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

15TH STREET WEST

Good

Over: DRAINAGE WAY

15TH ST WEST-DICKINSON, Stark, ND

Built 2003 Load: 49.0 t ADT: 4,125

ND HIGHWAY

Good

Over: SQUARE BUTTE CREEK

AT CENTER, Oliver, ND

Built 1987 Load: 49.1 t ADT: 650

COUNTY HIGHWAY

Good

Over: CREEK

3 EAST 13 N WILLISTON, Williams, ND

Built 2021 Load: 49.2 t ADT: 226

40TH AVE N

Good

Over: RED RIVER OF THE NORTH

COUNTY ROAD 20 IN FARGO, Cass, ND

Built 2006 Load: 49.4 t ADT: 5,381

COUNTY HIGHWAY

Good

Over: MIDDLE CREEK

3 S 2 W CHARBONNEAU, McKenzie, ND

Built 2004 Load: 49.4 t ADT: 20

COUNTY HIGHWAY

Good

Over: ENGLISH COULEE DIVERSION

2 W 4 S JCT US 2 & I-29, Grand Forks, ND

Built 2003 Load: 49.5 t ADT: 100

COUNTY HIGHWAY

Good

Over: ENGLISH COULEE DIVERSION

2 W 2 S JCT US 2 & I-29, Grand Forks, ND

Built 2003 Load: 49.5 t ADT: 100

US HIGHWAY 281

Good

Over: CREEK

2 W 5 N OF MINNEWAUKAN, Benson, ND

Built 2006 Load: 49.7 t ADT: 1,300

Co Rd 10

Good

Over: APPLE CREEK

2 WEST OF MENOKEN, Burleigh, ND

Built 1969 Load: 49.7 t ADT: 745

COUNTY HIGHWAY

Good

Over: UNNAMED CREEK

9 SOUTH 1 EAST CAYUGA, Sargent, ND

Built 1993 Load: 49.7 t ADT: 20

COUNTY HIGHWAY

Good

Over: BIG COULEE

2 WEST 1 SOUTH MADDOCK, Benson, ND

Built 1981 Load: 49.9 t ADT: 20

COUNTY ROAD

Good

Over: EGG CREEK

6 N. 1 W. OF RUTHVILLE, Ward, ND

Built 2013 Load: 49.9 t ADT: 260

IRRSR ND HIWAY 31

Good

Over: CANNONBALL RIVER

13 NORTH OF SD BORDER, Grant, ND

Built 2014 Load: 50.1 t ADT: 260

INTERSTATE 94

Good

Over: NORTH CREEK

2 WEST OF ND 49, Morton, ND

Built 1961 Load: 50.1 t ADT: 2,300

COUNTY HIGHWAY

Good

Over: SOUTH BRANCH GOOSE RIVER

13 EAST 1 SOUTH PICKERT, Steele, ND

Built 1985 Load: 50.1 t ADT: 25

14TH ST NE

Good

Over: ELM COULEE

1 SOUTH 1 WEST THOMPSON, Grand Forks, ND

Built 2022 Load: 50.2 t ADT: 32

INTERSTATE 94

Good

Over: CP RAILWAY SEPARATION

6 EAST OF ND 1 SOUTH, Barnes, ND

Built 1993 Load: 50.3 t ADT: 5,050

COUNTY HIGHWAY

Good

Over: CREEK

1 WEST 2 NORTH EMBDEN, Cass, ND

Built 2015 Load: 50.3 t ADT: 20

COUNTY HIGHWAY

Good

Over: LITTLE BEICEGEL CREEK

16W 2N GRASSY BUTTE, McKenzie, ND

Built 1988 Load: 50.3 t ADT: 120

COUNTY HIGHWAY

Good

Over: COW CREEK

1 EAST 19 NORTH TRENTON, Williams, ND

Built 2014 Load: 50.3 t ADT: 550

ND HIGHWAY 8

Good

Over: CANNONBALL RIVER

SOUTH END OF MOTT, Hettinger, ND

Built 1979 Load: 50.4 t ADT: 670

COUNTY ROAD

Good

Over: CREEK

3 WEST 5 SOUTH OF DRESDEN, Cavalier, ND

Built 2016 Load: 50.6 t ADT: 26

COUNTY HIGHWAY

Good

Over: DRAINAGE DITCH

1 WEST 1 NO. GRAND FORKS, Grand Forks, ND

Built 1996 Load: 50.6 t ADT: 70

COUNTY HIGHWAY

Good

Over: SOUTH BRANCH GOOSE RIVER

1 WEST OF PORTLAND, Traill, ND

Built 1999 Load: 50.6 t ADT: 70

COUNTY HIGHWAY

Good

Over: SOUTH MARAIS RIVER

4 EAST 3 SOUTH MANVEL, Grand Forks, ND

