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 HIGHWAY

Good

Over: SPRING COULEE

11 E 0.5 S OF GLENBURN, McHenry, ND

Built 2014 Load: 39.9 t ADT: 75

COUNTY HIGHWAY

Good

Over: HORSE CREEK

7 SO. 2 WEST CARTWRIGHT, McKenzie, ND

Built 1996 Load: 40.0 t ADT: 100

92nd Street

Good

Over: SPRING CREEK

6 SOUTH 3 EAST BOWMAN, Bowman, ND

Built 1983 Load: 40.1 t ADT: 20

197th St NE

Good

Over: CREEK

2 EAST 6 SOUTH OF REGAN, Burleigh, ND

Built 2021 Load: 40.1 t ADT: 35

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

2 WEST 1 SOUTH OF HICKSON, Cass, ND

Built 1993 Load: 40.1 t ADT: 30

36TH ST NE

Good

Over: GOOSE RIVER

2 SOUTH 1 WEST NORTHWOOD, Grand Forks, ND

Built 2022 Load: 40.1 t ADT: 32

COUNTY HIGHWAY

Good

Over: ELM COULEE

CITY THOMPSON, Grand Forks, ND

Built 1986 Load: 40.1 t ADT: 275

US HIGHWAY 81

Good

Over: CREEK

15 SOUTH OF ND 17, Walsh, ND

Built 2001 Load: 40.1 t ADT: 1,760

ND HIGHWAY 5

Good

Over: TONGUE RIVER

3 WEST OF ND 18 NORTH, Pembina, ND

Built 1988 Load: 40.2 t ADT: 1,640

COUNTY ROAD

Good

Over: COLE CREEK

2 WEST 2 NORTH REYNOLDS, Grand Forks, ND

Built 1951 Load: 40.3 t ADT: 25

ND HIGHWAY 26

Good

Over: LAKE ASHTABULA

9 WEST OF ND 32, Barnes, ND

Built 2013 Load: 40.4 t ADT: 345

COUNTY ROAD

Good

Over: SHEYENNE RIVER

3 N 4 W OF VALLEY CITY, Barnes, ND

Built 2017 Load: 40.5 t ADT: 155

COUNTY HWY

Good

Over: CREEK

1 SOUTH OF ND 19 EAST, Benson, ND

Built 1992 Load: 40.5 t ADT: 200

150th Ave SW

Good

Over: NORTH FORK GRAND RIVER

4 WEST 13 SOUTH BOWMAN, Bowman, ND

Built 1984 Load: 40.5 t ADT: 50

141st Street

Good

Over: CEDAR CREEK

1 EAST 10 NORTH GASCOYNE, Bowman, ND

Built 1985 Load: 40.5 t ADT: 60

157TH STREET SE

Good

Over: ELM RIVER

2 EAST OF HUNTER, Cass, ND

Built 2022 Load: 40.5 t ADT: 10

US HIGHWAY 83

Good

Over: CREEK

2 NORTH OF ND 11, Emmons, ND

Built 2012 Load: 40.5 t ADT: 1,845

COUNTY ROAD

Good

Over: LITTLE GOOSE RIVER

6 SOUTH 2 WEST LARIMORE, Grand Forks, ND

Built 2021 Load: 40.5 t ADT: 25

ND HIGHWAY 49

Good

Over: CREEK

6 SOUTH OF GLEN ULLIN, Morton, ND

Built 1994 Load: 40.5 t ADT: 680

US HIGHWAY 12

Good

Over: LITTLE BEAVER CREEK

1 WEST OF MARMARTH, Slope, ND

Built 1987 Load: 40.5 t ADT: 520

COUNTY ROAD

Good

Over: S BR PARK RIVER-REROUTED

3 WEST 1 NORTH GRAFTON, Walsh, ND

Built 1993 Load: 40.5 t ADT: 150

CARPENTER AVE W

Good

Over: CREEK

2 WEST 13 SOUTH GRAFTON, Walsh, ND

Built 1980 Load: 40.5 t ADT: 250

US HIGHWAY 83

Good

Over: CREEK

14 SOUTH OF N.D. HWY 5, Bottineau, ND

Built 1966 Load: 40.6 t ADT: 1,980

US HIGHWAY 83

Good

Over: B N R R SEP OH

2 SOUTH OF I-94, Burleigh, ND

Built 2011 Load: 40.6 t ADT: 1,589

ND HIGHWAY 3

Good

Over: BNRR

11 SOUTH OF ND HWY 19, Pierce, ND

Built 1937 Load: 40.6 t ADT: 570

ND HIGHWAY 17

Good

