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

25TH ST SW

Fair

Over: RUSSIAN SPRING CREEK

2 EAST 4 NORTH NEW HRADEC, Dunn, ND

Built 1989 Load: 11.4 t ADT: 24

79th Ave SW

Fair

Over: CANNONBALL RIVER

2 SOUTH 12 EAST OF MOTT, Hettinger, ND

Built 1944 Load: 11.4 t ADT: 90

60TH AVE SW

Fair

Over: CREEK

8 SOUTH OF BEULAH, Mercer, ND

Built 1967 Load: 11.4 t ADT: 10

75th Ave

Fair

Over: DRAINAGE AREA

1 EAST 13 SOUTH OF HEBRON, Morton, ND

Built 1966 Load: 11.4 t ADT: 30

COUNTY HIGHWAY

Fair

Over: ANTELOPE CREEK

2 EAST 4 NORTH BARNEY, Richland, ND

Built 1937 Load: 11.4 t ADT: 20

130TH AVE SW

Fair

Over: CREEK

17 SOUTH OF BELFIELD, Stark, ND

Built 1951 Load: 11.4 t ADT: 5

COUNTY ROAD

Fair

Over: MOUSE RIVER

1 WEST LOGAN, Ward, ND

Built 1992 Load: 11.4 t ADT: 25

35th Street

Fair

Over: CREEK

4 NORTH OF NEW SALEM, Morton, ND

Built 1972 Load: 11.5 t ADT: 15

COUNTY ROAD

Fair

Over: CREEK

2 EAST 2 SOUTH CAVALIER, Pembina, ND

Built 1939 Load: 11.5 t ADT: 26

COUNTY HIGHWAY

Fair

Over: COULEE

8 EAST 2 NORTH BUXTON, Traill, ND

Built 1974 Load: 11.5 t ADT: 20

COUNTY HIGHWAY

Fair

Over: STONY CREEK

AT BOWBELLS, Burke, ND

Built 1952 Load: 11.6 t ADT: 126

COUNTY ROAD

Fair

Over: DRAIN DITCH

13 SOUTH GRAFTON, Walsh, ND

Built 1958 Load: 11.6 t ADT: 26

COUNTY ROAD

Fair

Over: CUT BANK CREEK

7 SOUTH 3 EAST MAXBASS, Bottineau, ND

Built 1938 Load: 11.7 t ADT: 25

COUNTY HIGHWAY

Fair

Over: CREEK

1 NORTH OF SHIELDS, Grant, ND

Built 1955 Load: 11.7 t ADT: 62

28TH AVE

Fair

Over: CHANTA PETA CREEK

2 NORTH 9 EAST OF FLASHER, Morton, ND

Built 1968 Load: 11.7 t ADT: 10

96TH AVE SW

Fair

Over: CREEK

2 WEST 1 NORTH TAYLOR, Stark, ND

Built 1938 Load: 11.7 t ADT: 10

COUNTY HIGHWAY

Fair

Over: MAPLE RIVER

2 EAST 2 SOUTH CHAFFEE, Cass, ND

Built 1945 Load: 11.8 t ADT: 20

COUNTY HIGHWAY

Fair

Over: DITCH

6 WEST OF GRANDIN, Traill, ND

Built 1930 Load: 11.8 t ADT: 20

53RD AVE SW

Fair

Over: CANNONBALL RIVER

9 SOUTH 7 EAST OF LEITH, Grant, ND

Built 1958 Load: 12.0 t ADT: 25

COUNTY TRAIL

Fair

Over: DITCH

4 EAST 2 SOUTH HAMILTON, Pembina, ND

Built 1948 Load: 12.0 t ADT: 10

COUNTY HIGHWAY

Fair

Over: SHEYENNE RIVER

1 SOUTH OF ANSELM, Ransom, ND

Built 1978 Load: 12.0 t ADT: 207

COUNTY HIGHWAY

Fair

Over: DRAIN DITCH

7 EAST 1 SOUTH JOHNSTOWN, Grand Forks, ND

Built 1951 Load: 12.1 t ADT: 30

79th Ave SW

Fair

Over: ANTELOPE CREEK

8 NORTH 12 EAST OF MOTT, Hettinger, ND

Built 1958 Load: 12.1 t ADT: 26

County Road 37

Fair

Over: KNIFE RIVER

3 NORTH OF STANTON, Mercer, ND

Built 1980 Load: 12.1 t ADT: 175

67TH ST

Fair

Over: CREEK

5 EAST OF FLASHER, Morton, ND

Built 1950 Load: 12.1 t ADT: 15

County Road 137

Fair

Over: CREEK

4 NORTH 3 EAST ST ANTHONY, Morton, ND

