Carlton County, MN

144 public highway bridges

Carlton County Bridge Snapshot

Carlton County, Minnesota contains 144 public highway bridges in the FHWA National Bridge Inventory. Roughly 45.8% are rated “Good,” 31.9% “Fair,” 7.6% “Poor,” and 7.6% 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.

144
Total Bridges
45.8%
Good
7.6%
Poor
7.6%
Structurally Deficient

Condition Distribution

Good
45.8% (66)
Fair
31.9% (46)
Poor
7.6% (11)
SD
7.6% (11)

All Bridges (144)

CSAH 22

Fair

Over: W BRANCH KETTLE RIVER

4.6 MI N OF JCT CSAH 22, Carlton, MN

Built 1999 Load: 35.9 t ADT: 95

CR 105

Fair

Over: BLACKHOOF CREEK

1.1 MI E OF JCT CSAH 5, Carlton, MN

Built 1974 Load: 35.9 t ADT: 161

T 68

Fair

Over: BLACKHOOF CREEK

0.4 MI W OF JCT CSAH 5, Carlton, MN

Built 1974 Load: 35.9 t ADT: 45

T 411

Fair

Over: W BR KETTLE RIVER

0.4 MI W OF JCT CSAH 22, Carlton, MN

Built 1982 Load: 35.9 t ADT: 29

T 230

Fair

Over: SPLIT ROCK RIVER

1.0 MI S OF JCT TH 27, Carlton, MN

Built 1985 Load: 35.9 t ADT: 35

T 383

Fair

Over: MIDWAY RIVER

0.2 MI S OF JCT CSAH 2, Carlton, MN

Built 1981 Load: 37.4 t ADT: 48

MN 27

Fair

Over: GILLESPIE BROOK

4.7 MI W OF E JCT TH 73, Carlton, MN

Built 2004 Load: 37.9 t ADT: 1,470

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

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

MN 33

Fair

Over: ST LOUIS RIVER

2.8 MI N OF JCT TH 35, Carlton, MN

Built 1995 Load: 40.5 t ADT: 13,800

MN 27

Fair

Over: MOOSE HORN RIVER

1.1 MI W OF JCT TH 35, Carlton, MN

Built 1970 Load: 40.8 t ADT: 1,838

CSAH 61

Fair

Over: LITTLE OTTER CREEK

1.0 MI NE OF JCT CSAH 5, Carlton, MN

Built 1951 Load: 41.1 t ADT: 1,585

I 35

Fair

Over: BNSF RR

0.2 MI S OF JCT TH 210, Carlton, MN

Built 1966 Load: 42.0 t ADT: 9,950

MN 73

Fair

Over: W BR KETTLE RIVER

10.3 MI S OF JCT TH 210, Carlton, MN

Built 2017 Load: 42.1 t ADT: 1,007

T 491

Fair

Over: MIDWAY RIVER

0.1 MI W OF E CO LINE, Carlton, MN

Built 1993 Load: 44.7 t ADT: 99

CSAH 45

Fair

Over: BNSF RR

0.3 MI N OF JCT CSAH 61, Carlton, MN

Built 1997 Load: 47.3 t ADT: 12,293

CSAH 61

Fair

Over: OTTER CREEK

0.9 MI S OF JCT TH 210, Carlton, MN

Built 1956 Load: 47.6 t ADT: 2,884

T 213

Good

Over: SILVER CREEK

0.8 MI S OF JCT CSAH 12, Carlton, MN

Built 1999 Load: 26.1 t ADT: 10

T 42

Good

Over: W FK MOOSE HORN RIVER

1.0 MI W OF JCT CR 157, Carlton, MN

Built 2012 Load: 26.1 t ADT: 1

MN 210

Good

Over: POWER CO WATER PIPE

4.3 MI E OF JCT TH 45, Carlton, MN

Built 1975 Load: 26.1 t ADT: 710

T 178

Good

Over: DEAD MOOSE RIVER

0.9 MI S OF JCT CSAH 6, Carlton, MN

Built 1991 Load: 26.1 t ADT: 13

I 35

Good

Over: MIDWAY RIVER

9.3 MI SW OF W JCT TH 2, Carlton, MN

Built 1971 Load: 27.9 t ADT: 14,250

I 35

Good

Over: MIDWAY RIVER

9.3 MI SW OF W JCT TH 2, Carlton, MN

Built 1971 Load: 27.9 t ADT: 14,250

I 35

Good

Over: BIG OTTER CREEK

