State profile · Above median Poor share

North Dakota bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in North Dakota.

4,255
Public bridges
42.3%
Good condition
11.0%
Poor condition

North Dakota holds 4,255 public highway bridges (#39 of 52 by inventory) with a 10.98% Poor share (#10 of 52 by Poor share).

That is 11.0% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 43 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

4,255

Public highway bridges in North Dakota

Good Condition

42.3%

1,800 bridges rated 7-9

-7.7pp vs 50% benchmark

Poor Condition

11.0%

467 bridges whose lowest applicable component is rated 0-4

3.5pp vs national avg 7.5%

North Dakota vs national bridge condition

North Dakota - Good condition share 42.3%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

North Dakota - Poor-condition share 36.6%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

North Dakota in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: North Dakota has 4,255 bridges and a 11.0% Poor-condition share in the 2024 NBI, rank #43 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: North Dakota has 4,255 bridges and a 11.0% Poor-condition share in the 2024 NBI, rank #43 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

North Dakota vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

4,255 39th of 54 higher than 15 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for North Dakota

The highlighted point is North Dakota: 4,255 bridges and 10.98% in Poor condition, rank #43 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below North Dakota on that same Poor-share ordering:

  • Illinois: 26,928 bridges · 9.35% Poor
  • New York: 17,642 bridges · 9.43% Poor
  • North Dakota: 4,255 bridges · 10.98% Poor
  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor

The full national sortable table lives on the rankings page.

Material families in North Dakota

Exclusive FHWA material families across all 4,255 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains North Dakota’s inventory

State agency holds 27.1% of the 4,255 public highway bridges filed under North Dakota in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When North Dakota’s bridges were built

Pre-1950 construction accounts for 14.8% of the 4,255 bridges with a recorded original year in North Dakota. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

North Dakota42.3%46.7%11%GoodFairPoor
Bridge inventory deck-condition mix - North Dakota (FHWA NBI)

North Dakota vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below North Dakota on the same metric.

IL

Illinois

9.35% top marginal rate
Structure
Progressive
Burden @ $100K
$26,928

NY

New York

9.43% top marginal rate
Structure
Progressive
Burden @ $100K
$17,642
Selected

ND

North Dakota

10.98% top marginal rate
Structure
Progressive
Burden @ $100K
$4,255

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698

Bridges Needing Most Attention in North Dakota

Six lowest-condition bridges in North Dakota, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in North Dakota

COUNTY HIGHWAY

Good

Over: I-29/NORTHWOOD SEP

3 SOUTH ND 15, Grand Forks, ND

Built 1970 Load: 43.6 t ADT: 110

MICHIGAN AVENUE

Good

Over: BRANCH OF MAPLE RIVER

TOWER CITY, Cass, ND

Built 2017 Load: 43.7 t ADT: 300

COUNTY HIGHWAY

Good

Over: MAPLE RIVER

3 WEST 2 SOUTH MAPLETON, Cass, ND

Built 2015 Load: 43.7 t ADT: 20

17TH AVE SE

Good

Over: BEAVER CREEK

3 SOUTH 10 EAST LINTON, Emmons, ND

Built 2003 Load: 43.7 t ADT: 25

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

3.5 SOUTH 3 EAST DELAMERE, Sargent, ND

Built 2016 Load: 43.7 t ADT: 20

US HIGHWAY 2

Good

Over: SALTWATER COULEE

8 WEST OF I-29, Grand Forks, ND

Built 2021 Load: 43.7 t ADT: 6,540

COUNTY HIGHWAY

Good

Over: CHERRY CREEK

1 N 1 E WATFORD CITY, McKenzie, ND

Built 2000 Load: 43.8 t ADT: 50

ND HIGHWAY 8

Good

Over: EAST CHILTON CREEK

2 EAST JCT. ND 21 WEST, Hettinger, ND

Built 1991 Load: 43.8 t ADT: 420

ND HIGHWAY 1804

Good

Over: APPLE CREEK

5 SOUTH OF US 83, Burleigh, ND

Built 1986 Load: 43.8 t ADT: 4,380

ND HIGHWAY 32

Good

Over: NO. BRANCH FOREST RIVER

5 SOUTH OF ND 17, Walsh, ND

Built 1962 Load: 44.0 t ADT: 790

COUNTY HIGHWAY

Good

Over: CREEK

1 EAST 1 SOUTH OF MCCANNA, Grand Forks, ND

Built 2016 Load: 44.1 t ADT: 210

THIRD AVENUE S.E.

