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:

CSAH 66

Over: CO DITCH # 2

0.1 MI S OF JCT CSAH 67, Polk, MN

Built 1968 Load: 37.2 t ADT: 468

CSAH 10

Over: SAND HILL RIVER

1.9 MI S OF JCT CSAH 1, Polk, MN

Built 1959 Load: 38.1 t ADT: 415

CSAH 66

Over: JUD DITCH # 1

0.9 MI N OF JCT CSAH 69, Polk, MN

Built 1995 Load: 38.6 t ADT: 5

T 347

Over: CO DITCH # 7

2.5 MI W OF JCT CSAH 20, Polk, MN

Built 1998 Load: 39.2 t ADT: 10

T 981

Over: Coulee

1.2 mi E of jct CSAH 20, Polk, MN

Built 2002 Load: 39.2 t ADT: 10

T 407

Over: CD # 2

0.1 MI S JCT CSAH 67, Polk, MN

Built 2006 Load: 39.2 t ADT: 45

T 72

Over: CO DITCH # 6

0.1 MI S OF JCT CSAH 41, Polk, MN

Built 2005 Load: 39.2 t ADT: 10

T 1049

Over: CO DITCH # 6

0.1 MI S OF JCT CSAH 41, Polk, MN

Built 2005 Load: 39.2 t ADT: 10

SERVICE RD

Over: CO DITCH # 119

0.1 MI S OF JCT CSAH 41, Polk, MN

Built 2005 Load: 39.2 t ADT: 1

T 598

Over: POPLAR RIVER

1.0 MI E OF JCT TH 2, Polk, MN

Built 1981 Load: 39.2 t ADT: 69

T 598

Over: POPLAR RIVER

0.5 MI E OF JCT TH 2, Polk, MN

Built 1981 Load: 39.2 t ADT: 69

T 500

Over: SAND HILL RIVER

1.1 MI N OF JCT CSAH 1, Polk, MN

Built 1985 Load: 39.2 t ADT: 29

CSAH 19

Over: CO DITCH # 2

2.5 MI E OF JCT CSAH 20, Polk, MN

Built 1992 Load: 39.2 t ADT: 129

CSAH 11

Over: GENTILLY RIVER

0.4 MI E OF JCT CSAH 46, Polk, MN

Built 1982 Load: 39.2 t ADT: 1,146

T 99

Over: ANDERSON CREEK

2.6 MI E OF JCT CSAH 56, Polk, MN

Built 1986 Load: 39.2 t ADT: 18

T 995

Over: STREAM

1.4 MI S OF JCT CSAH 19, Polk, MN

Built 1990 Load: 39.2 t ADT: 32

T 44

Over: SAND HILL RIVER

0.5 MI E OF JCT CSAH 44, Polk, MN

Built 1988 Load: 39.2 t ADT: 20

T 412

Over: GRAND MARAIS RIVER

1.6 MI N OF JCT CSAH 63, Polk, MN

Built 1990 Load: 39.2 t ADT: 20

T 404

Over: CO DITCH # 66

0.6 MI N OF JCT CSAH 21, Polk, MN

Built 1991 Load: 39.2 t ADT: 25

T 169

Over: CO DITCH # 66

1.7 MI S OF JCT CSAH 21, Polk, MN

Built 1991 Load: 39.2 t ADT: 3

T 410

Over: CO DITCH # 2

0.1 MI S OF JCT CSAH 67, Polk, MN

Built 1992 Load: 39.2 t ADT: 18

T 421

Over: CO DITCH # 2

0.1 MI S OF JCT CSAH 67, Polk, MN

Built 1992 Load: 39.2 t ADT: 7

T 892

Over: POPLAR RIVER

2.0 MI NW OF JCT CSAH 35, Polk, MN

Built 1925 Load: 39.2 t ADT: 8

CR 213

Over: IMP. SAND HILL RIVER

0.8 MI S OF JCT CSAH 1, Polk, MN

Built 1965 Load: 41.2 t ADT: 48

US 2

Over: RED LAKE RIVER

IN CROOKSTON, Polk, MN

