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

5th Street SE

Good

Over: McClusky Canal

10.4 mi S-SW of McClusky, Sheridan, ND

Built 1973 Load: 35.1 t ADT: 30

1st Street SE

Good

Over: McClusky Canal

6.4 mi S-SW of McClusky, Sheridan, ND

Built 1973 Load: 35.1 t ADT: 30

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

5 EAST 2 NORTH ELLENDALE, Dickey, ND

Built 2002 Load: 35.2 t ADT: 24

104th Avenue SW

Good

Over: THIRTY MILE CREEK

12 N. 2 W. OF REGENT, Hettinger, ND

Built 1971 Load: 35.2 t ADT: 20

COUNTY HIGHWAY

Good

Over: JAMES RIVER

1 NORTH OF DICKEY, LaMoure, ND

Built 1980 Load: 35.2 t ADT: 110

CR84

Good

Over: CREEK

6 NORTH 2 WEST OF FLASHER, Morton, ND

Built 1955 Load: 35.2 t ADT: 80

ND HIGHWAY

Good

Over: E BR CHANTA PETA CREEK

6 WEST OF ND 6, Morton, ND

Built 1987 Load: 35.2 t ADT: 750

ND HIGHWAY

Good

Over: CREEK

6 SOUTH OF ND 25, Oliver, ND

Built 1976 Load: 35.2 t ADT: 670

81ST AVE SW

Good

Over: HEART RIVER

13 S 7 E RICHARDSON, Stark, ND

Built 2003 Load: 35.2 t ADT: 130

NORTH PROJECT ROAD

Good

Over: DES LACS RIVER

1 WEST 1 NORTH BURLINGTON, Ward, ND

Built 1960 Load: 35.2 t ADT: 64

121ST AVE

Good

Over: CREEK

8 WEST OF NEW HRADEC, Billings, ND

Built 2022 Load: 35.3 t ADT: 97

74TH AVE

Good

Over: DRAINAGE AREA

1 EAST 2 SOUTH OF HEBRON, Morton, ND

Built 1972 Load: 35.3 t ADT: 40

IRRSR ND HIWAY 31

Good

Over: CEDAR CREEK

10 NORTH OF SD BORDER, Sioux, ND

Built 1964 Load: 35.3 t ADT: 160

IRRFT US HIWAY 281

Good

Over: SHEYENNE RIVER

1 NORTH OF SHEYENNE, Eddy, ND

Built 1984 Load: 35.4 t ADT: 1,250

COUNTY ROAD

Good

Over: CREEK

2 EAST 4 SOUTH FAIRFIELD, Billings, ND

Built 1984 Load: 35.6 t ADT: 50

NO DATA ENTERED

Good

Over: BLACKTAIL CREEK

NO DATA ENTERED, Billings, ND

Built 2010 Load: 35.6 t ADT: 300

COUNTY ROAD

Good

Over: BOUNDARY CREEK

4 SOUTH 2 WEST OF SOURIS, Bottineau, ND

Built 2022 Load: 35.6 t ADT: 24

163rd Avenue

Good

Over: SPRING CREEK

6 SOUTH 5 WEST RHAME, Bowman, ND

Built 2013 Load: 35.6 t ADT: 165

COUNTY HIGHWAY

Good

Over: CREEK

1 WEST 3 NORTH OF DURBIN, Cass, ND

Built 2021 Load: 35.6 t ADT: 20

114th AVE NW

Good

Over: CREEK

4 E 3 S OF CROSBY, Divide, ND

Built 2023 Load: 35.6 t ADT: 63

19th Ave. SE

Good

Over: BEAVER CREEK

12 EAST 1 SOUTH OF LINTON, Emmons, ND

Built 1981 Load: 35.6 t ADT: 52

33RD STREET

Good

Over: LITTLE KNIFE RIVER

2 NORTH 1 WEST OF HEBRON, Morton, ND

Built 2022 Load: 35.6 t ADT: 110

COUNTY ROAD 140

Good

Over: LITTLE KNIFE RIVER

2 NORTH OF HEBRON, Morton, ND

Built 2022 Load: 35.6 t ADT: 110

ND HIGHWAY 31

Good

Over: CREEK

4 NORTH OF I-94, Morton, ND

Built 1976 Load: 35.6 t ADT: 1,070

ND HIGHWAY 127

Good

Over: COUNTY DRAIN 3

5 NORTH OF SD BORDER, Richland, ND

Built 2023 Load: 35.6 t ADT: 468

COUNTY HIGHWAY 23

Good

Over: SOURIS RIVER

CITY OF SAWYER, Ward, ND