Good

Over: CHERRY CREEK

2ND AVE S.E. WATFORD CITY, McKenzie, ND

Built 1998 Load: 44.2 t ADT: 183

IRRFB ND HIWAY 23

Good

Over: CREEK

5 WEST OF ND 1804, McKenzie, ND

Built 2011 Load: 44.2 t ADT: 5,056

COUNTY ROAD 89

Good

Over: DRAINAGE AREA

2 EAST 1 SOUTH OF HEBRON, Morton, ND

Built 2016 Load: 44.3 t ADT: 40

TOWNSHIP ROAD

Good

Over: PIPESTEM CREEK

6 SOUTH 2 WEST BUCHANAN, Stutsman, ND

Built 1973 Load: 44.3 t ADT: 25

TOWNSHIP ROAD

Good

Over: PIPESTEM CREEK

4 SOUTH 2 WEST BUCHANAN, Stutsman, ND

Built 1973 Load: 44.3 t ADT: 25

ND HIGHWAY 28

Good

Over: DES LACS RIVER

NORTH OF U.S. HWY 52, Ward, ND

Built 1987 Load: 44.3 t ADT: 380

COUNTY HIGHWAY

Good

Over: CHERRY CREEK

2 S 1 W WATFORD CITY, McKenzie, ND

Built 1994 Load: 44.4 t ADT: 20

STATE AVENUE

Good

Over: DRAINAGE WAY

STATE AVENUE, Stark, ND

Built 2015 Load: 44.4 t ADT: 4,000

ND HIGHWAY 46

Good

Over: MAPLE RIVER

CITY OF ENDERLIN, Ransom, ND

Built 1994 Load: 44.4 t ADT: 1,900

IRRFT ND HIWAY 20

Good

Over: SHEYENNE RIVER

1 SOUTH OF NORTH 15, Eddy, ND

Built 1989 Load: 44.5 t ADT: 270

COUNTY HIGHWAY

Good

Over: CREEK

7 SOUTH OF WALES, Cavalier, ND

Built 1977 Load: 44.6 t ADT: 190

COUNTY ROAD

Good

Over: CREEK

2 WEST 2 NORTH FORBES, Dickey, ND

Built 1977 Load: 44.6 t ADT: 25

COUNTY HIGHWAY

Good

Over: WILD RICE RIVER

2 WEST 1 SOUTH ABERCROMBI, Richland, ND

Built 1989 Load: 44.6 t ADT: 50

141ST AVENUE

Good

Over: NORTH FORK GRAND RIVER

4 EAST 15.5 SOUTH BOWMAN, Bowman, ND

Built 1992 Load: 44.7 t ADT: 30

COUNTY HIWAY

Good

Over: LITTLE KNIFE RIVER

10 WEST 3 SOUTH KILLDEER, Dunn, ND

Built 2011 Load: 44.7 t ADT: 30

COUNTY HIGHWAY

Good

Over: MID. BRANCH GOOSE RIVER

3 NORTH 4 EAST OF FINLEY, Steele, ND

Built 1982 Load: 44.8 t ADT: 24

IRRSR ND HIWAY 49

Good

Over: CREEK

12 NORTH ND-SD BORDER, Grant, ND

Built 1972 Load: 44.8 t ADT: 250

ND HIGHWAY 18

Good

Over: PEMBINA RIVER

1 SOUTH CANADA BORDER, Pembina, ND

Built 1988 Load: 44.9 t ADT: 410

ND HIGHWAY 49

Good

Over: BIG MUDDY CREEK

3 SOUTH OF I-94, Morton, ND

Built 1959 Load: 44.9 t ADT: 890

370th Ave NE

Good

Over: CREEK

4 EAST 4 NORTH OF WILTON, Burleigh, ND

Built 1999 Load: 45.0 t ADT: 50

COUNTY ROAD

Good

Over: MAPLE RIVER

4 EAST 2 SOUTH ELLENDALE, Dickey, ND

Built 2006 Load: 45.0 t ADT: 35

12th St SW

Good

Over: CREEK

