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 85

Good

Over: DRAIN

4 SOUTH OF US 2, McKenzie, ND

Built 2016 Load: 82.6 t ADT: 10,545

US HIGHWAY 2

Good

Over: CREEK

LEEDS, Benson, ND

Built 1984 Load: 83.4 t ADT: 1,900

US HIGHWAY 281

Good

Over: COTTONWOOD CREEK

9 NORTH OF ND 13, LaMoure, ND

Built 2006 Load: 83.5 t ADT: 1,625

132ND AVENUE

Good

Over: GRAND RIVER

13 SOUTH 1 EAST SCRANTON, Bowman, ND

Built 2006 Load: 83.9 t ADT: 100

ND HIGHWAY 200

Good

Over: BALDHILL CREEK

8 EAST OF GLENFIELD, Griggs, ND

Built 1993 Load: 84.5 t ADT: 620

WARD COUNTY 6

Good

Over: SOURIS RIVER

LAKE DARLING DAM (DAM 83), Ward, ND

Built 1997 Load: 86.2 t ADT: 300

IRRFB ND HWY 23

Good

Over: CREEK

2 EAST OF ND 37 SOUTH, Mountrail, ND

Built 2013 Load: 86.8 t ADT: 3,165

US HIGHWAY 52

Good

Over: CREEK

3 SE OF ND 41, McHenry, ND

Built 2001 Load: 87.4 t ADT: 1,400

133RD AVENUE

Good

Over: LIGHTNING CREEK

8 SOUTH OF SCRANTON, Bowman, ND

Built 2010 Load: 89.1 t ADT: 170

US HIGHWAY 5

Good

Over: BRANCH OF STONE CREEK

3 EAST OF N.D.HWY 14, Bottineau, ND

Built 2006 Load: 89.3 t ADT: 2,750

US HIGHWAY 85

Good

Over: CREEK

2 SOUTH OF WATFORD, McKenzie, ND

Built 2014 Load: 90.4 t ADT: 12,880

COUNTY HIGHWAY

Good

Over: WILLOW CREEK

7 EAST OF WILLOW CITY, Bottineau, ND

Built 2004 Load: 90.5 t ADT: 25

ND HIGHWAY 67

Good

Over: OVERFLOW TO BUFFALO CR.

SOUTH EDGE OF SCRANTON, Bowman, ND

Built 1994 Load: 90.5 t ADT: 775

COUNTY HIGHWAY

Good

Over: BRANCH OF MAPLE RIVER

2 NORTH OF EMBDEN, Cass, ND

Built 2013 Load: 90.5 t ADT: 200

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

6 EAST 6 SOUTH ALICE, Cass, ND

Built 2009 Load: 90.5 t ADT: 75

COUNTY HWY

Good

Over: RUSH RIVER

7 EAST OF AYR, Cass, ND

Built 2011 Load: 90.5 t ADT: 75

COUNTY HIGHWAY

Good

Over: COUNTY DRAIN 14

1 EAST 3 SOUTH MAPLETON, Cass, ND

Built 2012 Load: 90.5 t ADT: 10

US HIGHWAY 10

Good

Over: SHEYENNE RIVER

IN WEST FARGO, Cass, ND

Built 2016 Load: 90.5 t ADT: 13,780

COUNTY HIGHWAY

Good

Over: SPRING CREEK

NORTHWEST SIDE HALLIDAY, Dunn, ND

Built 2005 Load: 90.5 t ADT: 24

ND HIGHWAY 22

Good

Over: MURPHY CREEK

3 SOUTH OF KILLDEER, Dunn, ND

Built 1986 Load: 90.5 t ADT: 1,630

49TH AVENUE

Good

Over: CREEK

1 SOUTH 5 EAST OF CARSON, Grant, ND

Built 2015 Load: 90.5 t ADT: 10

CR14 (28TH ST SW)