Built 2022 Load: 35.6 t ADT: 230

COUNTY HIGHWAY

Good

Over: N ROCKFORD CANAL NR1-12

9 EAST 5 NORTH FESSENDEN, Wells, ND

Built 1983 Load: 35.6 t ADT: 10

INTERSTATE 94

Good

Over: CP RAILWAY & HAY CREEK

1 EAST OF US 83 NORTH, Burleigh, ND

Built 1964 Load: 35.7 t ADT: 6,150

US HIGHWAY 81

Good

Over: FOREST RIVER

SOUTH EDGE OF MINTO, Walsh, ND

Built 1967 Load: 35.7 t ADT: 2,270

ND HIGHWAY 58

Good

Over: MISSOURI RIVER

1 WEST 1 SOUTH BUFORD, Williams, ND

Built 1985 Load: 35.8 t ADT: 2,413

COUNTY ROAD

Good

Over: SOURIS RIVER

2 NORTH 5 WEST OF KRAMER, Bottineau, ND

Built 2014 Load: 35.9 t ADT: 22

COUNTY ROAD

Good

Over: OAK CREEK

2 WEST 3 SOUTH OF OMEMEE, Bottineau, ND

Built 2021 Load: 35.9 t ADT: 24

102nd AVE SE

Good

Over: LONG LAKE

1 NORTH 5 EAST OF MOFFIT, Burleigh, ND

Built 2001 Load: 35.9 t ADT: 30

COUNTY HIGHWAY

Good

Over: RUSH RIVER

2 WEST OF AMENIA, Cass, ND

Built 2014 Load: 35.9 t ADT: 65

38TH ST SO.-FARGO

Good

Over: ROSE COULEE

NORTH OF 40TH AVE SW, Cass, ND

Built 2011 Load: 35.9 t ADT: 1,470

COUNTY HIGHWAY

Good

Over: N ROCKFORD CANAL NR2-7

1 W 2 N NEW ROCKFORD, Eddy, ND

Built 1988 Load: 35.9 t ADT: 20

COUNTY HIGHWAY

Good

Over: N ROCKFORD CANAL NR2-10

1 E 2 N NEW ROCKFORD, Eddy, ND

Built 1989 Load: 35.9 t ADT: 20

98th Avenue SW

Good

Over: CREEK

4 EAST 9 NORTH OF REGENT, Hettinger, ND

Built 1962 Load: 35.9 t ADT: 40

IRR BIA RTE 3

Good

Over: FOUR MILE CREEK BRIDGE

.6 KM S ND24, Sioux, ND

Built 2010 Load: 35.9 t ADT: 1,000

US HIGHWAY 12

Good

Over: BNRR SEPARATION

1 WEST OF MARMARTH, Slope, ND

Built 1984 Load: 35.9 t ADT: 561

COUNTY HIGHWAY

Good

Over: OAK CREEK

2 EAST 1 SOUTH OF GARDENA, Bottineau, ND

Built 2018 Load: 36.0 t ADT: 5

US HIGHWAY 85

Good

Over: NORTH FORK GRAND RIVER

2 NORTH S.D. BORDER, Bowman, ND

Built 1966 Load: 36.0 t ADT: 1,010

COUNTY HIGHWAY

Good

Over: BRANCH OF MAPLE RIVER

3 WEST 4 SOUTH CASSELTON, Cass, ND

Built 1953 Load: 36.0 t ADT: 20

COUNTY HIGHWAY 15

Good

Over: COUNTY DRAIN 14

2 EAST 1 SOUTH MAPLETON, Cass, ND

Built 2022 Load: 36.0 t ADT: 1,045

COUNTY HIGHWAY

Good

Over: NORTH BRANCH CLEAR CREEK

1 NORTH 3 WEST KEENE, McKenzie, ND

Built 1992 Load: 36.0 t ADT: 20

19th Street NE

Good

Over: McClusky Canal

14.9 mi N-NE of McClusky, Sheridan, ND

Built 1973 Load: 36.0 t ADT: 30

COUNTY ROAD

Good

Over: TURTLE RIVER

1 WEST ARVILLA, Grand Forks, ND

Built 2007 Load: 36.1 t ADT: 60

COUNTY HIGHWAY

Good

Over: CLEAR CREEK

1 NORTH 3 WEST KEENE, McKenzie, ND

Built 1992 Load: 36.1 t ADT: 20

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

1 WEST 3 SOUTH OF DURBIN, Cass, ND

Built 2021 Load: 36.2 t ADT: 58

COUNTY ROAD

Good

Over: JAMES RIVER

8 S 10 E OF NEW ROCKFORD, Foster, ND

Built 2019 Load: 36.2 t ADT: 20

Showing 2,901-2,950 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.