Total Bridges
4,242
Public highway bridges in North Dakota
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
Data updated May 2026
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
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.
AK
Alaska
10.12% top marginal rate
PA
Pennsylvania
10.50% top marginal rate
ND
North Dakota
10.84% top marginal rate
LA
Louisiana
11.00% top marginal rate
PR
Puerto Rico
11.98% top marginal rate
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 DeficientOver: CYPRESS CREEK
5 NORTH 1 EAST OF CALVIN, Cavalier, ND
Built 1950 Load: 0.9 t ADT: 2
COUNTY HIGHWAY
PoorOver: CREEK
2 WEST 6 SOUTH OF VANG, Cavalier, ND
Built 1953 Load: 0.9 t ADT: 2
COUNTY ROAD
Structurally DeficientOver: JAMES RIVER
NORTH OF LAMOURE, LaMoure, ND
Built 1910 Load: 1.1 t ADT: 50
COUNTY HIGHWAY
PoorOver: ANTELOPE CREEK
2 SOUTH 3 WEST DWIGHT, Richland, ND
Built 1920 Load: 1.1 t ADT: 20
COUNTY HIGHWAY
Structurally DeficientOver: LITTLE MUDDY RIVER
2 WEST 3 SOUTH ALAMO, Williams, ND
Built 1920 Load: 1.5 t ADT: 24
COUNTY HIGHWAY
Structurally DeficientOver: LITTLE MUDDY RIVER
1 EAST 3 SOUTH ALAMO, Williams, ND
Built 1920 Load: 1.5 t ADT: 20
All Bridges in North Dakota
COUNTY HIWAY 0203
UnknownOver: I-94/URBANA INTERCHANGE
11 WEST OF ND 1 NORTH, Barnes, ND
Built 1957 ADT: 8,400
MINOR ROAD
UnknownOver: I-94/EAST URBANA SEP
9 WEST OF ND 1 NORTH, Barnes, ND
Built 1957 ADT: 8,400
COUNTY HIWAY 0207
UnknownOver: I-94/ECKELSON INTERCHNGE
7 WEST OF ND 1 NORTH, Barnes, ND
Built 1957 ADT: 8,400
COUNTY HIGHWAY
UnknownOver: I-94/WEST SANBORN SEP
4 WEST OF ND 1 NORTH, Barnes, ND
Built 1958 ADT: 8,500
COUNTY HIWAY 0211
UnknownOver: I-94/SANBORN INTERCHANGE
2 WEST OF ND 1 NORTH, Barnes, ND
Built 1958 ADT: 8,600
INTERSTATE 94
UnknownOver: ND1/ROGERS INTERCHANGE
JCT I 94 & ND 1 NORTH, Barnes, ND
Built 1958 ADT: 4,450
INTERSTATE 94
UnknownOver: ND1/ROGERS INTERCHANGE
JCT I 94 & ND 1 NORTH, Barnes, ND
Built 1976 ADT: 4,450
INTERSTATE 94
UnknownOver: CO HWY/HOBART LAKE SEP.
1 EAST OF ND 1 NORTH, Barnes, ND
Built 1958 ADT: 4,450
INTERSTATE 94
UnknownOver: CO HWY/HOBART LAKE SEP
1 EAST OF ND 1 NORTH, Barnes, ND
Built 1958 ADT: 4,450
ND HIGHWAY 1
UnknownOver: I-94/OAKES INTERCHANGE
JCT ND 1 SOUTH, Barnes, ND
Built 1958 ADT: 9,900
INTERSTATE 94
UnknownOver: WEST VALLEY CITY INT
2 EAST OF ND 1 SOUTH-VC, Barnes, ND
Built 2000 ADT: 500
INTERSTATE 94
UnknownOver: WEST VALLEY CITY INT
2 EAST OF ND 1 SOUTH-VC, Barnes, ND
Built 2001 ADT: 4,150
INTERSTATE 94
UnknownOver: CO HWY/KATHRYN INTERCHG
4 EAST OF ND 1 SOUTH, Barnes, ND
Built 1958 ADT: 4,100
INTERSTATE 94
UnknownOver: CO HWY/KATHRYN INTERCHG
4 EAST OF ND 1 SOUTH, Barnes, ND
Built 1958 ADT: 4,100
INTERSTATE 94
UnknownOver: MINOR ROAD SEPARATION
5 EAST OF ND 1 SOUTH, Barnes, ND
Built 1958 ADT: 4,100
INTERSTATE 94
UnknownOver: MINOR ROAD SEPARATION
5 EAST OF ND 1 SOUTH, Barnes, ND
Built 1958 ADT: 4,100
I-94 BUSINESS LOOP
UnknownOver: I-94/E. VALLEY CITY INT
6 EAST OF ND 1 SOUTH, Barnes, ND
Built 1977 ADT: 10,100
CO.HIWAY 0227
UnknownOver: I-94/PEAK INTERCHANGE
6 WEST OF N.D.32, Barnes, ND
Built 2005 ADT: 9,700
COUNTY HIGHWAY
UnknownOver: I-94/CUBA INTERCHANGE
4 WEST OF ND 32, Barnes, ND
Built 1959 ADT: 9,600
COUNTY HIGHWAY
UnknownOver: I-94/WEST ORISKA SEP
2 WEST OF ND 32, Barnes, ND
Built 1959 ADT: 9,600
ND HIGHWAY 32
UnknownOver: I-94/ORISKA INTERCHANGE
JCT. ND 32, Barnes, ND
Built 1959 ADT: 9,000
COUNTY HIGHWAY
UnknownOver: I-94/EAST ORISKA SEP
3 EAST N.D.32, Barnes, ND
Built 2005 ADT: 9,000
COUNTY ROAD 0237
UnknownOver: I-94/TOWER CITY INT
5 EAST OF ND 32, Barnes, ND
Built 1959 ADT: 8,400
INTERSTATE 94
UnknownOver: WEST RIVER RD. INT.
