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 66

Good

Over: MAUVAIS COULEE

EAST OF 281 SOUTH, Towner, ND

Built 2021 Load: 38.8 t ADT: 325

COUNTY HIGHWAY

Good

Over: ELM RIVER

4 EAST OF CLIFFORD, Traill, ND

Built 2018 Load: 38.8 t ADT: 150

COUNTY HIGHWAY

Good

Over: WILLOW CREEK

2 E 1 N OF WILLOW CITY, Bottineau, ND

Built 2022 Load: 38.9 t ADT: 24

137TH AVENUE

Good

Over: CEDAR CREEK

5 NORTH OF BUFFALO SPRING, Bowman, ND

Built 2015 Load: 38.9 t ADT: 65

COUNTY HIGHWAY 16

Good

Over: MAPLE RIVER TRIBUTARY

5 W 4 S OF ALICE, Cass, ND

Built 2023 Load: 38.9 t ADT: 59

INTERSTATE 29

Good

Over: BORROW DITCH CROSSING

5 NORTH OF ND 46, Cass, ND

Built 2023 Load: 38.9 t ADT: 4,996

INTERSTATE 29

Good

Over: DRAIN

_, Cass, ND

Built 2015 Load: 38.9 t ADT: 6,500

INTERSTATE 94

Good

Over: SWAN CREEK

4 EAST OF ND 18, Cass, ND

Built 1959 Load: 38.9 t ADT: 5,850

US HIGHWAY 83

Good

Over: CREEK

6 SOUTH OF ND 13 EAST, Emmons, ND

Built 2012 Load: 38.9 t ADT: 1,845

US HIGHWAY 2

Good

Over: BNRR SEP OVER

1 EAST OF ND 32 SOUTH, Nelson, ND

Built 2023 Load: 38.9 t ADT: 1,685

COUNTY HIGHWAY 4

Good

Over: EDMORE COULEE

3 WEST 2 SOUTH OF EDMORE, Ramsey, ND

Built 2023 Load: 38.9 t ADT: 59

US HIGHWAY 2

Good

Over: COULEE

1 EAST DEVILS LAKE, Ramsey, ND

Built 2013 Load: 38.9 t ADT: 5,400

ND HIGHWAY 21

Good

Over: CREEK

1 WEST JCT ND 67, Slope, ND

Built 2021 Load: 38.9 t ADT: 507

127th AVE SW

Good

Over: HEART RIVER

3 EAST BELFIELD, Stark, ND

Built 2019 Load: 38.9 t ADT: 26

CO HWY 4

Good

Over: BUFFALO COULEE

6 EAST 1 NORTH BUXTON, Traill, ND

Built 2023 Load: 38.9 t ADT: 30

US HIGHWAY 85

Good

Over: CAMP CREEK

5 N 1 W OF WILLISTON, Williams, ND

Built 2012 Load: 38.9 t ADT: 6,440

51st Ave NE

Good

Over: SHEYENNE RIVER

2 EAST 6 SOUTH MADDOCK, Benson, ND

Built 1975 Load: 39.0 t ADT: 20

INTERSTATE 29

Good

Over: BORROW DITCH CROSSING

5 NORTH OF ND 46, Cass, ND

Built 2023 Load: 39.0 t ADT: 4,944

US HIGHWAY 85

Good

Over: NORWEGIAN CREEK

4 SOUTH OF JCT. I-94, Stark, ND

Built 1968 Load: 39.0 t ADT: 1,260

COUNTY HIGHWAY

Good

Over: ENGLISH COULEE DIVERSION

1 W 1 N GRAND FORKS, Grand Forks, ND

Built 2003 Load: 39.1 t ADT: 25

COUNTY HIGHWAY

Good

Over: ENGLISH COULEE DIVERSION

1 W 1 N GRAND FORKS, Grand Forks, ND

Built 2003 Load: 39.1 t ADT: 2

ND HIGHWAY 1

Good

Over: BN RAILROAD SEPARATION

SOUTH OF HANNEFORD, Griggs, ND

Built 2009 Load: 39.1 t ADT: 750

COUNTY HIGHWAY

Good

Over: BRANCH OF MAPLE RIVER

TOWER CITY, Cass, ND

Built 2017 Load: 39.2 t ADT: 300

COUNTY ROAD 2

Good

Over: CREEK

5.5 SOUTY OF MERRICOURT, Dickey, ND

Built 2011 Load: 39.2 t ADT: 125

COUNTY ROAD 2

Good

Over: CREEK

7.5 SOUTH OF MERRICOURT, Dickey, ND

Built 2011 Load: 39.2 t ADT: 125

US HIGHWAY 52

Good

Over: CP RAILWAY

JCT US 52 & ND 200, Foster, ND

