Mahnomen County, MN

40 public highway bridges

Mahnomen County Bridge Snapshot

Mahnomen County, Minnesota contains 40 public highway bridges in the FHWA National Bridge Inventory. Roughly 67.5% are rated “Good,” 27.5% “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.

40
Total Bridges
67.5%
Good
5%
Poor
5%
Structurally Deficient

Condition Distribution

Good
67.5% (27)
Fair
27.5% (11)
Poor
5% (2)
SD
5% (2)

All Bridges (40)

CSAH 11

Fair

Over: WHITE EARTH RIVER

0.7 MI E OF JCT TH 59, Mahnomen, MN

Built 1966 Load: 20.0 t ADT: 335

CSAH 4

Fair

Over: WILD RICE RIVER

0.6 MI S OF JCT CSAH 14, Mahnomen, MN

Built 1981 Load: 25.8 t ADT: 310

CR 130

Fair

Over: MARSH CREEK

2.1 MI W OF JCT TH 59, Mahnomen, MN

Built 1976 Load: 27.1 t ADT: 30

CR 113

Fair

Over: WHITE EARTH RIVER

1.4 MI NE OF JCT TH 113, Mahnomen, MN

Built 1977 Load: 29.4 t ADT: 70

T 39

Fair

Over: MARSH CREEK (CD #91-91A)

0.9 MI W OF JCT TH 59, Mahnomen, MN

Built 1985 Load: 29.4 t ADT: 25

CSAH 7

Fair

Over: SAND HILL RIVER

2.2 MI N OF JCT CSAH 1, Mahnomen, MN

Built 1966 Load: 30.8 t ADT: 50

T 15

Fair

Over: MARSH CREEK (JD # 91)

1.2 MI N OF JCT CSAH 1, Mahnomen, MN

Built 1978 Load: 32.4 t ADT: 7

T 314

Fair

Over: WILD RICE RIVER

2.4 MI S OF JCT CSAH 14, Mahnomen, MN

Built 1984 Load: 32.6 t ADT: 30

CSAH 2

Fair

Over: WILD RICE RIVER

0.8 MI N OF JCT TH200, Mahnomen, MN

Built 1980 Load: 35.6 t ADT: 140

CR 135

Fair

Over: WILD RICE RIVER

0.6 MI N OF JCT TH 200, Mahnomen, MN

Built 1986 Load: 38.9 t ADT: 50

US 59

Fair

Over: WILD RICE RIVER

1.4 MI S OF JCT TH 200, Mahnomen, MN

Built 1979 Load: 53.9 t ADT: 3,950

CSAH 3

Good

Over: WILD RICE RIVER

0.8 MI N OF JCT TH 200, Mahnomen, MN

Built 1973 Load: 22.0 t ADT: 210

T 132

Good

Over: SPRING CREEK

2.2 MI W OF JCT TH 59, Mahnomen, MN

Built 1986 Load: 26.1 t ADT: 15

MN 200

Good

Over: WILD RICE RIVER

0.9 MI E OF JCT TH 59, Mahnomen, MN

Built 1973 Load: 26.5 t ADT: 1,507

MN 113

Good

Over: WHITE EARTH RIVER

6.6 MI E OF WAUBUN, Mahnomen, MN

Built 1977 Load: 29.4 t ADT: 1,093

CSAH 9

Good

Over: MARSH CREEK

1.4 MI E OF JCT CSAH 8, Mahnomen, MN

Built 1976 Load: 29.4 t ADT: 15

CR 121

Good

Over: WHITE EARTH RIVER

0.6 MI E OF JCT CR 125, Mahnomen, MN

Built 1986 Load: 29.4 t ADT: 10

T 100

Good

Over: SPRING CREEK

1.1 MI S OF JCT CSAH 5, Mahnomen, MN

Built 1981 Load: 29.4 t ADT: 25

T 41

Good

Over: MARSH CREEK (CD #91-91A)