Over: CREEK

WEST OF ND 1, Ramsey, ND

Built 1995 Load: 40.6 t ADT: 460

US HIGHWAY 81

Good

Over: BERG COULEE

3 NORTH OF ND 17, Walsh, ND

Built 2004 Load: 40.6 t ADT: 1,850

COUNTY HIGHWAY

Good

Over: OAK CREEK

1 WEST 5 SOUTH SAWYER, Ward, ND

Built 1960 Load: 40.6 t ADT: 50

7TH STREET NE

Good

Over: Souris River

7TH ST-CENTRAL AVE NE-MNT, Ward, ND

Built 1993 Load: 40.6 t ADT: 2,700

COUNTY HIGHWAY

Good

Over: BEAVER CREEK

2 EAST OF SYDNEY, Stutsman, ND

Built 1970 Load: 40.7 t ADT: 55

Country Club Road

Good

Over: FLAT CREEK

2 EAST 1 SOUTH HETTINGER, Adams, ND

Built 2000 Load: 40.8 t ADT: 180

COUNTY HIWAY 221

Good

Over: SHEYENNE RIVER

1 NORTH OF KATHRYN, Barnes, ND

Built 1968 Load: 40.8 t ADT: 580

COUNTY HIGHWAY

Good

Over: SHEYENNE RIVER

6 SOUTH 9 WEST MADDOCK, Benson, ND

Built 2018 Load: 40.8 t ADT: 5

COUNTY HIGHWAY

Good

Over: CREEK

1 EAST 3 SOUTH FRYBURG, Billings, ND

Built 1994 Load: 40.8 t ADT: 40

COUNTY ROAD

Good

Over: SOUTH FORK GREEN RIVER

7 EAST 10 NORTH FRYBURG, Billings, ND

Built 1989 Load: 40.8 t ADT: 24

123RD AVE SW

Good

Over: GREEN RIVER

6 EAST 11 SOUTH FAIRFIELD, Billings, ND

Built 1988 Load: 40.8 t ADT: 26

COUNTY ROAD

Good

Over: CUT BANK CREEK

10 SOUTH 5 WEST ANTLER, Bottineau, ND

Built 2016 Load: 40.8 t ADT: 40

87TH ST NW

Good

Over: CUT BANK CREEK

2 WEST 3 SOUTH MAXBASS, Bottineau, ND

Built 2012 Load: 40.8 t ADT: 22

COUNTY HIGHWAY

Good

Over: CUT BANK CREEK

4 WEST 1 SOUTH OF ECKMAN, Bottineau, ND

Built 2002 Load: 40.8 t ADT: 130

COUNTY ROAD

Good

Over: BOUNDARY CREEK

3 EAST 4 NORTH OF SOURIS, Bottineau, ND

Built 2015 Load: 40.8 t ADT: 25

COUNTY HIGHWAY

Good

Over: STONE CREEK

1 NORTH 2 WEST BOTTINEAU, Bottineau, ND

Built 1992 Load: 40.8 t ADT: 25

COUNTY ROAD

Good

Over: DRAINAGE DITCH

1 SOUTH OF BOTTINEAU, Bottineau, ND

Built 2012 Load: 40.8 t ADT: 25

54th St NW

Good

Over: CREEK

4 WEST 5 SOUTH OF WILTON, Burleigh, ND

Built 1994 Load: 40.8 t ADT: 10

71st Ave NE

Good

Over: CREEK

4 WEST 4 NORTH MENOKEN, Burleigh, ND

Built 2001 Load: 40.8 t ADT: 65

236TH ST SE

Good

Over: MCKENZIE SLOUGH

2 SOUTH OF MCKLENZIE, Burleigh, ND

Built 2001 Load: 40.8 t ADT: 55

62nd Ave SE

Good

Over: LONG LAKE CREEK

4 NORTH 2 WEST OF MOFFIT, Burleigh, ND

Built 2001 Load: 40.8 t ADT: 40

102nd Ave SE

Good

Over: LONG LAKE

1 NORTH OF MOFFIT, Burleigh, ND

Built 2001 Load: 40.8 t ADT: 30

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

2 WEST 7 NORTH OF ALICE, Cass, ND

Built 1998 Load: 40.8 t ADT: 50

COUNTY HIGHWAY

Good

Over: SWAN CREEK

1 WEST CASSELTON, Cass, ND

Built 2015 Load: 40.8 t ADT: 525

COUNTY HIGHWAY

Good

Over: COUNTY DRAIN 14

7 SOUTH OF MAPLETON, Cass, ND

Built 2004 Load: 40.8 t ADT: 175

Showing 3,101-3,150 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.