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 8

Fair

Over: SPRING CREEK

NORTH EDGE OF HALLIDAY, Dunn, ND

Built 1971 Load: 47.3 t ADT: 450

U.S. HIGHWAY 52

Fair

Over: UPPER DES LACS LAKE

5 EAST OF BOWBELLS, Burke, ND

Built 1983 Load: 47.4 t ADT: 1,260

COUNTY HIGHWAY

Fair

Over: GOOSE RIVER

1 NORTH 2 WEST NORTHWOOD, Grand Forks, ND

Built 1994 Load: 47.4 t ADT: 30

ND HIGHWAY 200

Fair

Over: CREEK

6 EAST OF ND 48, Oliver, ND

Built 1970 Load: 47.4 t ADT: 1,140

COUNTY HIGHWAY

Fair

Over: LITTLE MUDDY RIVER

1 EAST 10 NORTH WILLISTON, Williams, ND

Built 2000 Load: 47.4 t ADT: 25

ND HIGHWAY 21

Fair

Over: INDIAN CREEK

1 WEST OF REGENT, Hettinger, ND

Built 1959 Load: 47.7 t ADT: 450

ND HIGHWAY 32

Fair

Over: NORTH FORK PARK RIVER

.5 NORTH OF GARDER, Pembina, ND

Built 1976 Load: 47.8 t ADT: 710

95TH ST SW

Fair

Over: CREEK

12 WEST 6 SOUTH STRASBURG, Emmons, ND

Built 1940 Load: 47.9 t ADT: 25

ND HIGHWAY 200

Fair

Over: YELLOWSTONE RIVER

3.5 EAST OF MONTANA LINE, McKenzie, ND

Built 1998 Load: 48.0 t ADT: 1,278

CIUNTY HIGHWAY

Fair

Over: FOREST RIVER

10 EAST 6 SOUTH GRAFTON, Walsh, ND

Built 2002 Load: 48.0 t ADT: 10

INTERSTATE 29

Fair

Over: SHEYENNE RIVER

2 NORTH OF HARWOOD, Cass, ND

Built 1968 Load: 48.5 t ADT: 4,850

INTERSTATE 29

Fair

Over: SHEYENNE RIVER

2 NORTH OF HARWOOD, Cass, ND

Built 1968 Load: 48.5 t ADT: 4,850

ND HIGHWAY 13

Fair

Over: BEAVER CREEK

16 EAST OF US 83, Emmons, ND

Built 1961 Load: 48.5 t ADT: 420

COUNTY HIGHWAY

Fair

Over: CREEK

5 EAST 3 NORTH HANSBORO, Towner, ND

Built 1936 Load: 48.5 t ADT: 5

COUNTY HIGHWAY

Fair

Over: MAPLE RIVER

2 EAST 2 NORTH MAPLETON, Cass, ND

Built 1953 Load: 48.6 t ADT: 20

FIELD APPROACH

Fair

Over: DRAINAGE DITCH

1 EAST 3 SOUTH MCCANNA, Grand Forks, ND

Built 1919 Load: 48.6 t ADT: 2

ND HIGHWAY 18

Fair

Over: SO. BRANCH GOOSE RIVER

2 WEST OF PORTLAND, Traill, ND

Built 1985 Load: 48.6 t ADT: 1,210

COUNTY HIGHWAY

Fair

Over: CREEK

1 WEST OF LANKIN, Walsh, ND

Built 1965 Load: 48.8 t ADT: 275

COUNTY HIGHWAY

Fair

Over: SHEYENNE RIVER

4 WEST SHEYENNE, Eddy, ND

Built 2011 Load: 49.0 t ADT: 90

CAMPGROUND ENTRANC

Fair

Over: LONG CREEK

JUNIPER CAMPGROUND ENTRAN, McKenzie, ND

Built 1976 Load: 49.0 t ADT: 200

ND HIGHWAY 20

Fair

Over: SWEETWATER LAKE OVERFLOW

2 SOUTH WEBSTER, Ramsey, ND

Built 1967 Load: 49.0 t ADT: 1,400

INTERSTATE 29

Fair

Over: PITCAIRN CREEK

12 NORTH OF ND 13, Richland, ND

Built 1973 Load: 49.0 t ADT: 2,600

INTERSTATE 29

Fair

Over: PITCAIRN CREEK

12 NORTH OF ND 13, Richland, ND

Built 1973 Load: 49.0 t ADT: 2,600

US HIGHWAY 2

Fair

Over: CHANNEL A

6 NORTHWEST OF N.D.19, Ramsey, ND

Built 2005 Load: 49.2 t ADT: 2,750

US HIGHWAY 2

Fair

Over: CHANNEL A

6 NORTHWEST OF N.D.19, Ramsey, ND