Built 1984 Load: 50.7 t ADT: 85

ND HIGHWAY 27

Good

Over: BEAR CREEK

2 EAST OF ND 1, LaMoure, ND

Built 2002 Load: 50.7 t ADT: 500

ND HIGHWAY 18

Good

Over: CREEK

5 SOUTH OF ND 17, Walsh, ND

Built 1993 Load: 50.7 t ADT: 580

US HIGHWAY 81

Good

Over: BRANCH FOREST RIVER

CITY OF MINTO, Walsh, ND

Built 1995 Load: 50.7 t ADT: 2,340

INTERSTATE 94

Good

Over: APPLE CREEK

9 EAST OF US 83 NORTH, Burleigh, ND

Built 1965 Load: 50.8 t ADT: 3,850

INTERSTATE 94

Good

Over: APPLE CREEK

9 EAST OF US 83 NORTH, Burleigh, ND

Built 1965 Load: 50.8 t ADT: 3,850

IRRSR ND HIWAY 49

Good

Over: TIMBER CREEK

11 NORTH ND-SD BORDER, Grant, ND

Built 1972 Load: 51.0 t ADT: 250

163rd Avenue SW

Good

Over: HORSE CREEK

2 WEST 2 SOUTH MARMARTH, Bowman, ND

Built 2012 Load: 51.2 t ADT: 10

COUNTY HIGHWAY

Good

Over: HAZEN BROOK

4 SOUTH 1 WEST ARVILLA, Grand Forks, ND

Built 1980 Load: 51.2 t ADT: 50

INTERSTATE 29

Good

Over: COUNTY DRAIN 32

6 NORTH OF ND 13, Richland, ND

Built 1973 Load: 51.3 t ADT: 5,100

4TH AVE N.W.

Good

Over: Souris River

4TH AVE-16TH ST NW-MINOT, Ward, ND

Built 2016 Load: 51.3 t ADT: 7,850

ND HIGHWAY 16

Good

Over: BEAVER CREEK

17 NORTH OF BEACH, Golden Valley, ND

Built 1984 Load: 51.5 t ADT: 170

COUNTY HIGHWAY

Good

Over: CROOKED CREEK

6 SOUTH 1 EAST MILNOR, Sargent, ND

Built 2013 Load: 51.5 t ADT: 55

COUNTY HIGHWAY

Good

Over: MAUVAIS COULEE

2 NORTH 3 EAST OF CANDO, Towner, ND

Built 1997 Load: 51.6 t ADT: 10

ND HIGHWAY 32

Good

Over: BN RAILROAD

NORTH OF ND 26, Barnes, ND

Built 1989 Load: 51.7 t ADT: 490

149th Ave. SW

Good

Over: CREEK

3 WEST 5 NORTH BOWMAN, Bowman, ND

Built 1960 Load: 51.7 t ADT: 140

ND HIGHWAY 20

Good

Over: BN RAILROAD

GLENFIELD, Foster, ND

Built 1989 Load: 51.8 t ADT: 480

COUNTY HIGHWAY

Good

Over: CREEK

18 E 3 S WATFORD CITY, McKenzie, ND

Built 2020 Load: 51.8 t ADT: 20

INTERSTATE 29

Good

Over: DRAINAGE DITCH

3 NORTH ND 66, Pembina, ND

Built 2021 Load: 51.8 t ADT: 3,825

MISTY WATERS ROAD

Good

Over: MISTY WATERS BAY

MISTY WATERS, Burleigh, ND

Built 2006 Load: 51.9 t ADT: 50

US HIGHWAY 281

Good

Over: BN RR SEP

NEW ROCKFORD SOUTH, Eddy, ND

Built 2008 Load: 51.9 t ADT: 1,756

COUNTY HIGHWAY

Good

Over: COYOTE CREEK

2 EAST 15 SOUTH OF ZAP, Mercer, ND

Built 2011 Load: 51.9 t ADT: 24

US HIGHWAY 81

Good

Over: CREEK

13 SOUTH OF ND 17, Walsh, ND

Built 2001 Load: 52.0 t ADT: 1,870

COUNTY HIGHWAY

Good

Over: INTERMITTENT STREAM

1 WEST OF REYNOLDS, Traill, ND

Built 2020 Load: 52.1 t ADT: 20

COUNTY HIGHWAY

Good

Over: ANTELOPE CREEK

6 NORTH 3 WEST OF ELGIN, Grant, ND

Built 2011 Load: 52.2 t ADT: 25

COUNTY HIGHWAY

Good

Over: BALDHILL CREEK

5 EAST OF REVERE, Griggs, ND

Built 1980 Load: 52.3 t ADT: 60

Showing 3,451-3,500 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.