Built 2004 Load: 39.2 t ADT: 5,800

COUNTY ROAD

Good

Over: JAMES RIVER

2 EAST 5 SOUTH OF LAMOURE, LaMoure, ND

Built 1981 Load: 39.2 t ADT: 50

County Road 137

Good

Over: CREEK

1 WEST OF ALMONT, Morton, ND

Built 1975 Load: 39.2 t ADT: 40

COUNTY HIGHWAY

Good

Over: COUNTY DRAIN NO. 20

4 EAST OF GREAT BEND, Richland, ND

Built 1990 Load: 39.2 t ADT: 255

COUNTY HIGHWAY

Good

Over: CROOKED CREEK

6 SOUTH 1 WEST MILNOR, Sargent, ND

Built 2013 Load: 39.2 t ADT: 55

COUNTY HIGHWAY 17

Good

Over: SHEYENNE DIVERSION

1 SOUTH WEST FARGO, Cass, ND

Built 1991 Load: 39.3 t ADT: 3,200

8TH AVENUE SE

Good

Over: MOUSE RIVER

8TH AVE SE-MINOT, Ward, ND

Built 1993 Load: 39.4 t ADT: 3,000

COUNTY HIGHWAY

Good

Over: BRANCH OF MAPLE RIVER

1 NORTH OF ENDERLIN, Cass, ND

Built 2010 Load: 39.5 t ADT: 75

COUNTY HIGHWAY

Good

Over: CREEK

2 SOUTH OF HARWOOD, Cass, ND

Built 2014 Load: 39.5 t ADT: 210

7TH AVE WEST

Good

Over: SHEYENNE RIVER

7TH AVE WEST-WEST FARGO, Cass, ND

Built 1995 Load: 39.5 t ADT: 3,050

101ST AVE SW

Good

Over: SPRING CREEK

SOUTH EDGE DUNN CENTER, Dunn, ND

Built 2020 Load: 39.5 t ADT: 40

CAMPUS ROAD

Good

Over: ENGLISH COULEE

UND CAMPUS, Grand Forks, ND

Built 2013 Load: 39.5 t ADT: 2,400

COUNTY HIWAY 2306

Good

Over: BONEHILL CREEK

EAST OF NORTONVILLE, LaMoure, ND

Built 1978 Load: 39.5 t ADT: 203

ND HIGHWAY 5

Good

Over: LITTLE DEEP CREEK

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

Built 2017 Load: 39.5 t ADT: 1,005

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

2 SOUTH OF KINDRED, Richland, ND

Built 2003 Load: 39.5 t ADT: 20

US HIGHWAY 85

Good

Over: BNRR SEPARATION

1 SOUTH OF JCT. I-94, Stark, ND

Built 1967 Load: 39.5 t ADT: 2,230

16TH ST SE

Good

Over: RED RIVER OF THE NORTH

6 EAST 2 NORTH GARDNER, Cass, ND

Built 2007 Load: 39.6 t ADT: 149

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

6 EAST 6 SOUTH OF ALICE, Cass, ND

Built 2011 Load: 39.7 t ADT: 75

COUNTY HIGHWAY

Good

Over: ANTELOPE CREEK

3 EAST OF GALCHUTT, Richland, ND

Built 1999 Load: 39.7 t ADT: 400

Elizabeth Street

Good

Over: BRANCH OF MAPLE RIVER

TOWER CITY, Cass, ND

Built 2017 Load: 39.8 t ADT: 300

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

3 WEST 2 SOUTH OF ALICE, Cass, ND

Built 2021 Load: 39.8 t ADT: 20

ND HIGHWAY 49

Good

Over: BRUSH CREEK

8 SOUTH OF BEULAH, Mercer, ND

Built 2016 Load: 39.8 t ADT: 2,745

ND HIGHWAY 46

Good

Over: MAPLE RIVER

3 EAST OF ENDERLIN, Ransom, ND

Built 1981 Load: 39.8 t ADT: 1,200

COUNTY HIGHWAY

Good

Over: GOOSE RIVER

2 NORTH 4 WEST HILLSBORO, Traill, ND

Built 2021 Load: 39.8 t ADT: 20

COUNTY ROAD

Good

Over: CREEK

4 EAST 2 SOUTH OF NOME, Barnes, ND

Built 2019 Load: 39.9 t ADT: 10

Showing 3,051-3,100 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.