Built 1955 Load: 12.1 t ADT: 20

48th Ave. SW

Fair

Over: Creek

2 NORTH 2 EAST LEFOR, Stark, ND

Built 1901 Load: 12.1 t ADT: 5

12TH ST SE

Fair

Over: MAPLE RIVER

3 WEST OF COLGATE, Steele, ND

Built 1950 Load: 12.1 t ADT: 34

COUNTY ROAD

Fair

Over: MIDDLE BRANCH PARK RIVER

6 EAST 5 NORTH PARK RIVER, Walsh, ND

Built 1960 Load: 12.2 t ADT: 10

COUNTY ROAD

Fair

Over: DITCH

2 WEST 3 SOUTH OF GRAFTON, Walsh, ND

Built 1962 Load: 12.2 t ADT: 24

SECTION LINE ROAD

Fair

Over: MID. BR. DOUGLAS CREEK

14 EAST 1 NORTH ROSEGLEN, McLean, ND

Built 1936 Load: 12.3 t ADT: 10

72ND AVE SW

Fair

Over: ELM CREEK

2E 14.5 S GOLDEN VALLEY, Mercer, ND

Built 1969 Load: 12.3 t ADT: 45

COUNTY ROAD

Fair

Over: DRAIN DITCH

1 NORTH 1 EAST MOUNTAIN, Pembina, ND

Built 1960 Load: 12.3 t ADT: 5

COUNTY HIGHWAY

Fair

Over: SOUTH BRANCH GOOSE RIVER

8 SOUTH OF HATTON, Traill, ND

Built 1963 Load: 12.3 t ADT: 20

COUNTY ROAD

Fair

Over: BANK CREEK

CUT BANK CREEK, McHenry, ND

Built 1937 Load: 12.4 t ADT: 5

FARM APPROACH

Fair

Over: N. MAYVILLE DRAIN NO. 8

4 EAST 3 NORTH MAYVILLE, Traill, ND

Built 1972 Load: 12.4 t ADT: 10

COUNTY HIGHWAY

Fair

Over: LITTLE MUDDY RIVER

1 WEST 1 SOUTH APPAM, Williams, ND

Built 1920 Load: 12.4 t ADT: 20

8th Ave NE

Fair

Over: TIMBER CREEK

7 EAST 11 NORTH LEMMON SD, Adams, ND

Built 1938 Load: 12.7 t ADT: 10

144th Avenue

Fair

Over: Alkali Creek

1 EAST 12 SOUTH BOWMAN, Bowman, ND

Built 1967 Load: 12.7 t ADT: 24

COUNTY HIGHWAY

Fair

Over: ANTELOPE CREEK

4 WEST 4 NORTH MOORETON, Richland, ND

Built 1977 Load: 12.7 t ADT: 75

COUNTY HIGHWAY

Fair

Over: WILD RICE RIVER

3 EAST 1 NORTH GREAT BEND, Richland, ND

Built 1934 Load: 12.7 t ADT: 20

COUNTY ROAD

Fair

Over: PARK RIVER

7 WEST 7 NORTH OF GRAFTON, Walsh, ND

Built 1980 Load: 12.7 t ADT: 22

COUNTY HIGHWAY

Fair

Over: MORIAS RIVER

2 NORTH 1 EAST MANVEL, Grand Forks, ND

Built 1950 Load: 12.9 t ADT: 30

Elgin Rd

Fair

Over: CANNONBALL RIVER

3 SOUTH OF ELGIN, Grant, ND

Built 1944 Load: 12.9 t ADT: 95

TOWNSHIP ROAD

Fair

Over: BURLINGTON NORTHERN RR

4 WEST 2 NORTH HANNAFORD, Griggs, ND

Built 1924 Load: 12.9 t ADT: 24

COUNTY HIGHWAY

Fair

Over: DRAINAGE AREA

5 NORTH OF NEW SALEM, Morton, ND

Built 1950 Load: 12.9 t ADT: 10

COUNTY ROAD

Fair

Over: CREEK

2 WEST 2 SOUTH EDINBURG, Walsh, ND

Built 1940 Load: 12.9 t ADT: 10

67th Ave SW

Fair

Over: COYOTE CREEK

6 SOUTH OF ZAP, Mercer, ND

Built 1967 Load: 13.0 t ADT: 35

COUNTY HIGHWAY

Fair

Over: CREEK

10 WEST 6 SOUTH KINDRED, Richland, ND

Built 1919 Load: 13.0 t ADT: 37

96th Ave SW

Fair

Over: DAYTON CREEK

4 EAST 4 SOUTH OF REGENT, Hettinger, ND

Built 1936 Load: 13.1 t ADT: 10

Showing 501-550 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.