Polk County, MN

260 public highway bridges

Polk County Bridge Snapshot

Polk County, Minnesota contains 260 public highway bridges in the FHWA National Bridge Inventory. Roughly 65% are rated “Good,” 31.2% “Fair,” 3.1% “Poor,” and 3.1% 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.

260

Total Bridges

65%

Good

3.1%

Poor

3.1%

Structurally Deficient

Condition Distribution

Good

65% (169)

Fair

31.2% (81)

Poor

3.1% (8)

SD

3.1% (8)

All Bridges (260)

Sort:

US 2

Over: 4th ST NW

0.6 W OF JCT TH 220, Polk, MN

Built 1964 ADT: 6,064

US 59

Over: US 2

AT JCT TH 59, Polk, MN

Built 1971 ADT: 3,750

CSAH 15

Over: RED LAKE RIVER

0.1 MI W OF JCT CSAH 61, Polk, MN

Built 1968 Load: 13.7 t ADT: 477

CSAH 65

Over: GRAND MARAIS RIVER

1.7 MI E OF JCT TH 220, Polk, MN

Built 1969 Load: 13.7 t ADT: 100

CSAH 64

Over: GRAND MARAIS STATE DITCH

1.9 MI S OF JCT CSAH 22, Polk, MN

Built 1974 Load: 21.9 t ADT: 43

CSAH 51

Over: SAND HILL RIVER

1.7 MI E OF JCT TH 75, Polk, MN

Built 1977 Load: 21.9 t ADT: 25

T 94

Over: BURNHAM CREEK

0.3 MI E OF JCT CSAH 14, Polk, MN

Built 1978 Load: 22.4 t ADT: 48

MSAS 113

Over: RED RIVER OF THE NORTH

0.2 MI W OF 3RD AVE SE, Polk, MN

Built 1967 Load: 24.6 t ADT: 6,630

MN 220

Over: JUD DITCH # 1

3.1 MI S OF JCT TH 1, Polk, MN

Built 1980 Load: 26.1 t ADT: 1,450

T 97

Over: BURNHAM CREEK

0.5 MI W OF JCT CSAH 14, Polk, MN

Built 1982 Load: 26.1 t ADT: 25

UNDETERMINED RD

Over: MAPLE LAKE OUTLET (DAM)

