State profile · Below national median SD

Minnesota bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Minnesota — drawn straight from the FHWA National Bridge Inventory.

11,969
Public bridges
55.0%
Good condition
3.6%
Poor condition
3.6%
Structurally deficient

Total Bridges

11,969

Public highway bridges in Minnesota

Good Condition

55.0%

6,580 bridges rated 7-9

5.0pp vs 50% benchmark

Poor Condition

3.6%

435 bridges rated 0-4

Structurally Deficient

3.6%

435 bridges flagged for repair priority

-3.4pp vs national avg 7.0%

Minnesota vs national bridge condition

Minnesota — Good condition share 55.0%
National avg

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

Minnesota — Structurally deficient share 12.1%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Minnesota 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 Minnesota on the same metric.

51

Virginia

3.03% top marginal rate
Structure
Progressive
Burden @ $100K
$14,122

01

Alabama

3.35% top marginal rate
Structure
Progressive
Burden @ $100K
$13,471
Selected

27

Minnesota

3.63% top marginal rate
Structure
Progressive
Burden @ $100K
$11,969

09

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

47

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426

Bridges Needing Most Attention in Minnesota

Six lowest-condition bridges in Minnesota, ranked by composite NBI rating. Each is inspected at least every 24 months.

All Bridges in Minnesota

T 1488

Fair

Over: SPLIT ROCK RIVER

0.6 MI S OF JCT CR 75, Aitkin, MN

Built 1972 Load: 38.5 t ADT: 8

IRR BIA RTE 18

Fair

Over: BATTLE RIVER

19 KM SE OF PONEMAH, Beltrami, MN

Built 1978 Load: 38.5 t ADT: 400

M 280

Fair

Over: MISSISSIPPI RIVER

0.7 MI NW OF JCT CSAH 11, Beltrami, MN

Built 2000 Load: 38.5 t ADT: 267

CSAH 38

Fair

Over: WATONWAN RIVER

0.2 MI E OF JCT TH 169, Blue Earth, MN

Built 1983 Load: 38.5 t ADT: 276

CSAH 61

Fair

Over: BNSF RR

0.2 MI S OF JCT TH 210, Carlton, MN

Built 1979 Load: 38.5 t ADT: 2,884

CSAH 77

Fair

Over: GULL LAKE NARROWS

0.3 MI E OF JCT CSAH 78, Cass, MN

Built 1996 Load: 38.5 t ADT: 3,050

CSAH 21

Fair

Over: N BR ROOT RIVER

0.9 MI N OF JCT CSAH 6, Fillmore, MN

Built 1977 Load: 38.5 t ADT: 135

UT 115

Fair

Over: BOSTICK CREEK

0.8 MI S OF JCT CSAH 8, Lake of the Woods, MN

Built 1979 Load: 38.5 t ADT: 40

T 159

Fair

Over: REDWOOD RIVER

0.4 MI E OF JCT CSAH 30, Redwood, MN

Built 1978 Load: 38.5 t ADT: 16

CR 303

Fair

Over: PIKE RIVER

0.1 MI W OF JCT TH 135, St. Louis, MN

Built 1990 Load: 38.5 t ADT: 35

T 264

Fair

Over: LITTLE COTTONWOOD RIVER

1.0 MI N OF JCT CSAH 24, Brown, MN

Built 1979 Load: 38.6 t ADT: 85

CSAH 6

Fair

Over: STREAM

1.5 MI W OF JCT CSAH 13, Dodge, MN

Built 1935 Load: 38.6 t ADT: 39

CSAH 66

Fair

Over: JUD DITCH # 1

0.9 MI N OF JCT CSAH 69, Polk, MN

Built 1995 Load: 38.6 t ADT: 5

US 52

Fair

Over: N FK ZUMBRO RIVER

2.2 MI N OF N JCT TH 60, Goodhue, MN

Built 1983 Load: 38.7 t ADT: 10,674

MSAS 174

Fair

Over: CENTENNIAL LK

0.1 MI E OF CSAH 17, Hennepin, MN

Built 1995 Load: 38.7 t ADT: 3,924

MN 61

Fair

Over: CROW CREEK

8.3 MI NE OF JCT CSAH 2, Lake, MN

Built 1968 Load: 38.7 t ADT: 4,763

MSAS 117

Fair

Over: SOUTH FORK CROW RIVER

0.1 MI S OF JCT TH 7, McLeod, MN

Built 1978 Load: 38.7 t ADT: 9,300

T 251

Fair

Over: CEDAR RIVER

1.6 MI NE OF JCT TH 218, Mower, MN

Built 1973 Load: 38.7 t ADT: 29

MN 37

Fair

Over: DM;IR RY