West River Rd W of Medora, Billings, ND
Built 1968 ADT: 1,425
INTERSTATE 94
UnknownOver: WEST RIVER RD. INT.
W River Road W of Medora, Billings, ND
Built 1968 ADT: 1,425
INTERSTATE 94
UnknownOver: LITTLE MISSOURI R.
West Medora Int, Billings, ND
Built 1964 ADT: 1,300
INTERSTATE 94
UnknownOver: LITTLE MISSOURI R.
West Medora Int, Billings, ND
Built 1964 ADT: 1,300
NATIONAL PARK ROAD
UnknownOver: I-94/PARK ROAD SEPARATIO
16 WEST OF JCT. US 85, Billings, ND
Built 1965 ADT: 1,300
NATIONAL PARK ROAD
UnknownOver: I94/PARK ROAD SEPARATION
16 WEST OF US 85, Billings, ND
Built 1965 ADT: 1,300
I-94 BUSINESS LOOP
UnknownOver: I-94/EAST MEDORA INT
East Medora Int, Billings, ND
Built 1965 ADT: 3,400
COUNTY ROAD
UnknownOver: I-94/PAINTED CANYON INT
9 WEST OF JCT. US 85, Billings, ND
Built 1965 ADT: 3,400
COUNTY ROAD
UnknownOver: I-94/FRYBURG INTERCHANGE
6 WEST OF JCT. US 85, Billings, ND
Built 1964 ADT: 3,550
ND HIGHWAY 67
UnknownOver: BNRR AND US 12
AT SCRANTON, Bowman, ND
Built 2006 ADT: 775
DIVIDE/TYLER PKWY
UnknownOver: INTERSTATE 94
2 WEST OF US 83 NORTH, Burleigh, ND
Built 1995 ADT: 22,200
INTERSTATE 94
UnknownOver: WASHINGTON ST SEPARATION
1 WEST OF US 83 NORTH, Burleigh, ND
Built 1965 ADT: 8,850
INTERSTATE 94
UnknownOver: WASHINGTON ST SEPARATION
1 WEST OF US 83 NORTH, Burleigh, ND
Built 1965 ADT: 8,850
INTERSTATE 94
UnknownOver: 4TH STREET SEPARATION
1 WEST OF US 83 NORTH, Burleigh, ND
Built 1965 ADT: 8,850
INTERSTATE 94
UnknownOver: 4TH STREET SEPARATION
1 WEST OF US 83 NORTH, Burleigh, ND
Built 1965 ADT: 8,850
US HIGHWAY
UnknownOver: I-94/STATE STREET INT
JUNCTION OF US 83N & I-94, Burleigh, ND
Built 1965 ADT: 17,700
CITY STREET
UnknownOver: I-94/19TH STREET SEP
1 EAST OF US 83 NORTH, Burleigh, ND
Built 1976 ADT: 12,300
BIS EXPWY/CENT DR
UnknownOver: I-94/EAST BISMARCK INT
2 EAST OF US 83 NORTH, Burleigh, ND
Built 1964 ADT: 7,700
80TH ST NE
UnknownOver: I-94/GIBBS TWP SEP
5 EAST OF US 83 NORTH, Burleigh, ND
Built 2022 ADT: 3,262
COUNTY HIGHWAY
UnknownOver: I94/APPLE CREEK SEP
7 EAST OF US 83 NORTH, Burleigh, ND
Built 2021 ADT: 4,486
COUNTY HIGHWAY
UnknownOver: I-94/MENOKEN INTERCHANGE
11 EAST OF US 83 NORTH, Burleigh, ND
Built 1965 ADT: 7,300
COUNTY HIGHWAY
UnknownOver: I94/MCKENZIE INTERCHANGE
6 WEST OF US 83 SOUTH, Burleigh, ND
Built 1965 ADT: 7,200
COUNTY HIGHWAY
UnknownOver: I94/MCKENZIE SEPARATION
3 WEST OF US 83 SOUTH, Burleigh, ND
Built 2017 ADT: 7,200
US HIGHWAY 83
UnknownOver: I94/STERLING INTER.
JUNCTION US 83 S-STERLING, Burleigh, ND
Built 1966 ADT: 5,800
COUNTY HIGHWAY
UnknownOver: I94/CLEAR LAKE SEP
3 EAST OF US 83 SOUTH, Burleigh, ND
Built 1966 ADT: 5,800
COUNTY HIGHWAY
UnknownOver: I94/DRISCOLL INTERCHANGE
8 EAST OF US 83 SOUTH, Burleigh, ND
Built 1966 ADT: 5,700
I-94 BUS LP BISMAR
UnknownOver: WASHINGTON STREET
WEST MAIN & WASHINGTON ST, Burleigh, ND
Built 1993 ADT: 200
Showing 1-50 of 4,242 bridges
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.