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)

MN 33

Unknown

Over: ST LOUIS R, BNSF RR; ST

2.5 MI N OF JCT TH 35, Carlton, MN

Built 1997 ADT: 2,003

MN 33

Unknown

Over: I 35

AT JCT TH 33; TH 35, Carlton, MN

Built 1965 ADT: 19,150

I 35

Unknown

Over: TH 45

AT JCT TH 45; TH 35, Carlton, MN

Built 1965 ADT: 5,443

I 35

Unknown

Over: TH 45

AT JCT TH 45; TH 35, Carlton, MN

Built 1965 ADT: 5,443

MN 73

Unknown

Over: I 35

AT JCT TH 73; TH 35, Carlton, MN

Built 1965 ADT: 16,787

CSAH 13

Unknown

Over: I 35

3.6 MI N OF JCT TH 27, Carlton, MN

Built 1968 ADT: 16,787

CSAH 6

Unknown

Over: I 35

4.6 MI N OF JCT TH 27;, Carlton, MN

Built 1968 ADT: 18,848

CSAH 4

Unknown

Over: I 35

11.2 MI N OF JCT TH 27, Carlton, MN

Built 1968 ADT: 20,057

CSAH 1

Unknown

Over: I 35

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

Built 1971 ADT: 29,172

I 35

Unknown

Over: CSAH 61

3.5 MI S OF JCT TH 210, Carlton, MN

Built 1965 ADT: 1,050

I 35

Unknown

Over: CSAH 61

3.5 MI S OF JCT TH 210, Carlton, MN

Built 1965 ADT: 1,050

I 35

Unknown

Over: KORBY ROAD

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

Built 1973 ADT: 107

I 35

Unknown

Over: KORBY ROAD

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

Built 1973 ADT: 107

CR 151

Unknown

Over: I 35

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

Built 1971 ADT: 29,172

T 389

Unknown

Over: I 35

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

Built 1971 ADT: 29,172

CR 138

Unknown

Over: I 35

3.0 MI N OF JCT TH 27, Carlton, MN

Built 1968 ADT: 16,787

I 35

Unknown

Over: TH 27; TRAIL

1.4 MI N OF JCT TH 73, Carlton, MN

Built 1968 ADT: 1,965

I 35

Unknown

Over: TH 27; TRAIL

1.4 MI N OF JCT TH 73, Carlton, MN

Built 1968 ADT: 1,965

CSAH 3

Unknown

Over: I 35;RAMP

0.5 MI N OF JCT TH 33, Carlton, MN

Built 1982 ADT: 19,150

CON 289

Unknown

Over: I 35

0.3 MI N OF JCT TH 33, Carlton, MN

Built 1982 ADT: 19,150

I 35

Unknown

Over: TH 210

AT JCT TH 210, Carlton, MN

Built 1960 ADT: 7,660

T 175

Fair

Over: W BRANCH KETTLE RIVER

0.4 MI S OF JCT CSAH 22, Carlton, MN

Built 2016 Load: 4.9 t ADT: 5

CSAH 61

Fair

Over: MIDWAY RIVER

0.3 MI W OF JCT CSAH 1, Carlton, MN

Built 2000 Load: 19.6 t ADT: 4,973

CSAH 1

Fair

Over: OTTER CREEK

0.2 MI S OF JCT TH 210, Carlton, MN

Built 1953 Load: 22.9 t ADT: 5,938

CR 157

Fair

Over: W FK MOOSE HORN RIVER

3.2 MI S OF JCT CSAH 4, Carlton, MN

Built 1953 Load: 23.9 t ADT: 125

UT 264

Fair

Over: DITCH

0.8 MI S OF JCT TH 210, Carlton, MN

Built 1983 Load: 23.9 t ADT: 56

CSAH 2

Fair

Over: Midway River