Built 2005 Load: 49.2 t ADT: 2,750

ND HIGHWAY 1

Fair

Over: CP RAILWAY

11 NORTH OF I-94, Barnes, ND

Built 1989 Load: 49.4 t ADT: 1,050

INTERSTATE 94

Fair

Over: CP RAILWAY SEPARATION

6 EAST OF ND 1, Barnes, ND

Built 1993 Load: 49.4 t ADT: 5,050

US HIGHWAY 281

Fair

Over: SOUTH FORK-MAPLE RIVER

1 SOUTH OF MONANGO, Dickey, ND

Built 1941 Load: 49.6 t ADT: 850

US HIGHWAY 83

Fair

Over: HAWK CREEK

3 NORTH OF ND 34, Emmons, ND

Built 1961 Load: 49.7 t ADT: 1,570

INTERSTATE 94

Fair

Over: GREEN RIVER

9 EAST OF JCT. 22, Stark, ND

Built 1963 Load: 49.7 t ADT: 2,700

INTERSTATE 94

Fair

Over: GREEN RIVER

9 EAST OF JCT. 22, Stark, ND

Built 1963 Load: 49.7 t ADT: 2,700

ND HIGHWAY 200

Fair

Over: CREEK

9 EAST OF JCT. ND 22, Dunn, ND

Built 1958 Load: 50.0 t ADT: 640

INTERSTATE 94

Fair

Over: NORTH CREEK

2 WEST OF ND 49, Morton, ND

Built 1961 Load: 50.1 t ADT: 2,300

ND HIGHWAY 66

Fair

Over: SOUTH BRANCH PARK RIVER

6 EAST OF ND 1, Cavalier, ND

Built 1973 Load: 50.3 t ADT: 260

US HIGHWAY 52

Fair

Over: CP RAILROAD

AT FLAXTON, Burke, ND

Built 2005 Load: 50.7 t ADT: 1,180

ND HIGHWAY 66

Fair

Over: CART CREEK

3 WEST ND 18, Pembina, ND

Built 1966 Load: 51.1 t ADT: 500

ND HIGHWAY 41

Fair

Over: MCCLUSKY CANAL R1-2

4 NORTH OF N.D. 200, McLean, ND

Built 1973 Load: 51.3 t ADT: 490

ND HIGHWAY 1806

Fair

Over: TOBACCO GARDEN CREEK

22 NORTH ND 23, McKenzie, ND

Built 1981 Load: 51.5 t ADT: 80

IRRSR ND HIGHWAY 6

Fair

Over: PORCUPINE CREEK

15 NORTH OF SELFRIDGE, Sioux, ND

Built 1987 Load: 51.5 t ADT: 270

IRRFT COUNTY HIWAY

Fair

Over: CREEK

4 SOUTH 1 WEST OF TOLNA, Nelson, ND

Built 1980 Load: 51.7 t ADT: 30

COUNTY ROAD

Fair

Over: TONGUE RIVER

3 WEST 1 SOUTH BATHGATE, Pembina, ND

Built 1948 Load: 51.7 t ADT: 24

US HIGHWAY 2

Fair

Over: CREEK

12 EAST OF US HWY 85, Williams, ND

Built 2006 Load: 51.8 t ADT: 1,900

US HIGHWAY 85

Fair

Over: CREEK

2 S 2 W OF WATFORD CITY, McKenzie, ND

Built 2014 Load: 51.9 t ADT: 12,880

INTERSTATE 29

Fair

Over: DRAINAGE DITCH

8 SOUTH OF ND 5, Pembina, ND

Built 1975 Load: 52.2 t ADT: 1,450

COUNTY HIGHWAY

Fair

Over: COULEE

2 WEST WEBSTER, Ramsey, ND

Built 1980 Load: 52.3 t ADT: 20

US HIGHWAY 12

Fair

Over: BRANCH OF BEAVER CREEK

3 WEST OF MARMARTH, Slope, ND

Built 1950 Load: 52.4 t ADT: 510

INTERSTATE 29

Fair

Over: ANTELOPE CREEK

1 NORTH ND 13, Richland, ND

Built 1973 Load: 52.5 t ADT: 2,550

COUNTY HIGHWAY

Fair

Over: WILD RICE RIVER

2 WEST OF HICKSON, Cass, ND

Built 2003 Load: 52.7 t ADT: 20

ND HIGHWAY 200

Fair

Over: CREEK

1 EAST OF GOLDEN VALLEY, Mercer, ND

Built 1955 Load: 52.7 t ADT: 790

ND HIGHWAY 46

Fair

Over: WILD RICE RIVER

1 WEST OF I-29, Cass, ND

Built 1983 Load: 53.0 t ADT: 1,430

Showing 1,901-1,950 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.