0.8 MI W OF JCT TH 59, Mahnomen, MN

Built 1985 Load: 29.4 t ADT: 34

T 83

Good

Over: WHITE EARTH RIVER

0.3 MI E OF JCT CR 125, Mahnomen, MN

Built 1988 Load: 29.4 t ADT: 40

T 243

Good

Over: WHITE EARTH RIVER

2.1 MI SW OF JCT TH 113, Mahnomen, MN

Built 1986 Load: 29.4 t ADT: 55

T 128

Good

Over: WHITE EARTH RIVER

0.1 MI E OF JCT CSAH 13, Mahnomen, MN

Built 1977 Load: 29.4 t ADT: 10

CSAH 25

Good

Over: WHITE EARTH RIVER

0.8 MI S OF JCT TH 200, Mahnomen, MN

Built 1979 Load: 29.4 t ADT: 435

T 75

Good

Over: MARSH CREEK

1.1 MI W OF JCT CSAH 9, Mahnomen, MN

Built 2018 Load: 32.4 t ADT: 40

CSAH 12

Good

Over: WHITE EARTH RIVER

1.4 MI SW OF JCT CSAH 18, Mahnomen, MN

Built 2018 Load: 32.4 t ADT: 20

T 108

Good

Over: WHITE EARTH RIVER

1.2 MI E OF JCT US 59, Mahnomen, MN

Built 2021 Load: 32.4 t ADT: 15

T 128

Good

Over: WHITE EARTH RIVER

0.5 MI E OF JCT CR 113, Mahnomen, MN

Built 2021 Load: 32.4 t ADT: 10

T 102

Good

Over: SPRING CREEK

1.2 MI S OF JCT CSAH 5, Mahnomen, MN

Built 1985 Load: 32.4 t ADT: 15

T 23

Good

Over: MARSH CRK (JD #91;91)

0.8 MI N OF JCT CSAH 1, Mahnomen, MN

Built 1991 Load: 35.9 t ADT: 15

CR 101

Good

Over: WILD RICE RIVER

0.1 MI S OF JCT CSAH 1;1, Mahnomen, MN

Built 1985 Load: 36.0 t ADT: 75

CSAH 25

Good

Over: WILD RICE RIVER

0.4 MI E OF JCT TH 59, Mahnomen, MN

Built 1980 Load: 37.1 t ADT: 435

CR 107

Good

Over: SAND HILL RIVER

2.0 MI W JCT US 59, Mahnomen, MN

Built 2008 Load: 39.2 t ADT: 50

CSAH 6

Good

Over: WHITE EARTH RIVER

1.5 MI E OF JCT TH 59, Mahnomen, MN

Built 1991 Load: 39.2 t ADT: 355

CSAH 10

Good

Over: WILD RICE RIVER

1.4 MI N OF JCT CSAH 5, Mahnomen, MN

Built 2005 Load: 40.2 t ADT: 670

T 22

Good

Over: JD # 91-91A(MARSH CREEK

1.6 MI E OF JCT TH 59, Mahnomen, MN

Built 2005 Load: 40.8 t ADT: 20

MN 200

Good

Over: TWIN LAKES CREEK

11.5 MI E OF JCT US 59, Mahnomen, MN

Built 2022 Load: 41.8 t ADT: 1,213

MN 200

Good

Over: MARSH RIVER

4.3 MI W OF JCT TH 59, Mahnomen, MN

Built 2003 Load: 45.1 t ADT: 849

CR 132

Good

Over: WILD RICE RIVER

0.9 MI S JCT CSAH 14, Mahnomen, MN

Built 2008 Load: 47.7 t ADT: 60

CSAH 5

Poor

Over: WILD RICE RIVER

0.5 MI S OF JCT CSAH 5, Mahnomen, MN

Built 1966 Load: 29.5 t ADT: 150

T 76

Structurally Deficient

Over: MARSH CREEK

0.4 MI W OF JCT CR 136, Mahnomen, MN

Built 1920 Load: 4.7 t ADT: 4

Related

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