: 40.4 t ADT: 25

ND HIGHWAY 18

Fair

Over: GOOSE RIVER

CITY OF MAYVILLE, Traill, ND

Built 1966 Load: 40.4 t ADT: 4,800

COUNTY HIWAY 1124

Fair

Over: JAMES RIVER

2 WEST 5 SOUTH LUDDEN, Dickey, ND

Built 1974 Load: 40.5 t ADT: 47

COUNTY HIGHWAY

Fair

Over: ENGLISH COULEE

2 SOUTH 10 EAST EMERADO, Grand Forks, ND

Built 1991 Load: 40.5 t ADT: 450

ND HIGHWAY 21

Fair

Over: CREEK

4 EAST OF CARSON, Grant, ND

Built 1994 Load: 40.5 t ADT: 590

COUNTY HIGHWAY

Fair

Over: TONGUE RIVER

1 EAST 1 NORTH OF HALLSON, Pembina, ND

Built 1942 Load: 40.5 t ADT: 30

US HIGHWAY 85

Fair

Over: LITTLE MUDDY RIVER

7 NORTH OF US 2, Williams, ND

Built 2016 Load: 40.5 t ADT: 3,075

COUNTY ROAD

Fair

Over: TURTLE RIVER

3 EAST MEKINOCK, Grand Forks, ND

Built 1968 Load: 40.6 t ADT: 24

COUNTY ROAD

Fair

Over: MCCLUSKY CANAL R2-0A

7 SOUTH TURTLE LAKE, McLean, ND

Built 1976 Load: 40.6 t ADT: 40

LINCOLN ROAD

Fair

Over: APPLE CREEK

3 SOUTH 3 EAST BISMARCK, Burleigh, ND

Built 1914 Load: 40.8 t ADT: 2,900

93rd AVE SW

Fair

Over: CREEK

6 WEST 1 NORTH MARSHALL, Dunn, ND

Built 1980 Load: 40.8 t ADT: 35

IRRFB ND HIWAY 22

Fair

Over: CREEK

14 SOUTH OF ND 73, Dunn, ND

Built 1991 Load: 40.8 t ADT: 510

COUNTY HIGHWAY

Fair

Over: JAMES RIVER

2 EAST 2 SOUTH GRACE CITY, Foster, ND

Built 2008 Load: 40.8 t ADT: 10

COUNTY ROAD

Fair

Over: MAPLE CREEK

1 NORTH 1 EAST OF EDGELEY, LaMoure, ND

Built 1982 Load: 40.8 t ADT: 50

COUNTY HIGHWAY

Fair

Over: POISON SPRING CREEK

6 S 3 W HOMESTEADERS GAP, McKenzie, ND

Built 1992 Load: 40.8 t ADT: 22

COUNTY HIGHWAY

Fair

Over: SAND CREEK

2 SOUTH 2 WEST CHARLSON, McKenzie, ND

Built 1999 Load: 40.8 t ADT: 160

ND HIGHWAY 37

Fair

Over: MID. BR. DOUGLAS CREEK

6 EAST OF ND 1804, McLean, ND

Built 1990 Load: 40.8 t ADT: 770

ND HIGHWAY 37

Fair

Over: CREEK

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

Built 1990 Load: 40.8 t ADT: 820

35TH ST

Fair

Over: SQUARE BUTTE CREEK

1 WEST 5 NORTH MANDAN, Morton, ND

Built 2004 Load: 40.8 t ADT: 144

IRRSR COUNTY HIWAY

Fair

Over: LEAF ON THE HILL CREEK

13 WEST OF SELFRIDGE, Sioux, ND

Built 1992 Load: 40.8 t ADT: 65

IRRSR ND HIWAY 24

Fair

Over: FOUR MILE CREEK

11 SOUTHWEST FORT YATES, Sioux, ND

Built 1930 Load: 40.8 t ADT: 750

21ST ST WEST

Fair

Over: DRAINAGE WAY

21 ST WEST, Stark, ND

Built 2013 Load: 40.8 t ADT: 4,000

US HIGHWAY 2

Fair

Over: CREEK

4 EAST OF US 85 NORTH, Williams, ND

Built 2006 Load: 40.8 t ADT: 1,900

ND HIGHWAY 210

Fair

Over: RED RIVER OF THE NORTH

NORTH OF WAHPETON, Richland, ND

Built 1974 Load: 40.9 t ADT: 200

US HIGHWAY 2

Fair

Over: BN RAILROAD

CITY OF RAY, Williams, ND

Built 1997 Load: 40.9 t ADT: 915

COUNTY ROAD

Fair

Over: EGG CREEK

11 EAST 1 SOUTH RUTHVILLE, Ward, ND

Built 1971 Load: 41.0 t ADT: 115

COUNTY HIGHWAY

Fair

Over: SHEYENNE RIVER

3 EAST 3 SOUTH OF TOLNA, Nelson, ND

Built 1978 Load: 41.1 t ADT: 25

ND HIGHWAY 30

Fair

Over: JAMES RIVER

2 NORTH ND 15, Wells, ND

Built 1982 Load: 41.4 t ADT: 220

Showing 1,751-1,800 of 4,242 bridges

Related

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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.