7 SOUTH OF HALLIDAY, Dunn, ND

Built 2002 Load: 45.0 t ADT: 35

US HIGHWAY 81

Good

Over: ENGLISH COULEE DIVERSION

2 NORTH OF US 2, Grand Forks, ND

Built 2003 Load: 45.0 t ADT: 4,990

I-94 BUS LP BISMAR

Good

Over: WASHINGTON STREET

WEST MAIN & WASHINGTON ST, Burleigh, ND

Built 1993 Load: 45.0 t ADT: 6,600

COUNTY HIGHWAY

Good

Over: LONESOME CREEK

1 NORTHEAST CHARBONNEAU, McKenzie, ND

Built 1999 Load: 45.1 t ADT: 20

INTERSTATE 29

Good

Over: 17TH AVE SO. SEPARATION

.5 NORTH OF I-94 - FARGO, Cass, ND

Built 2001 Load: 45.1 t ADT: 21,845

US HIGHWAY 52

Good

Over: PIPESTEM CREEK

7 WEST OF US 281, Foster, ND

Built 1965 Load: 45.1 t ADT: 1,830

COUNTY ROAD

Good

Over: TURTLE RIVER

2 EAST OF MEKINOCK, Grand Forks, ND

Built 1988 Load: 45.2 t ADT: 100

ND HIGHWAY 1

Good

Over: BEAR CREEK

3 NORTH OF OAKES, Dickey, ND

Built 1990 Load: 45.2 t ADT: 1,650

BISMARCK EXPWY

Good

Over: HAY CREEK

2 SOUTH OF EXIT 161, Burleigh, ND

Built 1984 Load: 45.2 t ADT: 6,900

ND HIGHWAY 60

Good

Over: CREEK

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

Built 2006 Load: 45.3 t ADT: 650

COUNTY HWY

Good

Over: BIG COULEE

4 NORTH OF ND 19, Benson, ND

Built 1998 Load: 45.4 t ADT: 200

COUNTY ROAD

Good

Over: BOUNDARY CREEK

3 SOUTH 1 WEST OF SOURIS, Bottineau, ND

Built 2019 Load: 45.4 t ADT: 25

COUNTY HIGHWAY

Good

Over: CREEK

7 WEST 2 NORTH OF DURBIN, Cass, ND

Built 2018 Load: 45.4 t ADT: 10

COUNTY HIGHWAY

Good

Over: COUNTY DRAIN 2

2 WEST OF HARWOOD, Cass, ND

Built 2021 Load: 45.4 t ADT: 58

COUNTY ROAD 17 S

Good

Over: SHEYENNE RIVER

3 NORTH OF HORACE, Cass, ND

Built 2023 Load: 45.4 t ADT: 7,282

86TH ST SE

Good

Over: S. BRANCH BEAVER CREEK

2 NORTH 9 EAST STRASBURG, Emmons, ND

Built 1981 Load: 45.4 t ADT: 52

19TH AVE

Good

Over: LITTLE HEART RIVER

4 E 6 N OF ST. ANTHONY, Morton, ND

Built 2023 Load: 45.4 t ADT: 11

COUNTY ROAD 134

Good

Over: CANTAPETA CREEK

5 EAST 4 NORTH OF SOLEN, Morton, ND

Built 2023 Load: 45.4 t ADT: 40

Showing 3,301-3,350 of 4,255 bridges

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

What to do with this

Use North Dakota's inventory picture to drill to a county or a specific span.

  • Browse counties in North Dakota and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. North Dakota Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.