NORTH OF BR # 92436, Polk, MN

Built 1925 Load: 26.5 t ADT: 5

US 75

Over: CO DITCH # 43

0.5 MI N OF ANGUS, Polk, MN

Built 1977 Load: 29.4 t ADT: 685

MN 102

Over: BURNHAM CREEK

8.1 MI NW OF JCT TH 32, Polk, MN

Built 1948 Load: 29.4 t ADT: 1,287

MN 220

Over: GRAND MARAIS RIVER

6.2 MI N OF JCT TH 2, Polk, MN

Built 1983 Load: 29.4 t ADT: 3,412

CSAH 62

Over: CO DITCH # 2

0.1 MI S OF JCT CSAH 67, Polk, MN

Built 1968 Load: 30.0 t ADT: 40

CR 217

Over: BURNHAM CREEK

0.5 MI N OF JCT TH 75, Polk, MN

Built 1979 Load: 30.4 t ADT: 16

MN 9

Over: SAND HILL RIVER

0.5 MI S OF JCT CSAH 1, Polk, MN

Built 1980 Load: 30.6 t ADT: 483

CSAH 6

Over: LOST RIVER

0.7 MI S OF JCT CSAH 6, Polk, MN

Built 1967 Load: 30.7 t ADT: 140

CSAH 66

Over: JUD DITCH # 75

1.9 MI N OF JCT CSAH 23, Polk, MN

Built 1979 Load: 30.7 t ADT: 203

CR 228

Over: JUD DITCH # 75

1.9 MI N OF JCT CSAH 23, Polk, MN

Built 1979 Load: 30.7 t ADT: 27

CSAH 11

Over: RED LAKE RIVER

0.5 MI E OF JCT CSAH 13, Polk, MN

Built 1977 Load: 31.4 t ADT: 3,100

T 407

Over: CO DITCH # 7

0.4 MI S OF NW COR. SEC, Polk, MN

Built 1967 Load: 31.4 t ADT: 68

CSAH 20

Over: CO DITCH # 66

0.7 MI S OF JCT CSAH 21, Polk, MN

Built 1971 Load: 31.4 t ADT: 1,011

CSAH 19

Over: GRAND MARAIS RIVER

2.9 MI E OF JCT TH 220, Polk, MN

Built 1955 Load: 31.7 t ADT: 874

MN 220

Over: RED LAKE RIVER

0.5 MI SW OF JCT TH 2, Polk, MN

Built 1973 Load: 31.8 t ADT: 1,027

CSAH 20

Over: CO DITCH # 2

0.1 MI S OF JCT CSAH 67, Polk, MN

Built 1969 Load: 32.4 t ADT: 754

CR 232

Over: SAND HILL RIVER

1.4 MI W OF JCT TH 9, Polk, MN

Built 1992 Load: 32.4 t ADT: 82

US 59

Over: SAND HILL RIVER

10 MI S OF JCT TH 2, Polk, MN

Built 1999 Load: 32.7 t ADT: 1,307

CSAH 67

Over: CO DITCH # 7

0.1 MI W OF JCT CR 230, Polk, MN

Built 1967 Load: 33.0 t ADT: 77

CSAH 45

Over: CO DITCH # 79

0.9 MI E OF JCT CSAH 14, Polk, MN

Built 1967 Load: 33.0 t ADT: 228

T 105

Over: BURNHAM CREEK

1.7 MI W OF JCT CR 217, Polk, MN

Built 1967 Load: 33.0 t ADT: 20

US 75

Over: RED LAKE RIVER

2.2 MI S OF JCT TH 2, Polk, MN

Built 1986 Load: 33.1 t ADT: 2,860

CSAH 28

Over: LOST RIVER

0.4 MI S OF JCT CSAH 6, Polk, MN

Built 1967 Load: 33.9 t ADT: 55

CSAH 22

Over: JUD DITCH # 75

2.0 MI N OF JCT CSAH 64, Polk, MN

Built 1973 Load: 33.9 t ADT: 455

CR 226

Over: GRAND MARAIS RIVER

2.8 MI E OF JCT TH 220, Polk, MN

Built 1976 Load: 35.9 t ADT: 120

CSAH 14

Over: CO DITCH # 9

3.0 MI N OF JCT CSAH 51, Polk, MN

Built 1976 Load: 35.9 t ADT: 366

CSAH 30

Over: POPLAR RIVER

0.2 MI E OF JCT CSAH 8, Polk, MN

Built 1977 Load: 35.9 t ADT: 190

T 200

Over: BURNHAM CREEK

0.8 MI S OF JCT TH 75, Polk, MN

Built 1978 Load: 35.9 t ADT: 33

T 622

Over: POPLAR RIVER

0.5 MI W OF JCT CSAH 8, Polk, MN

Built 1978 Load: 35.9 t ADT: 25

CSAH 51

Over: MAPLE CREEK

2.5 MI E OF JCT CSAH 48, Polk, MN

Built 1978 Load: 35.9 t ADT: 90

CSAH 30

Over: POPLAR RIVER

1.5 MI N OF JCT TH 2, Polk, MN

Built 1974 Load: 35.9 t ADT: 109

CR 214

Over: CO DITCH # 15

0.2 MI N OF JCT CSAH 45, Polk, MN

Built 1977 Load: 35.9 t ADT: 260

T 212

Over: BURNHAM CREEK (CD #12)

1.6 MI S OF JCT CSAH 45, Polk, MN

Built 1980 Load: 35.9 t ADT: 24

CSAH 23

Over: JUD DITCH # 75,BR 1

0.6 MI W OF JCT CSAH 20, Polk, MN

Built 1981 Load: 35.9 t ADT: 235

CR 267

Over: CO DITCH # 44

1.8 MI W OF JCT TH 75, Polk, MN

Built 1989 Load: 35.9 t ADT: 32

T 553

Over: POPLAR RIVER

1.8 MI N OF JCT TH 2, Polk, MN

Built 1983 Load: 35.9 t ADT: 24

CSAH 21

Over: CO DITCH # 2

2.5 MI E OF JCT CSAH 20, Polk, MN

Built 1992 Load: 35.9 t ADT: 1,030

T 598

Over: POPLAR RIVER

0.1 MI E OF JCT TH 2, Polk, MN

Built 1971 Load: 35.9 t ADT: 72

MSAS 115

Over: S MAIN ST/RED LAKE RIVER

0.1 MI SW OF JCT US 2, Polk, MN

Built 1973 Load: 36.6 t ADT: 1,800

MSAS 117

Over: RED LAKE RIVER

0.2 MI NE OF JCT TH 2, Polk, MN

Built 1981 Load: 36.6 t ADT: 1,481

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026