Good

Over: COYOTE CREEK

1 WEST 17 SOUTH BEULAH, Mercer, ND

Built 1994 Load: 90.5 t ADT: 20

ND HIGHWAY 1806

Good

Over: CREEK

8 NORTH OF I-94, Morton, ND

Built 2000 Load: 90.5 t ADT: 620

IRRFB ND HIWAY 23

Good

Over: CREEK

1 WEST OF ND 1804, Mountrail, ND

Built 1995 Load: 90.5 t ADT: 5,510

COUNTY ROAD

Good

Over: WILLOW CREEK

4 WEST 4 SOUTH ST THOMAS, Pembina, ND

Built 2006 Load: 90.5 t ADT: 30

ND HIGHWAY 127

Good

Over: DRAINAGE DITCH

2 NORTH OF SD BORDER, Richland, ND

Built 2011 Load: 90.5 t ADT: 420

INTERSTATE 94

Good

Over: DUCK CREEK

5 WEST OF JCT. ND 22, Stark, ND

Built 1963 Load: 90.5 t ADT: 5,000

ND HIGHWAY 32

Good

Over: CREEK

3 SOUTH OF ND 38, Steele, ND

Built 2016 Load: 90.5 t ADT: 455

INTERSTATE 94

Good

Over: CREEK

7 EAST OF US 281, Stutsman, ND

Built 1958 Load: 90.5 t ADT: 8,400

COUNTY HIGHWAY

Good

Over: BONNES COULEE

2 EAST 5 SOUTH SAWYER, Ward, ND

Built 1994 Load: 90.5 t ADT: 25

ND HIGHWAY 28

Good

Over: OLEAAS COULEE

4 SOUTH OF U.S. 52, Ward, ND

Built 1966 Load: 90.5 t ADT: 370

ND HIGHWAY 1804

Good

Over: WHITETAIL BAY

24 EAST OF WILLISTON, Williams, ND

Built 1995 Load: 90.5 t ADT: 460

I-94 BUSINESS LOOP

Good

Over: SHEYENNE RIVER

MAIN ST. EAST VALLEY CITY, Barnes, ND

Built 2004 Load: 94.0 t ADT: 4,450

US HIGHWAY 85

Good

Over: LONESOME CREEK

2 NORTH OF ND 68, McKenzie, ND

Built 2014 Load: 94.0 t ADT: 9,955

ND HIGHWAY 49

Good

Over: COYOTE CREEK

14 SOUTH OF BEULAH, Mercer, ND

Built 2016 Load: 94.0 t ADT: 2,745

ND HIGHWAY 200

Good

Over: BNRR SEPARATION

4 WEST OF BEULAH, Mercer, ND

Built 1979 Load: 94.0 t ADT: 970

85th St SW

Good

Over: CREEK

11 SOUTH 3 EAST OF LEITH, Grant, ND

Built 2020 Load: 96.9 t ADT: 20

COUNTY HIGHWAY

Good

Over: SPRING CREEK

2E 9S WATFORD CITY, McKenzie, ND

Built 2018 Load: 96.9 t ADT: 20

ND HIGHWAY-23A

Good

Over: CHERRY CREEK

1 EAST OF US 85; BYPASS, McKenzie, ND

Built 2018 Load: 96.9 t ADT: 7,875

COUNTY ROAD

Good

Over: COUNTY DRAIN 87

2 EAST 1 S OF GRAFTON, Walsh, ND

Built 2019 Load: 96.9 t ADT: 100

COUNTY ROAD

Good

Over: COUNTY DRAIN 87

1 EAST 1 SOUTH OF GRAFTON, Walsh, ND

Built 2019 Load: 96.9 t ADT: 5

ND HIGHWAY 17

Good

Over: DRAIN

2 EAST OF US 81, Walsh, ND

Built 2018 Load: 96.9 t ADT: 3,870

COUNTY HIGHWAY

Good

Over: STONY CREEK

3 EAST 7 NORTH NIOBE, Ward, ND

Built 2014 Load: 96.9 t ADT: 25

COUNTY ROAD

Good

Over: DRAIN DITCH

2 WEST 4 SOUTH OF GRAFTON, Walsh, ND

Built 2012 Load: 97.2 t ADT: 10

US HIGHWAY 12

Good

Over: CREEK

1 WEST JCT. ND 22 SOUTH, Adams, ND

Built 2007 Load: 99.9 t ADT: 1,180

US HIGHWAY 281

Good

Over: CREEK

3 NORTH OF MINNEWAUKAN, Benson, ND

Built 2005 Load: 99.9 t ADT: 1,300

US HIGHWAY 281

Good

Over: LITTLE COULEE

5 SOUTH OF US HWY 2, Benson, ND

Built 2006 Load: 99.9 t ADT: 715

COUNTY HIGHWAY

Good

Over: TRIB LITTLE MISSOURI R

19 SOUTH 1 WEST MARMARTH, Bowman, ND

Built 1999 Load: 99.9 t ADT: 90

COUNTY HIGHWAY

Good

Over: TRIB. LITTLE MISSOURI

20 SOUTH MARMARTH, Bowman, ND

Built 2008 Load: 99.9 t ADT: 90

82nd Street

Good

Over: SKULL CREEK

14 SOUTH 6 EAST MARMARTH, Bowman, ND

Built 2005 Load: 99.9 t ADT: 35

Showing 3,701-3,750 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.