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

INTERSTATE 94

Unknown

Over: BNRR & SE JAMESTOWN INT

SE JAMESTOWN INTERCHANGE, Stutsman, ND

Built 1958 ADT: 4,100

INTERSTATE 94

Unknown

Over: RRVW RR/MINOR ROAD

JUST EAST OF JCT US 52, Stutsman, ND

Built 1958 ADT: 4,100

INTERSTATE 94

Unknown

Over: RRVW RR/MINOR ROAD

JUST EAST OF JCT.US-52, Stutsman, ND

Built 1958 ADT: 4,100

COUNTY HIWAY 4739

Unknown

Over: I-94/BLOOM INTERCHANGE

2 EAST OF US 52, Stutsman, ND

Built 1997 ADT: 8,400

INTERSTATE 94

Unknown

Over: MINOR ROAD SEPARATION

8 EAST OF US 281, Stutsman, ND

Built 1988 ADT: 4,200

INTERSTATE 94

Unknown

Over: MINOR ROAD SEPARATION

8 EAST OF US 281, Stutsman, ND

Built 1987 ADT: 4,200

INTERSTATE 94

Unknown

Over: CO HWY/SPIRITWOOD INTER

9 EAST OF US 52, Stutsman, ND

Built 1957 ADT: 4,200

INTERSTATE 94

Unknown

Over: CO HWY/SPIRITWOOD INTER

9 EAST OF US 52, Stutsman, ND

Built 1957 ADT: 4,200

COUNTY HIGHWAY

Unknown

Over: I-29/GRANDIN INTERCHANGE

8 SOUTH OF ND 200, Traill, ND

Built 1970 ADT: 8,700

COUNTY HIGHWAY

Unknown

Over: I-29/GALESBURG SEP

6 SOUTH OF ND 200, Traill, ND

Built 1971 ADT: 8,700

COUNTY HIGHWAY

Unknown

Over: I-29/KELSO SEPARATION

3 SOUTH OF ND 200, Traill, ND

Built 1970 ADT: 8,700

ND HIGHWAY 200A

Unknown

Over: I-29/BLANCHARD INT

JUNCTION OF 200A & I29, Traill, ND

Built 1971 ADT: 8,800

COUNTY HIGHWAY

Unknown

Over: I-29/HILLSBORO INT

4 NORTH OF ND 200 SOUTH, Traill, ND

Built 1970 ADT: 9,100

COUNTY HIGHWAY

Unknown

Over: I-29/TAFT SEPARATION

3 SOUTH OF ND 200 NORTH, Traill, ND

Built 1970 ADT: 9,100

ND HIGHWAY 200

Unknown

Over: I-29/MAYVILLE INT

JUNCTION ND 200, Traill, ND

Built 1970 ADT: 9,100

COUNTY HIGHWAY

Unknown

Over: I-29/CUMMINGS SEPARATION

1 NORTH OF ND 200, Traill, ND

Built 1970 ADT: 9,100

COUNTY HIGHWAY

Unknown

Over: I-29/BUXTON SEPARATION

5 NORTH OF ND 200, Traill, ND

Built 1970 ADT: 9,100

COUNTY HIGHWAY

Unknown

Over: I-29/BUXTON INTERCHANGE

7 NORTH OF ND 200, Traill, ND

Built 1970 ADT: 9,400

COUNTY HIGHWAY

Unknown

Over: I-29/HATTON SEPARATION

9 SOUTH ND 15, Traill, ND

Built 1970 ADT: 9,400

COUNTY HIGHWAY

Unknown

Over: I-29/REYNOLDS INTERCHNGE

7 SOUTH ND 15, Traill, ND

Built 1970 ADT: 9,800

INTERSTATE 29

Unknown

Over: ND 54 AND SOO LINE RR

JUNCTION ND 54, Walsh, ND

Built 1971 ADT: 665

INTERSTATE 29

Unknown

Over: ND 54 AND SOO LINE RR

JUNCTION ND 54, Walsh, ND

Built 1971 ADT: 665

COUNTY HIGHWAY

Unknown

Over: I-29/LAKE ARDOCH INT

3 NORTH ND 54, Walsh, ND

Built 1971 ADT: 4,800

COUNTY HIGHWAY

Unknown

Over: I-29/MINTO SEPARATION

5 NORTH ND 54, Walsh, ND

Built 1971 ADT: 5,400

COUNTY HIGHWAY

Unknown

Over: I-29/MINTO INTERCHANGE