2.4 mi E of jct CSAH 1, Carlton, MN

Built 2002 Load: 26.1 t ADT: 2,650

CR 129

Fair

Over: HEIKKILA CREEK

0.9 MI E OF JCT TH 73, Carlton, MN

Built 1998 Load: 26.1 t ADT: 20

MN 73

Fair

Over: MOOSE HORN RIVER

0.6 MI S OF JCT TH 27, Carlton, MN

Built 1987 Load: 26.5 t ADT: 8,030

CSAH 17

Fair

Over: SPLIT ROCK RIVER

0.2 MI S OF JCT TH 27, Carlton, MN

Built 1961 Load: 27.8 t ADT: 89

CR 130

Fair

Over: W BR KETTLE RIVER

0.3 MI S OF JCT CR 129, Carlton, MN

Built 1965 Load: 28.4 t ADT: 35

I 35

Fair

Over: PORTAGE RIVER

1.1 MI N OF JCT TH 73, Carlton, MN

Built 1968 Load: 29.4 t ADT: 16,400

MN 73

Fair

Over: HASTY BROOK

5.3 MI N OF JCT TH 210, Carlton, MN

Built 1923 Load: 29.4 t ADT: 1,700

I 35

Fair

Over: LITTLE OTTER CREEK

2.5 MI S OF JCT TH 210, Carlton, MN

Built 1965 Load: 29.4 t ADT: 9,950

I 35

Fair

Over: LITTLE OTTER CREEK

2.5 MI S OF JCT TH 210, Carlton, MN

Built 1965 Load: 29.4 t ADT: 9,950

CSAH 21

Fair

Over: KETTLE RIVER

0.8 MI N OF JCT CSAH 4, Carlton, MN

Built 1984 Load: 32.3 t ADT: 45

CSAH 5

Fair

Over: LITTLE OTTER CREEK

1.7 MI S OF JCT TH 210, Carlton, MN

Built 1986 Load: 32.4 t ADT: 698

CSAH 4

Fair

Over: MOOSE HORN RIVER

0.2 MI W OF JCT CSAH 61, Carlton, MN

Built 1970 Load: 32.4 t ADT: 814

RESERVATION ROAD

Fair

Over: FOND DU LAC CREEK

8KM NW 135/ MN 33, Carlton, MN

Built 2014 Load: 32.7 t ADT: 290

I 35

Fair

Over: MOOSE HORN RIVER

1.8 MI N OF JCT TH 27, Carlton, MN

Built 1968 Load: 32.7 t ADT: 8,200

I 35

Fair

Over: MOOSE HORN RIVER

1.8 MI N OF JCT TH 27, Carlton, MN

Built 1968 Load: 32.7 t ADT: 8,200

CSAH 8

Fair

Over: N FK NEMADJI RIVER

3.1 MI E OF JCT CSAH 11, Carlton, MN

Built 1996 Load: 32.7 t ADT: 630

T 60

Fair

Over: BLACKHOOF CREEK

0.3 MI E OF JCT CR 104, Carlton, MN

Built 1981 Load: 32.7 t ADT: 23

I 35

Fair

Over: BNSF RR

0.1 MI W OF JCT TH 45, Carlton, MN

Built 1965 Load: 33.0 t ADT: 10,305

I 35

Fair

Over: BNSF RR

0.1 MI W OF JCT TH 45, Carlton, MN

Built 1965 Load: 33.9 t ADT: 10,305

MN 210

Fair

Over: ST LOUIS RIVER

1.0 MI E OF JCT TH 45, Carlton, MN

Built 1961 Load: 34.3 t ADT: 1,641

I 35

Fair

Over: ST LOUIS RIVER

0.3 MI N OF JCT TH 45, Carlton, MN

Built 1971 Load: 34.5 t ADT: 14,250

I 35

Fair

Over: ST LOUIS RIVER

0.3 MI N OF JCT TH 45, Carlton, MN

Built 1971 Load: 34.5 t ADT: 14,250

MN 210

Fair

Over: BNSF RR

0.4 MI W OF JCT TH 45, Carlton, MN

Built 1982 Load: 34.9 t ADT: 3,497

CSAH 22

Fair

Over: W BR KETTLE RIVER

4.4 MI SE OF JCT TH 210, Carlton, MN

Built 1999 Load: 35.9 t ADT: 188

Related

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