0.5 MI S OF JCT TH 210, Carlton, MN

Built 1965 Load: 29.4 t ADT: 9,950

I 35

Good

Over: BIG OTTER CREEK

0.5 MI S OF JCT TH 210, Carlton, MN

Built 1965 Load: 29.4 t ADT: 9,950

CSAH 21

Good

Over: KETTLE RIVER

3.6 MI N OF JCT CSAH 4, Carlton, MN

Built 1984 Load: 32.0 t ADT: 45

CSAH 23

Good

Over: TAMARACK RIVER

0.3 MI N OF JCT TH 210, Carlton, MN

Built 2012 Load: 32.4 t ADT: 324

CR 157

Good

Over: W FK MOOSE HORN RIVER

1.1 MI N OF JCT CSAH 6, Carlton, MN

Built 2012 Load: 32.4 t ADT: 235

CR 112

Good

Over: DEER CREEK

0.8 MI W OF JCT CSAH 1, Carlton, MN

Built 2013 Load: 32.4 t ADT: 31

CR 157

Good

Over: W FK MOOSE HORN RIVER

2.3 MI S OF JCT CSAH 4, Carlton, MN

Built 2013 Load: 32.4 t ADT: 125

CR 124

Good

Over: HASTY BROOK

0.1 MI S OF CO LINE, Carlton, MN

Built 2013 Load: 32.4 t ADT: 60

CR 124

Good

Over: HASTY BROOK

0.7 MI S OF CO LINE, Carlton, MN

Built 2013 Load: 32.4 t ADT: 60

CSAH 12

Good

Over: GILLESPIE BROOK

0.6 MI E OF JCT CR 132, Carlton, MN

Built 2013 Load: 32.4 t ADT: 360

CSAH 2

Good

Over: HAY CREEK

0.5 MI E OF JCT CSAH 1, Carlton, MN

Built 2013 Load: 32.4 t ADT: 2,650

T 274

Good

Over: W FK MOOSE HORN RIVER

0.9 MI S OF JCT CR 157, Carlton, MN

Built 2014 Load: 32.4 t ADT: 32

CSAH 8

Good

Over: LITTLE NET RIVER

1.8 MI NE OF JCT CR 145, Carlton, MN

Built 2016 Load: 32.4 t ADT: 184

CSAH 5

Good

Over: OTTER CREEK

0.5 MI W OF JCT CR 115, Carlton, MN

Built 2015 Load: 32.4 t ADT: 386

MN 210

Good

Over: STREAM

0.7 MI E OF PARK ENT, Carlton, MN

Built 2012 Load: 32.4 t ADT: 710

MN 210

Good

Over: TAMARACK RIVER

5.5 MI W OF JCT TH 73, Carlton, MN

Built 2023 Load: 32.4 t ADT: 2,154

MN 210

Good

Over: OTTER CREEK

0.2 MI W OF JCT TH 35 SB, Carlton, MN

Built 2023 Load: 32.4 t ADT: 7,600

MN 210

Good

Over: ISLAND LAKE OUTLET

0.5 MI E OF JCT TH 73, Carlton, MN

Built 2023 Load: 32.4 t ADT: 3,500

MN 210

Good

Over: TAMARACK RIVER

2.5 MI W OF JCT TH 73, Carlton, MN

Built 2023 Load: 32.4 t ADT: 2,154

CSAH 61

Good

Over: WILLARD MUNGER TRAIL

3.2 MI NE OF JCT CSAH 6, Carlton, MN

Built 1995 Load: 32.7 t ADT: 1,224

CR 130

Good

Over: W BR KETTLE RIVER

1.3 MI W OF JCT TH 73, Carlton, MN

Built 2013 Load: 33.4 t ADT: 35

CR 156

Good

Over: KETTLE RIVER

1.4 E OF JCT TH 73, Carlton, MN

Built 2013 Load: 34.3 t ADT: 86

CSAH 27

Good

Over: MIDWAY RIVER

0.3 MI S JCT CSAH 2, Carlton, MN

Built 2006 Load: 34.6 t ADT: 501

T 1265

Good

Over: MIDWAY RIVER

0.4 MI E OF JCT CSAH 1, Carlton, MN

Built 1978 Load: 35.5 t ADT: 120

T 432

Good

Over: MOOSE HORN RIVER

0.6 MI W OF JCT CSAH 61, Carlton, MN

Built 1985 Load: 35.9 t ADT: 48

CSAH 23

Good

Over: LITTLE TAMARACK RIVER

0.5 MI S OF JCT CR 126, Carlton, MN

Built 1962 Load: 35.9 t ADT: 136

T 177

Good

Over: SPLIT ROCK RIVER

0.1 MI S OF JCT TH 27, Carlton, MN

Built 1982 Load: 35.9 t ADT: 53

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