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 1804

Fair

Over: BEAVER BAY

2 SOUTH 14 WEST LINTON, Emmons, ND

Built 1969 Load: 32.6 t ADT: 230

COUNTY HIGHWAY

Fair

Over: PEMBINA RIVER

6 WEST 1 SOUTH OF NECHE, Pembina, ND

Built 1967 Load: 32.6 t ADT: 300

SECTION LINE TRAIL

Fair

Over: COULEE

3 WEST 6 SOUTH LOGAN, Ward, ND

Built 1969 Load: 32.6 t ADT: 10

INTERSTATE 94

Fair

Over: SHEEP CREEK

17 WEST OF JCT. US 85, Billings, ND

Built 1964 Load: 32.7 t ADT: 1,300

COUNTY ROAD 0549

Fair

Over: CREEK BED

8 N 3 E BOTTINEAU, Bottineau, ND

Built 1969 Load: 32.7 t ADT: 477

APPLE CREEK ROAD

Fair

Over: HAY CREEK

1 EAST OF YEGEN ROAD, Burleigh, ND

Built 1990 Load: 32.7 t ADT: 925

30th Ave NE

Fair

Over: CREEK

5 WEST OF ND 14, Burleigh, ND

Built 1965 Load: 32.7 t ADT: 200

I-94 BUSINESS LOOP

Fair

Over: HAY CREEK

EAST BISMARCK, Burleigh, ND

Built 1948 Load: 32.7 t ADT: 5,800

COUNTY HIGHWAY

Fair

Over: MAPLE RIVER

3 SOUTH OF TOWER CITY, Cass, ND

Built 1979 Load: 32.7 t ADT: 20

COUNTY HIGHWAY

Fair

Over: RUSH RIVER

7 EAST OF AYR, Cass, ND

Built 1990 Load: 32.7 t ADT: 480

COUNTY HIGHWAY

Fair

Over: BRANCH OF ELM RIVER

1 WEST OF HUNTER, Cass, ND

Built 1955 Load: 32.7 t ADT: 20

COUNTY HIGHWAY

Fair

Over: ELM RIVER TRIB.