7 NORTH ND 54, Walsh, ND

Built 1971 ADT: 4,600

COUNTY HIGHWAY

Unknown

Over: I-29/VESLEYVILLE SEP

6 SOUTH ND 17, Walsh, ND

Built 1971 ADT: 4,600

COUNTY HIGHWAY

Unknown

Over: I-29/PULASKI INTERCHANGE

4 SOUTH OF ND 17, Walsh, ND

Built 1971 ADT: 4,550

COUNTY HIGHWAY

Unknown

Over: I-29/GRAFTON SEPARATION

2 SOUTH OF ND 17, Walsh, ND

Built 1971 ADT: 4,550

ND HIGHWAY 17

Unknown

Over: I-29/GRAFTON INTERCHANGE

JCT OF ND 17, Walsh, ND

Built 1974 ADT: 4,050

COUNTY HIGHWAY

Unknown

Over: I-29/OAKWOOD SEPARATION

2 NORTH OF ND 17, Walsh, ND

Built 1974 ADT: 4,050

COUNTY HIGHWAY

Unknown

Over: I-29/CASHEL INTERCHANGE

4 NORTH ND 17, Walsh, ND

Built 1974 ADT: 4,100

ND HIGHWAY 44

Unknown

Over: I-29/HERRICK INTERCHANGE

3 SOUTH ND 66, Walsh, ND

Built 2004 ADT: 3,850

3RD ST. N.E.

Unknown

Over: 4TH AVE BNRR SOURIS R.

3RD ST NE-MINOT, Ward, ND

Built 1936 ADT: 200

US HIGHWAY 52

Unknown

Over: U.S. HIGHWAY

JCT US 2 & US 52 West, Ward, ND

Built 1980 ADT: 1,770

16TH ST. SW-MINOT

Unknown

Over: U.S. HWY 2 & 52

1 WEST OF U.S. HWY 83, Ward, ND

Built 1988 ADT: 9,600

US HIGHWAY 83

Unknown

Over: U.S. HIGHWAY 2 & 52

JCT US 83 & US 2-52, Ward, ND

Built 1977 ADT: 11,900

US HIGHWAY 52

Unknown

Over: US2/US2 & 52 INT.

JCT 2 & 52 EAST, Ward, ND

Built 1981 ADT: 8,300

U.S. 83 BYPASS W

Unknown

Over: COUNTRY CLUB ROAD

MINOT WEST BYPASS, Ward, ND

Built 1977 ADT: 400

U.S. 83 BYPASS W

Unknown

Over: COUNTRY CLUB ROAD

MINOT WEST BYPASS, Ward, ND

Built 2019 ADT: 400

US HIGHWAY 2

Unknown

Over: 18 th ST W

5 EAST OF US 85 SOUTH, Williams, ND

Built 2014 ADT: 7,360

1 LANE GRAVEL RD

Fair

Over: WHITETAIL CREEK

35 MI NW BELFIELD ND, Billings, ND

Built 1983 ADT: 50

1 LANE SCORIA RD

Fair

Over: MAGPIE CREEK

40 MI NW BELFIELD ND, McKenzie, ND

Built 1975 ADT: 50

COUNTY HIGHWAY

Fair

Over: KINEMAN CREEK

5 EAST 1 SOUTH OF HAZEN, Mercer, ND

Built 1950 ADT: 25

COUNTY ROAD

Fair

Over: NORTH BRANCH PARK RIVER

4 SOUTH OF CRYSTAL, Pembina, ND

Built 1948 ADT: 2

COUNTY HIGHWAY

Fair

Over: ANTELOPE CREEK

4 NORTH 2 WEST MOORETON, Richland, ND

Built 1936 ADT: 10

COUNTY HIGHWAY

Fair

Over: CREEK

11 EAST 3 NORTH OF SHARON, Steele, ND

Built 1938 Load: 1.7 t ADT: 24

COUNTY ROAD

Fair

Over: TONGUE RIVER

4 EAST 1 SOUTH BATHGATE, Pembina, ND

Built 1946 Load: 1.8 t ADT: 10

COUNTY TRAIL

Fair

Over: CREEK

2 EAST 2 NORTH EDINBURG, Walsh, ND

Built 1935 Load: 2.3 t ADT: 2

COUNTY HIGHWAY

Fair

Over: CREEK

4 SOUTH OF MILTON, Cavalier, ND

Built 1975 Load: 2.4 t ADT: 35

74TH ST N

Fair

Over: LITTLE DEEP CREEK

7 WEST 6 SOUTH OF UPHAM, McHenry, ND

Built 1954 Load: 2.4 t ADT: 30

Showing 251-300 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.