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 766

Fair

Over: STURGEON RIVER

0.3 MI S OF JCT CR 931, St. Louis, MN

Built 1963 Load: 24.0 t ADT: 20

CON 718

Fair

Over: CHANNEL

2.0 MI NE OF JCT TH 535, St. Louis, MN

Built 1984 Load: 24.3 t ADT: 4,191

CON 6302

Fair

Over: CHANNEL

2.0 MI NE OF JCT TH 535, St. Louis, MN

Built 1984 Load: 24.6 t ADT: 3,530

CSAH 4

Fair

Over: S BR WATER HEN CREEK

0.6 MI S OF JCT CR340, St. Louis, MN

Built 1945 Load: 24.9 t ADT: 760

UT 9218

Fair

Over: WATER HEN CREEK

0.1 MI S OF JCT CSAH 16, St. Louis, MN

Built 1984 Load: 24.9 t ADT: 5

CR 836

Fair

Over: EAST SAVANNA RIVER

0.7 MI S OF JCT CR 832, St. Louis, MN

Built 1979 Load: 24.9 t ADT: 125

I 35

Fair

Over: ABANDONED CITY ST

1.2 MI N OF W JCT TH 2, St. Louis, MN

Built 1969 Load: 25.3 t ADT: 35,500

CSAH 50

Fair

Over: FRENCH RIVER

0.1 MI SW OF JCT CR290, St. Louis, MN

Built 1962 Load: 25.5 t ADT: 474

CSAH 11

Fair

Over: KINGSBURY CREEK

0.1 MI W OF JCT TH 2, St. Louis, MN

Built 1983 Load: 25.5 t ADT: 3,250

CR 340

Fair

Over: WATER HEN CREEK

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

Built 1980 Load: 25.5 t ADT: 30

SERVICE RD

Fair

Over: JENKINS CREEK

1.5 MI E OF JCT CSAH 7, St. Louis, MN

Built 1981 Load: 25.5 t ADT: 2

CSAH 40

Fair

Over: SUCKER RIVER

0.1 MI N OF JCT CR258, St. Louis, MN

Built 1938 Load: 25.8 t ADT: 145

CON 719

Fair

Over: FILL

2.0 MI NE OF JCT TH 535, St. Louis, MN

Built 1984 Load: 25.9 t ADT: 2,777

CSAH 4

Fair

Over: ST LOUIS RIVER

1.0 MI SE OF JCT CSAH 10, St. Louis, MN

Built 1982 Load: 26.1 t ADT: 1,450

UT 9253

Fair

Over: WIGGLE CREEK

1.6 MI POINT ON LINWOOD, St. Louis, MN

Built 2012 Load: 26.1 t ADT: 1

CSAH 92

Fair

Over: DEMPSEY CREEK

1.3 MI W OF JCT CR 592, St. Louis, MN

Built 1941 Load: 26.1 t ADT: 300

M 846

Fair

Over: TISCHERS CREEK

0.4 MI W OF WOODLAND AVE, St. Louis, MN

Built 1950 Load: 26.1 t ADT: 526

CSAH 23

Fair

Over: PELICAN RIVER

4.5 MI E OF JCT TH 53, St. Louis, MN

Built 1985 Load: 26.8 t ADT: 690

VERMILION FALLS RD

Fair

Over: VERMILION RIVER

5.4 MI W OF JCT CSAH 24, St. Louis, MN

Built 1969 Load: 26.9 t ADT: 47

CSAH 48

Fair

Over: CLOQUET RIVER

1.9 MI N OF JCT CSAH 43, St. Louis, MN

Built 1988 Load: 27.1 t ADT: 730

CSAH 8

Fair

Over: ST LOUIS RIVER

0.5 MI E OF JCT TH 73, St. Louis, MN

Built 1974 Load: 27.8 t ADT: 590

LANGLEY ROAD

Fair

Over: CLOQUET RIVER

.9 MI E OF INT TWP 6205, St. Louis, MN

Built 1957 Load: 27.9 t ADT: 50

M 303

Fair

Over: STREAM

1.7 MI S OF JCT CSAH 16, St. Louis, MN

Built 1980 Load: 28.0 t ADT: 20

CR 834

Fair

Over: EAST SAVANNA RIVER

0.7 MI W OF JCT CR 186, St. Louis, MN

Built 1983 Load: 28.1 t ADT: 40

CSAH 28

Fair

Over: STONE RIVER

2.0 MI W OF JCT CSAH7, St. Louis, MN

Built 1939 Load: 28.2 t ADT: 45

CR 230

Fair

Over: ST LOUIS RIVER

0.5 MI S OF JCT CR 438, St. Louis, MN