16.0 MI E OF JCT TH 169, St. Louis, MN

Built 1982 Load: 38.7 t ADT: 4,300

CSAH 21

Fair

Over: PINE ISLAND CREEK

0.1 MI NW OF S CO LINE, Wabasha, MN

Built 1979 Load: 38.7 t ADT: 610

CSAH 29

Fair

Over: DM E RR

0.8 MI SE OF JCT CSAH 12, Brown, MN

Built 1988 Load: 38.8 t ADT: 5,400

SPR 4

Fair

Over: MIDDLE RIVER

0.2 MI W JCT CSAH 39, Marshall, MN

Built 2007 Load: 38.8 t ADT: 50

CSAH 10

Fair

Over: JUD DITCH # 36

0.4 MI S OF JCT TH 68, Redwood, MN

Built 1964 Load: 38.8 t ADT: 295

M 361

Fair

Over: MILLER CREEK

0.3 MI N OF 3RD ST, St. Louis, MN

Built 2011 Load: 38.8 t ADT: 220

T 166

Fair

Over: LE SUEUR RIVER

0.6 MI N OF JCT CSAH 9, Waseca, MN

Built 1996 Load: 38.8 t ADT: 16

CR 135

Fair

Over: WILD RICE RIVER

0.6 MI N OF JCT TH 200, Mahnomen, MN

Built 1986 Load: 38.9 t ADT: 50

CSAH 12

Fair

Over: RUM RIVER

0.4 MI W OF JCT CSAH 1, Mille Lacs, MN

Built 2013 Load: 38.9 t ADT: 520

MSAS 121

Fair

Over: RAVINE

0.26 M NE OF JCT CSAH 19, Washington, MN

Built 2011 Load: 38.9 t ADT: 790

CSAH 1

Fair

Over: DITCH

0.6 MI N JCT CSAH 13, Chippewa, MN

Built 2007 Load: 39.0 t ADT: 289

CSAH 15

Fair

Over: YELLOW BANK RIVER

0.5 MI N OF JCT CSAH 40, Lac qui Parle, MN

Built 1992 Load: 39.0 t ADT: 220

T 114

Fair

Over: TEN MILE CREEK

0.5 MI W OF JCT CSAH 35, Lac qui Parle, MN

Built 2002 Load: 39.0 t ADT: 44

US 212

Fair

Over: BUFFALO CREEK

5.5 MI W OF JCT TH 22, McLeod, MN

Built 1982 Load: 39.0 t ADT: 4,016

T 76

Fair

Over: S FK CROW RIVER

0.9 MI S OF JCT TH 7, Meeker, MN

Built 2004 Load: 39.0 t ADT: 60

CSAH 37

Fair

Over: LAC QUI PARLE RIVER

0.6 MI N OF JCT TH 67, Yellow Medicine, MN

Built 1975 Load: 39.0 t ADT: 43

CSAH 36

Fair

Over: SKUNK RIVER

3.1 MI S OF JCT TH 27, Morrison, MN

Built 1989 Load: 39.1 t ADT: 353

T 439

Fair

Over: PLATTE RIVER

0.5 MI N OF JCT CSAH 43, Morrison, MN

Built 1990 Load: 39.1 t ADT: 91

CSAH 29

Fair

Over: MOOSE RIVER

1.2 MI S OF JCT CSAH 19, Aitkin, MN

Built 2005 Load: 39.2 t ADT: 46

IRR BIA RTE 18

Fair

Over: HAY CREEK

9KM NORTHEAST OF REDBY MN, Beltrami, MN

Built 1986 Load: 39.2 t ADT: 400

FR2208

Fair

Over: EVERTON CREEK

1 MI SE OF JCT CSAH 28, Beltrami, MN

Built 1949 Load: 39.2 t ADT: 28

UT 780

Fair

Over: MOOSE RIVER (JD # 21)

2.0 MI E OF JCT CSAH 1, Beltrami, MN

Built 1985 Load: 39.2 t ADT: 10

T 50

Fair

Over: ELK RIVER

0.5 MI S OF JCT TH 25, Benton, MN

Built 2003 Load: 39.2 t ADT: 50

CR 51

Fair

Over: DITCH 9

AT JCT CSAH 7, Benton, MN

Built 2000 Load: 39.2 t ADT: 180

US 169

Fair

Over: BLUE EARTH RIVER

4.5 MI N OF JCT TH 30, Blue Earth, MN

Built 1979 Load: 39.2 t ADT: 1,800

CSAH 46

Fair

Over: MAPLE RIVER

1.2 MI E OF JCT CSAH 7, Blue Earth, MN

Built 1971 Load: 39.2 t ADT: 248

US 169

Fair

Over: STREAM

10.5 MI N OF JCT TH 30, Blue Earth, MN

Built 1994 Load: 39.2 t ADT: 3,084

US 169

Fair

Over: STREAM

10.8 MI N OF JCT TH 30, Blue Earth, MN

Built 1994 Load: 39.2 t ADT: 3,084

MN 210

Fair

Over: BNSF RR

1.6 MI E OF JCT TH 73, Carlton, MN

Built 1990 Load: 39.2 t ADT: 3,500

CSAH 20

Fair

Over: W INLET TO RICE LAKE

0.4 MI NE OF JCT CR 127, Carver, MN

Built 2002 Load: 39.2 t ADT: 4,100

CSAH 33

Fair

Over: JOINT DITCH # 1

1.1 MI N OF JCT TH 7, Carver, MN

Built 1990 Load: 39.2 t ADT: 2,800

CSAH 33

Fair

Over: JOINT DITCH # 1

1.4 MI N OF JCT TH 7, Carver, MN

Built 1990 Load: 39.2 t ADT: 2,800

Showing 4,151-4,200 of 11,969 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.