St. Louis County, MN

641 public highway bridges

St. Louis County Bridge Snapshot

St. Louis County, Minnesota contains 641 public highway bridges in the FHWA National Bridge Inventory. Roughly 48.2% are rated “Good,” 34.2% “Fair,” 5% “Poor,” and 5% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in MN are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

641
Total Bridges
48.2%
Good
5%
Poor
5%
Structurally Deficient

Condition Distribution

Good
48.2% (309)
Fair
34.2% (219)
Poor
5% (32)
SD
5% (32)

All Bridges (641)

CR 310

Good

Over: EAST TWO RIVER

2.7 MI W OF JCT CSAH 7, St. Louis, MN

Built 2016 Load: 32.4 t ADT: 31

CR 406

Good

Over: WILLOW RIVER

0.5 MI S OF JCT CSAH74, St. Louis, MN

Built 2015 Load: 32.4 t ADT: 35

CR 611

Good

Over: PINE CREEK

0.8 MI S OF JCT CSAH44, St. Louis, MN

Built 2016 Load: 32.4 t ADT: 70

CSAH 82

Good

Over: GILMORE CREEK

0.6 MI E OF JCT TH73, St. Louis, MN

Built 2016 Load: 32.4 t ADT: 85

CR 488

Good

Over: FLINT CREEK

0.3 MI N OF JCT TH53, St. Louis, MN

Built 2016 Load: 32.4 t ADT: 30

CR 769

Good

Over: WILLOW RIVER

1.0 MI S OF JCT CSAH74, St. Louis, MN

Built 2017 Load: 32.4 t ADT: 5

CR 642

Good

Over: STREAM

0.7 MI E OF JCT CSAH 5, St. Louis, MN

Built 2017 Load: 32.4 t ADT: 130

CR 540

Good

Over: N BR FLINT CREEK

0.4 MI W OF JCT CR937, St. Louis, MN

Built 2016 Load: 32.4 t ADT: 90

CR 196

Good

Over: SKUNK CREEK

0.9 MI S OF JCT CSAH133, St. Louis, MN

Built 2016 Load: 32.4 t ADT: 45

CR 642

Good

Over: STREAM

0.9 MI W OF JCT CSAH25, St. Louis, MN

Built 2017 Load: 32.4 t ADT: 130

CR 409

Good

Over: WEST TWO RIVERS

0.4 MI W OF JCT TH135, St. Louis, MN

Built 2018 Load: 32.4 t ADT: 5

CR 547

Good

Over: BERRY CREEK

10.0 MI E OF JCT CSAH 4, St. Louis, MN

Built 2020 Load: 32.4 t ADT: 27

SFR 291

Good

Over: UNNAMED STREAM

9.2 MI S OF BRIMSON, St. Louis, MN

Built 2019 Load: 32.4 t ADT: 5

T 8130

Good

Over: PAAVOLA CREEK

0.2 MI S OF JCT UT 8157, St. Louis, MN

Built 2019 Load: 32.4 t ADT: 5

CSAH 37

Good

Over: AMITY CREEK

1.3 MI S OF JCT CSAH 10, St. Louis, MN

Built 2020 Load: 32.4 t ADT: 6,600

CSAH 7

Good

Over: BEARTRAP CREEK

1.3 MI W OF JCT MN 33, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 810

CSAH 6

Good

Over: DUTCH SLOUGH

340 FT E OF JCT TH 33, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 390

CSAH 133

Good

Over: DITCH

3.6 MI W OF JCT TH 53, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 550

CR 592

Good

Over: UNNAMED STREAM

1.1 MI W OF JCT CSAH 25, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 45

CSAH 5

Good

Over: UNNAMED STREAM

0.5 MI S OF JCT TH 1, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 360

CSAH 15

Good

Over: SHAW BUG CREEK

0.8 MI N OF JCT CSAH 49, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 140

CSAH 49

Good

Over: BOULDER CREEK

0.1 MI W OF JCT CSAH 4, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 40

CSAH 22

Good

Over: STONY BROOK

2.7 MI W OF JCT CSAH 5, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 480