Built 1990 Load: 41.8 t ADT: 4,760

CSAH 1

Over: POPLAR RIVER

3.5 MI W OF JCT CSAH 24, Polk, MN

Built 1966 Load: 42.4 t ADT: 660

CSAH 45

Over: CO DITCH # 15

1.6 MI E OF JCT TH 9, Polk, MN

Built 1966 Load: 42.4 t ADT: 50

CSAH 33

Over: LOST RIVER

1.0 MI S OF COUNTY LINE, Polk, MN

Built 1973 Load: 43.8 t ADT: 25

T 424

Over: Jud Ditch # 75

1.9 mi N of jct CSAH 22, Polk, MN

Built 2001 Load: 44.2 t ADT: 20

T 64

Over: SAND HILL RIVER

1.2 MI E OF JCT TH 75, Polk, MN

Built 2000 Load: 45.9 t ADT: 15

CSAH 14

Over: SAND HILL RIVER

0.9 MI N OF JCT CSAH 1, Polk, MN

Built 1996 Load: 46.1 t ADT: 366

T 426

Over: JD # 75

1.1 MI S JCT CSAH 22, Polk, MN

Built 2006 Load: 50.6 t ADT: 4

T 418

Over: Jud Ditch # 75

1.9 mi N of jct CSAH 23, Polk, MN

Built 2002 Load: 53.8 t ADT: 20

US 75

Over: STREAM

3.5 MI N OF CROOKSTON, Polk, MN

Built 1977 Load: 29.4 t ADT: 1,624

MN 9

Over: STREAM

0.3 MI N OF BELTRAMI, Polk, MN

Built 1974 Load: 29.4 t ADT: 483

MN 9

Over: CO DITCH # 15

6.3 MI S OF CROOKSTON, Polk, MN

Built 1974 Load: 29.4 t ADT: 400

T 410

Over: JUD DITCH # 75

1.9 MI N OF JCT CSAH 23, Polk, MN

Built 1979 Load: 30.7 t ADT: 36

CSAH 20

Over: JUD DITCH # 75

1.7 MI N OF JCT CSAH 23, Polk, MN

Built 1978 Load: 31.4 t ADT: 754

US 59

Over: BNSF RR

0.1 MI S OF JCT TH 2, Polk, MN

Built 1971 Load: 31.7 t ADT: 1,550

CSAH 64

Over: GRAND MARAIS

1.5MI S OF JCT CSAH 22, Polk, MN

Built 2013 Load: 32.4 t ADT: 43

T 335

Over: GRAND MARAIS

0.4MI W OF JCT CSAH 64, Polk, MN

Built 2013 Load: 32.4 t ADT: 45

M 27

Over: SAND HILL RIVER

0.6 MI W OF JCT MN 32, Polk, MN

Built 2013 Load: 32.4 t ADT: 48

T 178

Over: BURNHAM CREEK

0.5 MI S OF JCT CSAH 9, Polk, MN

Built 2020 Load: 32.4 t ADT: 48

T 749

Over: POPLAR RIVER

1.6 MI N OF JCT US 2, Polk, MN

Built 2021 Load: 32.4 t ADT: 48

T 84

Over: WATERSHED # 117

1.9 MI W OF JCT MN 9, Polk, MN

Built 2021 Load: 32.4 t ADT: 48

T 724

Over: HILL RIVER

450 FT S OF JCT CSAH 35, Polk, MN

Built 2023 Load: 32.4 t ADT: 48

T 591

Over: POPLAR RIVER

200 FT E OF JCT T 587, Polk, MN

Built 2023 Load: 32.4 t ADT: 48

US 75

Over: STREAM

2.6 MI S OF ANGUS, Polk, MN

Built 2016 Load: 32.4 t ADT: 685

US 75

Over: STREAM

1.7 MI N OF ANGUS, Polk, MN

Built 2016 Load: 32.4 t ADT: 685

US 2

Over: STREAM

4.5 MI SE OF FOSSTON, Polk, MN

Built 2018 Load: 32.4 t ADT: 4,050

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