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

COUNTY ROAD

Good

Over: COTTONWOOD CREEK

4 WEST 2 NORTH OF BERLIN, LaMoure, ND

Built 1990 Load: 17.0 t ADT: 50

Lee Avenue

Good

Over: HEART RIVER

CITY OF GLADSTONE, Stark, ND

Built 1990 Load: 17.0 t ADT: 485

36th Avenue SW

Good

Over: SQUARE BUTTE CREEK

2 EAST 1 SOUTH OF CENTER, Oliver, ND

Built 1982 Load: 17.2 t ADT: 385

ND HIGHWAY 30

Good

Over: CREEK

2 SOUTH US 281, Rolette, ND

Built 1967 Load: 17.2 t ADT: 830

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

3 E 3 S OF COOPERSTOWN, Griggs, ND

Built 1983 Load: 17.3 t ADT: 25

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

4 SOUTH OF CHAFFEE, Cass, ND

Built 1996 Load: 17.4 t ADT: 90

COUNTY HIWAY 2026

Good

Over: SHEYENNE RIVER

9 EAST OF HANNAFORD, Griggs, ND

Built 1983 Load: 17.4 t ADT: 70

COUNTY ROAD

Good

Over: PAINTED WOODS CREEK

5 EAST 5 SOUTH WASHBURN, McLean, ND

Built 1950 Load: 17.4 t ADT: 25

23RD ST SW

Good

Over: CREEK

5 EAST 7 SOUTH FAIRFIELD, Billings, ND

Built 1984 Load: 17.6 t ADT: 40

1ST AVE SW

Good

Over: CREEK

11 WEST 2 NORTH STRASBURG, Emmons, ND

Built 2002 Load: 17.6 t ADT: 25

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

3 SOUTH 5 EAST OF ROGERS, Barnes, ND

Built 2000 Load: 17.7 t ADT: 460

COUNTY HIGHWAY

Good

Over: TONGUE RIVER

1 NORTH OF BATHGATE, Pembina, ND

Built 1989 Load: 17.9 t ADT: 40

58th Ave SW

Good

Over: KNIFE RIVER

1 MILE EAST OF BEULAH, Mercer, ND

Built 1982 Load: 18.0 t ADT: 100

CR138

Good

Over: BIG MUDDY CREEK

5 WEST 3 NORTH OF ALMONT, Morton, ND

Built 1988 Load: 18.0 t ADT: 72

SCENIC LOOP DRIVE

Good

Over: PADDOCK CREEK

SCENIC LOOP DRIVE MILEPOS, Billings, ND

Built 1966 Load: 18.1 t ADT: 200

116TH AVE SW

Good

Over: ASH CREEK

5 E 3 S OF SOUTH HEART, Stark, ND

Built 1984 Load: 18.1 t ADT: 50

37th St SW

Good

Over: HEART RIVER

2 EAST BELFIELD, Stark, ND

Built 1981 Load: 18.2 t ADT: 50

COUNTY HIGHWAY

Good

Over: CP RAILWAY

2 WEST OF FORDVILLE, Walsh, ND

Built 1989 Load: 18.2 t ADT: 300

COUNTY HIGHWAY

Good

Over: Souris River

3 SOUTH 3 EAST BURLINGTON, Ward, ND

Built 1988 Load: 18.2 t ADT: 310

COUNTY HIWAY 1112

Good

Over: JAMES RIVER

1 WEST OF OAKES, Dickey, ND

Built 1986 Load: 18.4 t ADT: 420

ND HIGHWAY 11

Good

Over: WINDING CREEK

1 EAST OF CAYUGA, Sargent, ND

Built 1951 Load: 18.4 t ADT: 650

COUNTY ROAD

Good

Over: PARK RIVER

6 WEST OF GRAFTON, Walsh, ND

Built 2007 Load: 18.5 t ADT: 26

COUNTY HIGHWAY

Good

Over: BENNIE PEER CREEK

6 N 1 W HOMESTEADERS GAP, McKenzie, ND

Built 1982 Load: 18.6 t ADT: 255

IRRFB COUNTY ROAD

Good

Over: DEEP WATER CREEK

NORTH SIDE OF RAUB, McLean, ND

Built 1979 Load: 18.6 t ADT: 35

46th Street

Good

Over: BEAVER CREEK

6 SOUTH 2 EAST NEW SALEM, Morton, ND