CSAH 38

Good

Over: FRENCH RIVER

0.4 MI E OF JCT CR 254, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 40

CSAH 70

Good

Over: DUNKA RIVER

5.1 MI E OF JCT CSAH 112, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 1,100

CR 315

Good

Over: EAST TWO RIVER

0.3 MI N OF JCT CR 317, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 125

CSAH 101

Good

Over: EAST TWO RIVER

0.4 MI W OF JCT CSAH 101, St. Louis, MN

Built 2023 Load: 32.4 t ADT: 265

CSAH 84

Good

Over: SHANNON RIVER

0.3 MI E OF JCT CSAH 134, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 720

SFR 294

Good

Over: CHICKEN CREEK

1.8 MI NE OF JCT US 53, St. Louis, MN

Built 2022 Load: 32.4 t ADT: 1

CSAH 6

Good

Over: PINE RIVER

1.5 MI W OF JCT US 2, St. Louis, MN

Built 2023 Load: 32.4 t ADT: 390

M 1884

Good

Over: UNNAMED STREAM

270 FT S OF JCT I 35, St. Louis, MN

Built 2011 Load: 32.4 t ADT: 1

US 2

Good

Over: KINGSBURY CREEK

0.5 MI NW OF JCT TH 35, St. Louis, MN

Built 2012 Load: 32.4 t ADT: 9,788

MSAS 199

Good

Over: E SWAN RIVER

3.3 MI E OF JCT TH169, St. Louis, MN

Built 1959 Load: 32.4 t ADT: 375

CSAH 15

Good

Over: CLOQUET RIVER

2.4 MI S OF JCT CSAH 48, St. Louis, MN

Built 1979 Load: 32.7 t ADT: 680

CSAH 31

Good

Over: ST LOUIS RIVER

1.1 MI N OF JCT TH 2, St. Louis, MN

Built 1990 Load: 32.7 t ADT: 405

CR 492

Good

Over: STURGEON RIVER

0.7 MI W OF JCT TH73, St. Louis, MN

Built 2011 Load: 32.7 t ADT: 5

MN 61

Good

Over: LAKEWALK TRAIL

E OF JCT TH 61; 61ST AVE, St. Louis, MN

Built 2013 Load: 32.7 t ADT: 11,100

CSAH 33

Good

Over: SUCKER RIVER

0.4 MI S OF JCT CSAH 40, St. Louis, MN

Built 1988 Load: 32.7 t ADT: 245

CSAH 43

Good

Over: SUCKER RIVER

0.9 MI N OF JCT CSAH 50, St. Louis, MN

Built 1989 Load: 32.7 t ADT: 300

I 535

Good

Over: BNSF RR

0.6 MI S OF JCT TH 35, St. Louis, MN

Built 1969 Load: 32.8 t ADT: 33,021

MN 1

Good

Over: EAST TWO RIVERS

0.2 MI W OF TOWER, St. Louis, MN

Built 2011 Load: 33.4 t ADT: 3,520

CR 661

Good

Over: WEST TWO RIVER

0.1 MI N OF JCT CSAH 25, St. Louis, MN

Built 2010 Load: 33.4 t ADT: 110

UT 8109

Good

Over: WILLOW RIVER

0.3 MI S OF JCT CSAH74, St. Louis, MN

Built 2014 Load: 33.4 t ADT: 40

US 53

Good

Over: RICE RIVER

3.5 MI S OF COOK, St. Louis, MN

Built 1990 Load: 33.5 t ADT: 1,900

MN 169

Good

Over: PIKE RIVER

2.7 MI S OF W JCT TH 1, St. Louis, MN

Built 1983 Load: 33.9 t ADT: 3,347

US 53

Good

Over: DWP RR

.3 MI N OF N JCT TH 169, St. Louis, MN

Built 2004 Load: 33.9 t ADT: 2,800

I 35

Good

Over: DWP RY (ABAND)

4.9 MI SW OF W JCT TH 2, St. Louis, MN

Built 1975 Load: 33.9 t ADT: 12,672

FR199

Good

Over: HUNTINGSHACK RIVER

0.4 MI FROM JCT SC116, St. Louis, MN

Built 2018 Load: 34.3 t ADT: 10

MN 1

Good

Over: FLINT CREEK

5.3 MI W OF COOK, St. Louis, MN

Built 2009 Load: 34.3 t ADT: 399

MN 1

Good

Over: LITTLE FORK RIVER

8.5 MI W OF JCT TH 53, St. Louis, MN

Built 1983 Load: 34.3 t ADT: 155

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial