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)

US 53

Good

Over: CLOQUET RIVER

0.2 MI N OF JCT TH 33, St. Louis, MN

Built 2000 Load: 37.6 t ADT: 5,150

US 53

Good

Over: JOHNSON CREEK

1.7 MI N OF CSAH 65, St. Louis, MN

Built 2007 Load: 37.6 t ADT: 1,846

CSAH 51

Good

Over: PRAIRIE RIVER

0.4 MI S OF JCT CR 816, St. Louis, MN

Built 2022 Load: 37.6 t ADT: 120

CR 666

Good

Over: RAILROAD; WYMAN CREEK

1.8 MI NE OF JCT CSAH 110, St. Louis, MN

Built 2023 Load: 37.6 t ADT: 212

CSAH 97

Good

Over: EMBARRASS RIVER

0.5 MI W OF JCT CSAH4, St. Louis, MN

Built 2013 Load: 37.9 t ADT: 435

CSAH 4

Good

Over: WATER HEN CREEK

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

Built 2015 Load: 37.9 t ADT: 760

CR 937

Good

Over: FLINT CREEK

0.2 MI S OF JCT CR540, St. Louis, MN

Built 2016 Load: 37.9 t ADT: 110

CR 860

Good

Over: ARTICHOKE RIVER

0.1 MI E OF JCT CSAH 31, St. Louis, MN

Built 2021 Load: 37.9 t ADT: 5

UT 8128

Good

Over: SHANNON RIVER

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

Built 2017 Load: 38.2 t ADT: 79

CSAH 59

Good

Over: PALEFACE CREEK

0.2 MI N OF JCT CR 542, St. Louis, MN

Built 2021 Load: 38.2 t ADT: 100

US 53

Good

Over: JOHNSON CREEK

1.7 MI N OF CSAH 65, St. Louis, MN

Built 2007 Load: 38.5 t ADT: 1,846

CR 500

Good

Over: LITTLE FORK RIVER

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

Built 1998 Load: 38.8 t ADT: 25

T 3632

Good

Over: STURGEON RIVER

0.1 MI E OF CO LINE, St. Louis, MN

Built 1994 Load: 38.8 t ADT: 500

CSAH 56

Good

Over: MIDWAY RIVER

0.8 MI E OF JCT TH2, St. Louis, MN

Built 2013 Load: 38.9 t ADT: 2,200

M 4

Good

Over: EAST TWO RIVER

0.1 MI E OF JCT TH135, St. Louis, MN

Built 2017 Load: 38.9 t ADT: 37

CSAH 24

Good

Over: TWO MILE CREEK

0.6 MI W OF JCT UT 8121, St. Louis, MN

Built 2016 Load: 38.9 t ADT: 85

CR 189

Good

Over: JOULA CREEK

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

Built 2017 Load: 38.9 t ADT: 35

MN 194

Good

Over: DWP RY

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

Built 1990 Load: 39.0 t ADT: 4,800

MN 135

Good

Over: EMBARRASS RIVER

0.19 MI W OF CSAH 138, St. Louis, MN

Built 2005 Load: 39.0 t ADT: 3,830

CSAH 24

Good

Over: FLINT CREEK

0.5 MI S OF JCT CSAH 78, St. Louis, MN

Built 1997 Load: 39.2 t ADT: 2,150

CSAH 20

Good

Over: EMBARRASS RIVER

0.6 MI S OF JCT CSAH 97, St. Louis, MN

Built 1994 Load: 39.2 t ADT: 800

CSAH 16

Good

Over: MUD HEN CREEK

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

Built 2008 Load: 39.2 t ADT: 1,300

CSAH 88

Good

Over: BURNTSIDE RIVER

0.4 MI S OF JCT CR404, St. Louis, MN

Built 2017 Load: 39.2 t ADT: 760

M 107

Good

Over: W. MUNGER STATE TRAIL

0.1 MI E OF JCT TH23, St. Louis, MN

Built 2011 Load: 39.2 t ADT: 1

CON 5785

Good

Over: FILL

0.1 MI SW OF JCT 5TH AVE, St. Louis, MN

Built 1985 Load: 39.2 t ADT: 1,890