1 EAST OF HUNTER, Cass, ND

Built 1970 Load: 32.7 t ADT: 20

COUNTY HIGHWAY

Fair

Over: CREEK

5 WEST 2 SOUTH OF WALES, Cavalier, ND

Built 1992 Load: 32.7 t ADT: 26

COUNTY HIGHWAY

Fair

Over: CREEK

4 SOUTH 1 WEST OF WALES, Cavalier, ND

Built 1998 Load: 32.7 t ADT: 25

COUNTY HIGHWAY

Fair

Over: CREEK

9 EAST OF HANNAH, Cavalier, ND

Built 1997 Load: 32.7 t ADT: 10

COUNTY HIGHWAY

Fair

Over: LITTLE SO. PEMBINA RIVER

2 WEST 6 NORTH LANGDON, Cavalier, ND

Built 1961 Load: 32.7 t ADT: 24

113TH AVE SW

Fair

Over: GREEN RIVER

1 SOUTH NEW HRADEC, Dunn, ND

Built 1988 Load: 32.7 t ADT: 30

ENTRANCE ROAD

Fair

Over: SPRING CREEK

BELOW DAM SPILLWAY, Dunn, ND

Built 2003 Load: 32.7 t ADT: 25

COUNTY HIGHWAY

Fair

Over: CREEK

2 EAST OF GILBY, Grand Forks, ND

Built 2008 Load: 32.7 t ADT: 40

COUNTY HIGHWAY

Fair

Over: CREEK

10 SOUTH OF GRAND FORKS, Grand Forks, ND

Built 1970 Load: 32.7 t ADT: 570

COUNTY ROAD

Fair

Over: COTTONWOOD CREEK

3 WEST 2 SOUTH OF LAMOURE, LaMoure, ND

Built 1989 Load: 32.7 t ADT: 24

IRRFB ND HIWAY 22

Fair

Over: CLARKS CREEK

4 SOUTH OF ND 23, McKenzie, ND

Built 1988 Load: 32.7 t ADT: 690

US HIGHWAY 83

Fair

Over: TURTLE CREEK

3 NORTH OF ND 1804, McLean, ND

Built 1979 Load: 32.7 t ADT: 3,890

County Highway 27

Fair

Over: BRADY CREEK

2 SOUTH OF HAZEN, Mercer, ND

Built 1967 Load: 32.7 t ADT: 270

ND HIGHWAY

Fair

Over: E BR CHANTA PETA CREEK

5 WEST OF ND 6, Morton, ND

Built 1954 Load: 32.7 t ADT: 750

ND HIGHWAY

Fair

Over: OTTER CREEK

5 NORTH OF I-94, Morton, ND

Built 1954 Load: 32.7 t ADT: 1,000

INTERSTATE 94

Fair

Over: HAILSTONE CREEK

8 WEST OF ND 31, Morton, ND

Built 1960 Load: 32.7 t ADT: 5,400

INTERSTATE 94

Fair

Over: SWEET BRIAR CREEK

7 EAST OF ND 31, Morton, ND

Built 1964 Load: 32.7 t ADT: 6,600

INTERSTATE 94

Fair

Over: CREEK

8 WEST OF ND 25, Morton, ND

Built 1964 Load: 32.7 t ADT: 6,600

I-94 BUSINESS LOOP

Fair

Over: CREEK

5 WEST OF ND 6, Morton, ND

Built 1948 Load: 32.7 t ADT: 1,200

COUNTY HIGHWAY

Fair

Over: FOREST RIVER

12 N 3 E PETERSBURG, Nelson, ND

Built 1978 Load: 32.7 t ADT: 166

ND HIGHWAY 15

Fair

Over: CREEK

4 WEST PEKIN, Nelson, ND

Built 1931 Load: 32.7 t ADT: 510

COUNTY HIGHWAY

Fair

Over: PEMBINA RIVER

4 EAST OF WALHALLA, Pembina, ND

Built 1977 Load: 32.7 t ADT: 30

COUNTY HIGHWAY

Fair

Over: CART CREEK

3 WEST 1 NORTH CRYSTAL, Pembina, ND

Built 1979 Load: 32.7 t ADT: 175

ND HIGHWAY 32

Fair

Over: CART CREEK

3 NORTH ND 66 WEST, Pembina, ND

Built 1986 Load: 32.7 t ADT: 550

COUNTY HIGHWAY

Fair

Over: COULEE

4 NORTH EDMORE, Ramsey, ND

Built 2007 Load: 32.7 t ADT: 5

COUNTY HIGHWAY

Fair

Over: BEAR CREEK

4W 10S OF FORT RANSOM, Ransom, ND

Built 1976 Load: 32.7 t ADT: 50

INTERSTATE 29

Fair

Over: BRANCH OF ANTELOPE CREEK

1 SOUTH OF ND 13, Richland, ND

Built 1973 Load: 32.7 t ADT: 4,650

3RD STREET

Fair

Over: CREEK

3RD ST-8TH AVE-DICKINSON, Stark, ND

Built 1970 Load: 32.7 t ADT: 975

2ND STREET

Fair

Over: CREEK

2ND ST-8TH AVE-DICKINSON, Stark, ND

Built 1982 Load: 32.7 t ADT: 975

1ST STREET EAST

Fair

Over: CREEK

1ST ST E-8TH AV-DICKINSON, Stark, ND

Built 1982 Load: 32.7 t ADT: 975

9TH STREET

Fair

Over: CREEK

W. OF SIMS AVE-DICKINSON, Stark, ND

Built 1982 Load: 32.7 t ADT: 3,450

W 10TH ST

Fair

Over: CREEK

W. OF SIMS AVE-DICKINSON, Stark, ND

Built 1982 Load: 32.7 t ADT: 1,625

I-94 BUSINESS LOOP

Fair

Over: CREEK

1 EAST OF ND 22, Stark, ND

Built 1949 Load: 32.7 t ADT: 8,690

COUNTY HIGHWAY

Fair

Over: GOOSE RIVER

9 NORTH 13 EAST OF FINLEY, Steele, ND

Built 1984 Load: 32.7 t ADT: 100

ND HIGHWAY 32

Fair

Over: CREEK

3 SOUTH OF FINLEY, Steele, ND

Built 1988 Load: 32.7 t ADT: 850

COUNTY HIGHWAY

Fair

Over: PARK RIVER

1 EAST 8 NORTH OF ADAMS, Walsh, ND

Built 1978 Load: 32.7 t ADT: 126

COUNTY HIGHWAY

Fair

Over: CREEK

1 EAST OF LANKIN, Walsh, ND

Built 1977 Load: 32.7 t ADT: 415

COUNTY HIGHWAY

Fair

Over: CREEK

CITY OF MINTO, Walsh, ND

Built 1982 Load: 32.7 t ADT: 800

COUNTY HIGHWAY

Fair

Over: CREEK

5 EAST 1 NORTH, Walsh, ND

Built 1972 Load: 32.7 t ADT: 5

Showing 1,451-1,500 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.