Built 1977 Load: 28.4 t ADT: 25

CSAH 25

Fair

Over: BEAR RIVER

2.5 MI N OF JCT CSAH66, St. Louis, MN

Built 1941 Load: 28.8 t ADT: 365

CSAH 26

Fair

Over: PIKE RIVER

0.1 MI W OF JCT CR 411, St. Louis, MN

Built 1986 Load: 29.0 t ADT: 290

MN 73

Fair

Over: EAST BRANCH STURGEON R

11.6 MI N OF N JCT TH169, St. Louis, MN

Built 1940 Load: 29.4 t ADT: 556

MN 23

Fair

Over: ST LOUIS RIVER

AT WIS STATE LINE, St. Louis, MN

Built 1919 Load: 29.4 t ADT: 1,650

US 2

Fair

Over: STONEY BROOK RIVER

7.2 MI W OF JCT TH 33, St. Louis, MN

Built 1977 Load: 29.4 t ADT: 5,000

MN 1

Fair

Over: WEST TWO RIVERS

1.7 MI W OF TOWER, St. Louis, MN

Built 1963 Load: 29.4 t ADT: 3,520

US 53

Fair

Over: ST LOUIS RIVER

2.2 MI S OF JCT TH 37, St. Louis, MN

Built 1963 Load: 29.4 t ADT: 4,727

CSAH 5

Fair

Over: STREAM

0.8 MI N OF JCT CSAH27, St. Louis, MN

Built 1935 Load: 29.4 t ADT: 475

CSAH 22

Fair

Over: BEAR RIVER CREEK

1.6 MI W OF JCT CSAH5, St. Louis, MN

Built 1945 Load: 29.4 t ADT: 480

CR 737

Fair

Over: HELLWIG CREEK

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

Built 1938 Load: 29.4 t ADT: 5

MN 1

Fair

Over: BEAR ISLAND RIVER

6.2 MI S OF ELY, St. Louis, MN

Built 1949 Load: 29.4 t ADT: 1,175

MN 37

Fair

Over: DEMPSEY CREEK

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

Built 1953 Load: 29.4 t ADT: 4,700

MSAS 225

Fair

Over: SILVER CREEK

0.4 MI E OF JCT 9 AVE, St. Louis, MN

Built 1972 Load: 29.4 t ADT: 3,900

MSAS 178

Fair

Over: MILLER CREEK

0.1 MI S OF JCT CSAH 6, St. Louis, MN

Built 1975 Load: 29.4 t ADT: 5,164

MN 37

Fair

Over: WEST TWO RIVERS

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

Built 1976 Load: 29.4 t ADT: 4,300

CSAH 92

Fair

Over: STREAM

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

Built 1964 Load: 29.4 t ADT: 300

MN 37

Fair

Over: EAST TWO RIVERS

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

Built 1979 Load: 29.4 t ADT: 4,300

MN 37

Fair

Over: ELBOW CREEK

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

Built 1982 Load: 29.4 t ADT: 4,300

MSAS 178

Fair

Over: MILLER CREEK

0.2 MI S OF JCT TH 194, St. Louis, MN

Built 1986 Load: 29.4 t ADT: 2,686

M 536

Fair

Over: STEWART CREEK

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

Built 1919 Load: 29.4 t ADT: 125

M 919

Fair

Over: TISCHERS CREEK

0.2 MI W OF JCT CSAH 9, St. Louis, MN

Built 1973 Load: 29.4 t ADT: 125

M 1233

Fair

Over: MILLER CREEK

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

Built 1985 Load: 29.4 t ADT: 224

CON 1429

Fair

Over: FILL

2.0 MI NE OF JCT TH 535, St. Louis, MN

Built 1984 Load: 29.5 t ADT: 2,085

CR 481

Fair

Over: LITTLE FORK RIVER

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

Built 1981 Load: 29.8 t ADT: 60

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

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