Built 1970 Load: 18.6 t ADT: 20

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

FORT RANSOM, Ransom, ND

Built 1976 Load: 18.6 t ADT: 115

COUNTY HIGHWAY

Good

Over: NORTH BRANCH GOOSE RIVER

8 NORTH OF PORTLAND, Traill, ND

Built 2004 Load: 18.6 t ADT: 20

100M AVE SW

Good

Over: ANTELOPE CREEK

4 SOUTH OF GLADSTONE, Stark, ND

Built 1990 Load: 18.7 t ADT: 485

COUNTY ROAD

Good

Over: MINE HAUL ROAD

3 SOUTH 1 WEST UNDERWOOD, McLean, ND

Built 1983 Load: 18.9 t ADT: 25

COUNTY HIGHWAY 10

Good

Over: CREEK

1 NORTH 2 WEST MAPLETON, Cass, ND

Built 1999 Load: 19.0 t ADT: 575

COUNTY HIGHWAY

Good

Over: JAMES RIVER

3 EAST OF BUCHANAN, Stutsman, ND

Built 1990 Load: 19.0 t ADT: 196

COUNTY ROAD

Good

Over: CREEK

1 NORTH OF TOWER CITY, Barnes, ND

Built 1965 Load: 19.1 t ADT: 75

ND HIGHWAY 67

Good

Over: BUFFALO CREEK

SOUTH EDGE OF SCRANTON, Bowman, ND

Built 1936 Load: 19.1 t ADT: 775

110TH AVE. NW

Good

Over: BURNT CREEK

2 WEST 6 NORTH BISMARCK, Burleigh, ND

Built 1979 Load: 19.1 t ADT: 40

71ST AVE NE

Good

Over: CREEK

4 NORTH OF MENOKEN, Burleigh, ND

Built 1980 Load: 19.1 t ADT: 55

Lincoln Rd

Good

Over: LONG LAKE CREEK

3 SOUTH MCKENZIE, Burleigh, ND

Built 1981 Load: 19.1 t ADT: 60

24TH ST SW

Good

Over: RUSSIAN SPRING CREEK

5 NORTH 1 EAST NEW HRADEC, Dunn, ND

Built 1984 Load: 19.1 t ADT: 90

1st ST SW

Good

Over: GUMBO CREEK

4 WEST 2 NORTH KILLDEER, Dunn, ND

Built 1978 Load: 19.1 t ADT: 70

101st St SW

Good

Over: DEEP CREEK

7 EAST 9 SOUTH MANNING, Dunn, ND

Built 1985 Load: 19.1 t ADT: 40

4th St. SW

Good

Over: SPRING CREEK

EAST OF WERNER, Dunn, ND

Built 1985 Load: 19.1 t ADT: 80

22nd Ave

Good

Over: CREEK

1 SOUTH OF KINTYRE, Emmons, ND

Built 1960 Load: 19.1 t ADT: 150

89th St SE

Good

Over: S Branch Beaver Creek

10 EAST OF STRASBURG, Emmons, ND

Built 1978 Load: 19.1 t ADT: 24

ND HIGHWAY 34

Good

Over: CREEK

9 EAST OF US 83, Emmons, ND

Built 1929 Load: 19.1 t ADT: 310

COUNTY ROAD

Good

Over: PIPESTEM CREEK

2 WEST 6 SOUTH CARRINGTON, Foster, ND

Built 1983 Load: 19.1 t ADT: 20

COUNTY ROAD

Good

Over: TURTLE RIVER

1 EAST 8 SOUTH GILBY, Grand Forks, ND

Built 1962 Load: 19.1 t ADT: 30

APPROACH

Good

Over: COUNTY DRAIN #13

6 NORTH MANVEL, Grand Forks, ND

Built 1970 Load: 19.1 t ADT: 10

COUNTY HIGHWAY

Good

Over: COLE CREEK

2 EAST 2 SOUTH THOMPSON, Grand Forks, ND

Built 1936 Load: 19.1 t ADT: 570

96th 1/2 AVE SW

Good

Over: CREEK

6 EAST 11 SOUTH REGENT, Hettinger, ND

Built 1956 Load: 19.1 t ADT: 10

COUNTY HIWAY 2311

Good

Over: CREEK

2 WEST 3 SOUTH OF EDGELEY, LaMoure, ND

Built 1975 Load: 19.1 t ADT: 160

COUNTY HIGHWAY

Good

Over: MAPLE CREEK

6 EAST 3 SOUTH OF EDGELEY, LaMoure, ND

Built 1988 Load: 19.1 t ADT: 30

Showing 2,151-2,200 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.