CON 4690

Good

Over: FILL

0.1 MI NE OF JCT 5TH AVE, St. Louis, MN

Built 1986 Load: 39.2 t ADT: 34,500

CON 610

Good

Over: FILL

0.1 MI SW OF JCT 5TH AVE, St. Louis, MN

Built 1985 Load: 39.2 t ADT: 4,008

CR 910

Good

Over: FLINT CREEK

0.2 MI S OF JCT CR 540, St. Louis, MN

Built 1996 Load: 39.2 t ADT: 255

CSAH 23

Good

Over: PELICAN RIVER

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

Built 2003 Load: 39.2 t ADT: 1,100

CSAH 78

Good

Over: FLINT CREEK

0.6 MI S OF JCT CSAH 78, St. Louis, MN

Built 2003 Load: 39.2 t ADT: 185

CR 965

Good

Over: MCCARTY RIVER

1.9 MI S JCT CSAH 8, St. Louis, MN

Built 2007 Load: 39.2 t ADT: 5

CR 615

Good

Over: SPRING RIDGE CREEK

0.1 MI W OF JCT CR 620, St. Louis, MN

Built 2012 Load: 39.2 t ADT: 265

CSAH 24

Good

Over: LITTLE FORK RIVER

0.3 MI S OF JCT CSAH 115, St. Louis, MN

Built 1978 Load: 39.2 t ADT: 2,800

CR 223

Good

Over: STREAM

0.2 MI N OF JCT CSAH 48, St. Louis, MN

Built 1984 Load: 39.2 t ADT: 5

M 47

Good

Over: E BR AMITY CREEK

0.4 MI E OF JCT CR 246, St. Louis, MN

Built 1988 Load: 39.2 t ADT: 20

CR 866

Good

Over: ARTICHOKE RIVER

0.3 MI E OF JCT CSAH 31, St. Louis, MN

Built 1987 Load: 39.2 t ADT: 55

CSAH 133

Good

Over: DITCH

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

Built 1991 Load: 39.2 t ADT: 550

CR 310

Good

Over: ELBOW CREEK

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

Built 1991 Load: 39.2 t ADT: 135

CSAH 16

Good

Over: TOIMI CREEK

1.5 MI E OF JCT CSAH 44, St. Louis, MN

Built 1988 Load: 39.2 t ADT: 790

MN 169

Good

Over: SHAGAWA RIVER

0.1 MI W OF E CO LINE, St. Louis, MN

Built 1992 Load: 39.2 t ADT: 1,750

SERVICE RD

Good

Over: DITCH

0.5 MI S OF JCT CR 320, St. Louis, MN

Built 1996 Load: 39.2 t ADT: 4

SERVICE RD

Good

Over: DITCH

0.4 MI S OF JCT CR 320, St. Louis, MN

Built 1996 Load: 39.2 t ADT: 4

SERVICE RD

Good

Over: DITCH

0.3 MI S OF JCT CR 320, St. Louis, MN

Built 1996 Load: 39.2 t ADT: 4

CR 320

Good

Over: DITCH

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

Built 1996 Load: 39.2 t ADT: 5

CSAH 5

Good

Over: BEAR RIVER

0.5 MI W OF JCT CR501, St. Louis, MN

Built 2017 Load: 39.5 t ADT: 360

MN 61

Good

Over: KNIFE RIVER

AT E CO LINE, St. Louis, MN

Built 1960 Load: 39.5 t ADT: 4,547

US 53

Good

Over: PALEFACE RIVER

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

Built 2012 Load: 39.8 t ADT: 3,845

CR 500

Good

Over: Flint Creek

0.4 MI E OF JCT CR 481, St. Louis, MN

Built 2000 Load: 39.8 t ADT: 75

CR 834

Good

Over: EAST SAVANNA RIVER

0.3 MI S OF JCT LAURIE RD, St. Louis, MN

Built 2014 Load: 39.9 t ADT: 40

CR 209

Good

Over: LITTLE WHITEFACE RIVER

0.7 MI N OF JCT CSAH133, St. Louis, MN

Built 2017 Load: 39.9 t ADT: 20

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

Related

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